1 files changed, 51 insertions, 0 deletions
diff --git a/netmodel/model/uuid.py b/netmodel/model/uuid.py
new file mode 100644
index 00000000..dae51d75
--- /dev/null
+++ b/netmodel/model/uuid.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (c) 2017 Cisco and/or its affiliates.
+#
+# 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.
+#
+
+import random
+import string
+
+# Separator for components of the UUID
+UUID_SEP = '-'
+
+# Length of the random component of the UUID
+UUID_LEN = 5
+
+class UUID:
+    def __init__(self, name, cls):
+        self._uuid = self._make_uuid(name, cls)
+
+    def _make_uuid(self, name, cls):
+        """Generate a unique resource identifier
+
+        The UUID consists in the type of the resource, to which is added a
+        random identifier of length UUID_LEN. Components of the UUID are
+        separated by UUID_SEP.
+        """
+        uuid = ''.join(random.choice(string.ascii_uppercase + string.digits)
+                for _ in range(UUID_LEN))
+        if name:
+            uuid = name # + UUID_SEP + uuid
+        return UUID_SEP.join([cls.__name__, uuid])
+
+    def __repr__(self):
+        return '<UUID {}>'.format(self._uuid)
+
+    def __lt__(self, other):
+        return self._uuid < other._uuid
+
+    __str__ = __repr__