Refactor common_db client code

[osm/POL.git] / osm_policy_module / common / db_client.py

diff --git a/osm_policy_module/common/db_client.py b/osm_policy_module/common/db_client.py
new file mode 100644 (file)
index 0000000..e93747f
--- /dev/null
+++ b/osm_policy_module/common/db_client.py
@@ -0,0 +1,59 @@
+# -*- 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_common import dbmongo
+
+from osm_policy_module.core.config import Config
+
+
+class DbClient:
+    def __init__(self):
+        cfg = Config.instance()
+        self.common_db = dbmongo.DbMongo()
+        self.common_db.db_connect({'host': cfg.OSMPOL_DATABASE_HOST,
+                                   'port': int(cfg.OSMPOL_DATABASE_PORT),
+                                   'name': 'osm'})
+
+    def get_vnfr(self, nsr_id: str, member_index: int):
+        vnfr = self.common_db.get_one(table="vnfrs",
+                                      filter={"nsr-id-ref": nsr_id, "member-vnf-index-ref": str(member_index)})
+        return vnfr
+
+    def get_vnfrs(self, nsr_id: str):
+        return [self.get_vnfr(nsr_id, member['member-vnf-index']) for member in
+                self.get_nsr(nsr_id)['nsd']['constituent-vnfd']]
+
+    def get_vnfd(self, vnfd_id: str):
+        vnfr = self.common_db.get_one(table="vnfds",
+                                      filter={"_id": vnfd_id})
+        return vnfr
+
+    def get_nsr(self, nsr_id: str):
+        nsr = self.common_db.get_one(table="nsrs",
+                                     filter={"id": nsr_id})
+        return nsr
+
+    def get_nslcmop(self, nslcmop_id):
+        nslcmop = self.common_db.get_one(table="nslcmops",
+                                         filter={"_id": nslcmop_id})
+        return nslcmop