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, 44 insertions, 0 deletions

diff --git a/snaps/domain/creator.py b/snaps/domain/creator.py
new file mode 100644
index 0000000..cbfd030
--- /dev/null
+++ b/snaps/domain/creator.py
@@ -0,0 +1,44 @@
+# 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.
+
+__author__ = 'spisarski'
+
+
+class CloudObject(object):
+    """
+    Base class for all cloud objects to create or manage
+    """
+
+    def initialize(self):
+        """
+        Method used to initialize object via queries
+        :return:
+        """
+        raise NotImplementedError('Please implement this abstract method')
+
+    def create(self):
+        """
+        Method to be called to create this cloud object. First line should
+        generally be a call to initialize()
+        :return:
+        """
+        raise NotImplementedError('Please implement this abstract method')
+
+    def clean(self):
+        """
+        Method used to delete objects on the cloud
+        :return:
+        """
+        raise NotImplementedError('Please implement this abstract method')