Add uuidutils module

Added uuidutils to openstack-common.conf file and
updated quantum/openstack/common

Change-Id: If3d3908f666115b3c461e8820c5bafcf1cc69e97

openstack-common.conf

@@ -1,5 +1,5 @@
 [DEFAULT]
 # The list of modules to copy from openstack-common
-modules=cfg,exception,importutils,iniparser,jsonutils,policy,setup,network_utils,notifier,timeutils,log,context,local,rpc,gettextutils,excutils
+modules=cfg,exception,importutils,iniparser,jsonutils,policy,setup,network_utils,notifier,timeutils,log,context,local,rpc,gettextutils,excutils,uuidutils
 # The base module to hold the copy of openstack.common
 base=quantum

quantum/openstack/common/uuidutils.py

@@ -0,0 +1,35 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright (c) 2012 Intel Corporation.
+# 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.
+
+"""
+UUID related utilities and helper functions.
+"""
+
+import uuid
+
+
+def is_uuid_like(val):
+    """Returns validation of a value as a UUID.
+
+    For our purposes, a UUID is a canonical form string:
+    aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa
+
+    """
+    try:
+        return str(uuid.UUID(val)) == val
+    except (TypeError, ValueError, AttributeError):
+        return False