X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=plugins%2FOpenStack%2Fsingleton.py;h=abfe4e29f046e3747f042b02a3af54277e8bbc52;hb=d00ff82f2b06b5ae2a353e0f6a9b30d813ffa21f;hp=2edc20bfe9891ffdd650a3e862d68a39b4f4a853;hpb=f358b4fdd006b427e5b653d467c29ae37a47406e;p=osm%2FMON.git

diff --git a/plugins/OpenStack/singleton.py b/plugins/OpenStack/singleton.py
index 2edc20b..abfe4e2 100644
--- a/plugins/OpenStack/singleton.py
+++ b/plugins/OpenStack/singleton.py
@@ -1,14 +1,40 @@
+# Copyright 2017 Intel Research and Development Ireland Limited
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Intel Corporation
+
+# 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.
+
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: helena.mcgough@intel.com or adrian.hoban@intel.com
+##
+"""Simple singleton class."""
+
 from __future__ import unicode_literals
 
+__author__ = "Helena McGough"
+
 
 class Singleton(object):
-    """Simple singleton class"""
+    """Simple singleton class."""
 
     def __init__(self, decorated):
+        """Initialize singleton instance."""
         self._decorated = decorated
 
     def instance(self):
-        """Return singleton instance"""
+        """Return singleton instance."""
         try:
             return self._instance
         except AttributeError: