lcm/lcm/nf/views/subscriptions_view.py

   1 # Copyright (C) 2018 Verizon. All Rights Reserved\r
   2 #\r
   3 # Licensed under the Apache License, Version 2.0 (the "License");\r
   4 # you may not use this file except in compliance with the License.\r
   5 # You may obtain a copy of the License at\r
   6 #\r
   7 #         http://www.apache.org/licenses/LICENSE-2.0\r
   8 #\r
   9 # Unless required by applicable law or agreed to in writing, software\r
  10 # distributed under the License is distributed on an "AS IS" BASIS,\r
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  12 # See the License for the specific language governing permissions and\r
  13 # limitations under the License.\r
  14 \r
  15 import ast\r
  16 import json\r
  17 import logging\r
  18 \r
  19 from drf_yasg.utils import swagger_auto_schema\r
  20 from rest_framework import status\r
  21 from rest_framework.response import Response\r
  22 from rest_framework.views import APIView\r
  23 \r
  24 from lcm.nf.serializers.lccn_subscription_request import LccnSubscriptionRequestSerializer\r
  25 from lcm.nf.serializers.lccn_subscription import LccnSubscriptionSerializer\r
  26 from lcm.nf.serializers.lccn_subscriptions import LccnSubscriptionsSerializer\r
  27 from lcm.nf.serializers.response import ProblemDetailsSerializer\r
  28 from lcm.pub.exceptions import NFLCMException, NFLCMExceptionBadRequest\r
  29 from lcm.nf.biz.create_subscription import CreateSubscription\r
  30 from lcm.nf.biz.query_subscription import QuerySubscription\r
  31 from lcm.nf.biz.delete_subscription import DeleteSubscription\r
  32 from .common import view_safe_call_with_log\r
  33 \r
  34 logger = logging.getLogger(__name__)\r
  35 VALID_FILTERS = ["operationTypes", "operationStates", "notificationTypes", "vnfInstanceId"]\r
  36 \r
  37 \r
  38 def get_problem_details_serializer(status_code, error_message):\r
  39     problem_details = {\r
  40         "status": status_code,\r
  41         "detail": error_message\r
  42     }\r
  43     problem_details_serializer = ProblemDetailsSerializer(data=problem_details)\r
  44     problem_details_serializer.is_valid()\r
  45     return problem_details_serializer\r
  46 \r
  47 \r
  48 class SubscriptionsView(APIView):\r
  49     @swagger_auto_schema(\r
  50         request_body=LccnSubscriptionRequestSerializer(),\r
  51         responses={\r
  52             status.HTTP_201_CREATED: LccnSubscriptionSerializer(),\r
  53             status.HTTP_303_SEE_OTHER: ProblemDetailsSerializer(),\r
  54             status.HTTP_400_BAD_REQUEST: ProblemDetailsSerializer(),\r
  55             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()\r
  56         }\r
  57     )\r
  58     @view_safe_call_with_log(logger=logger)\r
  59     def post(self, request):\r
  60         logger.debug("SubscribeNotification--post::> %s" % request.data)\r
  61 \r
  62         lccn_subscription_request_serializer = LccnSubscriptionRequestSerializer(data=request.data)\r
  63         if not lccn_subscription_request_serializer.is_valid():\r
  64             raise NFLCMExceptionBadRequest(lccn_subscription_request_serializer.errors)\r
  65         subscription = CreateSubscription(\r
  66             request.data).do_biz()\r
  67         lccn_notifications_filter = {\r
  68             "notificationTypes": ast.literal_eval(subscription.notification_types),\r
  69             "operationTypes": ast.literal_eval(subscription.operation_types),\r
  70             "operationStates": ast.literal_eval(subscription.operation_states),\r
  71             "vnfInstanceSubscriptionFilter": json.loads(subscription.vnf_instance_filter)\r
  72         }\r
  73         subscription_data = {\r
  74             "id": subscription.subscription_id,\r
  75             "callbackUri": subscription.callback_uri,\r
  76             "_links": json.loads(subscription.links),\r
  77             "filter": lccn_notifications_filter\r
  78         }\r
  79         sub_resp_serializer = LccnSubscriptionSerializer(data=subscription_data)\r
  80         if not sub_resp_serializer.is_valid():\r
  81             raise NFLCMException(sub_resp_serializer.errors)\r
  82         return Response(data=subscription_data, status=status.HTTP_201_CREATED)\r
  83 \r
  84     @swagger_auto_schema(\r
  85         responses={\r
  86             status.HTTP_200_OK: LccnSubscriptionsSerializer(),\r
  87             status.HTTP_400_BAD_REQUEST: ProblemDetailsSerializer(),\r
  88             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()\r
  89         }\r
  90     )\r
  91     @view_safe_call_with_log(logger=logger)\r
  92     def get(self, request):\r
  93         logger.debug("SubscribeNotification--get::> %s" % request.query_params)\r
  94 \r
  95         if request.query_params and not set(request.query_params).issubset(set(VALID_FILTERS)):\r
  96             problem_details_serializer = get_problem_details_serializer(\r
  97                 status.HTTP_400_BAD_REQUEST,\r
  98                 "Not a valid filter"\r
  99             )\r
 100             return Response(data=problem_details_serializer.data,\r
 101                             status=status.HTTP_400_BAD_REQUEST)\r
 102         resp_data = QuerySubscription(request.query_params).query_multi_subscriptions()\r
 103 \r
 104         subscriptions_serializer = LccnSubscriptionsSerializer(data=resp_data)\r
 105         if not subscriptions_serializer.is_valid():\r
 106             raise NFLCMException(subscriptions_serializer.errors)\r
 107 \r
 108         logger.debug("SubscribeNotification--get::> Remove default fields")\r
 109         return Response(data=resp_data, status=status.HTTP_200_OK)\r
 110 \r
 111 \r
 112 class SubscriptionDetailView(APIView):\r
 113     @swagger_auto_schema(\r
 114         responses={\r
 115             status.HTTP_200_OK: LccnSubscriptionSerializer(),\r
 116             status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),\r
 117             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()\r
 118         }\r
 119     )\r
 120     @view_safe_call_with_log(logger=logger)\r
 121     def get(self, request, subscriptionid):\r
 122         logger.debug("SubscriptionDetailView--get::> %s" % subscriptionid)\r
 123 \r
 124         resp_data = QuerySubscription(\r
 125             subscription_id=subscriptionid\r
 126         ).query_single_subscription()\r
 127 \r
 128         subscription_serializer = LccnSubscriptionSerializer(data=resp_data)\r
 129         if not subscription_serializer.is_valid():\r
 130             raise NFLCMException(subscription_serializer.errors)\r
 131 \r
 132         return Response(data=resp_data, status=status.HTTP_200_OK)\r
 133 \r
 134     @swagger_auto_schema(\r
 135         responses={\r
 136             status.HTTP_204_NO_CONTENT: "",\r
 137             status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),\r
 138             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()\r
 139         }\r
 140     )\r
 141     @view_safe_call_with_log(logger=logger)\r
 142     def delete(self, request, subscriptionid):\r
 143         logger.debug("SubscriptionDetailView--delete::> %s" % subscriptionid)\r
 144 \r
 145         DeleteSubscription(\r
 146             subscription_id=subscriptionid\r
 147         ).delete_single_subscription()\r
 148 \r
 149         return Response(status=status.HTTP_204_NO_CONTENT)\r