add moonv4

Change-Id: I247af788d0b0fb961fbc85416486b241eb1d807c
Signed-off-by: WuKong <rebirthmonkey@gmail.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/moonv4/moon_db/moon_db/backends/memory.py b/moonv4/moon_db/moon_db/backends/memory.py
new file mode 100644
index 00000000..06de99eb
--- /dev/null
+++ b/moonv4/moon_db/moon_db/backends/memory.py
@@ -0,0 +1,60 @@
+# 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 json
+import logging
+import hashlib
+from glob import glob
+from oslo_config import cfg
+from moon_db.core import ConfigurationDriver
+
+LOG = logging.getLogger(__name__)
+CONF = cfg.CONF
+
+
+class ConfigurationConnector(object):
+
+    def __init__(self, engine):
+        super(ConfigurationConnector, self).__init__()
+        self.policy_directory = CONF.policy_directory
+        self.aggregation_algorithms_dict = dict()
+        self.aggregation_algorithms_dict[hashlib.sha224("all_true".encode("utf-8")).hexdigest()[:32]] = \
+            {'name': 'all_true', 'description': 'all rules must match'}
+        self.aggregation_algorithms_dict[hashlib.sha224("one_true".encode("utf-8")).hexdigest()[:32]] = \
+            {'name': 'one_true', 'description': 'only one rule has to match'}
+        self.sub_meta_rule_algorithms_dict = dict()
+        self.sub_meta_rule_algorithms_dict[hashlib.sha224("inclusion".encode("utf-8")).hexdigest()[:32]] = \
+            {'name': 'inclusion', 'description': 'inclusion'}
+        self.sub_meta_rule_algorithms_dict[hashlib.sha224("comparison".encode("utf-8")).hexdigest()[:32]] = \
+            {'name': 'comparison', 'description': 'comparison'}
+
+    def get_policy_templates_dict(self):
+        """
+        :return: {
+            template_id1: {name: template_name, description: template_description},
+            template_id2: {name: template_name, description: template_description},
+            ...
+            }
+        """
+        nodes = glob(os.path.join(self.policy_directory, "*"))
+        LOG.info("get_policy_templates_dict {} {}".format(self.policy_directory, nodes))
+        templates = dict()
+        for node in nodes:
+            try:
+                metadata = json.load(open(os.path.join(node, "metadata.json")))
+            except IOError:
+                # Note (asteroide): it's not a true policy directory, so we forgive it
+                continue
+            templates[os.path.basename(node)] = dict()
+            templates[os.path.basename(node)]["name"] = metadata["name"]
+            templates[os.path.basename(node)]["description"] = metadata["description"]
+        return templates
+
+    def get_aggregation_algorithms_dict(self):
+        return self.aggregation_algorithms_dict
+
+    def get_sub_meta_rule_algorithms_dict(self):
+        return self.sub_meta_rule_algorithms_dict