Update to new version 5.4HEADstable/jermamaster

Signed-off-by: Thomas Duval <thomas.duval@orange.com>
Change-Id: Idcd868133d75928a1ffd74d749ce98503e0555ea

47 files changed, 8267 insertions, 0 deletions

diff --git a/old/python_moondb/.gitignore b/old/python_moondb/.gitignore
new file mode 100644
index 00000000..9c29724f
--- /dev/null
+++ b/old/python_moondb/.gitignore
@@ -0,0 +1,106 @@
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+
+/tests/unit_python/database.db
diff --git a/old/python_moondb/Changelog b/old/python_moondb/Changelog
new file mode 100644
index 00000000..9236c260
--- /dev/null
+++ b/old/python_moondb/Changelog
@@ -0,0 +1,128 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+
+CHANGES
+=======
+
+0.1.0
+-----
+- First version of the moon_db library.
+
+1.0.0
+-----
+- First public version of the moon_db library.
+
+1.0.1
+-----
+- Update setup.py to force the installation of requirements.
+
+1.0.2
+-----
+- Test PyPi upload
+
+1.0.3
+-----
+- Fix a bug in core.py
+- Update db_manager
+
+1.1.0
+-----
+- When adding a subject, check the existence of that user in the Keystone DB and
+  create it if necessary
+
+1.2.0
+-----
+- Update the db_manager in order to use it for tests
+
+1.2.1
+-----
+- Update moon_db_manager in order to use it for unit tests
+
+1.2.2
+-----
+- Fix a bug in moon_db_manager
+
+1.2.3
+-----
+- Cleanup moon_db code
+
+1.2.4
+-----
+- Update the name of the library (from moon_db)
+
+1.2.5
+-----
+- Code cleaning
+
+1.2.6
+-----
+- Remove some code duplication in moon_db
+- handle the extra field for the perimeter
+
+1.2.7
+-----
+- Fix some bugs
+
+1.2.8
+-----
+- Add unique constraints on db tables
+
+1.2.9
+-----
+- Add some verifications when deleting some elements in database
+
+1.2.10
+-----
+- Update the migration script because of a bug introduced in 1.2.8 in rule table
+- Fix bugs due to the previous version
+
+1.2.11
+------
+- adding test cases for perimeter
+- adding subject_object_action to model_test
+- update import of exception
+- add unit_test to test_model
+- add validation for not accepting blank perimeter name or category name
+
+1.2.12
+------
+- Fix the SubjectExisting exception problem
+
+1.2.13
+------
+- Add validations and refactor test cases
+
+1.2.14
+------
+- Fix some bugs for the manager and clean the code
+
+1.2.15
+------
+- Fix test cases after removing syntax error in exceptions
+
+1.2.16
+------
+- Fix the "key length error" in meta_rule table
+
+1.2.17
+------
+- adding extra validation for addition and deletion dependencies
+
+1.2.18
+------
+- adding changelog
+
+1.2.19
+------
+- adding extra validation for update requests
+
+1.2.20
+------
+- adding extra validation of rule content
+- update validation for category with meta-rule dependencies
+- update validation on updating meta-rule
+- applying PyLint
+- fixing Jira issues related to update policy
\ No newline at end of file
diff --git a/old/python_moondb/LICENSE b/old/python_moondb/LICENSE
new file mode 100644
index 00000000..d6456956
--- /dev/null
+++ b/old/python_moondb/LICENSE
@@ -0,0 +1,202 @@
+
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+
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diff --git a/old/python_moondb/MANIFEST.in b/old/python_moondb/MANIFEST.in
new file mode 100644
index 00000000..02655837
--- /dev/null
+++ b/old/python_moondb/MANIFEST.in
@@ -0,0 +1,10 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+include README.md
+include LICENSE
+include setup.py
+include requirements.txt
+graft bin
\ No newline at end of file
diff --git a/old/python_moondb/README.md b/old/python_moondb/README.md
new file mode 100644
index 00000000..d36c6ae3
--- /dev/null
+++ b/old/python_moondb/README.md
@@ -0,0 +1,32 @@
+# python_moondb
+
+This package contains the database module for the Moon project
+It is designed to provide a driver to access the Moon database.
+
+For any other information, refer to the parent project:
+
+    https://git.opnfv.org/moon
+
+## Build
+### Build Python Package
+```bash
+cd ${MOON_HOME}/python_moondb
+python3 setup.py sdist bdist_wheel
+```
+
+### Push Python Package to PIP
+```bash
+cd ${MOON_HOME}/python_moondb
+gpg --detach-sign -u "${GPG_ID}" -a dist/python_moondb-X.Y.Z-py3-none-any.whl
+gpg --detach-sign -u "${GPG_ID}" -a dist/python_moondb-X.Y.Z.tar.gz
+twine upload dist/python_moondb-X.Y.Z-py3-none-any.whl dist/python_moondb-X.Y.Z-py3-none-any.whl.asc
+twine upload dist/python_moondb-X.Y.Z.tar.gz dist/python_moondb-X.Y.Z.tar.gz.asc
+```
+
+## Test
+### Python Unit Test
+launch Docker for Python unit tests
+```bash
+cd ${MOON_HOME}/python_moondb
+docker run --rm --volume $(pwd):/data wukongsun/moon_python_unit_test:latest
+```
\ No newline at end of file
diff --git a/old/python_moondb/bin/drop_tables.sql b/old/python_moondb/bin/drop_tables.sql
new file mode 100644
index 00000000..f5f65ea7
--- /dev/null
+++ b/old/python_moondb/bin/drop_tables.sql
@@ -0,0 +1,18 @@
+use moon;
+drop table action_assignments;
+drop table object_assignments;
+drop table subject_assignments;
+drop table subject_scopes;
+drop table action_scopes;
+drop table object_scopes;
+drop table action_categories;
+drop table subject_categories;
+drop table object_categories;
+drop table rules;
+drop table sub_meta_rules;
+drop table actions;
+drop table objects;
+drop table subjects;
+drop table tenants;
+drop table intra_extensions;
+show tables;
diff --git a/old/python_moondb/python_moondb/__init__.py b/old/python_moondb/python_moondb/__init__.py
new file mode 100644
index 00000000..37c9a725
--- /dev/null
+++ b/old/python_moondb/python_moondb/__init__.py
@@ -0,0 +1,6 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+__version__ = "1.2.20"
diff --git a/old/python_moondb/python_moondb/api/__init__.py b/old/python_moondb/python_moondb/api/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/__init__.py
diff --git a/old/python_moondb/python_moondb/api/keystone.py b/old/python_moondb/python_moondb/api/keystone.py
new file mode 100644
index 00000000..57521c36
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/keystone.py
@@ -0,0 +1,105 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import os
+import requests
+import json
+from uuid import uuid4
+import logging
+from python_moonutilities import exceptions, configuration
+from python_moonutilities.security_functions import filter_input, login, logout
+from python_moondb.api.managers import Managers
+
+logger = logging.getLogger("moon.db.api.keystone")
+
+
+class KeystoneManager(Managers):
+
+    def __init__(self, connector=None):
+        self.driver = connector.driver
+        Managers.KeystoneManager = self
+        conf = configuration.get_configuration("openstack/keystone")['openstack/keystone']
+
+        self.__url = conf['url']
+        self.__user = conf['user']
+        self.__password = conf['password']
+        self.__domain = conf['domain']
+        self.__project = conf['project']
+        try:
+            os.environ.pop("http_proxy")
+            os.environ.pop("https_proxy")
+        except KeyError:
+            pass
+
+    def __get(self, endpoint, _exception=exceptions.KeystoneError):
+        _headers = login()
+        req = requests.get("{}{}".format(self.__url, endpoint), headers=_headers, verify=False)
+        if req.status_code not in (200, 201):
+            logger.error(req.text)
+            raise _exception
+        data = req.json()
+        logout(_headers)
+        return data
+
+    def __post(self, endpoint, data=None, _exception=exceptions.KeystoneError):
+        _headers = login()
+        req = requests.post("{}{}".format(self.__url, endpoint),
+                            data=json.dumps(data),
+                            headers=_headers, verify=False)
+        if req.status_code == 409:
+            logger.warning(req.text)
+            raise exceptions.KeystoneUserConflict
+        if req.status_code not in (200, 201):
+            logger.error(req.text)
+            raise _exception
+        data = req.json()
+        logout(_headers)
+        return data
+
+    def list_projects(self):
+        return self.__get(endpoint="/projects/", _exception=exceptions.KeystoneProjectError)
+
+    @filter_input
+    def create_project(self, tenant_dict):
+        if "name" not in tenant_dict:
+            raise exceptions.KeystoneProjectError("Cannot get the project name.")
+        _project = {
+            "project": {
+                "description": tenant_dict['description'] if 'description' in tenant_dict else "",
+                "domain_id": tenant_dict['domain'] if 'domain' in tenant_dict else "default",
+                "enabled": True,
+                "is_domain": False,
+                "name": tenant_dict['name']
+            }
+        }
+        return self.__post(endpoint="/projects/",
+                           data=_project,
+                           _exception=exceptions.KeystoneProjectError)
+
+    @filter_input
+    def get_user_by_name(self, username, domain_id="default"):
+        return self.__get(endpoint="/users?name={}&domain_id={}".format(username, domain_id),
+                          _exception=exceptions.KeystoneUserError)
+
+    @filter_input
+    def create_user(self, subject_dict):
+        _user = {
+            "user": {
+                "enabled": True,
+                "name": subject_dict['name'] if 'name' in subject_dict else uuid4().hex,
+            }
+        }
+        if 'project' in subject_dict:
+            _user['user']['default_project_id'] = subject_dict['project']
+        if 'domain' in subject_dict:
+            _user['user']['domain_id'] = subject_dict['domain']
+        if 'password' in subject_dict:
+            _user['user']['password'] = subject_dict['password']
+        try:
+            return self.__post(endpoint="/users/",
+                               data=_user,
+                               _exception=exceptions.KeystoneUserError)
+        except exceptions.KeystoneUserConflict:
+            return True
diff --git a/old/python_moondb/python_moondb/api/managers.py b/old/python_moondb/python_moondb/api/managers.py
new file mode 100644
index 00000000..414725f6
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/managers.py
@@ -0,0 +1,16 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import logging
+
+logger = logging.getLogger("moon.db.api.managers")
+
+
+class Managers(object):
+    """Object that links managers together"""
+    ModelManager = None
+    KeystoneManager = None
+    PDPManager = None
+    PolicyManager = None
diff --git a/old/python_moondb/python_moondb/api/model.py b/old/python_moondb/python_moondb/api/model.py
new file mode 100644
index 00000000..4f6c34cb
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/model.py
@@ -0,0 +1,338 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from uuid import uuid4
+import logging
+from python_moonutilities import exceptions
+from python_moonutilities.security_functions import filter_input, enforce
+from python_moondb.api.managers import Managers
+import copy
+
+logger = logging.getLogger("moon.db.api.model")
+
+
+class ModelManager(Managers):
+
+    def __init__(self, connector=None):
+        self.driver = connector.driver
+        Managers.ModelManager = self
+
+    @enforce(("read", "write"), "models")
+    def update_model(self, user_id, model_id, value):
+        if model_id not in self.driver.get_models(model_id=model_id):
+            raise exceptions.ModelUnknown
+
+        if not value['name'].strip():
+            raise exceptions.ModelContentError('Model name invalid')
+
+        if 'meta_rules' not in value:
+            raise exceptions.MetaRuleUnknown
+
+        if not value['name']:
+            raise exceptions.ModelContentError
+
+        model = self.get_models(user_id=user_id, model_id=model_id)
+        model = model[next(iter(model))]
+        if ((model['meta_rules'] and value['meta_rules'] and model['meta_rules'] != value[
+            'meta_rules']) \
+                or (model['meta_rules'] and not value['meta_rules'])):
+            policies = Managers.PolicyManager.get_policies(user_id=user_id)
+            for policy_id in policies:
+                if policies[policy_id]["model_id"] == model_id:
+                    raise exceptions.DeleteModelWithPolicy
+
+        if value and 'meta_rules' in value:
+            for meta_rule_id in value['meta_rules']:
+                if not self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
+                    raise exceptions.MetaRuleUnknown
+
+        return self.driver.update_model(model_id=model_id, value=value)
+
+    @enforce(("read", "write"), "models")
+    def delete_model(self, user_id, model_id):
+        if model_id not in self.driver.get_models(model_id=model_id):
+            raise exceptions.ModelUnknown
+        # TODO (asteroide): check that no policy is connected to this model
+        policies = Managers.PolicyManager.get_policies(user_id=user_id)
+        for policy in policies:
+            if policies[policy]['model_id'] == model_id:
+                raise exceptions.DeleteModelWithPolicy
+        return self.driver.delete_model(model_id=model_id)
+
+    @enforce(("read", "write"), "models")
+    def add_model(self, user_id, model_id=None, value=None):
+
+        if not value['name']:
+            raise exceptions.ModelContentError
+
+        if not value['name'].strip():
+            raise exceptions.ModelContentError('Model name invalid')
+
+        models = self.driver.get_models()
+        if model_id in models:
+            raise exceptions.ModelExisting
+
+        for model in models:
+            if models[model]['name'] == value['name']:
+                raise exceptions.ModelExisting("Model Name Existed")
+            same_meta_rule_counter = 0
+            for meta_rule_id in models[model]['meta_rules']:
+                if meta_rule_id in value['meta_rules']:
+                    same_meta_rule_counter += 1
+            if same_meta_rule_counter == len(value['meta_rules']) and \
+                    len(models[model]['meta_rules']) == len(value['meta_rules']):
+                raise exceptions.ModelExisting("Meta Rules List Existed in another Model")
+
+        if not model_id:
+            model_id = uuid4().hex
+        if value and 'meta_rules' in value:
+            for meta_rule_id in value['meta_rules']:
+                if not meta_rule_id:
+                    raise exceptions.MetaRuleUnknown
+                meta_rule = self.driver.get_meta_rules(meta_rule_id=meta_rule_id)
+                if not meta_rule:
+                    raise exceptions.MetaRuleUnknown
+
+                meta_rule_content = meta_rule[next(iter(meta_rule))]
+                if (not meta_rule_content['subject_categories']) or (
+                        not meta_rule_content['object_categories']) or (
+                        not meta_rule_content['action_categories']):
+                    raise exceptions.MetaRuleContentError
+
+        return self.driver.add_model(model_id=model_id, value=value)
+
+    @enforce("read", "models")
+    def get_models(self, user_id, model_id=None):
+        return self.driver.get_models(model_id=model_id)
+
+    @enforce(("read", "write"), "meta_rules")
+    def update_meta_rule(self, user_id, meta_rule_id, value):
+        meta_rules=self.driver.get_meta_rules()
+        if not meta_rule_id or meta_rule_id not in meta_rules:
+            raise exceptions.MetaRuleUnknown
+        self.__check_meta_rule_dependencies(user_id=user_id, meta_rule_id=meta_rule_id)
+        if value:
+            if 'subject_categories' in value:
+                for subject_category_id in value['subject_categories']:
+                    if not subject_category_id or not self.driver.get_subject_categories(
+                            category_id=subject_category_id):
+                        raise exceptions.SubjectCategoryUnknown
+            if 'object_categories' in value:
+                for object_category_id in value['object_categories']:
+                    if not object_category_id or not self.driver.get_object_categories(
+                            category_id=object_category_id):
+                        raise exceptions.ObjectCategoryUnknown
+            if 'action_categories' in value:
+                for action_category_id in value['action_categories']:
+                    if not action_category_id or not self.driver.get_action_categories(
+                            category_id=action_category_id):
+                        raise exceptions.ActionCategoryUnknown
+
+        for meta_rule_obj_id in meta_rules:
+            counter_matched_list = 0
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['subject_categories'],
+                                                           value['subject_categories'])
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['object_categories'],
+                                                           value['object_categories'])
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['action_categories'],
+                                                           value['action_categories'])
+            if counter_matched_list == 3 and meta_rule_obj_id!=meta_rule_id:
+                raise exceptions.MetaRuleExisting("Same categories combination existed")
+
+        return self.driver.set_meta_rule(meta_rule_id=meta_rule_id, value=value)
+
+    def __check_meta_rule_dependencies(self, user_id, meta_rule_id):
+        policies = Managers.PolicyManager.get_policies(user_id=user_id)
+        for policy_id in policies:
+            rules = Managers.PolicyManager.get_rules(user_id=user_id, policy_id=policy_id,
+                                                     meta_rule_id=meta_rule_id)
+            if len(rules['rules']):
+                raise exceptions.MetaRuleUpdateError
+
+    @enforce("read", "meta_rules")
+    def get_meta_rules(self, user_id, meta_rule_id=None):
+        return self.driver.get_meta_rules(meta_rule_id=meta_rule_id)
+
+    @enforce(("read", "write"), "meta_rules")
+    def add_meta_rule(self, user_id, meta_rule_id=None, value=None):
+
+        if not value['name']:
+            raise exceptions.MetaRuleContentError
+
+        meta_rules = self.driver.get_meta_rules()
+
+        if meta_rule_id in meta_rules:
+            raise exceptions.MetaRuleExisting
+
+        if value:
+            if 'subject_categories' in value:
+                for subject_category_id in value['subject_categories']:
+                    if not self.driver.get_subject_categories(category_id=subject_category_id):
+                        raise exceptions.SubjectCategoryUnknown
+            if 'object_categories' in value:
+                for object_category_id in value['object_categories']:
+                    if not self.driver.get_object_categories(category_id=object_category_id):
+                        raise exceptions.ObjectCategoryUnknown
+            if 'action_categories' in value:
+                for action_category_id in value['action_categories']:
+                    if not self.driver.get_action_categories(category_id=action_category_id):
+                        raise exceptions.ActionCategoryUnknown
+
+        for meta_rule_obj_id in meta_rules:
+            counter_matched_list = 0
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['subject_categories'],
+                                                           value['subject_categories'])
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['object_categories'],
+                                                           value['object_categories'])
+            counter_matched_list += self.check_combination(meta_rules[meta_rule_obj_id]['action_categories'],
+                                                           value['action_categories'])
+            if counter_matched_list == 3:
+                raise exceptions.MetaRuleExisting("Same categories combination existed")
+
+        return self.driver.set_meta_rule(meta_rule_id=meta_rule_id, value=value)
+
+    @enforce(("read", "write"), "meta_rules")
+    def check_combination(self, list_one, list_two):
+        counter_removed_items = 0
+        temp_list_two = copy.deepcopy(list_two)
+        for item in list_one:
+            if item in temp_list_two:
+                temp_list_two.remove(item)
+                counter_removed_items += 1
+
+        if counter_removed_items == len(list_two) and len(list_two) == len(list_one) and len(list_two):
+            return 1
+        return 0
+
+    @enforce(("read", "write"), "meta_rules")
+    def delete_meta_rule(self, user_id, meta_rule_id=None):
+        if meta_rule_id not in self.driver.get_meta_rules(meta_rule_id=meta_rule_id):
+            raise exceptions.MetaRuleUnknown
+        # TODO (asteroide): check and/or delete data and assignments and rules linked to that meta_rule
+        models = self.get_models(user_id=user_id)
+        for model_id in models:
+            for id in models[model_id]['meta_rules']:
+                if id == meta_rule_id:
+                    raise exceptions.DeleteMetaRuleWithModel
+        return self.driver.delete_meta_rule(meta_rule_id=meta_rule_id)
+
+    @enforce("read", "meta_data")
+    def get_subject_categories(self, user_id, category_id=None):
+        return self.driver.get_subject_categories(category_id=category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def add_subject_category(self, user_id, category_id=None, value=None):
+        subject_categories = self.driver.get_subject_categories(category_id=category_id)
+
+        if not value['name']:
+            raise exceptions.CategoryNameInvalid
+
+        if category_id in subject_categories:
+            raise exceptions.SubjectCategoryExisting
+
+        return self.driver.add_subject_category(name=value["name"],
+                                                description=value["description"], uuid=category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def delete_subject_category(self, user_id, category_id):
+        # TODO (asteroide): delete all data linked to that category
+        # TODO (asteroide): delete all meta_rules linked to that category
+        if category_id not in self.driver.get_subject_categories(category_id=category_id):
+            raise exceptions.SubjectCategoryUnknown
+        meta_rules = self.get_meta_rules(user_id=user_id)
+        for meta_rule_id in meta_rules:
+            for subject_category_id in meta_rules[meta_rule_id]['subject_categories']:
+                logger.info(
+                    "delete_subject_category {} {}".format(subject_category_id, meta_rule_id))
+                logger.info("delete_subject_category {}".format(meta_rules[meta_rule_id]))
+                if subject_category_id == category_id:
+                    # has_rules = self.driver.is_meta_rule_has_rules(meta_rule_id)
+                    # if has_rules:
+                    raise exceptions.DeleteSubjectCategoryWithMetaRule
+
+        if self.driver.is_subject_category_has_assignment(category_id):
+            raise exceptions.DeleteCategoryWithAssignment
+
+        if self.driver.is_subject_data_exist(category_id=category_id):
+            raise exceptions.DeleteCategoryWithData
+
+        return self.driver.delete_subject_category(category_id=category_id)
+
+    @enforce("read", "meta_data")
+    def get_object_categories(self, user_id, category_id=None):
+        return self.driver.get_object_categories(category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def add_object_category(self, user_id, category_id=None, value=None):
+        if not value['name']:
+            raise exceptions.CategoryNameInvalid
+
+        object_categories = self.driver.get_object_categories(category_id=category_id)
+        if category_id in object_categories:
+            raise exceptions.ObjectCategoryExisting
+
+        return self.driver.add_object_category(name=value["name"], description=value["description"],
+                                               uuid=category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def delete_object_category(self, user_id, category_id):
+        # TODO (asteroide): delete all data linked to that category
+        # TODO (asteroide): delete all meta_rules linked to that category
+        if category_id not in self.driver.get_object_categories(category_id=category_id):
+            raise exceptions.ObjectCategoryUnknown
+        meta_rules = self.get_meta_rules(user_id=user_id)
+        for meta_rule_id in meta_rules:
+            for object_category_id in meta_rules[meta_rule_id]['object_categories']:
+                if object_category_id == category_id:
+                    # has_rules = self.driver.is_meta_rule_has_rules(meta_rule_id)
+                    # if has_rules:
+                    raise exceptions.DeleteObjectCategoryWithMetaRule
+
+        if self.driver.is_object_category_has_assignment(category_id):
+            raise exceptions.DeleteCategoryWithAssignment
+
+        if self.driver.is_object_data_exist(category_id=category_id):
+            raise exceptions.DeleteCategoryWithData
+
+        return self.driver.delete_object_category(category_id=category_id)
+
+    @enforce("read", "meta_data")
+    def get_action_categories(self, user_id, category_id=None):
+        return self.driver.get_action_categories(category_id=category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def add_action_category(self, user_id, category_id=None, value=None):
+
+        if not value['name']:
+            raise exceptions.CategoryNameInvalid
+
+        action_categories = self.driver.get_action_categories(category_id=category_id)
+        if category_id in action_categories:
+            raise exceptions.ActionCategoryExisting
+
+        return self.driver.add_action_category(name=value["name"], description=value["description"],
+                                               uuid=category_id)
+
+    @enforce(("read", "write"), "meta_data")
+    def delete_action_category(self, user_id, category_id):
+        # TODO (asteroide): delete all data linked to that category
+        # TODO (asteroide): delete all meta_rules linked to that category
+        if category_id not in self.driver.get_action_categories(category_id=category_id):
+            raise exceptions.ActionCategoryUnknown
+        meta_rules = self.get_meta_rules(user_id=user_id)
+        for meta_rule_id in meta_rules:
+            for action_category_id in meta_rules[meta_rule_id]['action_categories']:
+                if action_category_id == category_id:
+                    # has_rules = self.driver.is_meta_rule_has_rules(meta_rule_id)
+                    # if has_rules:
+                    raise exceptions.DeleteActionCategoryWithMetaRule
+
+        if self.driver.is_action_category_has_assignment(category_id):
+            raise exceptions.DeleteCategoryWithAssignment
+
+        if self.driver.is_action_data_exist(category_id=category_id):
+            raise exceptions.DeleteCategoryWithData
+
+        return self.driver.delete_action_category(category_id=category_id)
diff --git a/old/python_moondb/python_moondb/api/pdp.py b/old/python_moondb/python_moondb/api/pdp.py
new file mode 100644
index 00000000..d0a071c9
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/pdp.py
@@ -0,0 +1,51 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from uuid import uuid4
+import logging
+from python_moonutilities.security_functions import enforce
+from python_moondb.api.managers import Managers
+from python_moonutilities import exceptions
+
+logger = logging.getLogger("moon.db.api.pdp")
+
+
+class PDPManager(Managers):
+
+    def __init__(self, connector=None):
+        self.driver = connector.driver
+        Managers.PDPManager = self
+
+    @enforce(("read", "write"), "pdp")
+    def update_pdp(self, user_id, pdp_id, value):
+        if pdp_id not in self.driver.get_pdp(pdp_id=pdp_id):
+            raise exceptions.PdpUnknown
+        if value and 'security_pipeline' in value:
+            for policy_id in value['security_pipeline']:
+                if not Managers.PolicyManager.get_policies(user_id=user_id, policy_id=policy_id):
+                    raise exceptions.PolicyUnknown
+        return self.driver.update_pdp(pdp_id=pdp_id, value=value)
+
+    @enforce(("read", "write"), "pdp")
+    def delete_pdp(self, user_id, pdp_id):
+        if pdp_id not in self.driver.get_pdp(pdp_id=pdp_id):
+            raise exceptions.PdpUnknown
+        return self.driver.delete_pdp(pdp_id=pdp_id)
+
+    @enforce(("read", "write"), "pdp")
+    def add_pdp(self, user_id, pdp_id=None, value=None):
+        if pdp_id in self.driver.get_pdp(pdp_id=pdp_id):
+            raise exceptions.PdpExisting
+        if not pdp_id:
+            pdp_id = uuid4().hex
+        if value and 'security_pipeline' in value:
+            for policy_id in value['security_pipeline']:
+                if not Managers.PolicyManager.get_policies(user_id=user_id, policy_id=policy_id):
+                    raise exceptions.PolicyUnknown
+        return self.driver.add_pdp(pdp_id=pdp_id, value=value)
+
+    @enforce("read", "pdp")
+    def get_pdp(self, user_id, pdp_id=None):
+        return self.driver.get_pdp(pdp_id=pdp_id)
diff --git a/old/python_moondb/python_moondb/api/policy.py b/old/python_moondb/python_moondb/api/policy.py
new file mode 100644
index 00000000..03a93ff5
--- /dev/null
+++ b/old/python_moondb/python_moondb/api/policy.py
@@ -0,0 +1,751 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from uuid import uuid4
+import logging
+from python_moonutilities.security_functions import enforce
+from python_moondb.api.managers import Managers
+from python_moonutilities import exceptions
+
+# from python_moondb.core import PDPManager
+
+logger = logging.getLogger("moon.db.api.policy")
+
+
+class PolicyManager(Managers):
+
+    def __init__(self, connector=None):
+        self.driver = connector.driver
+        Managers.PolicyManager = self
+
+    def get_policy_from_meta_rules(self, user_id, meta_rule_id):
+        policies = self.PolicyManager.get_policies("admin")
+        models = self.ModelManager.get_models("admin")
+        for pdp_key, pdp_value in self.PDPManager.get_pdp(user_id).items():
+            if 'security_pipeline' not in pdp_value:
+                raise exceptions.PdpContentError
+            for policy_id in pdp_value["security_pipeline"]:
+                if not policies or policy_id not in policies:
+                    raise exceptions.PolicyUnknown
+                model_id = policies[policy_id]["model_id"]
+                if not models:
+                    raise exceptions.ModelUnknown
+                if model_id not in models:
+                    raise exceptions.ModelUnknown
+                if meta_rule_id in models[model_id]["meta_rules"]:
+                    return policy_id
+
+    @enforce(("read", "write"), "policies")
+    def update_policy(self, user_id, policy_id, value):
+
+        if not value or not value['name']:
+            raise exceptions.PolicyContentError
+
+        policyList = self.driver.get_policies(policy_id=policy_id)
+        if not policy_id or policy_id not in policyList:
+            raise exceptions.PolicyUnknown
+
+        policies = self.driver.get_policies(policy_name=value['name'])
+        if len(policies) and not (policy_id in policies):
+            raise exceptions.PolicyExisting("Policy name Existed")
+
+        if 'model_id' in value and value['model_id']:
+            if not Managers.ModelManager.get_models(user_id, model_id=value['model_id']):
+                raise exceptions.ModelUnknown
+
+        policy_obj = policyList[policy_id]
+        if (policy_obj["model_id"] and value["model_id"] != policy_obj["model_id"]):
+
+            subjects = self.driver.get_subjects(policy_id=policy_id)
+            if subjects:
+                raise exceptions.PolicyUpdateError("Policy is used in subject")
+            objects = self.driver.get_objects(policy_id=policy_id)
+            if objects:
+                raise exceptions.PolicyUpdateError("Policy is used in object")
+            actions = self.driver.get_actions(policy_id=policy_id)
+            if actions:
+                raise exceptions.PolicyUpdateError("Policy is used in action")
+
+            rules = self.driver.get_rules(policy_id=policy_id)["rules"]
+            if rules:
+                raise exceptions.PolicyUpdateError("Policy is used in rule")
+
+            subject_data = self.get_subject_data(user_id, policy_id=policy_id)
+            if subject_data and subject_data[0]["data"]:
+                raise exceptions.PolicyUpdateError("Policy is used in subject_data")
+            object_data = self.get_object_data(user_id, policy_id=policy_id)
+            if object_data and object_data[0]["data"]:
+                raise exceptions.PolicyUpdateError("Policy is used in object_data")
+            action_data = self.get_action_data(user_id, policy_id=policy_id)
+            if action_data and action_data[0]["data"]:
+                raise exceptions.PolicyUpdateError("Policy is used in action_data")
+
+        return self.driver.update_policy(policy_id=policy_id, value=value)
+
+    @enforce(("read", "write"), "policies")
+    def delete_policy(self, user_id, policy_id):
+        # TODO (asteroide): unmap PDP linked to that policy
+        if policy_id not in self.driver.get_policies(policy_id=policy_id):
+            raise exceptions.PolicyUnknown
+        pdps = self.PDPManager.get_pdp(user_id=user_id)
+        for pdp in pdps:
+            for policy_id in pdps[pdp]['security_pipeline']:
+                if policy_id == policy_id:
+                    raise exceptions.DeletePolicyWithPdp
+        subjects = self.driver.get_subjects(policy_id=policy_id)
+        if subjects:
+            raise exceptions.DeletePolicyWithPerimeter
+        objects = self.driver.get_objects(policy_id=policy_id)
+        if objects:
+            raise exceptions.DeletePolicyWithPerimeter
+        actions = self.driver.get_actions(policy_id=policy_id)
+        if actions:
+            raise exceptions.DeletePolicyWithPerimeter
+
+        rules = self.driver.get_rules(policy_id=policy_id)["rules"]
+        if rules:
+            raise exceptions.DeletePolicyWithRules
+
+        subject_data = self.get_subject_data(user_id, policy_id=policy_id)
+        if subject_data and subject_data[0]["data"]:
+            raise exceptions.DeletePolicyWithData
+        object_data = self.get_object_data(user_id, policy_id=policy_id)
+        if object_data and object_data[0]["data"]:
+            raise exceptions.DeletePolicyWithData
+        action_data = self.get_action_data(user_id, policy_id=policy_id)
+        if action_data and action_data[0]["data"]:
+            raise exceptions.DeletePolicyWithData
+
+        return self.driver.delete_policy(policy_id=policy_id)
+
+    @enforce(("read", "write"), "policies")
+    def add_policy(self, user_id, policy_id=None, value=None):
+
+        if not value or not value['name']:
+            raise exceptions.PolicyContentError
+        if policy_id in self.driver.get_policies(policy_id=policy_id):
+            raise exceptions.PolicyExisting
+
+        if len(self.driver.get_policies(policy_name=value['name'])):
+            raise exceptions.PolicyExisting("Policy name Existed")
+
+        if not policy_id:
+            policy_id = uuid4().hex
+        if 'model_id' in value and value['model_id'] != "":
+            if not Managers.ModelManager.get_models(user_id, model_id=value['model_id']):
+                raise exceptions.ModelUnknown
+        return self.driver.add_policy(policy_id=policy_id, value=value)
+
+    @enforce("read", "policies")
+    def get_policies(self, user_id, policy_id=None):
+        return self.driver.get_policies(policy_id=policy_id)
+
+    @enforce("read", "perimeter")
+    def get_subjects(self, user_id, policy_id, perimeter_id=None):
+        # if not policy_id:
+        #    raise exceptions.PolicyUnknown
+        if policy_id and (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+        return self.driver.get_subjects(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce(("read", "write"), "perimeter")
+    def add_subject(self, user_id, policy_id, perimeter_id=None, value=None):
+
+        if not value or "name" not in value or not value["name"].strip():
+            raise exceptions.PerimeterContentError('invalid name')
+
+        if not policy_id or (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+
+        if perimeter_id:
+            subjects = self.driver.get_subjects(policy_id=None, perimeter_id=perimeter_id)
+            if subjects and subjects[perimeter_id]['name'] != value['name']:
+                raise exceptions.PerimeterContentError
+
+        if not perimeter_id:
+            subject_per = self.driver.get_subject_by_name(value['name'])
+            if len(subject_per):
+                perimeter_id = next(iter(subject_per))
+
+        k_user = Managers.KeystoneManager.get_user_by_name(value.get('name'))
+        if not k_user['users']:
+            k_user = Managers.KeystoneManager.create_user(value)
+        if not perimeter_id:
+            try:
+                logger.info("k_user={}".format(k_user))
+                perimeter_id = k_user['users'][0].get('id', uuid4().hex)
+            except IndexError:
+                k_user = Managers.KeystoneManager.get_user_by_name(
+                    value.get('name'))
+                perimeter_id = uuid4().hex
+            except KeyError:
+                k_user = Managers.KeystoneManager.get_user_by_name(
+                    value.get('name'))
+                perimeter_id = uuid4().hex
+
+        value.update(k_user['users'][0])
+
+        return self.driver.set_subject(policy_id=policy_id, perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def update_subject(self, user_id, perimeter_id, value):
+        logger.debug("update_subject perimeter_id = {}".format(perimeter_id))
+
+        if not perimeter_id:
+            raise exceptions.SubjectUnknown
+
+        subjects = self.driver.get_subjects(policy_id=None, perimeter_id=perimeter_id)
+        if not subjects or not (perimeter_id in subjects):
+            raise exceptions.PerimeterContentError
+
+        if 'policy_list' in value or ('name' in value and not value['name']):
+            raise exceptions.PerimeterContentError
+
+        return self.driver.update_subject(perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def delete_subject(self, user_id, policy_id, perimeter_id):
+
+        if not perimeter_id:
+            raise exceptions.SubjectUnknown
+
+        if not policy_id:
+            raise exceptions.PolicyUnknown
+
+        if not self.get_subjects(user_id=user_id, policy_id=policy_id, perimeter_id=perimeter_id):
+            raise exceptions.SubjectUnknown
+
+        if not self.get_policies(user_id=user_id, policy_id=policy_id):
+            raise exceptions.PolicyUnknown
+
+        subj_assig = self.driver.get_subject_assignments(policy_id=policy_id,
+                                                         subject_id=perimeter_id)
+        if subj_assig:
+            raise exceptions.DeletePerimeterWithAssignment
+
+        return self.driver.delete_subject(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce("read", "perimeter")
+    def get_objects(self, user_id, policy_id, perimeter_id=None):
+        # if not policy_id:
+        #     pass
+        if policy_id and (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+        return self.driver.get_objects(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce(("read", "write"), "perimeter")
+    def add_object(self, user_id, policy_id, perimeter_id=None, value=None):
+        if not value or "name" not in value or not value["name"].strip():
+            raise exceptions.PerimeterContentError('invalid name')
+
+        if not policy_id or (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+
+        if perimeter_id:
+            object_perimeter = self.driver.get_objects(policy_id=None, perimeter_id=perimeter_id)
+            if not object_perimeter:
+                raise exceptions.PerimeterContentError
+
+        if not perimeter_id:
+            object_perimeter = self.driver.get_object_by_name(value['name'])
+            if len(object_perimeter):
+                perimeter_id = next(iter(object_perimeter))
+
+        if perimeter_id and object_perimeter[perimeter_id]['name'] != value['name']:
+            raise exceptions.PerimeterContentError
+
+        if not perimeter_id:
+            perimeter_id = uuid4().hex
+        return self.driver.set_object(policy_id=policy_id, perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def update_object(self, user_id, perimeter_id, value):
+        logger.debug("update_object perimeter_id = {}".format(perimeter_id))
+
+        if not perimeter_id:
+            raise exceptions.ObjectUnknown
+
+        objects = self.driver.get_objects(policy_id=None, perimeter_id=perimeter_id)
+        if not objects or not (perimeter_id in objects):
+            raise exceptions.PerimeterContentError
+
+        if 'policy_list' in value or ('name' in value and not value['name']):
+            raise exceptions.PerimeterContentError
+
+        return self.driver.update_object(perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def delete_object(self, user_id, policy_id, perimeter_id):
+
+        if not perimeter_id:
+            raise exceptions.ObjectUnknown
+
+        if not policy_id:
+            raise exceptions.PolicyUnknown
+
+        if not self.get_objects(user_id=user_id, policy_id=policy_id, perimeter_id=perimeter_id):
+            raise exceptions.ObjectUnknown
+
+        if not self.get_policies(user_id=user_id, policy_id=policy_id):
+            raise exceptions.PolicyUnknown
+
+        obj_assig = self.driver.get_object_assignments(policy_id=policy_id, object_id=perimeter_id)
+        if obj_assig:
+            raise exceptions.DeletePerimeterWithAssignment
+
+        return self.driver.delete_object(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce("read", "perimeter")
+    def get_actions(self, user_id, policy_id, perimeter_id=None):
+        # if not policy_id:
+        #     pass
+        if policy_id and (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+        return self.driver.get_actions(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce(("read", "write"), "perimeter")
+    def add_action(self, user_id, policy_id, perimeter_id=None, value=None):
+        logger.debug("add_action {}".format(policy_id))
+
+        if not value or "name" not in value or not value["name"].strip():
+            raise exceptions.PerimeterContentError('invalid name')
+
+        if not policy_id or (not self.get_policies(user_id=user_id, policy_id=policy_id)):
+            raise exceptions.PolicyUnknown
+
+        if perimeter_id:
+            action_perimeter = self.driver.get_actions(policy_id=None, perimeter_id=perimeter_id)
+            if not action_perimeter:
+                raise exceptions.PerimeterContentError
+
+        if not perimeter_id:
+            action_perimeter = self.driver.get_action_by_name(value['name'])
+            if len(action_perimeter):
+                perimeter_id = next(iter(action_perimeter))
+
+        if perimeter_id and action_perimeter[perimeter_id]['name'] != value['name']:
+            raise exceptions.PerimeterContentError
+
+        if not perimeter_id:
+            perimeter_id = uuid4().hex
+
+        return self.driver.set_action(policy_id=policy_id, perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def update_action(self, user_id, perimeter_id, value):
+        logger.debug("update_action perimeter_id = {}".format(perimeter_id))
+
+        if not perimeter_id:
+            raise exceptions.ActionUnknown
+
+        actions = self.driver.get_actions(policy_id=None, perimeter_id=perimeter_id)
+        if not actions or not (perimeter_id in actions):
+            raise exceptions.PerimeterContentError
+
+        if 'policy_list' in value or ('name' in value and not value['name']):
+            raise exceptions.PerimeterContentError
+
+        return self.driver.update_action(perimeter_id=perimeter_id, value=value)
+
+    @enforce(("read", "write"), "perimeter")
+    def delete_action(self, user_id, policy_id, perimeter_id):
+
+        if not perimeter_id:
+            raise exceptions.ActionUnknown
+
+        if not policy_id:
+            raise exceptions.PolicyUnknown
+
+        if not self.get_actions(user_id=user_id, policy_id=policy_id, perimeter_id=perimeter_id):
+            raise exceptions.ActionUnknown
+
+        logger.debug("delete_action {} {} {}".format(policy_id, perimeter_id,
+                                                     self.get_policies(user_id=user_id,
+                                                                       policy_id=policy_id)))
+        if not self.get_policies(user_id=user_id, policy_id=policy_id):
+            raise exceptions.PolicyUnknown
+
+        act_assig = self.driver.get_action_assignments(policy_id=policy_id, action_id=perimeter_id)
+        if act_assig:
+            raise exceptions.DeletePerimeterWithAssignment
+        return self.driver.delete_action(policy_id=policy_id, perimeter_id=perimeter_id)
+
+    @enforce("read", "data")
+    def get_subject_data(self, user_id, policy_id, data_id=None, category_id=None):
+        available_metadata = self.get_available_metadata(user_id, policy_id)
+        results = []
+        if not category_id:
+            for cat in available_metadata["subject"]:
+                results.append(self.driver.get_subject_data(policy_id=policy_id, data_id=data_id,
+                                                            category_id=cat))
+        if category_id and category_id in available_metadata["subject"]:
+            results.append(self.driver.get_subject_data(policy_id=policy_id, data_id=data_id,
+                                                        category_id=category_id))
+        return results
+
+    @enforce(("read", "write"), "data")
+    def set_subject_data(self, user_id, policy_id, data_id=None, category_id=None, value=None):
+        if not category_id or (
+                not Managers.ModelManager.get_subject_categories(user_id=user_id,
+                                                                 category_id=category_id)):
+            raise exceptions.SubjectCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'subject_categories')
+
+        if not data_id:
+            data_id = uuid4().hex
+        return self.driver.set_subject_data(policy_id=policy_id, data_id=data_id,
+                                            category_id=category_id, value=value)
+
+    @enforce(("read", "write"), "data")
+    def delete_subject_data(self, user_id, policy_id, data_id, category_id=None):
+        # TODO (asteroide): check and/or delete assignments linked to that data
+        subject_assignments = self.get_subject_assignments(user_id=user_id, policy_id=policy_id,
+                                                           category_id=category_id)
+        if subject_assignments:
+            raise exceptions.DeleteData
+        return self.driver.delete_subject_data(policy_id=policy_id, category_id=category_id,
+                                               data_id=data_id)
+
+    @enforce("read", "data")
+    def get_object_data(self, user_id, policy_id, data_id=None, category_id=None):
+        available_metadata = self.get_available_metadata(user_id, policy_id)
+        results = []
+        if not category_id:
+            for cat in available_metadata["object"]:
+                results.append(self.driver.get_object_data(policy_id=policy_id, data_id=data_id,
+                                                           category_id=cat))
+        if category_id and category_id in available_metadata["object"]:
+            results.append(self.driver.get_object_data(policy_id=policy_id, data_id=data_id,
+                                                       category_id=category_id))
+        return results
+
+    @enforce(("read", "write"), "data")
+    def add_object_data(self, user_id, policy_id, data_id=None, category_id=None, value=None):
+
+        if not category_id or (
+                not Managers.ModelManager.get_object_categories(user_id=user_id,
+                                                                category_id=category_id)):
+            raise exceptions.ObjectCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'object_categories')
+
+        if not data_id:
+            data_id = uuid4().hex
+        return self.driver.set_object_data(policy_id=policy_id, data_id=data_id,
+                                           category_id=category_id, value=value)
+
+    @enforce(("read", "write"), "data")
+    def delete_object_data(self, user_id, policy_id, data_id, category_id=None):
+        # TODO (asteroide): check and/or delete assignments linked to that data
+        object_assignments = self.get_object_assignments(user_id=user_id, policy_id=policy_id,
+                                                         category_id=category_id)
+        if object_assignments:
+            raise exceptions.DeleteData
+        return self.driver.delete_object_data(policy_id=policy_id, category_id=category_id,
+                                              data_id=data_id)
+
+    @enforce("read", "data")
+    def get_action_data(self, user_id, policy_id, data_id=None, category_id=None):
+        available_metadata = self.get_available_metadata(user_id, policy_id)
+        results = []
+        if not category_id:
+            for cat in available_metadata["action"]:
+                results.append(self.driver.get_action_data(policy_id=policy_id, data_id=data_id,
+                                                           category_id=cat))
+        if category_id and category_id in available_metadata["action"]:
+            results.append(self.driver.get_action_data(policy_id=policy_id, data_id=data_id,
+                                                       category_id=category_id))
+        return results
+
+    @enforce(("read", "write"), "data")
+    def add_action_data(self, user_id, policy_id, data_id=None, category_id=None, value=None):
+        if not category_id or (
+                not Managers.ModelManager.get_action_categories(user_id=user_id,
+                                                                category_id=category_id)):
+            raise exceptions.ActionCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'action_categories')
+
+        if not data_id:
+            data_id = uuid4().hex
+        return self.driver.set_action_data(policy_id=policy_id, data_id=data_id,
+                                           category_id=category_id, value=value)
+
+    @enforce(("read", "write"), "data")
+    def delete_action_data(self, user_id, policy_id, data_id, category_id=None):
+        # TODO (asteroide): check and/or delete assignments linked to that data
+        action_assignments = self.get_action_assignments(user_id=user_id, policy_id=policy_id,
+                                                         category_id=category_id)
+        if action_assignments:
+            raise exceptions.DeleteData
+        return self.driver.delete_action_data(policy_id=policy_id, category_id=category_id,
+                                              data_id=data_id)
+
+    @enforce("read", "assignments")
+    def get_subject_assignments(self, user_id, policy_id, subject_id=None, category_id=None):
+        return self.driver.get_subject_assignments(policy_id=policy_id, subject_id=subject_id,
+                                                   category_id=category_id)
+
+    @enforce(("read", "write"), "assignments")
+    def add_subject_assignment(self, user_id, policy_id, subject_id, category_id, data_id):
+
+        if not category_id or (
+                not Managers.ModelManager.get_subject_categories(user_id=user_id,
+                                                                 category_id=category_id)):
+            raise exceptions.SubjectCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'subject_categories')
+
+        if not subject_id or (
+                not self.get_subjects(user_id=user_id, policy_id=policy_id,
+                                      perimeter_id=subject_id)):
+            raise exceptions.SubjectUnknown
+
+        if not data_id or (
+                not self.get_subject_data(user_id=user_id, policy_id=policy_id, data_id=data_id,
+                                          category_id=category_id)):
+            raise exceptions.DataUnknown
+
+        return self.driver.add_subject_assignment(policy_id=policy_id, subject_id=subject_id,
+                                                  category_id=category_id, data_id=data_id)
+
+    @enforce(("read", "write"), "assignments")
+    def delete_subject_assignment(self, user_id, policy_id, subject_id, category_id, data_id):
+        return self.driver.delete_subject_assignment(policy_id=policy_id, subject_id=subject_id,
+                                                     category_id=category_id, data_id=data_id)
+
+    @enforce("read", "assignments")
+    def get_object_assignments(self, user_id, policy_id, object_id=None, category_id=None):
+        return self.driver.get_object_assignments(policy_id=policy_id, object_id=object_id,
+                                                  category_id=category_id)
+
+    @enforce(("read", "write"), "assignments")
+    def add_object_assignment(self, user_id, policy_id, object_id, category_id, data_id):
+
+        if not category_id or (
+                not Managers.ModelManager.get_object_categories(user_id=user_id,
+                                                                category_id=category_id)):
+            raise exceptions.ObjectCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'object_categories')
+
+        if not object_id or (
+                not self.get_objects(user_id=user_id, policy_id=policy_id, perimeter_id=object_id)):
+            raise exceptions.ObjectUnknown
+
+        if not data_id or (
+                not self.get_object_data(user_id=user_id, policy_id=policy_id, data_id=data_id,
+                                         category_id=category_id)):
+            raise exceptions.DataUnknown
+
+        return self.driver.add_object_assignment(policy_id=policy_id, object_id=object_id,
+                                                 category_id=category_id, data_id=data_id)
+
+    @enforce(("read", "write"), "assignments")
+    def delete_object_assignment(self, user_id, policy_id, object_id, category_id, data_id):
+        return self.driver.delete_object_assignment(policy_id=policy_id, object_id=object_id,
+                                                    category_id=category_id, data_id=data_id)
+
+    @enforce("read", "assignments")
+    def get_action_assignments(self, user_id, policy_id, action_id=None, category_id=None):
+        return self.driver.get_action_assignments(policy_id=policy_id, action_id=action_id,
+                                                  category_id=category_id)
+
+    @enforce(("read", "write"), "assignments")
+    def add_action_assignment(self, user_id, policy_id, action_id, category_id, data_id):
+
+        if not category_id or (
+                not Managers.ModelManager.get_action_categories(user_id=user_id,
+                                                                category_id=category_id)):
+            raise exceptions.ActionCategoryUnknown
+
+        self.__category_dependency_validation(user_id, policy_id, category_id, 'action_categories')
+
+        if not action_id or (
+                not self.get_actions(user_id=user_id, policy_id=policy_id, perimeter_id=action_id)):
+            raise exceptions.ActionUnknown
+
+        if not data_id or (
+                not self.get_action_data(user_id=user_id, policy_id=policy_id, data_id=data_id,
+                                         category_id=category_id)):
+            raise exceptions.DataUnknown
+
+        return self.driver.add_action_assignment(policy_id=policy_id, action_id=action_id,
+                                                 category_id=category_id, data_id=data_id)
+
+    @enforce(("read", "write"), "assignments")
+    def delete_action_assignment(self, user_id, policy_id, action_id, category_id, data_id):
+        return self.driver.delete_action_assignment(policy_id=policy_id, action_id=action_id,
+                                                    category_id=category_id, data_id=data_id)
+
+    @enforce("read", "rules")
+    def get_rules(self, user_id, policy_id, meta_rule_id=None, rule_id=None):
+        return self.driver.get_rules(policy_id=policy_id, meta_rule_id=meta_rule_id,
+                                     rule_id=rule_id)
+
+    @enforce(("read", "write"), "rules")
+    def add_rule(self, user_id, policy_id, meta_rule_id, value):
+        if not meta_rule_id or (
+                not self.ModelManager.get_meta_rules(user_id=user_id, meta_rule_id=meta_rule_id)):
+            raise exceptions.MetaRuleUnknown
+
+        self.__check_existing_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, user_id=user_id,
+                                   rule_value=value)
+        self.__dependencies_validation(user_id, policy_id, meta_rule_id)
+
+        return self.driver.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+
+    def __check_existing_rule(self, user_id, policy_id, meta_rule_id, rule_value):
+
+        if not meta_rule_id:
+            raise exceptions.MetaRuleUnknown
+
+        meta_rule = self.ModelManager.get_meta_rules(user_id=user_id, meta_rule_id=meta_rule_id)
+        if not meta_rule:
+            raise exceptions.MetaRuleUnknown
+
+        if len(meta_rule[meta_rule_id]['subject_categories']) + len(
+                meta_rule[meta_rule_id]['object_categories']) \
+                + len(meta_rule[meta_rule_id]['action_categories']) > len(rule_value['rule']):
+            raise exceptions.RuleContentError(message="Missing Data")
+
+        if len(meta_rule[meta_rule_id]['subject_categories']) + len(
+                meta_rule[meta_rule_id]['object_categories']) \
+                + len(meta_rule[meta_rule_id]['action_categories']) < len(rule_value['rule']):
+            raise exceptions.MetaRuleContentError(message="Missing Data")
+
+        temp_rule_data = list(
+            rule_value['rule'][0:len(meta_rule[meta_rule_id]['subject_categories'])])
+        found_data_counter = 0
+        start_sub = len(meta_rule[meta_rule_id]['subject_categories'])
+
+        for sub_cat_id in meta_rule[meta_rule_id]['subject_categories']:
+            subjects_data = self.get_subject_data(user_id=user_id,
+                                                  category_id=sub_cat_id, policy_id=policy_id)
+            found_data_counter = self.__validate_data_id(sub_cat_id, subjects_data[0]['data'],
+                                                         temp_rule_data,
+                                                         "Missing Subject_category "
+                                                         , found_data_counter)
+
+        if found_data_counter != len(meta_rule[meta_rule_id]['subject_categories']):
+            raise exceptions.RuleContentError(message="Missing Data")
+
+        temp_rule_data = list(
+            rule_value['rule'][
+            start_sub:start_sub + len(meta_rule[meta_rule_id]['object_categories'])])
+        found_data_counter = 0
+        start_sub = start_sub + len(meta_rule[meta_rule_id]['object_categories'])
+
+        for ob_cat_id in meta_rule[meta_rule_id]['object_categories']:
+            object_data = self.get_object_data(user_id=user_id,
+                                               category_id=ob_cat_id, policy_id=policy_id)
+
+            found_data_counter = self.__validate_data_id(ob_cat_id, object_data[0]['data'],
+                                                         temp_rule_data,
+                                                         "Missing Object_category ",
+                                                         found_data_counter)
+
+        if found_data_counter != len(meta_rule[meta_rule_id]['object_categories']):
+            raise exceptions.RuleContentError(message="Missing Data")
+
+        temp_rule_data = list(
+            rule_value['rule'][
+            start_sub:start_sub + len(meta_rule[meta_rule_id]['action_categories'])])
+        found_data_counter = 0
+
+        for act_cat_id in meta_rule[meta_rule_id]['action_categories']:
+            action_data = self.get_action_data(user_id=user_id, category_id=act_cat_id,
+                                               policy_id=policy_id)
+            found_data_counter = self.__validate_data_id(act_cat_id, action_data[0]['data'],
+                                                         temp_rule_data,
+                                                         "Missing Action_category ",
+                                                         found_data_counter)
+
+        if found_data_counter != len(meta_rule[meta_rule_id]['action_categories']):
+            raise exceptions.RuleContentError(message="Missing Data")
+
+    def __validate_data_id(self, cat_id, data_ids, temp_rule_data, error_msg, found_data_counter):
+        for ID in data_ids:
+            if ID in temp_rule_data:
+                temp_rule_data.remove(ID)
+                found_data_counter += 1
+        # if no data id found in the rule, so rule not valid
+        if found_data_counter < 1:
+            raise exceptions.RuleContentError(message=error_msg + cat_id)
+        return found_data_counter
+
+    @enforce(("read", "write"), "rules")
+    def delete_rule(self, user_id, policy_id, rule_id):
+        return self.driver.delete_rule(policy_id=policy_id, rule_id=rule_id)
+
+    @enforce("read", "meta_data")
+    def get_available_metadata(self, user_id, policy_id):
+        categories = {
+            "subject": [],
+            "object": [],
+            "action": []
+        }
+        policy = self.driver.get_policies(policy_id=policy_id)
+        if not policy:
+            raise exceptions.PolicyUnknown
+        model_id = policy[policy_id]["model_id"]
+        model = Managers.ModelManager.get_models(user_id=user_id, model_id=model_id)
+        try:
+            meta_rule_list = model[model_id]["meta_rules"]
+            for meta_rule_id in meta_rule_list:
+                meta_rule = Managers.ModelManager.get_meta_rules(user_id=user_id,
+                                                                 meta_rule_id=meta_rule_id)
+                categories["subject"].extend(meta_rule[meta_rule_id]["subject_categories"])
+                categories["object"].extend(meta_rule[meta_rule_id]["object_categories"])
+                categories["action"].extend(meta_rule[meta_rule_id]["action_categories"])
+        finally:
+            return categories
+
+    def __dependencies_validation(self, user_id, policy_id, meta_rule_id=None):
+
+        policies = self.get_policies(user_id=user_id, policy_id=policy_id)
+        if not policy_id or (not policies):
+            raise exceptions.PolicyUnknown
+
+        policy_content = policies[next(iter(policies))]
+        model_id = policy_content['model_id']
+        models = Managers.ModelManager.get_models(user_id=user_id, model_id=model_id)
+        if not model_id or not models:
+            raise exceptions.ModelUnknown
+
+        model_content = models[next(iter(models))]
+        if meta_rule_id:
+            meta_rule_exists = False
+
+            for model_meta_rule_id in model_content['meta_rules']:
+                if model_meta_rule_id == meta_rule_id:
+                    meta_rule_exists = True
+                    break
+
+            if not meta_rule_exists:
+                raise exceptions.MetaRuleNotLinkedWithPolicyModel
+
+            meta_rule = self.ModelManager.get_meta_rules(user_id=user_id, meta_rule_id=meta_rule_id)
+            meta_rule_content = meta_rule[next(iter(meta_rule))]
+            if (not meta_rule_content['subject_categories']) or (
+                    not meta_rule_content['object_categories']) or (
+                    not meta_rule_content['action_categories']):
+                raise exceptions.MetaRuleContentError
+        return model_content
+
+    def __category_dependency_validation(self, user_id, policy_id, category_id, category_key):
+        model = self.__dependencies_validation(user_id=user_id, policy_id=policy_id)
+        category_found = False
+        for model_meta_rule_id in model['meta_rules']:
+            meta_rule = self.ModelManager.get_meta_rules(user_id=user_id,
+                                                         meta_rule_id=model_meta_rule_id)
+            meta_rule_content = meta_rule[next(iter(meta_rule))]
+            if meta_rule_content[category_key] and category_id in meta_rule_content[category_key]:
+                category_found = True
+                break
+
+        if not category_found:
+            raise exceptions.CategoryNotAssignedMetaRule
diff --git a/old/python_moondb/python_moondb/backends/__init__.py b/old/python_moondb/python_moondb/backends/__init__.py
new file mode 100644
index 00000000..6f1cd3d5
--- /dev/null
+++ b/old/python_moondb/python_moondb/backends/__init__.py
@@ -0,0 +1,96 @@
+"""
+intra_extensions = {
+    intra_extension_id1: {
+        name: xxx,
+        model: yyy,
+        description: zzz},
+    intra_extension_id2: {...},
+    ...
+}
+
+tenants = {
+    tenant_id1: {
+        name: xxx,
+        description: yyy,
+        intra_authz_extension_id: zzz,
+        intra_admin_extension_id: zzz,
+        },
+    tenant_id2: {...},
+    ...
+}
+
+--------------- for each intra-extension -----------------
+
+subject_categories = {
+    subject_category_id1: {
+        name: xxx,
+        description: yyy},
+    subject_category_id2: {...},
+    ...
+}
+
+subjects = {
+    subject_id1: {
+        name: xxx,
+        description: yyy,
+         ...},
+    subject_id2: {...},
+    ...
+}
+
+subject_scopes = {
+    subject_category_id1: {
+        subject_scope_id1: {
+            name: xxx,
+            description: aaa},
+        subject_scope_id2: {
+            name: yyy,
+            description: bbb},
+        ...},
+        subject_scope_id3: {
+        ...}
+    subject_category_id2: {...},
+    ...
+}
+
+subject_assignments = {
+    subject_id1: {
+        subject_category_id1: [subject_scope_id1, subject_scope_id2, ...],
+        subject_category_id2: [subject_scope_id3, subject_scope_id4, ...],
+        ...
+    },
+    subject_id2: {
+        subject_category_id1: [subject_scope_id1, subject_scope_id2, ...],
+        subject_category_id2: [subject_scope_id3, subject_scope_id4, ...],
+        ...
+    },
+    ...
+}
+
+aggregation_algorithm = {
+    aggregation_algorithm_id: {
+         name: xxx,
+         description: yyy
+         }
+    }
+
+sub_meta_rules = {
+    sub_meta_rule_id_1: {
+        "name": xxx,
+        "algorithm": yyy,
+        "subject_categories": [subject_category_id1, subject_category_id2,...],
+        "object_categories": [object_category_id1, object_category_id2,...],
+        "action_categories": [action_category_id1, action_category_id2,...]
+    sub_meta_rule_id_2: {...},
+    ...
+}
+
+rules = {
+    sub_meta_rule_id1: {
+        rule_id1: [subject_scope1, subject_scope2, ..., action_scope1, ..., object_scope1, ... ],
+        rule_id2: [subject_scope3, subject_scope4, ..., action_scope3, ..., object_scope3, ... ],
+        rule_id3: [thomas, write, admin.subjects]
+        ...},
+    sub_meta_rule_id2: { },
+    ...}
+"""
diff --git a/old/python_moondb/python_moondb/backends/sql.py b/old/python_moondb/python_moondb/backends/sql.py
new file mode 100644
index 00000000..d25586ba
--- /dev/null
+++ b/old/python_moondb/python_moondb/backends/sql.py
@@ -0,0 +1,1884 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import copy
+import json
+from uuid import uuid4
+import sqlalchemy as sql
+import logging
+from sqlalchemy.orm import sessionmaker
+from sqlalchemy.ext.declarative import declarative_base, declared_attr
+from sqlalchemy import create_engine
+from contextlib import contextmanager
+from sqlalchemy import types as sql_types
+from python_moonutilities import configuration
+from python_moonutilities import exceptions
+from python_moondb.core import PDPDriver, PolicyDriver, ModelDriver
+import sqlalchemy
+
+logger = logging.getLogger("moon.db.driver.sql")
+Base = declarative_base()
+DEBUG = True if configuration.get_configuration("logging")['logging']['loggers']['moon'][
+                    'level'] == "DEBUG" else False
+
+
+class DictBase:
+    attributes = []
+
+    @classmethod
+    def from_dict(cls, d):
+        new_d = d.copy()
+        return cls(**new_d)
+        # new_d = d.copy()
+        #
+        # new_d['extra'] = {k: new_d.pop(k) for k in six.iterkeys(d)
+        #                   if k not in cls.attributes and k != 'extra'}
+        #
+        # return cls(**new_d)
+
+    def to_dict(self):
+        d = dict()
+        for attr in self.__class__.attributes:
+            d[attr] = getattr(self, attr)
+        return d
+
+    def __getitem__(self, key):
+        # if "extra" in dir(self) and key in self.extra:
+        #     return self.extra[key]
+        return getattr(self, key)
+
+
+class JsonBlob(sql_types.TypeDecorator):
+    impl = sql.Text
+
+    def process_bind_param(self, value, dialect):
+        return json.dumps(value)
+
+    def process_result_value(self, value, dialect):
+        return json.loads(value)
+
+
+class Model(Base, DictBase):
+    __tablename__ = 'models'
+    attributes = ['id', 'name', 'value']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    value = sql.Column(JsonBlob(), nullable=True)
+
+    def to_dict(self):
+        return {
+            "name": self.name,
+            "description": self.value.get("description", ""),
+            "meta_rules": self.value.get("meta_rules", list()),
+        }
+
+
+class Policy(Base, DictBase):
+    __tablename__ = 'policies'
+    attributes = ['id', 'name', 'model_id', 'value']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    model_id = sql.Column(sql.String(64), nullable=True, default="")
+    value = sql.Column(JsonBlob(), nullable=True)
+
+    def to_dict(self):
+        return {
+            "description": self.value.get("description", ""),
+            "genre": self.value.get("genre", ""),
+            "model_id": self.model_id,
+            "name": self.name
+        }
+
+
+class PDP(Base, DictBase):
+    __tablename__ = 'pdp'
+    attributes = ['id', 'name', 'keystone_project_id', 'value']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    keystone_project_id = sql.Column(sql.String(64), nullable=True, default="")
+    value = sql.Column(JsonBlob(), nullable=True)
+
+    def to_dict(self):
+        return {
+            "name": self.name,
+            "description": self.value.get("description", ""),
+            "keystone_project_id": self.keystone_project_id,
+            "security_pipeline": self.value.get("security_pipeline", []),
+        }
+
+
+class PerimeterCategoryBase(DictBase):
+    attributes = ['id', 'name', 'description']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    description = sql.Column(sql.String(256), nullable=True)
+
+
+class SubjectCategory(Base, PerimeterCategoryBase):
+    __tablename__ = 'subject_categories'
+
+
+class ObjectCategory(Base, PerimeterCategoryBase):
+    __tablename__ = 'object_categories'
+
+
+class ActionCategory(Base, PerimeterCategoryBase):
+    __tablename__ = 'action_categories'
+
+
+class PerimeterBase(DictBase):
+    attributes = ['id', 'name', 'value']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    value = sql.Column(JsonBlob(), nullable=True)
+    __mapper_args__ = {'concrete': True}
+
+    def __repr__(self):
+        return "{} with name {} : {}".format(self.id, self.name, json.dumps(self.value))
+
+    def to_return(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'description': self.value.get("description", ""),
+            'email': self.value.get("email", ""),
+            'extra': self.value.get("extra", dict()),
+            'policy_list': self.value.get("policy_list", [])
+        }
+
+    def to_dict(self):
+        dict_value = copy.deepcopy(self.value)
+        dict_value["name"] = self.name
+        return {
+            'id': self.id,
+            'value': dict_value
+        }
+
+
+class Subject(Base, PerimeterBase):
+    __tablename__ = 'subjects'
+
+
+class Object(Base, PerimeterBase):
+    __tablename__ = 'objects'
+
+
+class Action(Base, PerimeterBase):
+    __tablename__ = 'actions'
+
+
+class PerimeterDataBase(DictBase):
+    attributes = ['id', 'name', 'value', 'category_id', 'policy_id']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    value = sql.Column(JsonBlob(), nullable=True)
+
+    @declared_attr
+    def policy_id(cls):
+        return sql.Column(sql.ForeignKey("policies.id"), nullable=False)
+
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'description': self.value.get("description", ""),
+            'category_id': self.category_id,
+            'policy_id': self.policy_id
+        }
+
+
+class SubjectData(Base, PerimeterDataBase):
+    __tablename__ = 'subject_data'
+    category_id = sql.Column(sql.ForeignKey("subject_categories.id"), nullable=False)
+
+
+class ObjectData(Base, PerimeterDataBase):
+    __tablename__ = 'object_data'
+    category_id = sql.Column(sql.ForeignKey("object_categories.id"), nullable=False)
+
+
+class ActionData(Base, PerimeterDataBase):
+    __tablename__ = 'action_data'
+    category_id = sql.Column(sql.ForeignKey("action_categories.id"), nullable=False)
+
+
+class PerimeterAssignmentBase(DictBase):
+    attributes = ['id', 'assignments', 'policy_id', 'subject_id', 'category_id']
+    id = sql.Column(sql.String(64), primary_key=True)
+    assignments = sql.Column(JsonBlob(), nullable=True)
+    category_id = None
+
+    @declared_attr
+    def policy_id(cls):
+        return sql.Column(sql.ForeignKey("policies.id"), nullable=False)
+
+    def _to_dict(self, element_key, element_value):
+        return {
+            "id": self.id,
+            "policy_id": self.policy_id,
+            element_key: element_value,
+            "category_id": self.category_id,
+            "assignments": self.assignments,
+        }
+
+
+class SubjectAssignment(Base, PerimeterAssignmentBase):
+    __tablename__ = 'subject_assignments'
+    subject_id = sql.Column(sql.ForeignKey("subjects.id"), nullable=False)
+    category_id = sql.Column(sql.ForeignKey("subject_categories.id"), nullable=False)
+
+    def to_dict(self):
+        return self._to_dict("subject_id", self.subject_id)
+
+
+class ObjectAssignment(Base, PerimeterAssignmentBase):
+    __tablename__ = 'object_assignments'
+    attributes = ['id', 'assignments', 'policy_id', 'object_id', 'category_id']
+    object_id = sql.Column(sql.ForeignKey("objects.id"), nullable=False)
+    category_id = sql.Column(sql.ForeignKey("object_categories.id"), nullable=False)
+
+    def to_dict(self):
+        return self._to_dict("object_id", self.object_id)
+
+
+class ActionAssignment(Base, PerimeterAssignmentBase):
+    __tablename__ = 'action_assignments'
+    attributes = ['id', 'assignments', 'policy_id', 'action_id', 'category_id']
+    action_id = sql.Column(sql.ForeignKey("actions.id"), nullable=False)
+    category_id = sql.Column(sql.ForeignKey("action_categories.id"), nullable=False)
+
+    def to_dict(self):
+        return self._to_dict("action_id", self.action_id)
+
+
+class MetaRule(Base, DictBase):
+    __tablename__ = 'meta_rules'
+    attributes = ['id', 'name', 'subject_categories', 'object_categories', 'action_categories',
+                  'value']
+    id = sql.Column(sql.String(64), primary_key=True)
+    name = sql.Column(sql.String(256), nullable=False)
+    subject_categories = sql.Column(JsonBlob(), nullable=True)
+    object_categories = sql.Column(JsonBlob(), nullable=True)
+    action_categories = sql.Column(JsonBlob(), nullable=True)
+    value = sql.Column(JsonBlob(), nullable=True)
+
+    def to_dict(self):
+        return {
+            "name": self.name,
+            "description": self.value.get("description", ""),
+            "subject_categories": self.subject_categories,
+            "object_categories": self.object_categories,
+            "action_categories": self.action_categories,
+        }
+
+
+class Rule(Base, DictBase):
+    __tablename__ = 'rules'
+    attributes = ['id', 'rule', 'policy_id', 'meta_rule_id']
+    id = sql.Column(sql.String(64), primary_key=True)
+    rule = sql.Column(JsonBlob(), nullable=True)
+    policy_id = sql.Column(sql.ForeignKey("policies.id"), nullable=False)
+    meta_rule_id = sql.Column(sql.ForeignKey("meta_rules.id"), nullable=False)
+
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'rule': self.rule["rule"],
+            'instructions': self.rule["instructions"],
+            'enabled': self.rule["enabled"],
+            'policy_id': self.policy_id,
+            'meta_rule_id': self.meta_rule_id
+        }
+
+    def __repr__(self):
+        return "{}".format(self.rule)
+
+
+@contextmanager
+def session_scope(engine):
+    """Provide a transactional scope around a series of operations."""
+    if type(engine) is str:
+        echo = DEBUG
+        engine = create_engine(engine, echo=echo)
+    session = sessionmaker(bind=engine)()
+    try:
+        yield session
+        session.commit()
+    except:
+        session.rollback()
+        raise
+    finally:
+        session.close()
+
+
+class BaseConnector(object):
+    """Provide a base connector to connect them all"""
+    engine = ""
+
+    def __init__(self, engine_name):
+        echo = DEBUG
+        self.engine = create_engine(engine_name, echo=echo)
+
+    def init_db(self):
+        Base.metadata.create_all(self.engine)
+
+    def set_engine(self, engine_name):
+        self.engine = engine_name
+
+    def get_session(self):
+        return session_scope(self.engine)
+
+    def get_session_for_read(self):
+        return self.get_session()
+
+    def get_session_for_write(self):
+        return self.get_session()
+
+
+class PDPConnector(BaseConnector, PDPDriver):
+
+    def update_pdp(self, pdp_id, value):
+        try:
+            with self.get_session_for_write() as session:
+                query = session.query(PDP)
+                query = query.filter_by(id=pdp_id)
+                ref = query.first()
+                if ref:
+                    value_wo_name = copy.deepcopy(value)
+                    value_wo_name.pop("name", None)
+                    value_wo_name.pop("keystone_project_id", None)
+                    ref.name = value["name"]
+                    ref.keystone_project_id = value["keystone_project_id"]
+                    d = dict(ref.value)
+                    d.update(value_wo_name)
+                    setattr(ref, "value", d)
+                return {ref.id: ref.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.PdpExisting
+            raise error
+
+    def delete_pdp(self, pdp_id):
+        with self.get_session_for_write() as session:
+            ref = session.query(PDP).get(pdp_id)
+            session.delete(ref)
+
+    def add_pdp(self, pdp_id=None, value=None):
+        try:
+            with self.get_session_for_write() as session:
+                value_wo_name = copy.deepcopy(value)
+                value_wo_name.pop("name", None)
+                value_wo_name.pop("keystone_project_id", None)
+                new = PDP.from_dict({
+                    "id": pdp_id if pdp_id else uuid4().hex,
+                    "name": value["name"],
+                    "keystone_project_id": value["keystone_project_id"],
+                    "value": value_wo_name
+                })
+                session.add(new)
+                return {new.id: new.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.PdpExisting
+            raise error
+
+    def get_pdp(self, pdp_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(PDP)
+            if pdp_id:
+                query = query.filter_by(id=pdp_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+
+class PolicyConnector(BaseConnector, PolicyDriver):
+
+    def update_policy(self, policy_id, value):
+        try:
+            with self.get_session_for_write() as session:
+                query = session.query(Policy)
+                query = query.filter_by(id=policy_id)
+                ref = query.first()
+
+                if ref:
+                    value_wo_other_info = copy.deepcopy(value)
+                    value_wo_other_info.pop("name", None)
+                    value_wo_other_info.pop("model_id", None)
+                    ref.name = value["name"]
+                    ref.model_id = value["model_id"]
+                    d = dict(ref.value)
+                    d.update(value_wo_other_info)
+                    setattr(ref, "value", d)
+                return {ref.id: ref.to_dict()}
+
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.PolicyExisting
+            raise error
+
+    def delete_policy(self, policy_id):
+        with self.get_session_for_write() as session:
+            ref = session.query(Policy).get(policy_id)
+            session.delete(ref)
+
+    def add_policy(self, policy_id=None, value=None):
+        try:
+            with self.get_session_for_write() as session:
+                value_wo_other_info = copy.deepcopy(value)
+                value_wo_other_info.pop("name", None)
+                value_wo_other_info.pop("model_id", None)
+                new = Policy.from_dict({
+                    "id": policy_id if policy_id else uuid4().hex,
+                    "name": value["name"],
+                    "model_id": value.get("model_id", ""),
+                    "value": value_wo_other_info
+                })
+                session.add(new)
+                return {new.id: new.to_dict()}
+
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.PolicyExisting
+            raise error
+
+    def get_policies(self, policy_id=None, policy_name=None):
+        with self.get_session_for_read() as session:
+            query = session.query(Policy)
+            if policy_id:
+                query = query.filter_by(id=policy_id)
+            elif policy_name:
+                query = query.filter_by(name=policy_name)
+
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def __get_perimeters(self, ClassType, policy_id, perimeter_id=None):
+        # if not policy_id:
+        #     raise exceptions.PolicyUnknown
+
+        with self.get_session_for_read() as session:
+            query = session.query(ClassType)
+
+            if perimeter_id:
+                query = query.filter_by(id=perimeter_id)
+
+            ref_list = copy.deepcopy(query.all())
+
+            if policy_id:
+                results = []
+                for _ref in ref_list:
+                    _ref_value = _ref.to_return()
+                    if policy_id in _ref_value["policy_list"]:
+                        results.append(_ref)
+                return {_ref.id: _ref.to_return() for _ref in results}
+            return {_ref.id: _ref.to_return() for _ref in ref_list}
+
+    def __get_perimeter_by_name(self, ClassType, perimeter_name):
+        # if not policy_id:
+        #     raise exceptions.PolicyUnknown
+        with self.get_session_for_read() as session:
+            query = session.query(ClassType)
+            if not perimeter_name or not perimeter_name.strip():
+                raise exceptions.PerimeterContentError('invalid name')
+            query = query.filter_by(name=perimeter_name)
+            ref_list = copy.deepcopy(query.all())
+            return {_ref.id: _ref.to_return() for _ref in ref_list}
+
+    def __update_perimeter(self, class_type, class_type_exception, perimeter_id, value):
+        if not perimeter_id:
+            return exceptions.PerimeterContentError
+        with self.get_session_for_write() as session:
+            query = session.query(class_type)
+            query = query.filter_by(id=perimeter_id)
+            _perimeter = query.first()
+            if not _perimeter:
+                raise class_type_exception
+            temp_perimeter = copy.deepcopy(_perimeter.to_dict())
+            if 'name' in value:
+                temp_perimeter['value']['name'] = value['name']
+            if 'description' in value:
+                temp_perimeter['value']['description'] = value['description']
+            if 'extra' in value:
+                temp_perimeter['value']['extra'] = value['extra']
+            name = temp_perimeter['value']['name']
+            temp_perimeter['value'].pop("name", None)
+            new_perimeter = class_type.from_dict({
+                "id": temp_perimeter["id"],
+                "name": name,
+                "value": temp_perimeter["value"]
+            })
+            _perimeter.value = new_perimeter.value
+            _perimeter.name = new_perimeter.name
+            return {_perimeter.id: _perimeter.to_return()}
+
+    def __set_perimeter(self, ClassType, ClassTypeException, policy_id, perimeter_id=None,
+                        value=None):
+        if not value or "name" not in value or not value["name"].strip():
+            raise exceptions.PerimeterContentError('invalid name')
+        with self.get_session_for_write() as session:
+            _perimeter = None
+            if perimeter_id:
+                query = session.query(ClassType)
+                query = query.filter_by(id=perimeter_id)
+                _perimeter = query.first()
+            if not perimeter_id and not _perimeter:
+                query = session.query(ClassType)
+                query = query.filter_by(name=value['name'])
+                _perimeter = query.first()
+                if _perimeter:
+                    raise ClassTypeException
+            if not _perimeter:
+                if "policy_list" not in value or type(value["policy_list"]) is not list:
+                    value["policy_list"] = []
+                if policy_id and policy_id not in value["policy_list"]:
+                    value["policy_list"] = [policy_id, ]
+
+                value_wo_name = copy.deepcopy(value)
+                value_wo_name.pop("name", None)
+                new = ClassType.from_dict({
+                    "id": perimeter_id if perimeter_id else uuid4().hex,
+                    "name": value["name"],
+                    "value": value_wo_name
+                })
+                session.add(new)
+                return {new.id: new.to_return()}
+            else:
+                _value = copy.deepcopy(_perimeter.to_dict())
+                if "policy_list" not in _value["value"] or type(
+                        _value["value"]["policy_list"]) is not list:
+                    _value["value"]["policy_list"] = []
+                if policy_id and policy_id not in _value["value"]["policy_list"]:
+                    _value["value"]["policy_list"].append(policy_id)
+                else:
+                    if policy_id:
+                        raise exceptions.PolicyExisting
+                    raise exceptions.PerimeterContentError
+
+                _value["value"].update(value)
+
+                name = _value["value"]["name"]
+                _value["value"].pop("name")
+                new_perimeter = ClassType.from_dict({
+                    "id": _value["id"],
+                    "name": name,
+                    "value": _value["value"]
+                })
+                _perimeter.value = new_perimeter.value
+                _perimeter.name = new_perimeter.name
+                return {_perimeter.id: _perimeter.to_return()}
+
+    def __delete_perimeter(self, ClassType, ClassUnknownException, policy_id, perimeter_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ClassType)
+            query = query.filter_by(id=perimeter_id)
+            _perimeter = query.first()
+            if not _perimeter:
+                raise ClassUnknownException
+            old_perimeter = copy.deepcopy(_perimeter.to_dict())
+            try:
+                old_perimeter["value"]["policy_list"].remove(policy_id)
+                new_perimeter = ClassType.from_dict(old_perimeter)
+                if not new_perimeter.value["policy_list"]:
+                    session.delete(_perimeter)
+                else:
+                    setattr(_perimeter, "value", getattr(new_perimeter, "value"))
+            except ValueError:
+                if not _perimeter.value["policy_list"]:
+                    session.delete(_perimeter)
+
+    def get_subjects(self, policy_id, perimeter_id=None):
+        return self.__get_perimeters(Subject, policy_id, perimeter_id)
+
+    def get_subject_by_name(self, perimeter_name):
+        return self.__get_perimeter_by_name(Subject, perimeter_name)
+
+    def set_subject(self, policy_id, perimeter_id=None, value=None):
+        try:
+            return self.__set_perimeter(Subject, exceptions.SubjectExisting, policy_id,
+                                        perimeter_id=perimeter_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.SubjectExisting
+            raise error
+
+    def update_subject(self, perimeter_id, value):
+        try:
+            return self.__update_perimeter(Subject, exceptions.SubjectExisting, perimeter_id, value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.SubjectExisting
+            raise error
+
+    def delete_subject(self, policy_id, perimeter_id):
+        self.__delete_perimeter(Subject, exceptions.SubjectUnknown, policy_id, perimeter_id)
+
+    def get_objects(self, policy_id, perimeter_id=None):
+        return self.__get_perimeters(Object, policy_id, perimeter_id)
+
+    def get_object_by_name(self, perimeter_name):
+        return self.__get_perimeter_by_name(Object, perimeter_name)
+
+    def set_object(self, policy_id, perimeter_id=None, value=None):
+        try:
+            return self.__set_perimeter(Object, exceptions.ObjectExisting, policy_id,
+                                        perimeter_id=perimeter_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            logger.exception("IntegrityError {}".format(error))
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ObjectExisting
+            raise error
+
+    def update_object(self, perimeter_id, value):
+        try:
+            return self.__update_perimeter(Object, exceptions.ObjectExisting, perimeter_id, value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ObjectExisting
+            raise error
+
+    def delete_object(self, policy_id, perimeter_id):
+        self.__delete_perimeter(Object, exceptions.ObjectUnknown, policy_id, perimeter_id)
+
+    def get_actions(self, policy_id, perimeter_id=None):
+        return self.__get_perimeters(Action, policy_id, perimeter_id)
+
+    def get_action_by_name(self, perimeter_name):
+        return self.__get_perimeter_by_name(Action, perimeter_name)
+
+    def set_action(self, policy_id, perimeter_id=None, value=None):
+        try:
+            return self.__set_perimeter(Action, exceptions.ActionExisting, policy_id,
+                                        perimeter_id=perimeter_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ActionExisting
+            raise error
+
+    def update_action(self, perimeter_id, value):
+        try:
+           return self.__update_perimeter(Action, exceptions.ActionExisting, perimeter_id, value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ActionExisting
+            raise error
+
+    def delete_action(self, policy_id, perimeter_id):
+        self.__delete_perimeter(Action, exceptions.ActionUnknown, policy_id, perimeter_id)
+
+    def __is_data_exist(self, ClassType, category_id=None):
+
+        with self.get_session_for_read() as session:
+            query = session.query(ClassType)
+            query = query.filter_by(category_id=category_id)
+            ref_list = query.all()
+            if ref_list:
+                return True
+            return False
+
+    def __get_data(self, ClassType, policy_id, data_id=None, category_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(ClassType)
+            if policy_id and data_id and category_id:
+                query = query.filter_by(policy_id=policy_id, id=data_id, category_id=category_id)
+            elif policy_id and category_id:
+                query = query.filter_by(policy_id=policy_id, category_id=category_id)
+            elif category_id:
+                query = query.filter_by(category_id=category_id)
+            elif policy_id:
+                query = query.filter_by(policy_id=policy_id)
+            else:
+                raise exceptions.PolicyUnknown
+
+            ref_list = query.all()
+            return {
+                "policy_id": policy_id,
+                "category_id": category_id,
+                "data": {_ref.id: _ref.to_dict() for _ref in ref_list}
+            }
+
+    def __set_data(self, ClassType, ClassTypeData, policy_id, data_id=None, category_id=None,
+                   value=None):
+        with self.get_session_for_write() as session:
+            query = session.query(ClassTypeData)
+            query = query.filter_by(policy_id=policy_id, id=data_id, category_id=category_id)
+            ref = query.first()
+            if not ref:
+                value_wo_name = copy.deepcopy(value)
+                value_wo_name.pop("name", None)
+                new_ref = ClassTypeData.from_dict(
+                    {
+                        "id": data_id if data_id else uuid4().hex,
+                        'name': value["name"],
+                        'value': value_wo_name,
+                        'category_id': category_id,
+                        'policy_id': policy_id,
+                    }
+                )
+                session.add(new_ref)
+                ref = new_ref
+            else:
+                for attr in ClassType.attributes:
+                    if attr != 'id':
+                        setattr(ref, attr, getattr(ref, attr))
+            # session.flush()
+            return {
+                "policy_id": policy_id,
+                "category_id": category_id,
+                "data": {ref.id: ref.to_dict()}
+            }
+
+    def __delete_data(self, ClassType, policy_id, category_id, data_id):
+
+        if not data_id:
+            raise exceptions.DataUnknown
+        with self.get_session_for_write() as session:
+            query = session.query(ClassType)
+            if category_id:
+                query = query.filter_by(policy_id=policy_id, category_id=category_id, id=data_id)
+            else:
+                query = query.filter_by(policy_id=policy_id, id=data_id)
+            ref = query.first()
+            if ref:
+                session.delete(ref)
+
+    def is_subject_data_exist(self, category_id=None):
+        return self.__is_data_exist(SubjectData, category_id=category_id)
+
+    def get_subject_data(self, policy_id, data_id=None, category_id=None):
+        return self.__get_data(SubjectData, policy_id, data_id=data_id, category_id=category_id)
+
+    def set_subject_data(self, policy_id, data_id=None, category_id=None, value=None):
+        try:
+            return self.__set_data(Subject, SubjectData, policy_id, data_id=data_id,
+                                   category_id=category_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.SubjectScopeExisting
+            raise error
+
+    def delete_subject_data(self, policy_id, category_id, data_id):
+        return self.__delete_data(SubjectData, policy_id, category_id, data_id)
+
+    def is_object_data_exist(self, category_id=None):
+        return self.__is_data_exist(ObjectData, category_id=category_id)
+
+    def get_object_data(self, policy_id, data_id=None, category_id=None):
+        return self.__get_data(ObjectData, policy_id, data_id=data_id, category_id=category_id)
+
+    def set_object_data(self, policy_id, data_id=None, category_id=None, value=None):
+        try:
+            return self.__set_data(Object, ObjectData, policy_id, data_id=data_id,
+                                   category_id=category_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ObjectScopeExisting
+            raise error
+
+    def delete_object_data(self, policy_id, category_id, data_id):
+        return self.__delete_data(ObjectData, policy_id, category_id, data_id)
+
+    def is_action_data_exist(self, category_id=None):
+        return self.__is_data_exist(ActionData, category_id=category_id)
+
+    def get_action_data(self, policy_id, data_id=None, category_id=None):
+        return self.__get_data(ActionData, policy_id, data_id=data_id, category_id=category_id)
+
+    def set_action_data(self, policy_id, data_id=None, category_id=None, value=None):
+        try:
+            return self.__set_data(Action, ActionData, policy_id, data_id=data_id,
+                                   category_id=category_id, value=value)
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ActionScopeExisting
+            raise error
+
+    def delete_action_data(self, policy_id, category_id, data_id):
+        return self.__delete_data(ActionData, policy_id, category_id, data_id)
+
+    def get_subject_assignments(self, policy_id, subject_id=None, category_id=None):
+        with self.get_session_for_write() as session:
+            query = session.query(SubjectAssignment)
+            if subject_id and category_id:
+                # TODO change the subject_id to perimeter_id to allow code refactoring
+                query = query.filter_by(policy_id=policy_id, subject_id=subject_id,
+                                        category_id=category_id)
+            elif subject_id:
+                query = query.filter_by(policy_id=policy_id, subject_id=subject_id)
+            else:
+                query = query.filter_by(policy_id=policy_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def add_subject_assignment(self, policy_id, subject_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(SubjectAssignment)
+            query = query.filter_by(policy_id=policy_id, subject_id=subject_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                if data_id not in assignments:
+                    assignments.append(data_id)
+                    setattr(ref, "assignments", assignments)
+                else:
+                    raise exceptions.SubjectAssignmentExisting
+            else:
+                ref = SubjectAssignment.from_dict(
+                    {
+                        "id": uuid4().hex,
+                        "policy_id": policy_id,
+                        "subject_id": subject_id,
+                        "category_id": category_id,
+                        "assignments": [data_id, ],
+                    }
+                )
+                session.add(ref)
+            return {ref.id: ref.to_dict()}
+
+    def is_subject_category_has_assignment(self, category_id):
+        return self.__is_category_has_assignment(SubjectAssignment, category_id)
+
+    def is_object_category_has_assignment(self, category_id):
+        return self.__is_category_has_assignment(ObjectAssignment, category_id)
+
+    def is_action_category_has_assignment(self, category_id):
+        return self.__is_category_has_assignment(ActionAssignment, category_id)
+
+    def __is_category_has_assignment(self, ClassType, category_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ClassType)
+            query = query.filter_by(category_id=category_id)
+            count = query.count()
+            return count > 0
+
+    def delete_subject_assignment(self, policy_id, subject_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(SubjectAssignment)
+            query = query.filter_by(policy_id=policy_id, subject_id=subject_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                # TODO (asteroide): if data_id is None, delete all
+                if data_id in assignments:
+                    assignments.remove(data_id)
+                    # FIXME (asteroide): the setattr doesn't work here ; the assignments is not updated in the database
+                    setattr(ref, "assignments", assignments)
+                if not assignments:
+                    session.delete(ref)
+
+    def get_object_assignments(self, policy_id, object_id=None, category_id=None):
+        with self.get_session_for_write() as session:
+            query = session.query(ObjectAssignment)
+            if object_id and category_id:
+                # TODO change the object_id to perimeter_id to allow code refactoring
+                query = query.filter_by(policy_id=policy_id, object_id=object_id,
+                                        category_id=category_id)
+            elif object_id:
+                query = query.filter_by(policy_id=policy_id, object_id=object_id)
+            else:
+                query = query.filter_by(policy_id=policy_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def add_object_assignment(self, policy_id, object_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ObjectAssignment)
+            query = query.filter_by(policy_id=policy_id, object_id=object_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                if data_id not in assignments:
+                    assignments.append(data_id)
+                    setattr(ref, "assignments", assignments)
+                else:
+                    raise exceptions.ObjectAssignmentExisting
+            else:
+                ref = ObjectAssignment.from_dict(
+                    {
+                        "id": uuid4().hex,
+                        "policy_id": policy_id,
+                        "object_id": object_id,
+                        "category_id": category_id,
+                        "assignments": [data_id, ],
+                    }
+                )
+                session.add(ref)
+            return {ref.id: ref.to_dict()}
+
+    def delete_object_assignment(self, policy_id, object_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ObjectAssignment)
+            query = query.filter_by(policy_id=policy_id, object_id=object_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                # TODO (asteroide): if data_id is None, delete all
+                if data_id in assignments:
+                    assignments.remove(data_id)
+                    # FIXME (asteroide): the setattr doesn't work here ; the assignments is not updated in the database
+                    setattr(ref, "assignments", assignments)
+                if not assignments:
+                    session.delete(ref)
+
+    def get_action_assignments(self, policy_id, action_id=None, category_id=None):
+        with self.get_session_for_write() as session:
+            if not policy_id:
+                return exceptions.PolicyUnknown
+            query = session.query(ActionAssignment)
+            if action_id and category_id:
+                # TODO change the action_id to perimeter_id to allow code refactoring
+                query = query.filter_by(policy_id=policy_id, action_id=action_id,
+                                        category_id=category_id)
+            elif action_id:
+                query = query.filter_by(policy_id=policy_id, action_id=action_id)
+            elif category_id:
+                query = query.filter_by(policy_id=policy_id, category_id=category_id)
+            else:
+                query = query.filter_by(policy_id=policy_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def add_action_assignment(self, policy_id, action_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ActionAssignment)
+            query = query.filter_by(policy_id=policy_id, action_id=action_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                if data_id not in assignments:
+                    assignments.append(data_id)
+                    setattr(ref, "assignments", assignments)
+                else:
+                    raise exceptions.ActionAssignmentExisting
+            else:
+                ref = ActionAssignment.from_dict(
+                    {
+                        "id": uuid4().hex,
+                        "policy_id": policy_id,
+                        "action_id": action_id,
+                        "category_id": category_id,
+                        "assignments": [data_id, ],
+                    }
+                )
+                session.add(ref)
+            return {ref.id: ref.to_dict()}
+
+    def delete_action_assignment(self, policy_id, action_id, category_id, data_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ActionAssignment)
+            query = query.filter_by(policy_id=policy_id, action_id=action_id,
+                                    category_id=category_id)
+            ref = query.first()
+            if ref:
+                old_ref = copy.deepcopy(ref.to_dict())
+                assignments = old_ref["assignments"]
+                # TODO (asteroide): if data_id is None, delete all
+                if data_id in assignments:
+                    assignments.remove(data_id)
+                    # FIXME (asteroide): the setattr doesn't work here ; the assignments is not updated in the database
+                    setattr(ref, "assignments", assignments)
+                if not assignments:
+                    session.delete(ref)
+
+    def get_rules(self, policy_id, rule_id=None, meta_rule_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(Rule)
+            if rule_id:
+                query = query.filter_by(policy_id=policy_id, rule_id=rule_id)
+                ref = query.first()
+                return {ref.id: ref.to_dict()}
+            elif meta_rule_id and policy_id:
+                query = query.filter_by(policy_id=policy_id, meta_rule_id=meta_rule_id)
+                ref_list = query.all()
+                return {
+                    "meta_rule_id": meta_rule_id,
+                    "policy_id": policy_id,
+                    "rules": list(map(lambda x: x.to_dict(), ref_list))
+                }
+            else:
+                query = query.filter_by(policy_id=policy_id)
+                ref_list = query.all()
+                return {
+                    "policy_id": policy_id,
+                    "rules": list(map(lambda x: x.to_dict(), ref_list))
+                }
+
+    def is_meta_rule_has_rules(self, meta_rule_id):
+        with self.get_session_for_read() as session:
+            query = session.query(Rule)
+
+            query = query.filter_by(meta_rule_id=meta_rule_id)
+            count = query.count()
+            return count > 0
+
+    def add_rule(self, policy_id, meta_rule_id, value):
+        try:
+            rules = self.get_rules(policy_id, meta_rule_id=meta_rule_id)
+            for _rule in map(lambda x: x["rule"], rules["rules"]):
+                if list(value.get('rule')) == list(_rule):
+                    raise exceptions.RuleExisting
+            with self.get_session_for_write() as session:
+                ref = Rule.from_dict(
+                    {
+                        "id": uuid4().hex,
+                        "policy_id": policy_id,
+                        "meta_rule_id": meta_rule_id,
+                        "rule": value
+                    }
+                )
+                session.add(ref)
+                return {ref.id: ref.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.RuleExisting
+            raise error
+
+    def delete_rule(self, policy_id, rule_id):
+        with self.get_session_for_write() as session:
+            query = session.query(Rule)
+            query = query.filter_by(policy_id=policy_id, id=rule_id)
+            ref = query.first()
+            if ref:
+                session.delete(ref)
+
+
+class ModelConnector(BaseConnector, ModelDriver):
+
+    def update_model(self, model_id, value):
+        try:
+            with self.get_session_for_write() as session:
+                query = session.query(Model)
+                if model_id:
+                    query = query.filter_by(id=model_id)
+                ref = query.first()
+                if ref:
+                    value_wo_name = copy.deepcopy(value)
+                    value_wo_name.pop("name", None)
+                    setattr(ref, "name", value["name"])
+                    d = dict(ref.value)
+                    d.update(value_wo_name)
+                    setattr(ref, "value", d)
+                return {ref.id: ref.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ModelExisting
+            raise error
+
+    def delete_model(self, model_id):
+        with self.get_session_for_write() as session:
+            ref = session.query(Model).get(model_id)
+            session.delete(ref)
+
+    def add_model(self, model_id=None, value=None):
+        try:
+            with self.get_session_for_write() as session:
+                value_wo_name = copy.deepcopy(value)
+                value_wo_name.pop("name", None)
+                new = Model.from_dict({
+                    "id": model_id if model_id else uuid4().hex,
+                    "name": value["name"],
+                    "value": value_wo_name
+                })
+                session.add(new)
+                return {new.id: new.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ModelExisting
+
+    def get_models(self, model_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(Model)
+            if model_id:
+                ref_list = query.filter(Model.id == model_id)
+            else:
+                ref_list = query.all()
+
+            r = {_ref.id: _ref.to_dict() for _ref in ref_list}
+            return r
+
+    def set_meta_rule(self, meta_rule_id, value):
+        try:
+            with self.get_session_for_write() as session:
+                value_wo_other_data = copy.deepcopy(value)
+                value_wo_other_data.pop("name", None)
+                value_wo_other_data.pop("subject_categories", None)
+                value_wo_other_data.pop("object_categories", None)
+                value_wo_other_data.pop("action_categories", None)
+                if meta_rule_id is None:
+                    try:
+                        ref = MetaRule.from_dict(
+                            {
+                                "id": uuid4().hex,
+                                "name": value["name"],
+                                "subject_categories": value["subject_categories"],
+                                "object_categories": value["object_categories"],
+                                "action_categories": value["action_categories"],
+                                "value": value_wo_other_data
+                            }
+                        )
+                        session.add(ref)
+                    except sqlalchemy.exc.IntegrityError as error:
+                        if 'UNIQUE constraint' in str(error):
+                            raise exceptions.MetaRuleExisting
+                        raise error
+                else:
+                    query = session.query(MetaRule)
+                    query = query.filter_by(id=meta_rule_id)
+                    ref = query.first()
+                    setattr(ref, "name", value["name"])
+                    setattr(ref, "subject_categories", value["subject_categories"])
+                    setattr(ref, "object_categories", value["object_categories"])
+                    setattr(ref, "action_categories", value["action_categories"])
+                    setattr(ref, "value", value_wo_other_data)
+                return {ref.id: ref.to_dict()}
+        except sqlalchemy.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.MetaRuleExisting
+            raise error
+
+    def get_meta_rules(self, meta_rule_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(MetaRule)
+            if meta_rule_id:
+                query = query.filter_by(id=meta_rule_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def delete_meta_rule(self, meta_rule_id=None):
+        with self.get_session_for_write() as session:
+            query = session.query(MetaRule)
+            query = query.filter_by(id=meta_rule_id)
+            ref = query.first()
+            if ref:
+                session.delete(ref)
+
+    def __get_perimeter_categories(self, ClassType, category_id=None):
+        with self.get_session_for_read() as session:
+            query = session.query(ClassType)
+            if category_id:
+                query = query.filter_by(id=category_id)
+            ref_list = query.all()
+            return {_ref.id: _ref.to_dict() for _ref in ref_list}
+
+    def __add_perimeter_category(self, ClassType, name, description, uuid=None):
+        if not name or not name.strip():
+            raise exceptions.CategoryNameInvalid
+        with self.get_session_for_write() as session:
+            ref = ClassType.from_dict(
+                {
+                    "id": uuid if uuid else uuid4().hex,
+                    "name": name,
+                    "description": description
+                }
+            )
+            session.add(ref)
+            return {ref.id: ref.to_dict()}
+
+    def __delete_perimeter_category(self, ClassType, category_id):
+        with self.get_session_for_write() as session:
+            query = session.query(ClassType)
+            query = query.filter_by(id=category_id)
+            ref = query.first()
+            if ref:
+                session.delete(ref)
+
+    def get_subject_categories(self, category_id=None):
+        return self.__get_perimeter_categories(SubjectCategory, category_id=category_id)
+
+    def add_subject_category(self, name, description, uuid=None):
+        try:
+            return self.__add_perimeter_category(SubjectCategory, name, description, uuid=uuid)
+        except sql.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.SubjectCategoryExisting
+            raise error
+
+    def delete_subject_category(self, category_id):
+        self.__delete_perimeter_category(SubjectCategory, category_id)
+
+    def get_object_categories(self, category_id=None):
+        return self.__get_perimeter_categories(ObjectCategory, category_id=category_id)
+
+    def add_object_category(self, name, description, uuid=None):
+        try:
+            return self.__add_perimeter_category(ObjectCategory, name, description, uuid=uuid)
+        except sql.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ObjectCategoryExisting
+            raise error
+
+    def delete_object_category(self, category_id):
+        self.__delete_perimeter_category(ObjectCategory, category_id)
+
+    def get_action_categories(self, category_id=None):
+
+        return self.__get_perimeter_categories(ActionCategory, category_id=category_id)
+
+    def add_action_category(self, name, description, uuid=None):
+        try:
+            return self.__add_perimeter_category(ActionCategory, name, description, uuid=uuid)
+        except sql.exc.IntegrityError as error:
+            if 'UNIQUE constraint' in str(error):
+                raise exceptions.ActionCategoryExisting
+            raise error
+
+    def delete_action_category(self, category_id):
+        self.__delete_perimeter_category(ActionCategory, category_id)
+
+    # Getter and Setter for subject_category
+
+    # def get_subject_categories_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(SubjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.subject_category for _ref in ref_list}
+    #
+    # def set_subject_category_dict(self, intra_extension_id, subject_category_id, subject_category_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=subject_category_id)
+    #         ref = query.first()
+    #         new_ref = SubjectCategory.from_dict(
+    #             {
+    #                 "id": subject_category_id,
+    #                 'subject_category': subject_category_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in SubjectCategory.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # # session.flush()
+    #         return {subject_category_id: SubjectCategory.to_dict(ref)['subject_category']}
+    #
+    # def del_subject_category(self, intra_extension_id, subject_category_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=subject_category_id)
+    #         ref = query.first()
+    #         self.del_subject_assignment(intra_extension_id, None, None, None)
+    #         session.delete(ref)
+    #
+    # # Getter and Setter for object_category
+    #
+    # def get_object_categories_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ObjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.object_category for _ref in ref_list}
+    #
+    # def set_object_category_dict(self, intra_extension_id, object_category_id, object_category_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ObjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=object_category_id)
+    #         ref = query.first()
+    #         new_ref = ObjectCategory.from_dict(
+    #             {
+    #                 "id": object_category_id,
+    #                 'object_category': object_category_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in ObjectCategory.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {object_category_id: ObjectCategory.to_dict(ref)['object_category']}
+    #
+    # def del_object_category(self, intra_extension_id, object_category_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ObjectCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=object_category_id)
+    #         ref = query.first()
+    #         self.del_object_assignment(intra_extension_id, None, None, None)
+    #         session.delete(ref)
+    #
+    # # Getter and Setter for action_category
+    #
+    # def get_action_categories_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ActionCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.action_category for _ref in ref_list}
+    #
+    # def set_action_category_dict(self, intra_extension_id, action_category_id, action_category_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ActionCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=action_category_id)
+    #         ref = query.first()
+    #         new_ref = ActionCategory.from_dict(
+    #             {
+    #                 "id": action_category_id,
+    #                 'action_category': action_category_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in ActionCategory.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {action_category_id: ActionCategory.to_dict(ref)['action_category']}
+    #
+    # def del_action_category(self, intra_extension_id, action_category_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ActionCategory)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=action_category_id)
+    #         ref = query.first()
+    #         self.del_action_assignment(intra_extension_id, None, None, None)
+    #         session.delete(ref)
+
+    # Perimeter
+
+    # def get_subjects_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(Subject)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.subject for _ref in ref_list}
+    #
+    # def set_subject_dict(self, intra_extension_id, subject_id, subject_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Subject)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=subject_id)
+    #         ref = query.first()
+    #         # if 'id' in subject_dict:
+    #         #     subject_dict['id'] = subject_id
+    #         new_ref = Subject.from_dict(
+    #             {
+    #                 "id": subject_id,
+    #                 'subject': subject_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Subject.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {subject_id: Subject.to_dict(ref)['subject']}
+    #
+    # def del_subject(self, intra_extension_id, subject_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Subject)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=subject_id)
+    #         ref = query.first()
+    #         session.delete(ref)
+    #
+    # def get_objects_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(Object)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.object for _ref in ref_list}
+    #
+    # def set_object_dict(self, intra_extension_id, object_id, object_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Object)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=object_id)
+    #         ref = query.first()
+    #         new_ref = Object.from_dict(
+    #             {
+    #                 "id": object_id,
+    #                 'object': object_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Object.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {object_id: Object.to_dict(ref)['object']}
+    #
+    # def del_object(self, intra_extension_id, object_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Object)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=object_id)
+    #         ref = query.first()
+    #         session.delete(ref)
+    #
+    # def get_actions_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(Action)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.action for _ref in ref_list}
+    #
+    # def set_action_dict(self, intra_extension_id, action_id, action_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Action)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=action_id)
+    #         ref = query.first()
+    #         new_ref = Action.from_dict(
+    #             {
+    #                 "id": action_id,
+    #                 'action': action_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Action.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {action_id: Action.to_dict(ref)['action']}
+    #
+    # def del_action(self, intra_extension_id, action_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Action)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=action_id)
+    #         ref = query.first()
+    #         session.delete(ref)
+
+    # Getter and Setter for subject_scope
+
+    # def get_subject_scopes_dict(self, intra_extension_id, subject_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(SubjectScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, subject_category_id=subject_category_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.subject_scope for _ref in ref_list}
+    #
+    # def set_subject_scope_dict(self, intra_extension_id, subject_category_id, subject_scope_id, subject_scope_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubjectScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, subject_category_id=subject_category_id, id=subject_scope_id)
+    #         ref = query.first()
+    #         new_ref = SubjectScope.from_dict(
+    #             {
+    #                 "id": subject_scope_id,
+    #                 'subject_scope': subject_scope_dict,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'subject_category_id': subject_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Subject.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {subject_scope_id: SubjectScope.to_dict(ref)['subject_scope']}
+    #
+    # def del_subject_scope(self, intra_extension_id, subject_category_id, subject_scope_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubjectScope)
+    #         if not subject_category_id or not subject_scope_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             for ref in query.all():
+    #                 session.delete(ref)
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, subject_category_id=subject_category_id, id=subject_scope_id)
+    #             ref = query.first()
+    #             session.delete(ref)
+    #
+    # # Getter and Setter for object_category_scope
+    #
+    # def get_object_scopes_dict(self, intra_extension_id, object_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ObjectScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, object_category_id=object_category_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.object_scope for _ref in ref_list}
+    #
+    # def set_object_scope_dict(self, intra_extension_id, object_category_id, object_scope_id, object_scope_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ObjectScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, object_category_id=object_category_id, id=object_scope_id)
+    #         ref = query.first()
+    #         new_ref = ObjectScope.from_dict(
+    #             {
+    #                 "id": object_scope_id,
+    #                 'object_scope': object_scope_dict,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'object_category_id': object_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Object.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {object_scope_id: ObjectScope.to_dict(ref)['object_scope']}
+    #
+    # def del_object_scope(self, intra_extension_id, object_category_id, object_scope_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ObjectScope)
+    #         if not object_category_id or not object_scope_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             for ref in query.all():
+    #                 session.delete(ref)
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, object_category_id=object_category_id, id=object_scope_id)
+    #             ref = query.first()
+    #             session.delete(ref)
+    #
+    # # Getter and Setter for action_scope
+    #
+    # def get_action_scopes_dict(self, intra_extension_id, action_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ActionScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, action_category_id=action_category_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.action_scope for _ref in ref_list}
+    #
+    # def set_action_scope_dict(self, intra_extension_id, action_category_id, action_scope_id, action_scope_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ActionScope)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, action_category_id=action_category_id, id=action_scope_id)
+    #         ref = query.first()
+    #         new_ref = ActionScope.from_dict(
+    #             {
+    #                 "id": action_scope_id,
+    #                 'action_scope': action_scope_dict,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'action_category_id': action_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Action.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {action_scope_id: ActionScope.to_dict(ref)['action_scope']}
+    #
+    # def del_action_scope(self, intra_extension_id, action_category_id, action_scope_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ActionScope)
+    #         if not action_category_id or not action_scope_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             for ref in query.all():
+    #                 session.delete(ref)
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, action_category_id=action_category_id, id=action_scope_id)
+    #             ref = query.first()
+    #             session.delete(ref)
+    #
+    # # Getter and Setter for subject_category_assignment
+    #
+    # def get_subject_assignment_list(self, intra_extension_id, subject_id, subject_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(SubjectAssignment)
+    #         if not subject_id or not subject_category_id or not subject_category_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             ref = query.all()
+    #             return ref
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, subject_id=subject_id, subject_category_id=subject_category_id)
+    #             ref = query.first()
+    #         if not ref:
+    #             return list()
+    #         LOG.info("get_subject_assignment_list {}".format(ref.subject_assignment))
+    #         return list(ref.subject_assignment)
+    #
+    # def set_subject_assignment_list(self, intra_extension_id, subject_id, subject_category_id, subject_assignment_list=[]):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubjectAssignment)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, subject_id=subject_id, subject_category_id=subject_category_id)
+    #         ref = query.first()
+    #         new_ref = SubjectAssignment.from_dict(
+    #             {
+    #                 "id": uuid4().hex,
+    #                 'subject_assignment': subject_assignment_list,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'subject_id': subject_id,
+    #                 'subject_category_id': subject_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in SubjectAssignment.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return subject_assignment_list
+    #
+    # def add_subject_assignment_list(self, intra_extension_id, subject_id, subject_category_id, subject_scope_id):
+    #     new_subject_assignment_list = self.get_subject_assignment_list(intra_extension_id, subject_id, subject_category_id)
+    #     if subject_scope_id not in new_subject_assignment_list:
+    #         new_subject_assignment_list.append(subject_scope_id)
+    #     return self.set_subject_assignment_list(intra_extension_id, subject_id, subject_category_id, new_subject_assignment_list)
+    #
+    # def del_subject_assignment(self, intra_extension_id, subject_id, subject_category_id, subject_scope_id):
+    #     if not subject_id or not subject_category_id or not subject_category_id:
+    #         with self.get_session_for_write() as session:
+    #             for ref in self.get_subject_assignment_list(intra_extension_id, None, None):
+    #                 session.delete(ref)
+    #             session.flush()
+    #             return
+    #     new_subject_assignment_list = self.get_subject_assignment_list(intra_extension_id, subject_id, subject_category_id)
+    #     new_subject_assignment_list.remove(subject_scope_id)
+    #     return self.set_subject_assignment_list(intra_extension_id, subject_id, subject_category_id, new_subject_assignment_list)
+    #
+    # # Getter and Setter for object_category_assignment
+    #
+    # def get_object_assignment_list(self, intra_extension_id, object_id, object_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ObjectAssignment)
+    #         if not object_id or not object_category_id or not object_category_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             ref = query.all()
+    #             return ref
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, object_id=object_id, object_category_id=object_category_id)
+    #             ref = query.first()
+    #         if not ref:
+    #             return list()
+    #         return list(ref.object_assignment)
+    #
+    # def set_object_assignment_list(self, intra_extension_id, object_id, object_category_id, object_assignment_list=[]):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ObjectAssignment)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, object_id=object_id, object_category_id=object_category_id)
+    #         ref = query.first()
+    #         new_ref = ObjectAssignment.from_dict(
+    #             {
+    #                 "id": uuid4().hex,
+    #                 'object_assignment': object_assignment_list,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'object_id': object_id,
+    #                 'object_category_id': object_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #         else:
+    #             for attr in ObjectAssignment.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return self.get_object_assignment_list(intra_extension_id, object_id, object_category_id)
+    #
+    # def add_object_assignment_list(self, intra_extension_id, object_id, object_category_id, object_scope_id):
+    #     new_object_assignment_list = self.get_object_assignment_list(intra_extension_id, object_id, object_category_id)
+    #     if object_scope_id not in new_object_assignment_list:
+    #         new_object_assignment_list.append(object_scope_id)
+    #     return self.set_object_assignment_list(intra_extension_id, object_id, object_category_id, new_object_assignment_list)
+    #
+    # def del_object_assignment(self, intra_extension_id, object_id, object_category_id, object_scope_id):
+    #     if not object_id or not object_category_id or not object_category_id:
+    #         with self.get_session_for_write() as session:
+    #             for ref in self.get_object_assignment_list(intra_extension_id, None, None):
+    #                 session.delete(ref)
+    #             session.flush()
+    #             return
+    #     new_object_assignment_list = self.get_object_assignment_list(intra_extension_id, object_id, object_category_id)
+    #     new_object_assignment_list.remove(object_scope_id)
+    #     return self.set_object_assignment_list(intra_extension_id, object_id, object_category_id, new_object_assignment_list)
+    #
+    # # Getter and Setter for action_category_assignment
+    #
+    # def get_action_assignment_list(self, intra_extension_id, action_id, action_category_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(ActionAssignment)
+    #         if not action_id or not action_category_id or not action_category_id:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id)
+    #             ref = query.all()
+    #             return ref
+    #         else:
+    #             query = query.filter_by(intra_extension_id=intra_extension_id, action_id=action_id, action_category_id=action_category_id)
+    #             ref = query.first()
+    #         if not ref:
+    #             return list()
+    #         return list(ref.action_assignment)
+    #
+    # def set_action_assignment_list(self, intra_extension_id, action_id, action_category_id, action_assignment_list=[]):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(ActionAssignment)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, action_id=action_id, action_category_id=action_category_id)
+    #         ref = query.first()
+    #         new_ref = ActionAssignment.from_dict(
+    #             {
+    #                 "id": uuid4().hex,
+    #                 'action_assignment': action_assignment_list,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'action_id': action_id,
+    #                 'action_category_id': action_category_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #         else:
+    #             for attr in ActionAssignment.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return self.get_action_assignment_list(intra_extension_id, action_id, action_category_id)
+    #
+    # def add_action_assignment_list(self, intra_extension_id, action_id, action_category_id, action_scope_id):
+    #     new_action_assignment_list = self.get_action_assignment_list(intra_extension_id, action_id, action_category_id)
+    #     if action_scope_id not in new_action_assignment_list:
+    #         new_action_assignment_list.append(action_scope_id)
+    #     return self.set_action_assignment_list(intra_extension_id, action_id, action_category_id, new_action_assignment_list)
+    #
+    # def del_action_assignment(self, intra_extension_id, action_id, action_category_id, action_scope_id):
+    #     if not action_id or not action_category_id or not action_category_id:
+    #         with self.get_session_for_write() as session:
+    #             for ref in self.get_action_assignment_list(intra_extension_id, None, None):
+    #                 session.delete(ref)
+    #             session.flush()
+    #             return
+    #     new_action_assignment_list = self.get_action_assignment_list(intra_extension_id, action_id, action_category_id)
+    #     new_action_assignment_list.remove(action_scope_id)
+    #     return self.set_action_assignment_list(intra_extension_id, action_id, action_category_id, new_action_assignment_list)
+    #
+    # # Getter and Setter for sub_meta_rule
+    #
+    # def get_aggregation_algorithm_id(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(IntraExtension)
+    #         query = query.filter_by(id=intra_extension_id)
+    #         ref = query.first()
+    #         try:
+    #             return {"aggregation_algorithm": ref.intra_extension["aggregation_algorithm"]}
+    #         except KeyError:
+    #             return ""
+    #
+    # def set_aggregation_algorithm_id(self, intra_extension_id, aggregation_algorithm_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(IntraExtension)
+    #         query = query.filter_by(id=intra_extension_id)
+    #         ref = query.first()
+    #         intra_extension_dict = dict(ref.intra_extension)
+    #         intra_extension_dict["aggregation_algorithm"] = aggregation_algorithm_id
+    #         setattr(ref, "intra_extension", intra_extension_dict)
+    #         # session.flush()
+    #         return {"aggregation_algorithm": ref.intra_extension["aggregation_algorithm"]}
+    #
+    # def del_aggregation_algorithm(self, intra_extension_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(IntraExtension)
+    #         query = query.filter_by(id=intra_extension_id)
+    #         ref = query.first()
+    #         intra_extension_dict = dict(ref.intra_extension)
+    #         intra_extension_dict["aggregation_algorithm"] = ""
+    #         setattr(ref, "intra_extension", intra_extension_dict)
+    #         return self.get_aggregation_algorithm_id(intra_extension_id)
+    #
+    # # Getter and Setter for sub_meta_rule
+    #
+    # def get_sub_meta_rules_dict(self, intra_extension_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(SubMetaRule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.sub_meta_rule for _ref in ref_list}
+    #
+    # def set_sub_meta_rule_dict(self, intra_extension_id, sub_meta_rule_id, sub_meta_rule_dict):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubMetaRule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=sub_meta_rule_id)
+    #         ref = query.first()
+    #         new_ref = SubMetaRule.from_dict(
+    #             {
+    #                 "id": sub_meta_rule_id,
+    #                 'sub_meta_rule': sub_meta_rule_dict,
+    #                 'intra_extension_id': intra_extension_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #         else:
+    #             _sub_meta_rule_dict = dict(ref.sub_meta_rule)
+    #             _sub_meta_rule_dict.update(sub_meta_rule_dict)
+    #             setattr(new_ref, "sub_meta_rule", _sub_meta_rule_dict)
+    #             for attr in SubMetaRule.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return self.get_sub_meta_rules_dict(intra_extension_id)
+    #
+    # def del_sub_meta_rule(self, intra_extension_id, sub_meta_rule_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(SubMetaRule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, id=sub_meta_rule_id)
+    #         ref = query.first()
+    #         session.delete(ref)
+    #
+    # # Getter and Setter for rules
+    #
+    # def get_rules_dict(self, intra_extension_id, sub_meta_rule_id):
+    #     with self.get_session_for_read() as session:
+    #         query = session.query(Rule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, sub_meta_rule_id=sub_meta_rule_id)
+    #         ref_list = query.all()
+    #         return {_ref.id: _ref.rule for _ref in ref_list}
+    #
+    # def set_rule_dict(self, intra_extension_id, sub_meta_rule_id, rule_id, rule_list):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Rule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, sub_meta_rule_id=sub_meta_rule_id, id=rule_id)
+    #         ref = query.first()
+    #         new_ref = Rule.from_dict(
+    #             {
+    #                 "id": rule_id,
+    #                 'rule': rule_list,
+    #                 'intra_extension_id': intra_extension_id,
+    #                 'sub_meta_rule_id': sub_meta_rule_id
+    #             }
+    #         )
+    #         if not ref:
+    #             session.add(new_ref)
+    #             ref = new_ref
+    #         else:
+    #             for attr in Rule.attributes:
+    #                 if attr != 'id':
+    #                     setattr(ref, attr, getattr(new_ref, attr))
+    #         # session.flush()
+    #         return {rule_id: ref.rule}
+    #
+    # def del_rule(self, intra_extension_id, sub_meta_rule_id, rule_id):
+    #     with self.get_session_for_write() as session:
+    #         query = session.query(Rule)
+    #         query = query.filter_by(intra_extension_id=intra_extension_id, sub_meta_rule_id=sub_meta_rule_id, id=rule_id)
+    #         ref = query.first()
+    #         session.delete(ref)
+
+
+class SQLConnector(PDPConnector, PolicyConnector, ModelConnector):
+    pass
diff --git a/old/python_moondb/python_moondb/core.py b/old/python_moondb/python_moondb/core.py
new file mode 100644
index 00000000..3fee146b
--- /dev/null
+++ b/old/python_moondb/python_moondb/core.py
@@ -0,0 +1,228 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import logging
+from stevedore.driver import DriverManager
+from python_moonutilities import configuration
+from python_moondb.api import model, policy, pdp, keystone
+
+logger = logging.getLogger("moon.db")
+
+
+class Driver(DriverManager):
+
+    def __init__(self, driver_name, engine_name):
+        logger.info("initialization of Driver {}".format(driver_name))
+        super(Driver, self).__init__(
+            namespace='moon_db.driver',
+            name=driver_name,
+            invoke_on_load=True,
+            invoke_args=(engine_name,),
+        )
+
+
+class ModelDriver(Driver):
+
+    def __init__(self, driver_name, engine_name):
+        super(ModelDriver, self).__init__(driver_name, engine_name)
+
+    def update_model(self, model_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_model(self, model_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_model(self, model_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_models(self, model_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_meta_rule(self, meta_rule_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_meta_rules(self, meta_rule_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_meta_rule(self, meta_rule_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_subject_categories(self, category_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_subject_category(self, name, description):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_subject_category(self, category_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_object_categories(self, category_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_object_category(self, category_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_object_category(self, category_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_action_categories(self, category_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_action_category(self, category_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_action_category(self, category_id):
+        raise NotImplementedError()  # pragma: no cover
+
+
+class PolicyDriver(Driver):
+
+    def __init__(self, driver_name, engine_name):
+        super(PolicyDriver, self).__init__(driver_name, engine_name)
+
+    def update_policy(self, policy_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_policy(self, policy_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_policy(self, policy_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_policies(self, policy_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_subjects(self, policy_id, perimeter_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_subject(self, policy_id, perimeter_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_subject(self, policy_id, perimeter_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_objects(self, policy_id, perimeter_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_object(self, policy_id, perimeter_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_object(self, policy_id, perimeter_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_actions(self, policy_id, perimeter_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_action(self, policy_id, perimeter_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_action(self, policy_id, perimeter_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_subject_data(self, policy_id, data_id=None, category_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_subject_data(self, policy_id, data_id=None, category_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_subject_data(self, policy_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_object_data(self, policy_id, data_id=None, category_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_object_data(self, policy_id, data_id=None, category_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_object_data(self, policy_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_action_data(self, policy_id, data_id=None, category_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def set_action_data(self, policy_id, data_id=None, category_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_action_data(self, policy_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_subject_assignments(self, policy_id, subject_id=None, category_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_subject_assignment(self, policy_id, subject_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_subject_assignment(self, policy_id, subject_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_object_assignments(self, policy_id, assignment_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_object_assignment(self, policy_id, subject_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_object_assignment(self, policy_id, object_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_action_assignments(self, policy_id, assignment_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_action_assignment(self, policy_id, action_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_action_assignment(self, policy_id, action_id, category_id, data_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_rules(self, policy_id, rule_id=None, meta_rule_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_rule(self, policy_id, meta_rule_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_rule(self, policy_id, rule_id):
+        raise NotImplementedError()  # pragma: no cover
+
+
+class PDPDriver(Driver):
+
+    def __init__(self, driver_name, engine_name):
+        super(PDPDriver, self).__init__(driver_name, engine_name)
+
+    def update_pdp(self, pdp_id, value):
+        raise NotImplementedError()  # pragma: no cover
+
+    def delete_pdp(self, pdp_id):
+        raise NotImplementedError()  # pragma: no cover
+
+    def add_pdp(self, pdp_id=None, value=None):
+        raise NotImplementedError()  # pragma: no cover
+
+    def get_pdp(self, pdp_id=None):
+        raise NotImplementedError()  # pragma: no cover
+
+
+class KeystoneDriver(Driver):
+
+    def __init__(self, driver_name, engine_name):
+        super(KeystoneDriver, self).__init__(driver_name, engine_name)
+
+
+conf = configuration.get_configuration("database")['database']
+
+KeystoneManager = keystone.KeystoneManager(
+    KeystoneDriver(conf['driver'], conf['url'])
+)
+
+ModelManager = model.ModelManager(
+    ModelDriver(conf['driver'], conf['url'])
+)
+
+PolicyManager = policy.PolicyManager(
+    PolicyDriver(conf['driver'], conf['url'])
+)
+
+PDPManager = pdp.PDPManager(
+    PDPDriver(conf['driver'], conf['url'])
+)
diff --git a/old/python_moondb/python_moondb/db_manager.py b/old/python_moondb/python_moondb/db_manager.py
new file mode 100644
index 00000000..c251afbb
--- /dev/null
+++ b/old/python_moondb/python_moondb/db_manager.py
@@ -0,0 +1,82 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+"""
+"""
+
+import os
+import glob
+import importlib
+import argparse
+import logging
+from sqlalchemy import create_engine
+from python_moonutilities import configuration
+from python_moondb.migrate_repo import versions
+
+
+def init_args():
+    parser = argparse.ArgumentParser()
+    parser.add_argument('command', help='command (upgrade or downgrade)',
+                        nargs=1)
+    parser.add_argument("--verbose", "-v", action='store_true',
+                        help="verbose mode")
+    parser.add_argument("--debug", "-d", action='store_true',
+                        help="debug mode")
+    args = parser.parse_args()
+
+    FORMAT = '%(asctime)-15s %(levelname)s %(message)s'
+    if args.debug:
+        logging.basicConfig(
+            format=FORMAT,
+            level=logging.DEBUG)
+    elif args.verbose:
+        logging.basicConfig(
+            format=FORMAT,
+            level=logging.INFO)
+    else:
+        logging.basicConfig(
+            format=FORMAT,
+            level=logging.WARNING)
+
+    requests_log = logging.getLogger("requests.packages.urllib3")
+    requests_log.setLevel(logging.WARNING)
+    requests_log.propagate = True
+
+    logger = logging.getLogger("moon.db.manager")
+    return args, logger
+
+
+def init_engine():
+    db_conf = configuration.get_configuration("database")["database"]
+    return create_engine(db_conf['url'])
+
+
+def main(command, logger, engine):
+    files = glob.glob(versions.__path__[0] + "/[0-9][0-9][0-9]*.py")
+    for filename in files:
+        filename = os.path.basename(filename).replace(".py", "")
+        o = importlib.import_module(
+            "python_moondb.migrate_repo.versions.{}".format(filename))
+        logger.info("Command is {}".format(command))
+        if command in ("upgrade", "u", "up"):
+            logger.info(
+                "upgrading python_moondb.migrate_repo.versions.{}".format(filename))
+            o.upgrade(engine)
+        elif command in ("downgrade", "d", "down"):
+            logger.info(
+                "downgrading python_moondb.migrate_repo.versions.{}".format(
+                    filename))
+            o.downgrade(engine)
+        else:
+            logger.critical("Cannot understand the command!")
+
+
+def run():
+    args, logger = init_args()
+    engine = init_engine()
+    main(args.command[0], logger, engine)
+
+
+if __name__ == "__main__":
+    run()
diff --git a/old/python_moondb/python_moondb/migrate_repo/__init__.py b/old/python_moondb/python_moondb/migrate_repo/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/python_moondb/migrate_repo/__init__.py
diff --git a/old/python_moondb/python_moondb/migrate_repo/versions/001_moon.py b/old/python_moondb/python_moondb/migrate_repo/versions/001_moon.py
new file mode 100644
index 00000000..13670b91
--- /dev/null
+++ b/old/python_moondb/python_moondb/migrate_repo/versions/001_moon.py
@@ -0,0 +1,267 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import json
+import sqlalchemy as sql
+from sqlalchemy import types as sql_types
+
+
+class JsonBlob(sql_types.TypeDecorator):
+    impl = sql.Text
+
+    def process_bind_param(self, value, dialect):
+        return json.dumps(value)
+
+    def process_result_value(self, value, dialect):
+        return json.loads(value)
+
+
+def upgrade(migrate_engine):
+    meta = sql.MetaData()
+    meta.bind = migrate_engine
+
+    table = sql.Table(
+        'pdp',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('keystone_project_id', sql.String(64), nullable=True, default=""),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', 'keystone_project_id', name='unique_constraint_models'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    table.create(migrate_engine, checkfirst=True)
+
+    table = sql.Table(
+        'policies',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('model_id', sql.String(64), nullable=True, default=""),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', 'model_id', name='unique_constraint_models'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    table.create(migrate_engine, checkfirst=True)
+
+    table = sql.Table(
+        'models',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', name='unique_constraint_models'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    table.create(migrate_engine, checkfirst=True)
+
+    subject_categories_table = sql.Table(
+        'subject_categories',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('description', sql.String(256), nullable=True),
+
+        sql.UniqueConstraint('name', name='unique_constraint_subject_categories'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    subject_categories_table.create(migrate_engine, checkfirst=True)
+
+    object_categories_table = sql.Table(
+        'object_categories',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('description', sql.String(256), nullable=True),
+
+        sql.UniqueConstraint('name', name='unique_constraint_object_categories'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    object_categories_table.create(migrate_engine, checkfirst=True)
+
+    action_categories_table = sql.Table(
+        'action_categories',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('description', sql.String(256), nullable=True),
+
+        sql.UniqueConstraint('name', name='unique_constraint_action_categories'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    action_categories_table.create(migrate_engine, checkfirst=True)
+
+    subjects_table = sql.Table(
+        'subjects',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', name='unique_constraint_subjects'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    subjects_table.create(migrate_engine, checkfirst=True)
+
+    objects_table = sql.Table(
+        'objects',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', name='unique_constraint_objects'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    objects_table.create(migrate_engine, checkfirst=True)
+
+    actions_table = sql.Table(
+        'actions',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', name='unique_constraint_actions'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    actions_table.create(migrate_engine, checkfirst=True)
+
+    subject_data_table = sql.Table(
+        'subject_data',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.Column('category_id', sql.ForeignKey("subject_categories.id"), nullable=False),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.UniqueConstraint('name', 'category_id', 'policy_id',
+                             name='unique_constraint_subject_data'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    subject_data_table.create(migrate_engine, checkfirst=True)
+
+    object_data_table = sql.Table(
+        'object_data',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.Column('category_id', sql.ForeignKey("object_categories.id"), nullable=False),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.UniqueConstraint('name', 'category_id', 'policy_id',
+                             name='unique_constraint_object_data'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    object_data_table.create(migrate_engine, checkfirst=True)
+
+    action_data_table = sql.Table(
+        'action_data',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.Column('category_id', sql.ForeignKey("action_categories.id"), nullable=False),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.UniqueConstraint('name', 'category_id', 'policy_id',
+                             name='unique_constraint_action_data'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    action_data_table.create(migrate_engine, checkfirst=True)
+
+    subject_assignments_table = sql.Table(
+        'subject_assignments',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('assignments', sql.String(256), nullable=True),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.Column('subject_id', sql.ForeignKey("subjects.id"), nullable=False),
+        sql.Column('category_id', sql.ForeignKey("subject_categories.id"), nullable=False),
+        sql.UniqueConstraint('policy_id', 'subject_id', 'category_id',
+                             name='unique_constraint_subject_assignment'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    subject_assignments_table.create(migrate_engine, checkfirst=True)
+
+    object_assignments_table = sql.Table(
+        'object_assignments',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('assignments', sql.String(256), nullable=True),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.Column('object_id', sql.ForeignKey("objects.id"), nullable=False),
+        sql.Column('category_id', sql.ForeignKey("object_categories.id"), nullable=False),
+        sql.UniqueConstraint('policy_id', 'object_id', 'category_id',
+                             name='unique_constraint_object_assignment'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    object_assignments_table.create(migrate_engine, checkfirst=True)
+
+    action_assignments_table = sql.Table(
+        'action_assignments',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('assignments', sql.String(256), nullable=True),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.Column('action_id', sql.ForeignKey("actions.id"), nullable=False),
+        sql.Column('category_id', sql.ForeignKey("action_categories.id"), nullable=False),
+        sql.UniqueConstraint('policy_id', 'action_id', 'category_id',
+                             name='unique_constraint_action_assignment'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    action_assignments_table.create(migrate_engine, checkfirst=True)
+
+    meta_rules_table = sql.Table(
+        'meta_rules',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('name', sql.String(256), nullable=False),
+        sql.Column('subject_categories', JsonBlob(), nullable=False),
+        sql.Column('object_categories', JsonBlob(), nullable=False),
+        sql.Column('action_categories', JsonBlob(), nullable=False),
+        sql.Column('value', JsonBlob(), nullable=True),
+        sql.UniqueConstraint('name', name='unique_constraint_meta_rule_name'),
+        # sql.UniqueConstraint('subject_categories', 'object_categories', 'action_categories', name='unique_constraint_meta_rule_def'),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    meta_rules_table.create(migrate_engine, checkfirst=True)
+
+    rules_table = sql.Table(
+        'rules',
+        meta,
+        sql.Column('id', sql.String(64), primary_key=True),
+        sql.Column('rule', JsonBlob(), nullable=True),
+        sql.Column('policy_id', sql.ForeignKey("policies.id"), nullable=False),
+        sql.Column('meta_rule_id', sql.ForeignKey("meta_rules.id"), nullable=False),
+        mysql_engine='InnoDB',
+        mysql_charset='utf8')
+    rules_table.create(migrate_engine, checkfirst=True)
+
+
+def downgrade(migrate_engine):
+    meta = sql.MetaData()
+    meta.bind = migrate_engine
+
+    for _table in (
+            'rules',
+            'meta_rules',
+            'action_assignments',
+            'object_assignments',
+            'subject_assignments',
+            'action_data',
+            'object_data',
+            'subject_data',
+            'actions',
+            'objects',
+            'subjects',
+            'action_categories',
+            'object_categories',
+            'subject_categories',
+            'models',
+            'policies',
+            'pdp'
+    ):
+        try:
+            table = sql.Table(_table, meta, autoload=True)
+            table.drop(migrate_engine, checkfirst=True)
+        except Exception as e:
+            print(e)
diff --git a/old/python_moondb/python_moondb/migrate_repo/versions/__init__.py b/old/python_moondb/python_moondb/migrate_repo/versions/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/python_moondb/migrate_repo/versions/__init__.py
diff --git a/old/python_moondb/requirements.txt b/old/python_moondb/requirements.txt
new file mode 100644
index 00000000..a205666f
--- /dev/null
+++ b/old/python_moondb/requirements.txt
@@ -0,0 +1,4 @@
+stevedore
+sqlalchemy
+pymysql
+requests
diff --git a/old/python_moondb/setup.py b/old/python_moondb/setup.py
new file mode 100644
index 00000000..e34369d4
--- /dev/null
+++ b/old/python_moondb/setup.py
@@ -0,0 +1,54 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from setuptools import setup, find_packages
+import python_moondb
+
+
+with open('requirements.txt') as f:
+    required = f.read().splitlines()
+
+setup(
+
+    name='python-moondb',
+
+    version=python_moondb.__version__,
+
+    packages=find_packages(),
+
+    author="Thomas Duval",
+
+    author_email="thomas.duval@orange.com",
+
+    description="This library is a helper to interact with the Moon database.",
+
+    long_description=open('README.md').read(),
+
+    install_requires=required,
+
+    include_package_data=True,
+
+    url='https://git.opnfv.org/cgit/moon/',
+
+    classifiers=[
+        "Programming Language :: Python",
+        "Development Status :: 1 - Planning",
+        "License :: OSI Approved",
+        "Natural Language :: English",
+        "Operating System :: OS Independent",
+        "Programming Language :: Python :: 3",
+    ],
+
+    entry_points={
+        "moon_db.driver":
+            [
+                "sql = python_moondb.backends.sql:SQLConnector",
+            ],
+        'console_scripts': [
+            'moon_db_manager = python_moondb.db_manager:run',
+        ],
+    }
+
+)
diff --git a/old/python_moondb/tests/unit_python/conftest.py b/old/python_moondb/tests/unit_python/conftest.py
new file mode 100644
index 00000000..a1057907
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/conftest.py
@@ -0,0 +1,145 @@
+import base64
+import json
+import logging
+import os
+import pytest
+import requests_mock
+import mock_components
+import mock_keystone
+
+CONF = {
+    "openstack": {
+        "keystone": {
+            "url": "http://keystone:5000/v3",
+            "user": "admin",
+            "check_token": False,
+            "password": "p4ssw0rd",
+            "domain": "default",
+            "certificate": False,
+            "project": "admin"
+        }
+    },
+    "components": {
+        "wrapper": {
+            "bind": "0.0.0.0",
+            "port": 8080,
+            "container": "wukongsun/moon_wrapper:v4.3",
+            "timeout": 5,
+            "hostname": "wrapper"
+        },
+        "manager": {
+            "bind": "0.0.0.0",
+            "port": 8082,
+            "container": "wukongsun/moon_manager:v4.3",
+            "hostname": "manager"
+        },
+        "port_start": 31001,
+        "orchestrator": {
+            "bind": "0.0.0.0",
+            "port": 8083,
+            "container": "wukongsun/moon_orchestrator:v4.3",
+            "hostname": "interface"
+        },
+        "interface": {
+            "bind": "0.0.0.0",
+            "port": 8080,
+            "container": "wukongsun/moon_interface:v4.3",
+            "hostname": "interface"
+        }
+    },
+    "plugins": {
+        "session": {
+            "port": 8082,
+            "container": "asteroide/session:latest"
+        },
+        "authz": {
+            "port": 8081,
+            "container": "wukongsun/moon_authz:v4.3"
+        }
+    },
+    "logging": {
+        "handlers": {
+            "file": {
+                "filename": "/tmp/moon.log",
+                "class": "logging.handlers.RotatingFileHandler",
+                "level": "DEBUG",
+                "formatter": "custom",
+                "backupCount": 3,
+                "maxBytes": 1048576
+            },
+            "console": {
+                "class": "logging.StreamHandler",
+                "formatter": "brief",
+                "level": "INFO",
+                "stream": "ext://sys.stdout"
+            }
+        },
+        "formatters": {
+            "brief": {
+                "format": "%(levelname)s %(name)s %(message)-30s"
+            },
+            "custom": {
+                "format": "%(asctime)-15s %(levelname)s %(name)s %(message)s"
+            }
+        },
+        "root": {
+            "handlers": [
+                "console"
+            ],
+            "level": "ERROR"
+        },
+        "version": 1,
+        "loggers": {
+            "moon": {
+                "handlers": [
+                    "console",
+                    "file"
+                ],
+                "propagate": False,
+                "level": "DEBUG"
+            }
+        }
+    },
+    "slave": {
+        "name": None,
+        "master": {
+            "url": None,
+            "login": None,
+            "password": None
+        }
+    },
+    "docker": {
+        "url": "tcp://172.88.88.1:2376",
+        "network": "moon"
+    },
+    "database": {
+        "url": "sqlite:///database.db",
+        # "url": "mysql+pymysql://moon:p4sswOrd1@db/moon",
+        "driver": "sql"
+    },
+    "messenger": {
+        "url": "rabbit://moon:p4sswOrd1@messenger:5672/moon"
+    }
+}
+
+
+@pytest.fixture
+def db():
+    return CONF['database']
+
+
+@pytest.fixture(autouse=True)
+def set_consul_and_db(monkeypatch):
+    """ Modify the response from Requests module
+    """
+    with requests_mock.Mocker(real_http=True) as m:
+        mock_components.register_components(m)
+        mock_keystone.register_keystone(m)
+
+        from python_moondb.db_manager import init_engine, main
+        engine = init_engine()
+        main("upgrade", logging.getLogger("db_manager"), engine)
+        yield m
+        os.unlink(CONF['database']['url'].replace("sqlite:///", ""))
+
+
diff --git a/old/python_moondb/tests/unit_python/helpers/__init__.py b/old/python_moondb/tests/unit_python/helpers/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/__init__.py
diff --git a/old/python_moondb/tests/unit_python/helpers/assignment_helper.py b/old/python_moondb/tests/unit_python/helpers/assignment_helper.py
new file mode 100644
index 00000000..22a56e38
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/assignment_helper.py
@@ -0,0 +1,49 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+def get_action_assignments(policy_id, action_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_action_assignments("", policy_id, action_id, category_id)
+
+
+def add_action_assignment(policy_id, action_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_action_assignment("", policy_id, action_id, category_id, data_id)
+
+
+def delete_action_assignment(policy_id, action_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_action_assignment("", policy_id, action_id, category_id, data_id)
+
+
+def get_object_assignments(policy_id, object_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_object_assignments("", policy_id, object_id, category_id)
+
+
+def add_object_assignment(policy_id, object_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_object_assignment("", policy_id, object_id, category_id, data_id)
+
+
+def delete_object_assignment(policy_id, object_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_object_assignment("", policy_id, object_id, category_id, data_id)
+
+
+def get_subject_assignments(policy_id, subject_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_subject_assignments("", policy_id, subject_id, category_id)
+
+
+def add_subject_assignment(policy_id, subject_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_subject_assignment("", policy_id, subject_id, category_id, data_id)
+
+
+def delete_subject_assignment(policy_id, subject_id, category_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_subject_assignment("", policy_id, subject_id, category_id, data_id)
+
diff --git a/old/python_moondb/tests/unit_python/helpers/category_helper.py b/old/python_moondb/tests/unit_python/helpers/category_helper.py
new file mode 100644
index 00000000..55e95d91
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/category_helper.py
@@ -0,0 +1,54 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+def add_subject_category(cat_id=None, value=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.add_subject_category(user_id=None, category_id=cat_id, value=value)
+    return category
+
+
+def get_subject_category(cat_id=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.get_subject_categories(user_id=None, category_id=cat_id)
+    return category
+
+
+def add_object_category(cat_id=None, value=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.add_object_category(user_id=None, category_id=cat_id, value=value)
+    return category
+
+
+def get_object_category(cat_id=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.get_object_categories(user_id=None, category_id=cat_id)
+    return category
+
+
+def add_action_category(cat_id=None, value=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.add_action_category(user_id=None, category_id=cat_id, value=value)
+    return category
+
+
+def get_action_category(cat_id=None):
+    from python_moondb.core import ModelManager
+    category = ModelManager.get_action_categories(user_id=None, category_id=cat_id)
+    return category
+
+
+def delete_subject_category(category_id=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.delete_subject_category("", category_id=category_id)
+
+
+def delete_object_category(category_id=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.delete_object_category("", category_id=category_id)
+
+
+def delete_action_category(category_id=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.delete_action_category("", category_id=category_id)
diff --git a/old/python_moondb/tests/unit_python/helpers/data_helper.py b/old/python_moondb/tests/unit_python/helpers/data_helper.py
new file mode 100644
index 00000000..8a8238f5
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/data_helper.py
@@ -0,0 +1,98 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+def get_action_data(policy_id, data_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_action_data("", policy_id, data_id, category_id)
+
+
+def add_action_data(policy_id, data_id=None, category_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_action_data("", policy_id, data_id, category_id, value)
+
+
+def delete_action_data(policy_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_action_data("",policy_id=policy_id, data_id=data_id)
+
+
+def get_object_data(policy_id, data_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_object_data("", policy_id, data_id, category_id)
+
+
+def add_object_data(policy_id, data_id=None, category_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_object_data("", policy_id, data_id, category_id, value)
+
+
+def delete_object_data(policy_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_object_data("", policy_id=policy_id, data_id=data_id)
+
+
+def get_subject_data(policy_id, data_id=None, category_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_subject_data("", policy_id, data_id, category_id)
+
+
+def add_subject_data(policy_id, data_id=None, category_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.set_subject_data("", policy_id, data_id, category_id, value)
+
+
+def delete_subject_data(policy_id, data_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_subject_data("", policy_id=policy_id, data_id=data_id)
+
+
+def get_actions(policy_id, perimeter_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_actions("", policy_id, perimeter_id)
+
+
+def add_action(policy_id, perimeter_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_action("", policy_id, perimeter_id, value)
+
+
+def delete_action(policy_id, perimeter_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_action("", policy_id, perimeter_id)
+
+
+def get_objects(policy_id, perimeter_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_objects("", policy_id, perimeter_id)
+
+
+def add_object(policy_id, perimeter_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_object("", policy_id, perimeter_id, value)
+
+
+def delete_object(policy_id, perimeter_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_object("", policy_id, perimeter_id)
+
+
+def get_subjects(policy_id, perimeter_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_subjects("", policy_id, perimeter_id)
+
+
+def add_subject(policy_id, perimeter_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.add_subject("", policy_id, perimeter_id, value)
+
+
+def delete_subject(policy_id, perimeter_id):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_subject("", policy_id, perimeter_id)
+
+
+def get_available_metadata(policy_id):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_available_metadata("", policy_id)
diff --git a/old/python_moondb/tests/unit_python/helpers/meta_rule_helper.py b/old/python_moondb/tests/unit_python/helpers/meta_rule_helper.py
new file mode 100644
index 00000000..87af250a
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/meta_rule_helper.py
@@ -0,0 +1,48 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from helpers import mock_data
+
+
+def update_meta_rule(meta_rule_id, value=None):
+    from python_moondb.core import ModelManager
+    if not value:
+        action_category_id = mock_data.create_action_category("action_category_id1")
+        subject_category_id = mock_data.create_subject_category("subject_category_id1")
+        object_category_id = mock_data.create_object_category("object_category_id1")
+        value = {
+            "name": "MLS_meta_rule",
+            "description": "test",
+            "subject_categories": [subject_category_id],
+            "object_categories": [object_category_id],
+            "action_categories": [action_category_id]
+        }
+    return ModelManager.update_meta_rule(user_id=None, meta_rule_id=meta_rule_id, value=value)
+
+
+def add_meta_rule(meta_rule_id=None, value=None):
+    from python_moondb.core import ModelManager
+    if not value:
+        action_category_id = mock_data.create_action_category("action_category_id1")
+        subject_category_id = mock_data.create_subject_category("subject_category_id1")
+        object_category_id = mock_data.create_object_category("object_category_id1")
+        value = {
+            "name": "MLS_meta_rule",
+            "description": "test",
+            "subject_categories": [subject_category_id],
+            "object_categories": [object_category_id],
+            "action_categories": [action_category_id]
+        }
+    return ModelManager.add_meta_rule(user_id=None, meta_rule_id=meta_rule_id, value=value)
+
+
+def get_meta_rules(meta_rule_id=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.get_meta_rules(user_id=None, meta_rule_id=meta_rule_id)
+
+
+def delete_meta_rules(meta_rule_id=None):
+    from python_moondb.core import ModelManager
+    ModelManager.delete_meta_rule(user_id=None, meta_rule_id=meta_rule_id)
diff --git a/old/python_moondb/tests/unit_python/helpers/mock_data.py b/old/python_moondb/tests/unit_python/helpers/mock_data.py
new file mode 100644
index 00000000..0d65ea02
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/mock_data.py
@@ -0,0 +1,156 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from .category_helper import *
+from .policy_helper import *
+from .data_helper import *
+from .model_helper import *
+from .meta_rule_helper import *
+from uuid import uuid4
+
+
+def create_subject_category(name):
+    subject_category = add_subject_category(
+        value={"name": name, "description": "description 1"})
+    return list(subject_category.keys())[0]
+
+
+def create_object_category(name):
+    object_category = add_object_category(
+        value={"name": name, "description": "description 1"})
+    return list(object_category.keys())[0]
+
+
+def create_action_category(name):
+    action_category = add_action_category(
+        value={"name": name, "description": "description 1"})
+    return list(action_category.keys())[0]
+
+
+def create_model(meta_rule_id, model_name="test_model"):
+    value = {
+        "name": model_name,
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+
+    }
+    return value
+
+
+def create_policy(model_id, policy_name="policy_1"):
+    value = {
+        "name": policy_name,
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    return value
+
+
+def create_pdp(policies_ids):
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": policies_ids,
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    return value
+
+
+def create_new_policy(subject_category_name="subjectCategory", object_category_name="objectCategory",
+                      action_category_name="actionCategory",
+                      model_name="test_model", policy_name="policy_name",
+                      meta_rule_name="meta_rule_"):
+    if policy_name == "policy_name":
+        policy_name = "policy_name_" + uuid4().hex
+
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = create_new_meta_rule(
+        subject_category_name=subject_category_name + uuid4().hex,
+        object_category_name=object_category_name + uuid4().hex,
+        action_category_name=action_category_name + uuid4().hex,
+        meta_rule_name=meta_rule_name + uuid4().hex
+    )
+    model = add_model(value=create_model(meta_rule_id, model_name))
+    model_id = list(model.keys())[0]
+    value = create_policy(model_id, policy_name)
+    policy = add_policies(value=value)
+    assert policy
+    policy_id = list(policy.keys())[0]
+    return subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id
+
+
+def create_new_meta_rule(subject_category_name="subject_category" + uuid4().hex,
+                         object_category_name="object_category" + uuid4().hex,
+                         action_category_name="action_category" + uuid4().hex,
+                         meta_rule_name="meta_rule" + uuid4().hex):
+    from python_moondb.core import ModelManager
+
+    subject_category_id = create_subject_category(subject_category_name)
+    object_category_id = create_object_category(object_category_name)
+    action_category_id = create_action_category(action_category_name)
+    value = {"name": meta_rule_name,
+             "algorithm": "name of the meta rule algorithm",
+             "subject_categories": [subject_category_id],
+             "object_categories": [object_category_id],
+             "action_categories": [action_category_id]
+             }
+    # meta_rule = add_meta_rule(value=value)
+    meta_rule = ModelManager.add_meta_rule(user_id=None, meta_rule_id=None, value=value)
+    return subject_category_id, object_category_id, action_category_id, list(meta_rule.keys())[0]
+
+
+def create_subject(policy_id):
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    subject = add_subject(policy_id=policy_id, value=value)
+    return list(subject.keys())[0]
+
+
+def create_object(policy_id):
+    value = {
+        "name": "testobject",
+        "description": "test",
+    }
+    object = add_object(policy_id=policy_id, value=value)
+    return list(object.keys())[0]
+
+
+def create_action(policy_id):
+    value = {
+        "name": "testaction",
+        "description": "test",
+    }
+    action = add_action(policy_id=policy_id, value=value)
+    return list(action.keys())[0]
+
+
+def create_subject_data(policy_id, category_id):
+    value = {
+        "name": uuid4().hex,
+        "description": {uuid4().hex: "", uuid4().hex: "", uuid4().hex: ""},
+    }
+    subject_data = add_subject_data(policy_id=policy_id, category_id=category_id, value=value).get('data')
+    assert subject_data
+    return list(subject_data.keys())[0]
+
+
+def create_object_data(policy_id, category_id):
+    value = {
+        "name": uuid4().hex,
+        "description": {uuid4().hex: "", uuid4().hex: "", uuid4().hex: ""},
+    }
+    object_data = add_object_data(policy_id=policy_id, category_id=category_id, value=value).get('data')
+    return list(object_data.keys())[0]
+
+
+def create_action_data(policy_id, category_id):
+    value = {
+        "name": uuid4().hex,
+        "description": {uuid4().hex: "", uuid4().hex: "", uuid4().hex: ""},
+    }
+    action_data = add_action_data(policy_id=policy_id, category_id=category_id, value=value).get('data')
+    return list(action_data.keys())[0]
diff --git a/old/python_moondb/tests/unit_python/helpers/model_helper.py b/old/python_moondb/tests/unit_python/helpers/model_helper.py
new file mode 100644
index 00000000..98a6271d
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/model_helper.py
@@ -0,0 +1,47 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+from helpers import mock_data
+from uuid import  uuid4
+
+def get_models(model_id=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.get_models(user_id=None, model_id=model_id)
+
+
+def add_model(model_id=None, value=None):
+    from python_moondb.core import ModelManager
+    if not value:
+        subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule()
+        name = "MLS" if model_id is None else "MLS " + model_id
+        value = {
+            "name": name,
+            "description": "test",
+            "meta_rules": [meta_rule_id]
+        }
+    return ModelManager.add_model(user_id=None, model_id=model_id, value=value)
+
+
+def delete_models(uuid=None, name=None):
+    from python_moondb.core import ModelManager
+    if not uuid:
+        for model_id, model_value in get_models():
+            if name == model_value['name']:
+                uuid = model_id
+                break
+    ModelManager.delete_model(user_id=None, model_id=uuid)
+
+
+def delete_all_models():
+    from python_moondb.core import ModelManager
+    models_values = get_models()
+    print(models_values)
+    for model_id, model_value in models_values.items():
+        ModelManager.delete_model(user_id=None, model_id=model_id)
+
+
+def update_model(model_id=None, value=None):
+    from python_moondb.core import ModelManager
+    return ModelManager.update_model(user_id=None, model_id=model_id, value=value)
diff --git a/old/python_moondb/tests/unit_python/helpers/pdp_helper.py b/old/python_moondb/tests/unit_python/helpers/pdp_helper.py
new file mode 100644
index 00000000..3d169b06
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/pdp_helper.py
@@ -0,0 +1,23 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+def update_pdp(pdp_id, value):
+    from python_moondb.core import PDPManager
+    return PDPManager.update_pdp("", pdp_id, value)
+
+
+def delete_pdp(pdp_id):
+    from python_moondb.core import PDPManager
+    PDPManager.delete_pdp("", pdp_id)
+
+
+def add_pdp(pdp_id=None, value=None):
+    from python_moondb.core import PDPManager
+    return PDPManager.add_pdp("", pdp_id, value)
+
+
+def get_pdp(pdp_id=None):
+    from python_moondb.core import PDPManager
+    return PDPManager.get_pdp("", pdp_id)
diff --git a/old/python_moondb/tests/unit_python/helpers/policy_helper.py b/old/python_moondb/tests/unit_python/helpers/policy_helper.py
new file mode 100644
index 00000000..93d81c62
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/helpers/policy_helper.py
@@ -0,0 +1,72 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+from  helpers import mock_data as mock_data
+from helpers import meta_rule_helper
+
+def get_policies():
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_policies("admin")
+
+
+def add_policies(policy_id=None, value=None):
+    from python_moondb.core import PolicyManager
+    if not value:
+        value = {
+            "name": "test_policy",
+            "model_id": "",
+            "genre": "authz",
+            "description": "test",
+        }
+    return PolicyManager.add_policy("admin", policy_id=policy_id, value=value)
+
+
+def delete_policies(uuid=None, name=None):
+    from python_moondb.core import PolicyManager
+    if not uuid:
+        for policy_id, policy_value in get_policies():
+            if name == policy_value['name']:
+                uuid = policy_id
+                break
+    PolicyManager.delete_policy("admin", uuid)
+
+
+def update_policy(policy_id, value):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.update_policy("admin", policy_id, value)
+
+
+def get_policy_from_meta_rules(meta_rule_id):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_policy_from_meta_rules("admin", meta_rule_id)
+
+
+def get_rules(policy_id=None, meta_rule_id=None, rule_id=None):
+    from python_moondb.core import PolicyManager
+    return PolicyManager.get_rules("", policy_id, meta_rule_id, rule_id)
+
+
+def add_rule(policy_id, meta_rule_id, value=None):
+    from python_moondb.core import PolicyManager
+    if not value:
+        meta_rule = meta_rule_helper.get_meta_rules(meta_rule_id)
+        sub_cat_id = meta_rule[meta_rule_id]['subject_categories'][0]
+        ob_cat_id = meta_rule[meta_rule_id]['object_categories'][0]
+        act_cat_id = meta_rule[meta_rule_id]['action_categories'][0]
+
+        subject_data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=sub_cat_id)
+        object_data_id = mock_data.create_object_data(policy_id=policy_id, category_id=ob_cat_id)
+        action_data_id = mock_data.create_action_data(policy_id=policy_id, category_id=act_cat_id)
+
+        value = {
+            "rule": (subject_data_id, object_data_id, action_data_id),
+            "instructions": ({"decision": "grant"}),
+            "enabled": "",
+        }
+    return PolicyManager.add_rule("", policy_id, meta_rule_id, value)
+
+
+def delete_rule(policy_id=None, rule_id=None):
+    from python_moondb.core import PolicyManager
+    PolicyManager.delete_rule("", policy_id, rule_id)
diff --git a/old/python_moondb/tests/unit_python/mock_components.py b/old/python_moondb/tests/unit_python/mock_components.py
new file mode 100644
index 00000000..a0319e1a
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/mock_components.py
@@ -0,0 +1,27 @@
+import utilities
+
+COMPONENTS = (
+    "logging",
+    "openstack/keystone",
+    "database",
+    "slave",
+    "components/manager",
+    "components/orchestrator",
+    "components/interface",
+)
+
+
+def register_components(m):
+    for component in COMPONENTS:
+        m.register_uri(
+            'GET', 'http://consul:8500/v1/kv/{}'.format(component),
+            json=[{'Key': component, 'Value': utilities.get_b64_conf(component)}]
+        )
+
+    m.register_uri(
+        'GET', 'http://consul:8500/v1/kv/components?recurse=true',
+        json=[
+            {"Key": key, "Value": utilities.get_b64_conf(key)} for key in COMPONENTS
+            ],
+        # json={'Key': "components", 'Value': get_b64_conf("components")}
+    )
\ No newline at end of file
diff --git a/old/python_moondb/tests/unit_python/mock_keystone.py b/old/python_moondb/tests/unit_python/mock_keystone.py
new file mode 100644
index 00000000..3f262538
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/mock_keystone.py
@@ -0,0 +1,33 @@
+def register_keystone(m):
+    m.register_uri(
+        'POST', 'http://keystone:5000/v3/auth/tokens',
+        headers={'X-Subject-Token': "111111111"}
+    )
+    m.register_uri(
+        'DELETE', 'http://keystone:5000/v3/auth/tokens',
+        headers={'X-Subject-Token': "111111111"}
+    )
+    m.register_uri(
+        'POST', 'http://keystone:5000/v3/users?name=testuser&domain_id=default',
+        json={"users": {}}
+    )
+    m.register_uri(
+        'GET', 'http://keystone:5000/v3/users?name=testuser&domain_id=default',
+        json={"users": {}}
+    )
+    m.register_uri(
+        'POST', 'http://keystone:5000/v3/users/',
+        json={"users": [{
+            "id": "1111111111111"
+        }]}
+    )
+    m.register_uri(
+        'POST', 'http://keystone:5000/v3/projects/',
+        json={
+            "description": "test_project",
+            "domain_id": ['domain_id_1'],
+            "enabled": True,
+            "is_domain": False,
+            "name": 'project_1'
+        }
+    )
diff --git a/old/python_moondb/tests/unit_python/models/__init__.py b/old/python_moondb/tests/unit_python/models/__init__.py
new file mode 100755
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/models/__init__.py
diff --git a/old/python_moondb/tests/unit_python/models/test_categories.py b/old/python_moondb/tests/unit_python/models/test_categories.py
new file mode 100644
index 00000000..39dc4c71
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/models/test_categories.py
@@ -0,0 +1,111 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import pytest
+import logging
+from python_moonutilities.exceptions import *
+from helpers import category_helper
+
+logger = logging.getLogger("moon.db.tests.models.test_categories")
+
+
+def test_add_subject_category_twice():
+    category = category_helper.add_subject_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(category.keys())[0]
+    assert category is not None
+    with pytest.raises(SubjectCategoryExisting):
+        category_helper.add_subject_category(category_id,
+                                             value={"name": "category name",
+                                                    "description": "description 2"})
+
+
+def test_add_subject_category_name_space():
+    with pytest.raises(CategoryNameInvalid) as exp:
+        category = category_helper.add_subject_category(value={"name": " ", "description":
+            "description 1"})
+    assert exp.value.code == 400
+    assert exp.value.description == 'The given category name is invalid.'
+
+
+def test_get_subject_categories():
+    added_category = category_helper.add_subject_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(added_category.keys())[0]
+    subject_category = category_helper.get_subject_category(category_id)
+    assert subject_category == added_category
+
+
+def test_get_subject_categories_with_invalid_id():
+    category_id = "invalid_id"
+    subject_category = category_helper.get_subject_category(category_id)
+    assert len(subject_category) == 0
+
+
+def test_add_object_category_twice():
+    category = category_helper.add_object_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(category.keys())[0]
+    assert category is not None
+    with pytest.raises(ObjectCategoryExisting):
+        category_helper.add_object_category(category_id,
+                                            value={"name": "category name",
+                                                   "description": "description 2"})
+
+
+def test_add_object_category_name_space():
+    with pytest.raises(CategoryNameInvalid) as exp:
+        category = category_helper.add_object_category(value={"name": " ", "description":
+            "description 1"})
+    assert exp.value.code == 400
+    assert exp.value.description == 'The given category name is invalid.'
+
+
+def test_get_object_categories():
+    added_category = category_helper.add_object_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(added_category.keys())[0]
+    object_category = category_helper.get_object_category(category_id)
+    assert object_category == added_category
+
+
+def test_get_object_categories_with_invalid_id():
+    category_id = "invalid_id"
+    object_category = category_helper.get_object_category(category_id)
+    assert len(object_category) == 0
+
+
+def test_add_action_category_twice():
+    category = category_helper.add_action_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(category.keys())[0]
+    assert category is not None
+    with pytest.raises(ActionCategoryExisting) as exp_info:
+        category_helper.add_action_category(category_id,
+                                            value={"name": "category name",
+                                                   "description": "description 2"})
+    assert str(exp_info.value)=='409: Action Category Existing'
+
+
+def test_add_action_category_name_space():
+    with pytest.raises(CategoryNameInvalid) as exp:
+        category = category_helper.add_action_category(value={"name": " ", "description":
+            "description 1"})
+    assert exp.value.code == 400
+    assert exp.value.description == 'The given category name is invalid.'
+
+
+def test_get_action_categories():
+    added_category = category_helper.add_action_category(
+        value={"name": "category name", "description": "description 1"})
+    category_id = list(added_category.keys())[0]
+    action_category = category_helper.get_action_category(category_id)
+    assert action_category == added_category
+
+
+def test_get_action_categories_with_invalid_id():
+    category_id = "invalid_id"
+    action_category = category_helper.get_action_category(category_id)
+    assert len(action_category) == 0
diff --git a/old/python_moondb/tests/unit_python/models/test_meta_rules.py b/old/python_moondb/tests/unit_python/models/test_meta_rules.py
new file mode 100644
index 00000000..3b2b5b0e
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/models/test_meta_rules.py
@@ -0,0 +1,403 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import pytest
+from helpers import meta_rule_helper
+from helpers import policy_helper
+import helpers.mock_data as mock_data
+import helpers.model_helper as model_helper
+from python_moonutilities.exceptions import *
+from uuid import uuid4
+
+
+def test_update_not_exist_meta_rule_error(db):
+    # set not existing meta rule and expect to raise and error
+    with pytest.raises(MetaRuleUnknown) as exception_info:
+        meta_rule_helper.update_meta_rule(meta_rule_id=None)
+    assert str(exception_info.value) == '400: Meta Rule Unknown'
+
+
+def test_update_meta_rule_connected_with_policy_and_rule():
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+
+    value = {
+        "rule": (subject_data_id, object_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    rules = policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert rules
+    assert len(rules) == 1
+
+    action_category_id = mock_data.create_action_category("action_category_id2")
+    subject_category_id = mock_data.create_subject_category("subject_category_id2")
+    object_category_id = mock_data.create_object_category("object_category_id2")
+
+    updated_value = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    with pytest.raises(MetaRuleUpdateError) as exception_info:
+        updated_meta_rule = meta_rule_helper.update_meta_rule(meta_rule_id, updated_value)
+    assert str(exception_info.value) == '400: Meta_Rule Update Error'
+
+
+def test_update_meta_rule_connected_with_policy(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    action_category_id = mock_data.create_action_category("action_category_id2")
+    subject_category_id = mock_data.create_subject_category("subject_category_id2")
+    object_category_id = mock_data.create_object_category("object_category_id2")
+    value = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value)
+    assert isinstance(meta_rules, dict)
+    assert meta_rules
+    assert len(meta_rules) is 1
+    meta_rule_id = list(meta_rules.keys())[0]
+    for key in (
+    "name", "description", "subject_categories", "object_categories", "action_categories"):
+        assert key in meta_rules[meta_rule_id]
+        assert meta_rules[meta_rule_id][key] == value[key]
+
+
+def test_add_new_meta_rule_success(db):
+    action_category_id = mock_data.create_action_category("action_category_id1")
+    subject_category_id = mock_data.create_subject_category("subject_category_id1")
+    object_category_id = mock_data.create_object_category("object_category_id1")
+    value = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value)
+    assert isinstance(meta_rules, dict)
+    assert meta_rules
+    assert len(meta_rules) is 1
+    meta_rule_id = list(meta_rules.keys())[0]
+    for key in (
+    "name", "description", "subject_categories", "object_categories", "action_categories"):
+        assert key in meta_rules[meta_rule_id]
+        assert meta_rules[meta_rule_id][key] == value[key]
+
+
+def test_meta_rule_with_blank_name(db):
+    action_category_id = mock_data.create_action_category(uuid4().hex)
+    subject_category_id = mock_data.create_subject_category(uuid4().hex)
+    object_category_id = mock_data.create_object_category(uuid4().hex)
+    value = {
+        "name": "",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    with pytest.raises(MetaRuleContentError) as exception_info:
+        meta_rule_helper.add_meta_rule(value=value)
+    assert str(exception_info.value) == '400: Meta Rule Error'
+
+
+def test_update_meta_rule_success(db):
+    # arrange
+    meta_rules = meta_rule_helper.add_meta_rule()
+    meta_rule_id = list(meta_rules.keys())[0]
+    action_category_id = mock_data.create_action_category("action_category_id2")
+    subject_category_id = mock_data.create_subject_category("subject_category_id2")
+    object_category_id = mock_data.create_object_category("object_category_id2")
+    updated_value = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    # action
+    updated_meta_rule = meta_rule_helper.update_meta_rule(meta_rule_id, updated_value)
+    # assert
+    updated_meta_rule_id = list(updated_meta_rule.keys())[0]
+    assert updated_meta_rule_id == meta_rule_id
+    assert updated_meta_rule[updated_meta_rule_id]["subject_categories"] == updated_value[
+        "subject_categories"]
+
+
+def test_update_meta_rule_with_existed_categories_combination(db):
+    action_category_id1 = mock_data.create_action_category(uuid4().hex)
+    subject_category_id1 = mock_data.create_subject_category(uuid4().hex)
+    object_category_id1 = mock_data.create_object_category(uuid4().hex)
+    meta_rule_name1=uuid4().hex
+    value1 = {
+        "name": meta_rule_name1,
+        "description": "test",
+        "subject_categories": [subject_category_id1],
+        "object_categories": [object_category_id1],
+        "action_categories": [action_category_id1]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value1)
+
+    action_category_id2 = mock_data.create_action_category(uuid4().hex)
+    subject_category_id2 = mock_data.create_subject_category(uuid4().hex)
+    object_category_id2 = mock_data.create_object_category(uuid4().hex)
+    meta_rule_name2 = uuid4().hex
+    value2 = {
+        "name": meta_rule_name2,
+        "description": "test",
+        "subject_categories": [subject_category_id2],
+        "object_categories": [object_category_id2],
+        "action_categories": [action_category_id2]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value2)
+    meta_rule_id2 = list(meta_rules.keys())[0]
+    value1['name']=value2['name']
+    with pytest.raises(MetaRuleExisting) as exception_info:
+         updated_meta_rule = meta_rule_helper.update_meta_rule(meta_rule_id2, value1)
+    assert str(exception_info.value) == '409: Meta Rule Existing'
+    assert exception_info.value.description=="Same categories combination existed"
+
+
+def test_update_meta_rule_with_different_categories_combination_but_same_data(db):
+    action_category_id1 = mock_data.create_action_category(uuid4().hex)
+    subject_category_id1 = mock_data.create_subject_category(uuid4().hex)
+    object_category_id1 = mock_data.create_object_category(uuid4().hex)
+    meta_rule_name1=uuid4().hex
+    value1 = {
+        "name": meta_rule_name1,
+        "description": "test",
+        "subject_categories": [subject_category_id1],
+        "object_categories": [object_category_id1],
+        "action_categories": [action_category_id1]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value1)
+
+    action_category_id2 = mock_data.create_action_category(uuid4().hex)
+    subject_category_id2 = mock_data.create_subject_category(uuid4().hex)
+    object_category_id2 = mock_data.create_object_category(uuid4().hex)
+    meta_rule_name2 = uuid4().hex
+    value2 = {
+        "name": meta_rule_name2,
+        "description": "test",
+        "subject_categories": [subject_category_id2],
+        "object_categories": [object_category_id2],
+        "action_categories": [action_category_id2]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value2)
+    meta_rule_id2 = list(meta_rules.keys())[0]
+    value1['name']=value2['name']
+    value1['object_categories']+=[object_category_id1]
+    updated_meta_rule = meta_rule_helper.update_meta_rule(meta_rule_id2, value1)
+    assert meta_rule_id2 in updated_meta_rule
+
+
+def test_add_existing_meta_rule_error(db):
+    action_category_id = mock_data.create_action_category("action_category_id3")
+    subject_category_id = mock_data.create_subject_category("subject_category_id3")
+    object_category_id = mock_data.create_object_category("object_category_id3")
+    value = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules = meta_rule_helper.add_meta_rule(value=value)
+    meta_rule_id = list(meta_rules.keys())[0]
+    with pytest.raises(MetaRuleExisting) as exception_info:
+        meta_rule_helper.add_meta_rule(meta_rule_id=meta_rule_id)
+    assert str(exception_info.value) == '409: Meta Rule Existing'
+
+
+def test_add_meta_rule_with_existing_name_error(db):
+    action_category_id = mock_data.create_action_category(uuid4().hex)
+    subject_category_id = mock_data.create_subject_category(uuid4().hex)
+    object_category_id = mock_data.create_object_category(uuid4().hex)
+    name = uuid4().hex
+    value = {
+        "name": name,
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rule_helper.add_meta_rule(value=value)
+    action_category_id = mock_data.create_action_category(uuid4().hex)
+    subject_category_id = mock_data.create_subject_category(uuid4().hex)
+    object_category_id = mock_data.create_object_category(uuid4().hex)
+    value = {
+        "name": name,
+        "description": 'test',
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    with pytest.raises(MetaRuleExisting) as exception_info:
+        meta_rule_helper.add_meta_rule(value=value)
+    assert str(exception_info.value) == '409: Meta Rule Existing'
+    assert exception_info.value.description == 'The meta rule already exists.'
+
+
+def test_add_meta_rule_with_existing_categories_combination(db):
+    action_category_id = mock_data.create_action_category(uuid4().hex)
+    subject_category_id = mock_data.create_subject_category(uuid4().hex)
+    object_category_id = mock_data.create_object_category(uuid4().hex)
+    name = uuid4().hex
+    value = {
+        "name": name,
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rule_helper.add_meta_rule(value=value)
+    value['name'] = uuid4().hex
+    with pytest.raises(MetaRuleExisting) as exception_info:
+        meta_rule_helper.add_meta_rule(value=value)
+    assert str(exception_info.value) == '409: Meta Rule Existing'
+    assert exception_info.value.description == "Same categories combination existed"
+
+
+def test_add_meta_rule_with_different_categories_combination_but_same_data(db):
+    action_category_id = mock_data.create_action_category(uuid4().hex)
+    subject_category_id = mock_data.create_subject_category(uuid4().hex)
+    object_category_id1 = mock_data.create_object_category(uuid4().hex)
+    object_category_id2 = mock_data.create_object_category(uuid4().hex)
+
+    name1 = uuid4().hex
+    value = {
+        "name": name1,
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id1],
+        "action_categories": [action_category_id]
+    }
+    meta_rule_helper.add_meta_rule(value=value)
+    name2 = uuid4().hex
+    value['name'] = name2
+    value['object_categories'] += [object_category_id2]
+    meta_rules = meta_rule_helper.add_meta_rule(value=value)
+    bool_found_meta_rule = 0
+    for meta_rule_id in meta_rules:
+        if meta_rules[meta_rule_id]['name'] == name2:
+            bool_found_meta_rule = 1
+            break
+    assert bool_found_meta_rule
+
+
+def test_get_meta_rule_success(db):
+    # arrange
+    action_category_id = mock_data.create_action_category("action_type")
+    subject_category_id = mock_data.create_subject_category("user_security_level")
+    object_category_id = mock_data.create_object_category("vm_security_level")
+    values = {}
+    value1 = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules1 = meta_rule_helper.add_meta_rule(value=value1)
+    meta_rule_id1 = list(meta_rules1.keys())[0]
+    values[meta_rule_id1] = value1
+    action_category_id = mock_data.create_action_category("action_type2")
+    subject_category_id = mock_data.create_subject_category("user_security_level2")
+    object_category_id = mock_data.create_object_category("vm_security_level2")
+    value2 = {
+        "name": "rbac_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules2 = meta_rule_helper.add_meta_rule(value=value2)
+    meta_rule_id2 = list(meta_rules2.keys())[0]
+    values[meta_rule_id2] = value2
+
+    # action
+    meta_rules = meta_rule_helper.get_meta_rules()
+    # assert
+    assert isinstance(meta_rules, dict)
+    assert meta_rules
+    assert len(meta_rules) is 2
+    for meta_rule_id in meta_rules:
+        for key in (
+        "name", "description", "subject_categories", "object_categories", "action_categories"):
+            assert key in meta_rules[meta_rule_id]
+            assert meta_rules[meta_rule_id][key] == values[meta_rule_id][key]
+
+
+def test_get_specific_meta_rule_success(db):
+    # arrange
+    added_meta_rules = meta_rule_helper.add_meta_rule()
+    added_meta_rule_id = list(added_meta_rules.keys())[0]
+    # action
+    meta_rules = meta_rule_helper.get_meta_rules(meta_rule_id=added_meta_rule_id)
+    meta_rule_id = list(meta_rules.keys())[0]
+    # assert
+    assert meta_rule_id == added_meta_rule_id
+    for key in (
+    "name", "description", "subject_categories", "object_categories", "action_categories"):
+        assert key in meta_rules[meta_rule_id]
+        assert meta_rules[meta_rule_id][key] == added_meta_rules[added_meta_rule_id][key]
+
+
+def test_delete_meta_rules_success(db):
+    action_category_id = mock_data.create_action_category("action_type")
+    subject_category_id = mock_data.create_subject_category("user_security_level")
+    object_category_id = mock_data.create_object_category("vm_security_level")
+    # arrange
+    value1 = {
+        "name": "MLS_meta_rule",
+        "description": "test",
+        "subject_categories": [subject_category_id],
+        "object_categories": [object_category_id],
+        "action_categories": [action_category_id]
+    }
+    meta_rules1 = meta_rule_helper.add_meta_rule(value=value1)
+    meta_rule_id1 = list(meta_rules1.keys())[0]
+
+    # action
+    meta_rule_helper.delete_meta_rules(meta_rule_id1)
+    # assert
+    meta_rules = meta_rule_helper.get_meta_rules()
+    assert meta_rule_id1 not in meta_rules
+
+
+def test_delete_meta_rules_with_model(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    with pytest.raises(DeleteMetaRuleWithModel) as exception_info:
+        meta_rule_helper.delete_meta_rules(meta_rule_id)
+    assert str(exception_info.value) == '400: Meta rule With Model Error'
+
+
+def test_delete_invalid_meta_rules_error(db):
+    with pytest.raises(MetaRuleUnknown) as exception_info:
+        meta_rule_helper.delete_meta_rules("INVALID_META_RULE_ID")
+    assert str(exception_info.value) == '400: Meta Rule Unknown'
diff --git a/old/python_moondb/tests/unit_python/models/test_models.py b/old/python_moondb/tests/unit_python/models/test_models.py
new file mode 100644
index 00000000..1b171069
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/models/test_models.py
@@ -0,0 +1,622 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import pytest
+from python_moonutilities.exceptions import *
+import logging
+import helpers.mock_data as mock_data
+import helpers.model_helper as model_helper
+import helpers.category_helper as category_helper
+import helpers.policy_helper as policy_helper
+import helpers.assignment_helper as assignment_helper
+from uuid import uuid4
+
+logger = logging.getLogger("moon.db.tests.test_model")
+
+
+def test_get_models_empty(db):
+    # act
+    models = model_helper.get_models()
+    # assert
+    assert isinstance(models, dict)
+    assert not models
+
+
+def test_get_model(db):
+    # prepare
+    model_helper.add_model(model_id="mls_model_id")
+    # act
+    models = model_helper.get_models()
+    # assert
+    assert isinstance(models, dict)
+    assert models  # assert model is not empty
+    assert len(models) is 1
+    model_helper.delete_all_models()
+
+
+def test_get_specific_model(db):
+    # prepare
+    model_helper.add_model(model_id="mls_model_id")
+    # act
+    models = model_helper.get_models(model_id="mls_model_id")
+    # assert
+    assert isinstance(models, dict)
+    assert models  # assert model is not empty
+    assert len(models) is 1
+    model_helper.delete_all_models()
+
+
+def test_add_model(db):
+    # act
+    model = model_helper.add_model()
+    # assert
+    assert isinstance(model, dict)
+    assert model  # assert model is not empty
+    assert len(model) is 1
+    model_helper.delete_all_models()
+
+
+def test_add_same_model_twice(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "model1",
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    # prepare
+    model_helper.add_model(model_id="model_1", value=value)  # add model twice
+    # act
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category2",
+        object_category_name="object_category2",
+        action_category_name="action_category2",
+        meta_rule_name="meta_rule_2")
+    value = {
+        "name": "model2",
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    with pytest.raises(ModelExisting) as exception_info:
+        model_helper.add_model(model_id="model_1", value=value)
+    model_helper.delete_all_models()
+    assert str(exception_info.value) == '409: Model Error'
+
+
+def test_add_model_generate_new_uuid(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id1 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category3",
+        object_category_name="object_category3",
+        action_category_name="action_category3",
+        meta_rule_name="meta_rule_3")
+    model_value1 = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": [meta_rule_id1]
+    }
+    model1 = model_helper.add_model(value=model_value1)
+    subject_category_id, object_category_id, action_category_id, meta_rule_id2 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category4",
+        object_category_name="object_category4",
+        action_category_name="action_category4",
+        meta_rule_name="meta_rule_4")
+    model_value2 = {
+        "name": "rbac",
+        "description": "test",
+        "meta_rules": [meta_rule_id2]
+    }
+    model2 = model_helper.add_model(value=model_value2)
+
+    assert list(model1)[0] != list(model2)[0]
+    model_helper.delete_all_models()
+
+
+def test_add_models(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category5",
+        object_category_name="object_category5",
+        action_category_name="action_category5")
+    model_value1 = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    models = model_helper.add_model(value=model_value1)
+    assert isinstance(models, dict)
+    assert models
+    assert len(models.keys()) == 1
+    model_id = list(models.keys())[0]
+    for key in ("name", "meta_rules", "description"):
+        assert key in models[model_id]
+        assert models[model_id][key] == model_value1[key]
+    model_helper.delete_all_models()
+
+
+def test_add_models_with_same_name_twice(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category5",
+        object_category_name="object_category5",
+        action_category_name="action_category5")
+    model_value1 = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    models = model_helper.add_model(value=model_value1)
+    assert isinstance(models, dict)
+    assert models
+    with pytest.raises(Exception) as exception_info:
+        model_helper.add_model(value=model_value1)
+    model_helper.delete_all_models()
+    assert str(exception_info.value) == '409: Model Error'
+
+def test_add_model_with_existed_meta_rules_list(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id = mock_data.create_new_meta_rule(
+        subject_category_name=uuid4().hex,
+        object_category_name=uuid4().hex,
+        action_category_name=uuid4().hex)
+    model_value1 = {
+        "name": uuid4().hex,
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    models = model_helper.add_model(value=model_value1)
+    assert isinstance(models, dict)
+    assert models
+    model_value1 = {
+        "name": uuid4().hex,
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+    }
+    with pytest.raises(Exception) as exception_info:
+        model_helper.add_model(value=model_value1)
+    model_helper.delete_all_models()
+    assert str(exception_info.value) == '409: Model Error'
+    assert str(exception_info.value.description)=='Meta Rules List Existed in another Model'
+
+
+def test_delete_models(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id1 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category6",
+        object_category_name="object_category6",
+        action_category_name="action_category6",
+        meta_rule_name="meta_rule_6")
+    model_value1 = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": [meta_rule_id1]
+    }
+    model1 = model_helper.add_model(value=model_value1)
+    subject_category_id, object_category_id, action_category_id, meta_rule_id2 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category7",
+        object_category_name="object_category7",
+        action_category_name="action_category7",
+        meta_rule_name="meta_rule_7")
+    model_value2 = {
+        "name": "rbac",
+        "description": "test",
+        "meta_rules": [meta_rule_id2]
+    }
+    model_helper.add_model(value=model_value2)
+
+    id = list(model1)[0]
+    model_helper.delete_models(id)
+    # assert
+    models = model_helper.get_models()
+    assert id not in models
+    model_helper.delete_all_models()
+
+
+def test_update_model(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id1 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category8",
+        object_category_name="object_category8",
+        action_category_name="action_category8",
+        meta_rule_name="meta_rule_8")
+    # prepare
+    model_value = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": [meta_rule_id1]
+    }
+    model = model_helper.add_model(value=model_value)
+    model_id = list(model)[0]
+    subject_category_id, object_category_id, action_category_id, meta_rule_id2 = mock_data.create_new_meta_rule(
+        subject_category_name="subject_category9",
+        object_category_name="object_category9",
+        action_category_name="action_category9",
+        meta_rule_name="meta_rule_9")
+    new_model_value = {
+        "name": "MLS2",
+        "description": "test",
+        "meta_rules": [meta_rule_id2]
+    }
+    # act
+    model_helper.update_model(model_id=model_id, value=new_model_value)
+    # assert
+    model = model_helper.get_models(model_id)
+
+    for key in ("name", "meta_rules", "description"):
+        assert key in model[model_id]
+        assert model[model_id][key] == new_model_value[key]
+    model_helper.delete_all_models()
+
+
+def test_delete_model_assigned_to_policy(db):
+    model_value1 = {
+        "name": "MLS",
+        "description": "test",
+        "meta_rules": []
+    }
+    models = model_helper.add_model(value=model_value1)
+    assert isinstance(models, dict)
+    assert models
+    assert len(models.keys()) == 1
+    model_id = list(models.keys())[0]
+    value = {
+        "name": "test_policy",
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policy_helper.add_policies(value=value)
+    with pytest.raises(DeleteModelWithPolicy) as exception_info:
+        model_helper.delete_models(uuid=model_id)
+    assert str(exception_info.value) == '400: Model With Policy Error'
+
+
+def test_add_subject_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "subject_category",
+        "description": "description subject_category"
+    }
+    subject_category = category_helper.add_subject_category(category_id, value)
+    assert subject_category
+    assert len(subject_category) == 1
+
+
+def test_add_subject_categories_with_existed_name(db):
+    name = uuid4().hex
+    value = {
+        "name": name,
+        "description": "description subject_category"
+    }
+    subject_category = category_helper.add_subject_category(value=value)
+    assert subject_category
+    assert len(subject_category) == 1
+
+    value = {
+        "name": name,
+        "description": "description subject_category"
+    }
+    with pytest.raises(SubjectCategoryExisting) as exception_info:
+        category_helper.add_subject_category(value=value)
+    assert str(exception_info.value) == '409: Subject Category Existing'
+
+
+def test_add_subject_category_with_empty_name(db):
+    category_id = "category_id1"
+    value = {
+        "name": "",
+        "description": "description subject_category"
+    }
+    with pytest.raises(CategoryNameInvalid) as exception_info:
+        category_helper.add_subject_category(category_id, value)
+    assert str(exception_info.value) == '400: Category Name Invalid'
+
+
+def test_add_subject_category_with_same_category_id(db):
+    category_id = "category_id1"
+    value = {
+        "name": "subject_category",
+        "description": "description subject_category"
+    }
+    category_helper.add_subject_category(category_id, value)
+    with pytest.raises(SubjectCategoryExisting) as exception_info:
+        category_helper.add_subject_category(category_id, value)
+    assert str(exception_info.value) == '409: Subject Category Existing'
+
+
+def test_get_subject_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "subject_category",
+        "description": "description subject_category"
+    }
+    category_helper.add_subject_category(category_id, value)
+    subject_category = category_helper.get_subject_category(category_id)
+    assert subject_category
+    assert len(subject_category) == 1
+
+
+def test_delete_subject_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "subject_category",
+        "description": "description subject_category"
+    }
+    category_helper.add_subject_category(category_id, value)
+    subject_category = category_helper.delete_subject_category(category_id)
+    assert not subject_category
+
+
+def test_delete_subject_category_with_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    mock_data.create_subject_data(policy_id, subject_category_id)
+
+    with pytest.raises(DeleteSubjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_subject_category(subject_category_id)
+    assert str(exception_info.value) == '400: Subject Category With Meta Rule Error'
+
+
+def test_delete_subject_category_with_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id, subject_category_id)
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+
+    with pytest.raises(DeleteSubjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_subject_category(subject_category_id)
+    assert str(exception_info.value) == '400: Subject Category With Meta Rule Error'
+
+
+def test_delete_subject_category_with_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id)
+
+    with pytest.raises(DeleteSubjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_subject_category(subject_category_id)
+    assert str(exception_info.value) == '400: Subject Category With Meta Rule Error'
+
+
+def test_delete_subject_category_with_unkown_category_id(db):
+    category_id = "invalid_category_id"
+
+    with pytest.raises(SubjectCategoryUnknown) as exception_info:
+        category_helper.delete_subject_category(category_id)
+    assert str(exception_info.value) == '400: Subject Category Unknown'
+
+
+def test_add_object_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "object_category",
+        "description": "description object_category"
+    }
+    object_category = category_helper.add_object_category(category_id, value)
+    assert object_category
+    assert len(object_category) == 1
+
+
+def test_add_object_categories_with_existed_name(db):
+    name = uuid4().hex
+    value = {
+        "name": name,
+        "description": "description object_category"
+    }
+    object_category = category_helper.add_object_category(value=value)
+    assert object_category
+    assert len(object_category) == 1
+    with pytest.raises(ObjectCategoryExisting) as exception_info:
+        category_helper.add_object_category(value=value)
+    assert str(exception_info.value) == '409: Object Category Existing'
+
+
+def test_add_object_category_with_same_category_id(db):
+    category_id = "category_id1"
+    value = {
+        "name": "object_category",
+        "description": "description object_category"
+    }
+    category_helper.add_object_category(category_id, value)
+    with pytest.raises(ObjectCategoryExisting) as exception_info:
+        category_helper.add_object_category(category_id, value)
+    assert str(exception_info.value) == '409: Object Category Existing'
+
+
+def test_add_object_category_with_empty_name(db):
+    category_id = "category_id1"
+    value = {
+        "name": "",
+        "description": "description object_category"
+    }
+    with pytest.raises(CategoryNameInvalid) as exception_info:
+        category_helper.add_object_category(category_id, value)
+    assert str(exception_info.value) == '400: Category Name Invalid'
+
+
+def test_get_object_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "object_category",
+        "description": "description object_category"
+    }
+    category_helper.add_object_category(category_id, value)
+    object_category = category_helper.get_object_category(category_id)
+    assert object_category
+    assert len(object_category) == 1
+
+
+def test_delete_object_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "object_category",
+        "description": "description object_category"
+    }
+    category_helper.add_object_category(category_id, value)
+    object_category = category_helper.delete_object_category(category_id)
+    assert not object_category
+
+
+def test_delete_object_category_with_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    mock_data.create_subject_data(policy_id, subject_category_id)
+
+    mock_data.create_object_data(policy_id, object_category_id)
+
+    with pytest.raises(DeleteObjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_object_category(object_category_id)
+    assert str(exception_info.value) == '400: Object Category With Meta Rule Error'
+
+
+def test_delete_object_category_with_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id, object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+
+    with pytest.raises(DeleteObjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_object_category(object_category_id)
+    assert str(exception_info.value) == '400: Object Category With Meta Rule Error'
+
+
+def test_delete_object_category_with_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id)
+
+    with pytest.raises(DeleteObjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_object_category(object_category_id)
+    assert str(exception_info.value) == '400: Object Category With Meta Rule Error'
+
+
+def test_delete_object_category_with_unkown_category_id(db):
+    category_id = "invalid_category_id"
+
+    with pytest.raises(ObjectCategoryUnknown) as exception_info:
+        category_helper.delete_object_category(category_id)
+    assert str(exception_info.value) == '400: Object Category Unknown'
+
+
+def test_add_action_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "action_category",
+        "description": "description action_category"
+    }
+    action_category = category_helper.add_action_category(category_id, value)
+    assert action_category
+    assert len(action_category) == 1
+
+
+def test_add_action_categories_with_existed_name(db):
+    name = uuid4().hex
+    value = {
+        "name": name,
+        "description": "description action_category"
+    }
+    action_category = category_helper.add_action_category(value=value)
+    assert action_category
+    assert len(action_category) == 1
+    with pytest.raises(ActionCategoryExisting) as exception_info:
+        category_helper.add_action_category(value=value)
+    assert str(exception_info.value) == '409: Action Category Existing'
+
+
+def test_add_action_category_with_same_category_id(db):
+    category_id = "category_id1"
+    value = {
+        "name": "action_category",
+        "description": "description action_category"
+    }
+    category_helper.add_action_category(category_id, value)
+    with pytest.raises(ActionCategoryExisting) as exception_info:
+        category_helper.add_action_category(category_id, value)
+    assert str(exception_info.value) == '409: Action Category Existing'
+
+
+def test_add_action_category_with_empty_name(db):
+    category_id = "category_id1"
+    value = {
+        "name": "",
+        "description": "description action_category"
+    }
+    with pytest.raises(CategoryNameInvalid) as exception_info:
+        category_helper.add_action_category(category_id, value)
+    assert str(exception_info.value) == '400: Category Name Invalid'
+
+
+def test_get_action_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "action_category",
+        "description": "description action_category"
+    }
+    category_helper.add_action_category(category_id, value)
+    action_category = category_helper.get_action_category(category_id)
+    assert action_category
+    assert len(action_category) == 1
+
+
+def test_delete_action_category(db):
+    category_id = "category_id1"
+    value = {
+        "name": "action_category",
+        "description": "description action_category"
+    }
+    category_helper.add_action_category(category_id, value)
+    action_category = category_helper.delete_action_category(category_id)
+    assert not action_category
+
+
+def test_delete_action_category_with_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    mock_data.create_subject_data(policy_id, subject_category_id)
+
+    mock_data.create_action_data(policy_id, action_category_id)
+
+    with pytest.raises(DeleteActionCategoryWithMetaRule) as exception_info:
+        category_helper.delete_action_category(action_category_id)
+    assert str(exception_info.value) == '400: Action Category With Meta Rule Error'
+
+
+def test_delete_action_category_with_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id, action_category_id)
+    assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+
+    with pytest.raises(DeleteActionCategoryWithMetaRule) as exception_info:
+        category_helper.delete_action_category(action_category_id)
+    assert str(exception_info.value) == '400: Action Category With Meta Rule Error'
+
+
+def test_delete_action_category_with_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id)
+
+    with pytest.raises(DeleteActionCategoryWithMetaRule) as exception_info:
+        category_helper.delete_action_category(action_category_id)
+    assert str(exception_info.value) == '400: Action Category With Meta Rule Error'
+
+
+def test_delete_action_category_with_unkown_category_id(db):
+    category_id = "invalid_category_id"
+
+    with pytest.raises(ActionCategoryUnknown) as exception_info:
+        category_helper.delete_action_category(category_id)
+    assert str(exception_info.value) == '400: Action Category Unknown'
+
+
+def test_delete_data_categories_connected_to_meta_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+    with pytest.raises(DeleteSubjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_subject_category(subject_category_id)
+    assert str(exception_info.value) == '400: Subject Category With Meta Rule Error'
+
+    with pytest.raises(DeleteObjectCategoryWithMetaRule) as exception_info:
+        category_helper.delete_object_category(object_category_id)
+    assert str(exception_info.value) == '400: Object Category With Meta Rule Error'
+
+    with pytest.raises(DeleteActionCategoryWithMetaRule) as exception_info:
+        category_helper.delete_action_category(action_category_id)
+    assert str(exception_info.value) == '400: Action Category With Meta Rule Error'
diff --git a/old/python_moondb/tests/unit_python/policies/__init__.py b/old/python_moondb/tests/unit_python/policies/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/policies/__init__.py
diff --git a/old/python_moondb/tests/unit_python/policies/mock_data.py b/old/python_moondb/tests/unit_python/policies/mock_data.py
new file mode 100644
index 00000000..47fc9f9e
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/policies/mock_data.py
@@ -0,0 +1,74 @@
+import helpers.model_helper as model_helper
+import helpers.meta_rule_helper as meta_rule_helper
+import helpers.policy_helper as policy_helper
+import helpers.category_helper as category_helper
+
+
+def create_meta_rule(meta_rule_name="meta_rule1", category_prefix=""):
+    meta_rule_value = {
+        "name": meta_rule_name,
+        "algorithm": "name of the meta rule algorithm",
+        "subject_categories": [category_prefix + "subject_category_id1",
+                               category_prefix + "subject_category_id2"],
+        "object_categories": [category_prefix + "object_category_id1"],
+        "action_categories": [category_prefix + "action_category_id1"]
+    }
+    return meta_rule_value
+
+
+def create_model(meta_rule_id, model_name="test_model"):
+    value = {
+        "name": model_name,
+        "description": "test",
+        "meta_rules": [meta_rule_id]
+
+    }
+    return value
+
+
+def create_policy(model_id, policy_name="policy_1"):
+    value = {
+        "name": policy_name,
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    return value
+
+
+def create_pdp(pdp_ids):
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": pdp_ids,
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    return value
+
+
+def get_policy_id(model_name="test_model", policy_name="policy_1", meta_rule_name="meta_rule1", category_prefix=""):
+    category_helper.add_subject_category(
+        category_prefix + "subject_category_id1",
+        value={"name": category_prefix + "subject_category_id1",
+               "description": "description 1"})
+    category_helper.add_subject_category(
+        category_prefix + "subject_category_id2",
+        value={"name": category_prefix + "subject_category_id2",
+               "description": "description 1"})
+    category_helper.add_object_category(
+        category_prefix + "object_category_id1",
+        value={"name": category_prefix + "object_category_id1",
+               "description": "description 1"})
+    category_helper.add_action_category(
+        category_prefix + "action_category_id1",
+        value={"name": category_prefix + "action_category_id1",
+               "description": "description 1"})
+    meta_rule = meta_rule_helper.add_meta_rule(value=create_meta_rule(meta_rule_name, category_prefix))
+    meta_rule_id = list(meta_rule.keys())[0]
+    model = model_helper.add_model(value=create_model(meta_rule_id, model_name))
+    model_id = list(model.keys())[0]
+    value = create_policy(model_id, policy_name)
+    policy = policy_helper.add_policies(value=value)
+    assert policy
+    policy_id = list(policy.keys())[0]
+    return policy_id
diff --git a/old/python_moondb/tests/unit_python/policies/test_assignments.py b/old/python_moondb/tests/unit_python/policies/test_assignments.py
new file mode 100755
index 00000000..24a3a7b0
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/policies/test_assignments.py
@@ -0,0 +1,235 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import helpers.mock_data as mock_data
+import helpers.assignment_helper as assignment_helper
+from python_moonutilities.exceptions import *
+import pytest
+
+
+def test_get_action_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+
+    assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+    act_assignments = assignment_helper.get_action_assignments(policy_id, action_id,
+                                                               action_category_id)
+    action_id_1 = list(act_assignments.keys())[0]
+    assert act_assignments[action_id_1]["policy_id"] == policy_id
+    assert act_assignments[action_id_1]["action_id"] == action_id
+    assert act_assignments[action_id_1]["category_id"] == action_category_id
+    assert len(act_assignments[action_id_1].get("assignments")) == 1
+    assert data_id in act_assignments[action_id_1].get("assignments")
+
+
+def test_add_action_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+    action_assignments = assignment_helper.add_action_assignment(policy_id, action_id,
+                                                                 action_category_id, data_id)
+    assert action_assignments
+    action_id_1 = list(action_assignments.keys())[0]
+    assert action_assignments[action_id_1]["policy_id"] == policy_id
+    assert action_assignments[action_id_1]["action_id"] == action_id
+    assert action_assignments[action_id_1]["category_id"] == action_category_id
+    assert len(action_assignments[action_id_1].get("assignments")) == 1
+    assert data_id in action_assignments[action_id_1].get("assignments")
+
+    with pytest.raises(ActionAssignmentExisting) as exception_info:
+        assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+    assert str(exception_info.value) == '409: Action Assignment Existing'
+    assert str(exception_info.value.description) == 'The given action assignment value is existing.'
+
+
+def test_delete_action_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+    assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+    assignment_helper.delete_action_assignment(policy_id, "", "", "")
+    assignments = assignment_helper.get_action_assignments(policy_id, )
+    assert len(assignments) == 1
+
+
+def test_delete_action_assignment_with_invalid_policy_id(db):
+    policy_id = "invalid_id"
+    assignment_helper.delete_action_assignment(policy_id, "", "", "")
+    assignments = assignment_helper.get_action_assignments(policy_id, )
+    assert len(assignments) == 0
+
+
+def test_get_object_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+    obj_assignments = assignment_helper.get_object_assignments(policy_id, object_id,
+                                                               object_category_id)
+    object_id_1 = list(obj_assignments.keys())[0]
+    assert obj_assignments[object_id_1]["policy_id"] == policy_id
+    assert obj_assignments[object_id_1]["object_id"] == object_id
+    assert obj_assignments[object_id_1]["category_id"] == object_category_id
+    assert len(obj_assignments[object_id_1].get("assignments")) == 1
+    assert data_id in obj_assignments[object_id_1].get("assignments")
+
+
+def test_get_object_assignments_by_policy_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+    obj_assignments = assignment_helper.get_object_assignments(policy_id)
+    assert len(obj_assignments) == 1
+
+
+def test_add_object_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    object_assignments = assignment_helper.add_object_assignment(policy_id, object_id,
+                                                                 object_category_id, data_id)
+    assert object_assignments
+    object_id_1 = list(object_assignments.keys())[0]
+    assert object_assignments[object_id_1]["policy_id"] == policy_id
+    assert object_assignments[object_id_1]["object_id"] == object_id
+    assert object_assignments[object_id_1]["category_id"] == object_category_id
+    assert len(object_assignments[object_id_1].get("assignments")) == 1
+    assert data_id in object_assignments[object_id_1].get("assignments")
+
+    with pytest.raises(ObjectAssignmentExisting) as exception_info:
+        assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+    assert str(exception_info.value) == '409: Object Assignment Existing'
+    assert str(exception_info.value.description) == 'The given object assignment value is existing.'
+
+
+def test_delete_object_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+
+    assignment_helper.delete_object_assignment(policy_id, object_id, object_category_id,
+                                               data_id=data_id)
+    assignments = assignment_helper.get_object_assignments(policy_id)
+    assert len(assignments) == 0
+
+
+def test_delete_object_assignment_with_invalid_policy_id(db):
+    policy_id = "invalid_id"
+    assignment_helper.delete_object_assignment(policy_id, "", "", "")
+    assignments = assignment_helper.get_object_assignments(policy_id, )
+    assert len(assignments) == 0
+
+
+def test_get_subject_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+    subj_assignments = assignment_helper.get_subject_assignments(policy_id, subject_id,
+                                                                 subject_category_id)
+    subject_id_1 = list(subj_assignments.keys())[0]
+    assert subj_assignments[subject_id_1]["policy_id"] == policy_id
+    assert subj_assignments[subject_id_1]["subject_id"] == subject_id
+    assert subj_assignments[subject_id_1]["category_id"] == subject_category_id
+    assert len(subj_assignments[subject_id_1].get("assignments")) == 1
+    assert data_id in subj_assignments[subject_id_1].get("assignments")
+
+
+def test_get_subject_assignments_by_policy_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+    subj_assignments = assignment_helper.get_subject_assignments(policy_id)
+    assert len(subj_assignments) == 1
+
+
+def test_add_subject_assignments(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+
+    subject_assignments = assignment_helper.add_subject_assignment(policy_id, subject_id,
+                                                                   subject_category_id, data_id)
+    assert subject_assignments
+    subject_id_1 = list(subject_assignments.keys())[0]
+    assert subject_assignments[subject_id_1]["policy_id"] == policy_id
+    assert subject_assignments[subject_id_1]["subject_id"] == subject_id
+    assert subject_assignments[subject_id_1]["category_id"] == subject_category_id
+    assert len(subject_assignments[subject_id_1].get("assignments")) == 1
+    assert data_id in subject_assignments[subject_id_1].get("assignments")
+
+    with pytest.raises(SubjectAssignmentExisting) as exception_info:
+        assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id,
+                                                 data_id)
+    assert str(exception_info.value) == '409: Subject Assignment Existing'
+    assert str(
+        exception_info.value.description) == 'The given subject assignment value is existing.'
+
+
+def test_delete_subject_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+    assignment_helper.delete_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+    assignments = assignment_helper.get_subject_assignments(policy_id)
+    assert len(assignments) == 0
+
+
+def test_delete_subject_assignment_with_invalid_policy_id(db):
+    policy_id = "invalid_id"
+    assignment_helper.delete_subject_assignment(policy_id, "", "", "")
+    assignments = assignment_helper.get_subject_assignments(policy_id, )
+    assert len(assignments) == 0
diff --git a/old/python_moondb/tests/unit_python/policies/test_data.py b/old/python_moondb/tests/unit_python/policies/test_data.py
new file mode 100755
index 00000000..8ce1ac00
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/policies/test_data.py
@@ -0,0 +1,707 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import helpers.mock_data as mock_data
+import policies.mock_data
+import helpers.data_helper as data_helper
+import helpers.assignment_helper as assignment_helper
+import pytest
+from uuid import uuid4
+import logging
+from python_moonutilities.exceptions import *
+
+logger = logging.getLogger("python_moondb.tests.api.test_data")
+
+
+def test_get_action_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "action-type",
+        "description": {"vm-action": "", "storage-action": "", },
+    }
+    action_data = data_helper.add_action_data(policy_id=policy_id, category_id=action_category_id, value=value)
+    data_id = list(action_data["data"])[0]
+    found_action_data = data_helper.get_action_data(policy_id=policy_id, data_id=data_id,
+                                                    category_id=action_category_id)
+    assert found_action_data
+    assert len(found_action_data[0]["data"]) == 1
+
+
+def test_get_action_data_with_invalid_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    action_data = data_helper.get_action_data(policy_id=policy_id, category_id="invalid")
+    assert len(action_data) == 0
+
+
+def test_add_action_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "action-type",
+        "description": {"vm-action": "", "storage-action": "", },
+    }
+    action_data = data_helper.add_action_data(policy_id=policy_id, category_id=action_category_id, value=value)
+    assert action_data
+    assert len(action_data['data']) == 1
+
+
+def test_add_action_data_duplicate(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "action-type",
+        "description": {"vm-action": "", "storage-action": "", },
+    }
+    action_data = data_helper.add_action_data(policy_id=policy_id, category_id=action_category_id, value=value)
+    with pytest.raises(ActionScopeExisting) as exception_info:
+        action_data = data_helper.add_action_data(policy_id=policy_id, category_id=action_category_id, value=value)
+    assert str(exception_info.value) == '409: Action Scope Existing'
+
+def test_add_action_data_with_invalid_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "action-type",
+        "description": {"vm-action": "", "storage-action": "", },
+    }
+    with pytest.raises(ActionCategoryUnknown) as exception_info:
+        data_helper.add_action_data(policy_id=policy_id, value=value).get('data')
+    assert str(exception_info.value) == '400: Action Category Unknown'
+
+
+def test_delete_action_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    data_helper.get_available_metadata(policy_id)
+    value = {
+        "name": "action-type",
+        "description": {"vm-action": "", "storage-action": "", },
+    }
+    action_data = data_helper.add_action_data(policy_id=policy_id, category_id=action_category_id, value=value)
+    data_id = list(action_data["data"])[0]
+    data_helper.delete_action_data(policy_id=policy_id, data_id=data_id)
+    new_action_data = data_helper.get_action_data(policy_id)
+    assert len(new_action_data[0]['data']) == 0
+
+
+def test_get_object_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "object-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    object_data = data_helper.add_object_data(policy_id=policy_id, category_id=object_category_id, value=value)
+    data_id = list(object_data["data"])[0]
+    found_object_data = data_helper.get_object_data(policy_id=policy_id, data_id=data_id,
+                                                    category_id=object_category_id)
+    assert found_object_data
+    assert len(found_object_data[0]['data']) == 1
+
+
+def test_get_object_data_with_invalid_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    object_data = data_helper.get_object_data(policy_id=policy_id, category_id="invalid")
+    assert len(object_data) == 0
+
+
+def test_add_object_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "object-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    object_data = data_helper.add_object_data(policy_id=policy_id, category_id=object_category_id, value=value).get(
+        'data')
+    assert object_data
+    object_data_id = list(object_data.keys())[0]
+    assert object_data[object_data_id].get('policy_id') == policy_id
+
+
+def test_add_object_data_with_invalid_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "object-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    with pytest.raises(ObjectCategoryUnknown) as exception_info:
+        data_helper.add_object_data(policy_id=policy_id, category_id="invalid", value=value).get('data')
+    assert str(exception_info.value) == '400: Object Category Unknown'
+
+
+def test_add_object_data_duplicate(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "object-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    object_data = data_helper.add_object_data(policy_id=policy_id, category_id=object_category_id, value=value).get(
+        'data')
+    with pytest.raises(ObjectScopeExisting) as exception_info:
+        data_helper.add_object_data(policy_id=policy_id, category_id=object_category_id, value=value).get(
+            'data')
+    assert str(exception_info.value) == '409: Object Scope Existing'
+
+
+def test_delete_object_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "object-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    object_data = data_helper.add_object_data(policy_id=policy_id, category_id=object_category_id, value=value).get(
+        'data')
+    object_data_id = list(object_data.keys())[0]
+    data_helper.delete_object_data(policy_id=object_data[object_data_id].get('policy_id'), data_id=object_data_id)
+    new_object_data = data_helper.get_object_data(policy_id)
+    assert len(new_object_data[0]['data']) == 0
+
+
+def test_get_subject_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id, value=value).get(
+        'data')
+    subject_data_id = list(subject_data.keys())[0]
+    subject_data = data_helper.get_subject_data(policy_id, subject_data_id, subject_category_id)
+    assert subject_data
+    assert len(subject_data[0]['data']) == 1
+
+
+def test_get_subject_data_with_invalid_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id, value=value).get(
+        'data')
+    subject_data_id = list(subject_data.keys())[0]
+    found_subject_data = data_helper.get_subject_data(policy_id, subject_data_id, "invalid")
+    assert len(found_subject_data) == 0
+
+
+def test_add_subject_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id, value=value).get(
+        'data')
+    assert subject_data
+    subject_data_id = list(subject_data.keys())[0]
+    assert subject_data[subject_data_id].get('policy_id') == policy_id
+
+
+def test_add_subject_data_with_no_category_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    with pytest.raises(SubjectCategoryUnknown) as exception_info:
+        data_helper.add_subject_data(policy_id=policy_id, data_id=subject_category_id, value=value).get('data')
+    assert str(exception_info.value) == '400: Subject Category Unknown'
+
+
+def test_add_subject_data_duplicate(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id, value=value).get(
+        'data')
+
+    with pytest.raises(SubjectScopeExisting) as exception_info:
+        subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id,
+                                                    value=value).get('data')
+    assert str(exception_info.value) == '409: Subject Scope Existing'
+
+
+def test_delete_subject_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "subject-security-level",
+        "description": {"low": "", "medium": "", "high": ""},
+    }
+    subject_data = data_helper.add_subject_data(policy_id=policy_id, category_id=subject_category_id, value=value).get(
+        'data')
+    subject_data_id = list(subject_data.keys())[0]
+    data_helper.delete_subject_data(policy_id=subject_data[subject_data_id].get('policy_id'), data_id=subject_data_id)
+    new_subject_data = data_helper.get_subject_data(policy_id)
+    assert len(new_subject_data[0]['data']) == 0
+
+
+def test_get_actions(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_action",
+        "description": "test",
+    }
+    data_helper.add_action(policy_id=policy_id, value=value)
+    actions = data_helper.get_actions(policy_id, )
+    assert actions
+    assert len(actions) == 1
+    action_id = list(actions.keys())[0]
+    assert actions[action_id].get('policy_list')[0] == policy_id
+
+
+def test_add_action(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_action",
+        "description": "test",
+    }
+    action = data_helper.add_action(policy_id=policy_id, value=value)
+    assert action
+    action_id = list(action.keys())[0]
+    assert len(action[action_id].get('policy_list')) == 1
+
+
+def test_add_action_twice(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_action",
+        "description": "test",
+    }
+    data_helper.add_action(policy_id=policy_id, value=value)
+    with pytest.raises(PolicyExisting) as exception_info:
+        data_helper.add_action(policy_id=policy_id, value=value)
+    assert str(exception_info.value) == '409: Policy Already Exists'
+
+
+def test_add_action_blank_name(db):
+    policy_id = policies.mock_data.get_policy_id()
+    value = {
+        "name": "",
+        "description": "test",
+    }
+    with pytest.raises(PerimeterContentError) as exception_info:
+        data_helper.add_action(policy_id=policy_id, value=value)
+    assert str(exception_info.value) == '400: Perimeter content is invalid.'
+
+
+def test_add_action_with_name_space(db):
+    policy_id = policies.mock_data.get_policy_id()
+    value = {
+        "name": "   ",
+        "description": "test",
+    }
+    with pytest.raises(PerimeterContentError) as exception_info:
+        data_helper.add_action(policy_id=policy_id, value=value)
+    assert str(exception_info.value) == '400: Perimeter content is invalid.'
+
+
+def test_add_action_multiple_times(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id1 = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_action",
+        "description": "test",
+    }
+    action = data_helper.add_action(policy_id=policy_id1, value=value)
+    logger.info("action : {}".format(action))
+    action_id = list(action.keys())[0]
+    perimeter_id = action[action_id].get('id')
+    assert action
+    value = {
+        "name": "test_action",
+        "description": "test",
+        "policy_list": ['policy_id_3', 'policy_id_4']
+    }
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id2 = mock_data.create_new_policy(
+        subject_category_name="subject_category2",
+        object_category_name="object_category2",
+        action_category_name="action_category2",
+        meta_rule_name="meta_rule_2",
+        model_name="model2")
+    action = data_helper.add_action(policy_id=policy_id2, perimeter_id=perimeter_id, value=value)
+    logger.info("action : {}".format(action))
+    assert action
+    action_id = list(action.keys())[0]
+    assert len(action[action_id].get('policy_list')) == 2
+
+
+def test_delete_action(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_action",
+        "description": "test",
+    }
+    action = data_helper.add_action(policy_id=policy_id, value=value)
+    action_id = list(action.keys())[0]
+    data_helper.delete_action(policy_id, action_id)
+    actions = data_helper.get_actions(policy_id, )
+    assert not actions
+
+
+def test_delete_action_with_invalid_perimeter_id(db):
+    policy_id = "invalid"
+    perimeter_id = "invalid"
+    with pytest.raises(PolicyUnknown) as exception_info:
+        data_helper.delete_action(policy_id, perimeter_id)
+    assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_get_objects(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_object",
+        "description": "test",
+    }
+    data_helper.add_object(policy_id=policy_id, value=value)
+    objects = data_helper.get_objects(policy_id, )
+    assert objects
+    assert len(objects) == 1
+    object_id = list(objects.keys())[0]
+    assert objects[object_id].get('policy_list')[0] == policy_id
+
+
+def test_add_object_with_same_policy_twice(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_object",
+        "description": "test",
+    }
+    added_object = data_helper.add_object(policy_id=policy_id, value=value)
+    assert added_object
+    object_id = list(added_object.keys())[0]
+    assert len(added_object[object_id].get('policy_list')) == 1
+
+    with pytest.raises(PolicyExisting) as exception_info:
+        data_helper.add_object(policy_id=policy_id, value=value)
+    assert str(exception_info.value) == '409: Policy Already Exists'
+
+
+def test_add_objects_multiple_times(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_object",
+        "description": "test",
+    }
+    added_object = data_helper.add_object(policy_id=policy_id, value=value)
+    object_id = list(added_object.keys())[0]
+    perimeter_id = added_object[object_id].get('id')
+    assert added_object
+    value = {
+        "name": "test_object",
+        "description": "test",
+    }
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category2",
+        object_category_name="object_category2",
+        action_category_name="action_category2",
+        meta_rule_name="meta_rule_2",
+        model_name="model2")
+    added_object = data_helper.add_object(policy_id=policy_id, perimeter_id=perimeter_id, value=value)
+    assert added_object
+    object_id = list(added_object.keys())[0]
+    assert len(added_object[object_id].get('policy_list')) == 2
+
+
+def test_delete_object(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "test_object",
+        "description": "test",
+    }
+    added_object = data_helper.add_object(policy_id=policy_id, value=value)
+    object_id = list(added_object.keys())[0]
+    data_helper.delete_object(policy_id, object_id)
+    objects = data_helper.get_objects(policy_id, )
+    assert not objects
+
+
+def test_delete_object_with_invalid_perimeter_id(db):
+    policy_id = "invalid"
+    perimeter_id = "invalid"
+    with pytest.raises(PolicyUnknown) as exception_info:
+        data_helper.delete_object(policy_id, perimeter_id)
+    assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_get_subjects(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    data_helper.add_subject(policy_id=policy_id, value=value)
+    subjects = data_helper.get_subjects(policy_id=policy_id)
+    assert subjects
+    assert len(subjects) == 1
+    subject_id = list(subjects.keys())[0]
+    assert subjects[subject_id].get('policy_list')[0] == policy_id
+
+
+def test_get_subjects_with_invalid_policy_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    data_helper.add_subject(policy_id=policy_id, value=value)
+    with pytest.raises(PolicyUnknown) as exception_info:
+        data_helper.get_subjects(policy_id="invalid")
+    assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_add_subject_with_same_policy_twice(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    subject = data_helper.add_subject(policy_id=policy_id, value=value)
+    assert subject
+    subject_id = list(subject.keys())[0]
+    assert len(subject[subject_id].get('policy_list')) == 1
+    with pytest.raises(PolicyExisting) as exception_info:
+        data_helper.add_subject(policy_id=policy_id, value=value)
+    assert str(exception_info.value) == '409: Policy Already Exists'
+
+
+def test_add_subjects_multiple_times(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    subject = data_helper.add_subject(policy_id=policy_id, value=value)
+    subject_id = list(subject.keys())[0]
+    perimeter_id = subject[subject_id].get('id')
+    assert subject
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category2",
+        object_category_name="object_category2",
+        action_category_name="action_category2",
+        meta_rule_name="meta_rule_2",
+        model_name="model2")
+    subject = data_helper.add_subject(policy_id=policy_id, perimeter_id=perimeter_id, value=value)
+    assert subject
+    subject_id = list(subject.keys())[0]
+    assert len(subject[subject_id].get('policy_list')) == 2
+
+
+def test_delete_subject(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    value = {
+        "name": "testuser",
+        "description": "test",
+    }
+    subject = data_helper.add_subject(policy_id=policy_id, value=value)
+    subject_id = list(subject.keys())[0]
+    data_helper.delete_subject(policy_id, subject_id)
+    subjects = data_helper.get_subjects(policy_id, )
+    assert not subjects
+
+
+def test_delete_subject_with_invalid_perimeter_id(db):
+    policy_id = "invalid"
+    perimeter_id = "invalid"
+    with pytest.raises(PolicyUnknown) as exception_info:
+        data_helper.delete_subject(policy_id, perimeter_id)
+    assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_delete_subject_with_assignment(db):
+
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category"+uuid4().hex,
+        object_category_name="object_category"+uuid4().hex,
+        action_category_name="action_category"+uuid4().hex,
+        meta_rule_name="meta_rule_"+uuid4().hex)
+
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+
+    with pytest.raises(DeletePerimeterWithAssignment) as exception_info:
+        data_helper.delete_subject(policy_id, subject_id)
+    assert '400: Perimeter With Assignment Error' == str(exception_info.value)
+
+
+def test_delete_object_with_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category" + uuid4().hex,
+        object_category_name="object_category" + uuid4().hex,
+        action_category_name="action_category" + uuid4().hex,
+        meta_rule_name="meta_rule_" + uuid4().hex)
+
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+
+    with pytest.raises(DeletePerimeterWithAssignment) as exception_info:
+        data_helper.delete_object(policy_id, object_id)
+    assert '400: Perimeter With Assignment Error' == str(exception_info.value)
+
+def test_delete_action_with_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category" + uuid4().hex,
+        object_category_name="object_category" + uuid4().hex,
+        action_category_name="action_category" + uuid4().hex,
+        meta_rule_name="meta_rule_" + uuid4().hex)
+
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+    assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+
+    with pytest.raises(DeletePerimeterWithAssignment) as exception_info:
+        data_helper.delete_action(policy_id, action_id)
+    assert '400: Perimeter With Assignment Error' == str(exception_info.value)
+
+
+def test_get_available_metadata(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1")
+    metadata = data_helper.get_available_metadata(policy_id=policy_id)
+    assert metadata
+    assert metadata['object'][0] == object_category_id
+    assert metadata['subject'][0] == subject_category_id
+    assert metadata['action'][0] == action_category_id
+
+
+def test_get_available_metadata_with_invalid_policy_id(db):
+    with pytest.raises(PolicyUnknown) as exception_info:
+        data_helper.get_available_metadata(policy_id='invalid')
+    assert '400: Policy Unknown' == str(exception_info.value)
diff --git a/old/python_moondb/tests/unit_python/policies/test_policies.py b/old/python_moondb/tests/unit_python/policies/test_policies.py
new file mode 100755
index 00000000..b2394203
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/policies/test_policies.py
@@ -0,0 +1,643 @@
+# Copyright 2015 Open Platform for NFV Project, Inc. and its contributors
+# This software is distributed under the terms and conditions of the 'Apache-2.0'
+# license which can be found in the file 'LICENSE' in this package distribution
+# or at 'http://www.apache.org/licenses/LICENSE-2.0'.
+
+import pytest
+import helpers.mock_data as mock_data
+import helpers.policy_helper as policy_helper
+import helpers.model_helper as model_helper
+import helpers.model_helper as model_helper
+from python_moonutilities.exceptions import *
+import helpers.pdp_helper as pdp_helper
+import helpers.data_helper as data_helper
+import helpers.assignment_helper as assignment_helper
+from uuid import uuid4
+
+
+def test_get_policies(db):
+    policies = policy_helper.get_policies()
+    assert isinstance(policies, dict)
+    assert not policies
+
+
+def test_add_policies(db):
+    model = model_helper.add_model(model_id=uuid4().hex)
+    model_id = next(iter(model))
+    value = {
+        "name": "test_policy",
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policies = policy_helper.add_policies(value=value)
+    assert isinstance(policies, dict)
+    assert policies
+    assert len(policies.keys()) == 1
+    policy_id = list(policies.keys())[0]
+    for key in ("genre", "name", "model_id", "description"):
+        assert key in policies[policy_id]
+        assert policies[policy_id][key] == value[key]
+
+
+def test_add_policies_twice_with_same_id(db):
+    policy_id = 'policy_id_1'
+    model = model_helper.add_model(model_id=uuid4().hex)
+    model_id = next(iter(model))
+    value = {
+        "name": "test_policy",
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policy_helper.add_policies(policy_id, value)
+    with pytest.raises(PolicyExisting) as exception_info:
+        policy_helper.add_policies(policy_id, value)
+    assert str(exception_info.value) == '409: Policy Already Exists'
+
+
+def test_add_policies_twice_with_same_name(db):
+    model = model_helper.add_model(model_id=uuid4().hex)
+    model_id = next(iter(model))
+    policy_name=uuid4().hex
+    value = {
+        "name": policy_name,
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policy_helper.add_policies(value=value)
+    with pytest.raises(Exception) as exception_info:
+        policy_helper.add_policies(value=value)
+    assert str(exception_info.value) == '409: Policy Already Exists'
+    assert str(exception_info.value.description)== 'Policy name Existed'
+
+
+def test_delete_policies(db):
+    model = model_helper.add_model(model_id=uuid4().hex)
+    model_id = next(iter(model))
+    policy_name1 = uuid4().hex
+    value = {
+        "name": policy_name1,
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policies = policy_helper.add_policies(value=value)
+    policy_id1 = list(policies.keys())[0]
+    policy_name2 = uuid4().hex
+    value = {
+        "name": policy_name2,
+        "model_id": model_id,
+        "genre": "authz",
+        "description": "test",
+    }
+    policies = policy_helper.add_policies(value=value)
+    policy_id2 = list(policies.keys())[0]
+    assert policy_id1 != policy_id2
+    policy_helper.delete_policies(policy_id1)
+    policies = policy_helper.get_policies()
+    assert policy_id1 not in policies
+
+
+def test_delete_policies_with_invalid_id(db):
+    policy_id = 'policy_id_1'
+    with pytest.raises(PolicyUnknown) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    # assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_update_policy(db):
+    policies = policy_helper.add_policies()
+    policy_id = list(policies.keys())[0]
+    value = {
+        "name": "test_policy4",
+        "model_id": policies[policy_id]['model_id'],
+        "genre": "authz",
+        "description": "test-3",
+    }
+    updated_policy = policy_helper.update_policy(policy_id, value)
+    assert updated_policy
+    for key in ("genre", "name", "model_id", "description"):
+        assert key in updated_policy[policy_id]
+        assert updated_policy[policy_id][key] == value[key]
+
+
+def test_update_policy_name_with_existed_one(db):
+    policies = policy_helper.add_policies()
+    policy_id1 = list(policies.keys())[0]
+    policy_name = uuid4().hex
+    value = {
+        "name": policy_name,
+        "model_id": policies[policy_id1]['model_id'],
+        "genre": "authz",
+        "description": "test-3",
+    }
+    policy_helper.add_policies(value=value)
+    with pytest.raises(PolicyExisting) as exception_info:
+        policy_helper.update_policy(policy_id=policy_id1,value=value)
+
+    assert str(exception_info.value) == '409: Policy Already Exists'
+    assert str(exception_info.value.description)== 'Policy name Existed'
+
+
+def test_update_policy_with_invalid_id(db):
+    policy_id = 'invalid-id'
+    value = {
+        "name": "test_policy4",
+        "model_id": "",
+        "genre": "authz",
+        "description": "test-3",
+    }
+    with pytest.raises(PolicyUnknown) as exception_info:
+        policy_helper.update_policy(policy_id, value)
+    assert str(exception_info.value) == '400: Policy Unknown'
+
+
+def test_get_policy_from_meta_rules(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    security_pipeline = [policy_id]
+    pdp_obj = mock_data.create_pdp(security_pipeline)
+    pdp_helper.add_pdp(value=pdp_obj)
+    matched_policy_id = policy_helper.get_policy_from_meta_rules(meta_rule_id)
+    assert matched_policy_id
+    assert policy_id == matched_policy_id
+
+
+def test_get_policy_from_meta_rules_with_no_policy_ids(db):
+    meta_rule_id = 'meta_rule_id'
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(value=value)
+    matched_policy_id = policy_helper.get_policy_from_meta_rules(meta_rule_id)
+    assert not matched_policy_id
+
+
+def test_get_rules(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category12",
+        object_category_name="object_category12",
+        action_category_name="action_category12",
+        meta_rule_name="meta_rule_12",
+        model_name="model12")
+
+    policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id)
+
+    policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id)
+    rules = policy_helper.get_rules(policy_id=policy_id, meta_rule_id=meta_rule_id)
+    assert isinstance(rules, dict)
+    assert rules
+    obj = rules.get('rules')
+    assert len(obj) == 2
+
+
+def test_get_rules_with_invalid_policy_id_failure(db):
+    rules = policy_helper.get_rules("invalid_policy_id", "meta_rule_id")
+    assert not rules.get('meta_rule-id')
+    assert len(rules.get('rules')) == 0
+
+
+def test_add_rule_existing(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+
+    value = {
+        "rule": (subject_data_id, object_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    rules = policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert rules
+    assert len(rules) == 1
+    assert isinstance(rules, dict)
+    rule_id = list(rules.keys())[0]
+    for key in ("rule", "instructions", "enabled"):
+        assert key in rules[rule_id]
+        assert rules[rule_id][key] == value[key]
+
+    with pytest.raises(RuleExisting) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '409: Rule Existing'
+
+
+def test_check_existing_rule_valid_request(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (subject_data_id, object_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    rules = policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert rules
+    assert len(rules) == 1
+    assert isinstance(rules, dict)
+    rule_id = list(rules.keys())[0]
+    for key in ("rule", "instructions", "enabled"):
+        assert key in rules[rule_id]
+        assert rules[rule_id][key] == value[key]
+
+    with pytest.raises(RuleExisting) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '409: Rule Existing'
+
+
+def test_check_existing_rule_valid_multiple__data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id1 = mock_data.create_subject_data(policy_id=policy_id,
+                                                     category_id=subject_category_id)
+    subject_data_id2 = mock_data.create_subject_data(policy_id=policy_id,
+                                                     category_id=subject_category_id)
+    object_data_id1 = mock_data.create_object_data(policy_id=policy_id,
+                                                   category_id=object_category_id)
+    object_data_id2 = mock_data.create_object_data(policy_id=policy_id,
+                                                   category_id=object_category_id)
+    action_data_id1 = mock_data.create_action_data(policy_id=policy_id,
+                                                   category_id=action_category_id)
+    action_data_id2 = mock_data.create_action_data(policy_id=policy_id,
+                                                   category_id=action_category_id)
+    value = {
+        "rule": (
+            subject_data_id1, object_data_id2, action_data_id1),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    rules = policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert rules
+    assert len(rules) == 1
+    assert isinstance(rules, dict)
+    rule_id = list(rules.keys())[0]
+    for key in ("rule", "instructions", "enabled"):
+        assert key in rules[rule_id]
+        assert rules[rule_id][key] == value[key]
+
+    with pytest.raises(RuleExisting) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '409: Rule Existing'
+
+
+def test_check_existing_rule_missing_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (object_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert exception_info.value.description== "Missing Data"
+
+
+def test_check_existing_rule_meta_rule_missing_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (subject_data_id, object_data_id, action_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(MetaRuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Meta Rule Error'
+    assert exception_info.value.description == "Missing Data"
+
+
+def test_check_existing_rule_invalid_data_id_order(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (object_data_id, action_data_id, subject_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert "Missing Subject_category" in exception_info.value.description
+
+
+def test_check_existing_rule_invalid_data_id_order_scenrio_2(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (subject_data_id, action_data_id, object_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert "Missing Object_category" in exception_info.value.description
+
+
+def test_check_existing_rule_wrong_subject_data_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (uuid4().hex, object_data_id, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert "Missing Subject_category" in exception_info.value.description
+
+
+def test_check_existing_rule_wrong_object_data_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (subject_data_id, uuid4().hex, action_data_id),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert "Missing Object_category" in exception_info.value.description
+
+
+def test_check_existing_rule_wrong_action_data_id(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    subject_data_id = mock_data.create_subject_data(policy_id=policy_id,
+                                                    category_id=subject_category_id)
+    object_data_id = mock_data.create_object_data(policy_id=policy_id,
+                                                  category_id=object_category_id)
+    action_data_id = mock_data.create_action_data(policy_id=policy_id,
+                                                  category_id=action_category_id)
+    value = {
+        "rule": (subject_data_id, object_data_id, uuid4().hex),
+        "instructions": ({"decision": "grant"}),
+        "enabled": "",
+    }
+
+    with pytest.raises(RuleContentError) as exception_info:
+        policy_helper.add_rule(policy_id=policy_id, meta_rule_id=meta_rule_id, value=value)
+    assert str(exception_info.value) == '400: Rule Error'
+    assert "Missing Action_category" in exception_info.value.description
+
+
+def test_delete_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    rules = policy_helper.add_rule(policy_id, meta_rule_id)
+    rule_id = list(rules.keys())[0]
+    policy_helper.delete_rule(policy_id, rule_id)
+    rules = policy_helper.get_rules(policy_id, meta_rule_id)
+    assert not rules.get('rules')
+
+
+def test_delete_policies_with_pdp(db):
+    policies = policy_helper.add_policies()
+    policy_id1 = list(policies.keys())[0]
+    pdp_id = "pdp_id1"
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id1],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(pdp_id=pdp_id, value=value)
+    with pytest.raises(DeletePolicyWithPdp) as exception_info:
+        policy_helper.delete_policies(policy_id1)
+    assert str(exception_info.value) == '400: Policy With PDP Error'
+    assert 'Cannot delete policy with pdp' == exception_info.value.description
+
+
+def test_delete_policies_with_subject_perimeter(db):
+    policies = policy_helper.add_policies()
+    policy_id1 = list(policies.keys())[0]
+
+    value = {
+        "name": "testuser",
+        "security_pipeline": [policy_id1],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    data_helper.add_subject(policy_id=policy_id1, value=value)
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id1)
+    assert str(exception_info.value) == '400: Policy With Perimeter Error'
+    assert 'Cannot delete policy with perimeter'== exception_info.value.description
+
+
+def test_delete_policies_with_object_perimeter(db):
+    policies = policy_helper.add_policies()
+    policy_id1 = list(policies.keys())[0]
+
+    value = {
+        "name": "test_obj",
+        "security_pipeline": [policy_id1],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    data_helper.add_object(policy_id=policy_id1, value=value)
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id1)
+    assert str(exception_info.value) == '400: Policy With Perimeter Error'
+    assert 'Cannot delete policy with perimeter'== exception_info.value.description
+
+
+def test_delete_policies_with_action_perimeter(db):
+    policies = policy_helper.add_policies()
+    policy_id1 = list(policies.keys())[0]
+
+    value = {
+        "name": "test_act",
+        "security_pipeline": [policy_id1],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    data_helper.add_action(policy_id=policy_id1, value=value)
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id1)
+    assert '400: Policy With Perimeter Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_subject_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    subject_id = mock_data.create_subject(policy_id)
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+    assignment_helper.add_subject_assignment(policy_id, subject_id, subject_category_id, data_id)
+
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id)
+
+    assert '400: Policy With Perimeter Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_object_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    object_id = mock_data.create_object(policy_id)
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+    assignment_helper.add_object_assignment(policy_id, object_id, object_category_id, data_id)
+
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    assert '400: Policy With Perimeter Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_action_assignment(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    action_id = mock_data.create_action(policy_id)
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+    assignment_helper.add_action_assignment(policy_id, action_id, action_category_id, data_id)
+
+    with pytest.raises(DeletePolicyWithPerimeter) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    assert '400: Policy With Perimeter Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_subject_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    data_id = mock_data.create_subject_data(policy_id=policy_id, category_id=subject_category_id)
+
+    with pytest.raises(DeletePolicyWithData) as exception_info:
+        policy_helper.delete_policies(policy_id)
+
+    assert '400: Policy With Data Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_object_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    data_id = mock_data.create_object_data(policy_id=policy_id, category_id=object_category_id)
+
+    with pytest.raises(DeletePolicyWithData) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    assert '400: Policy With Data Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_action_data(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    data_id = mock_data.create_action_data(policy_id=policy_id, category_id=action_category_id)
+
+    with pytest.raises(DeletePolicyWithData) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    assert '400: Policy With Data Error' == str(exception_info.value)
+
+
+def test_delete_policies_with_rule(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy()
+
+    rules = policy_helper.add_rule(policy_id, meta_rule_id)
+
+    with pytest.raises(DeletePolicyWithRules) as exception_info:
+        policy_helper.delete_policies(policy_id)
+    assert '400: Policy With Rule Error' == str(exception_info.value)
diff --git a/old/python_moondb/tests/unit_python/requirements.txt b/old/python_moondb/tests/unit_python/requirements.txt
new file mode 100644
index 00000000..aea8e3d5
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/requirements.txt
@@ -0,0 +1,4 @@
+sqlalchemy
+pymysql
+requests_mock
+python_moonutilities==1.4.20
\ No newline at end of file
diff --git a/old/python_moondb/tests/unit_python/test_keystone.py b/old/python_moondb/tests/unit_python/test_keystone.py
new file mode 100644
index 00000000..134bec0d
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/test_keystone.py
@@ -0,0 +1,53 @@
+import pytest
+
+
+def create_project(tenant_dict):
+    from python_moondb.core import KeystoneManager
+    return KeystoneManager.create_project(tenant_dict)
+
+
+def list_projects():
+    from python_moondb.core import KeystoneManager
+    return KeystoneManager.list_projects()
+
+
+def create_user(subject_dict):
+    from python_moondb.core import KeystoneManager
+    return KeystoneManager.create_user(subject_dict)
+
+
+def test_create_project():
+    tenant_dict = {
+        "description": "test_project",
+        "domain_id": ['domain_id_1'],
+        "enabled": True,
+        "is_domain": False,
+        "name": 'project_1'
+    }
+    project = create_project(tenant_dict)
+    assert project
+    assert project.get('name') == tenant_dict.get('name')
+
+
+def test_create_project_without_name():
+    tenant_dict = {
+        "description": "test_project",
+        "domain_id": ['domain_id_1'],
+        "enabled": True,
+        "is_domain": False,
+    }
+    with pytest.raises(Exception) as exception_info:
+        create_project(tenant_dict)
+    assert '400: Keystone project error' == str(exception_info.value)
+
+
+def test_create_user():
+    subject_dict = {
+        "password": "password",
+        "domain_id": ['domain_id_1'],
+        "enabled": True,
+        "project": 'test_project',
+        "name": 'user_id_1'
+    }
+    user = create_user(subject_dict)
+    assert user
diff --git a/old/python_moondb/tests/unit_python/test_pdp.py b/old/python_moondb/tests/unit_python/test_pdp.py
new file mode 100755
index 00000000..4d245e4d
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/test_pdp.py
@@ -0,0 +1,149 @@
+import pytest
+import helpers.mock_data as mock_data
+import helpers.pdp_helper as pdp_helper
+
+
+def test_update_pdp(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(pdp_id, value)
+    pdp = pdp_helper.update_pdp(pdp_id, value)
+    assert pdp
+
+
+def test_update_pdp_with_invalid_id(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    with pytest.raises(Exception) as exception_info:
+        pdp_helper.update_pdp(pdp_id, value)
+    assert str(exception_info.value) == '400: Pdp Unknown'
+
+
+def test_delete_pdp(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(pdp_id, value)
+    pdp_helper.delete_pdp(pdp_id)
+    assert len(pdp_helper.get_pdp(pdp_id)) == 0
+
+
+def test_delete_pdp_with_invalid_id(db):
+    pdp_id = "pdp_id1"
+    with pytest.raises(Exception) as exception_info:
+        pdp_helper.delete_pdp(pdp_id)
+    assert str(exception_info.value) == '400: Pdp Unknown'
+
+
+def test_add_pdp(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp = pdp_helper.add_pdp(pdp_id, value)
+    assert pdp
+
+
+def test_add_pdp_twice_with_same_id(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(pdp_id, value)
+    with pytest.raises(Exception) as exception_info:
+        pdp_helper.add_pdp(pdp_id, value)
+    assert str(exception_info.value) == '409: Pdp Error'
+
+
+def test_add_pdp_twice_with_same_name(db):
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(value=value)
+    with pytest.raises(Exception) as exception_info:
+        pdp_helper.add_pdp(value=value)
+    assert str(exception_info.value) == '409: Pdp Error'
+
+
+def test_get_pdp(db):
+    pdp_id = "pdp_id1"
+    subject_category_id, object_category_id, action_category_id, meta_rule_id, policy_id = mock_data.create_new_policy(
+        subject_category_name="subject_category1",
+        object_category_name="object_category1",
+        action_category_name="action_category1",
+        meta_rule_name="meta_rule_1",
+        model_name="model1")
+    value = {
+        "name": "test_pdp",
+        "security_pipeline": [policy_id],
+        "keystone_project_id": "keystone_project_id1",
+        "description": "...",
+    }
+    pdp_helper.add_pdp(pdp_id, value)
+    pdp = pdp_helper.get_pdp(pdp_id)
+    assert len(pdp) == 1
+
+
+def test_get_pdp_with_invalid_id(db):
+    pdp_id = "invalid"
+    pdp = pdp_helper.get_pdp(pdp_id)
+    assert len(pdp) == 0
diff --git a/old/python_moondb/tests/unit_python/utilities.py b/old/python_moondb/tests/unit_python/utilities.py
new file mode 100644
index 00000000..1d79d890
--- /dev/null
+++ b/old/python_moondb/tests/unit_python/utilities.py
@@ -0,0 +1,136 @@
+import base64
+import json
+
+
+CONF = {
+    "openstack": {
+        "keystone": {
+            "url": "http://keystone:5000/v3",
+            "user": "admin",
+            "check_token": False,
+            "password": "p4ssw0rd",
+            "domain": "default",
+            "certificate": False,
+            "project": "admin"
+        }
+    },
+    "components": {
+        "wrapper": {
+            "bind": "0.0.0.0",
+            "port": 8080,
+            "container": "wukongsun/moon_wrapper:v4.3",
+            "timeout": 5,
+            "hostname": "wrapper"
+        },
+        "manager": {
+            "bind": "0.0.0.0",
+            "port": 8082,
+            "container": "wukongsun/moon_manager:v4.3",
+            "hostname": "manager"
+        },
+        "port_start": 31001,
+        "orchestrator": {
+            "bind": "0.0.0.0",
+            "port": 8083,
+            "container": "wukongsun/moon_orchestrator:v4.3",
+            "hostname": "interface"
+        },
+        "interface": {
+            "bind": "0.0.0.0",
+            "port": 8080,
+            "container": "wukongsun/moon_interface:v4.3",
+            "hostname": "interface"
+        }
+    },
+    "plugins": {
+        "session": {
+            "port": 8082,
+            "container": "asteroide/session:latest"
+        },
+        "authz": {
+            "port": 8081,
+            "container": "wukongsun/moon_authz:v4.3"
+        }
+    },
+    "logging": {
+        "handlers": {
+            "file": {
+                "filename": "/tmp/moon.log",
+                "class": "logging.handlers.RotatingFileHandler",
+                "level": "DEBUG",
+                "formatter": "custom",
+                "backupCount": 3,
+                "maxBytes": 1048576
+            },
+            "console": {
+                "class": "logging.StreamHandler",
+                "formatter": "brief",
+                "level": "INFO",
+                "stream": "ext://sys.stdout"
+            }
+        },
+        "formatters": {
+            "brief": {
+                "format": "%(levelname)s %(name)s %(message)-30s"
+            },
+            "custom": {
+                "format": "%(asctime)-15s %(levelname)s %(name)s %(message)s"
+            }
+        },
+        "root": {
+            "handlers": [
+                "console"
+            ],
+            "level": "ERROR"
+        },
+        "version": 1,
+        "loggers": {
+            "moon": {
+                "handlers": [
+                    "console",
+                    "file"
+                ],
+                "propagate": False,
+                "level": "DEBUG"
+            }
+        }
+    },
+    "slave": {
+        "name": None,
+        "master": {
+            "url": None,
+            "login": None,
+            "password": None
+        }
+    },
+    "docker": {
+        "url": "tcp://172.88.88.1:2376",
+        "network": "moon"
+    },
+    "database": {
+        "url": "sqlite:///database.db",
+        # "url": "mysql+pymysql://moon:p4sswOrd1@db/moon",
+        "driver": "sql"
+    },
+    "messenger": {
+        "url": "rabbit://moon:p4sswOrd1@messenger:5672/moon"
+    }
+}
+
+
+def get_b64_conf(component=None):
+    if component == "components":
+        return base64.b64encode(
+            json.dumps(CONF["components"]).encode('utf-8')+b"\n").decode('utf-8')
+    elif component in CONF:
+        return base64.b64encode(
+            json.dumps(
+                CONF[component]).encode('utf-8')+b"\n").decode('utf-8')
+    elif not component:
+        return base64.b64encode(
+            json.dumps(CONF).encode('utf-8')+b"\n").decode('utf-8')
+    elif "/" in component:
+        key1, _, key2 = component.partition("/")
+        return base64.b64encode(
+            json.dumps(
+                CONF[key1][key2]).encode('utf-8')+b"\n").decode('utf-8')