Adds support for autoscaling based on vnf-metric

[osm/POL.git] / osm_policy_module / utils / vnfd.py

diff --git a/osm_policy_module/utils/vnfd.py b/osm_policy_module/utils/vnfd.py
new file mode 100644 (file)
index 0000000..234d864
--- /dev/null
+++ b/osm_policy_module/utils/vnfd.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+
+# Copyright 2018 Whitestack, LLC
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Whitestack, LLC
+
+# 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: bdiaz@whitestack.com or glavado@whitestack.com
+##
+from osm_policy_module.core.exceptions import ManagementVduNotFound
+
+
+class VnfdUtils:
+
+    @staticmethod
+    def get_mgmt_vdu(vnfd: dict):
+        if 'cp' in vnfd['mgmt-interface']:
+            for vdu in vnfd['vdu']:
+                for interface in vdu['interface']:
+                    if 'external-connection-point-ref' in interface:
+                        if interface['external-connection-point-ref'] == vnfd['mgmt-interface']['cp']:
+                            return vdu
+        elif 'vdu-id' in vnfd['mgmt-interface']:
+            for vdu in vnfd['vdu']:
+                if vdu['id'] == vnfd['mgmt-interface']['vdu-id']:
+                    return vdu
+        raise ManagementVduNotFound("Management vdu not founr in vnfd %s", vnfd['id'])