Improved creator/state machine classes class hierarchy.

Created abstract superclasses for all classes responsible
for deploying and maintaining the state of objects deployed
to OpenStack which should help developers better understand
the library.

JIRA: SNAPS-183

Change-Id: I7651bd338f0d4e4086abbc11755e6be4f19058bd
Signed-off-by: spisarski <s.pisarski@cablelabs.com>

1 files changed, 110 insertions, 0 deletions

diff --git a/snaps/openstack/openstack_creator.py b/snaps/openstack/openstack_creator.py
new file mode 100644
index 0000000..de2ae91
--- /dev/null
+++ b/snaps/openstack/openstack_creator.py
@@ -0,0 +1,110 @@
+# Copyright (c) 2017 Cable Television Laboratories, Inc. ("CableLabs")
+#                    and others.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from snaps.domain.creator import CloudObject
+from snaps.openstack.utils import nova_utils, neutron_utils, keystone_utils
+
+__author__ = 'spisarski'
+
+
+class OpenStackCloudObject(CloudObject):
+    """
+    Abstract class for all OpenStack object creators
+    """
+
+    def __init__(self, os_creds):
+        """
+        Constructor
+        :param os_creds: the OpenStack credentials object
+        """
+        # super(self.__class__, self, os_creds)
+        self._os_creds = os_creds
+
+    def initialize(self):
+        raise NotImplementedError('Do not override abstract method')
+
+    def create(self):
+        raise NotImplementedError('Do not override abstract method')
+
+    def clean(self):
+        raise NotImplementedError('Do not override abstract method')
+
+
+class OpenStackComputeObject(OpenStackCloudObject):
+    """
+    Abstract class for all OpenStack compute creators
+    """
+
+    def __init__(self, os_creds):
+        """
+        Constructor
+        :param os_creds: the OpenStack credentials object
+        """
+        super(OpenStackComputeObject, self).__init__(os_creds)
+        self._nova = None
+
+    def initialize(self):
+        self._nova = nova_utils.nova_client(self._os_creds)
+
+    def create(self):
+        raise NotImplementedError('Do not override abstract method')
+
+    def clean(self):
+        raise NotImplementedError('Do not override abstract method')
+
+
+class OpenStackNetworkObject(OpenStackCloudObject):
+    """
+    Abstract class for all OpenStack compute creators
+    """
+
+    def __init__(self, os_creds):
+        """
+        Constructor
+        :param os_creds: the OpenStack credentials object
+        """
+        super(OpenStackNetworkObject, self).__init__(os_creds)
+        self._neutron = None
+
+    def initialize(self):
+        self._neutron = neutron_utils.neutron_client(self._os_creds)
+
+    def create(self):
+        raise NotImplementedError('Do not override abstract method')
+
+    def clean(self):
+        raise NotImplementedError('Do not override abstract method')
+
+
+class OpenStackIdentityObject(OpenStackCloudObject):
+    """
+    Abstract class for all OpenStack compute creators
+    """
+
+    def __init__(self, os_creds):
+        """
+        Constructor
+        :param os_creds: the OpenStack credentials object
+        """
+        super(OpenStackIdentityObject, self).__init__(os_creds)
+        self._keystone = None
+
+    def initialize(self):
+        self._keystone = keystone_utils.keystone_client(self._os_creds)
+
+    def create(self):
+        raise NotImplementedError('Do not override abstract method')
+
+    def clean(self):
+        raise NotImplementedError('Do not override abstract method')