lcm/ns_vnfs/views/vnf_views.py

   1 # Copyright 2018 ZTE Corporation.
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import logging
  16 import traceback
  17
  18 from drf_yasg.utils import swagger_auto_schema
  19 from rest_framework import status
  20 from rest_framework.response import Response
  21 from rest_framework.views import APIView
  22
  23 from lcm.ns_vnfs.biz.grant_vnf import GrantVnf
  24 from lcm.ns_vnfs.serializers.grant_vnf_serializer import GrantRequestSerializer
  25 from lcm.ns_vnfs.serializers.grant_vnf_serializer import GrantSerializer
  26 from lcm.ns_vnfs.biz.handle_notification import HandleVnfLcmOocNotification, HandleVnfIdentifierCreationNotification, HandleVnfIdentifierDeletionNotification
  27 from lcm.ns_vnfs.serializers.grant_vnf_serializer import VnfLcmOperationOccurrenceNotificationSerializer, VnfIdentifierCreationNotificationSerializer, VnfIdentifierDeletionNotificationSerializer
  28
  29 logger = logging.getLogger(__name__)
  30
  31
  32 class VnfGrantView(APIView):
  33     @swagger_auto_schema(
  34         request_body=GrantRequestSerializer(),
  35         responses={
  36             status.HTTP_201_CREATED: GrantSerializer(
  37                 help_text="The grant was created successfully (synchronous mode)."
  38             ),
  39             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  40         }
  41     )
  42     def post(self, request):
  43         logger.debug("VnfGrantView Post: %s" % request.data)
  44         try:
  45             grant_request = GrantRequestSerializer(data=request.data)
  46             if not grant_request.is_valid():
  47                 raise Exception(grant_request.errors)
  48
  49             grant_resp = GrantVnf(request.data).exec_grant()
  50
  51             resp_serializer = GrantSerializer(data=grant_resp)
  52             if not resp_serializer.is_valid():
  53                 raise Exception(resp_serializer.errors)
  54
  55             return Response(data=resp_serializer.data, status=status.HTTP_201_CREATED)
  56         except Exception as e:
  57             logger.error(traceback.format_exc())
  58             logger.error("Exception in VnfGrant: %s", e.message)
  59             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  60
  61
  62 class VnfNotifyView(APIView):
  63     @swagger_auto_schema(
  64         request_body=VnfLcmOperationOccurrenceNotificationSerializer(
  65             help_text="A notification about lifecycle changes triggered by a VNF LCM operation occurrence."
  66         ),
  67         responses={
  68             status.HTTP_204_NO_CONTENT: "The notification was delivered successfully.",
  69             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  70         }
  71     )
  72     def post(self, request, vnfmId, vnfInstanceId):
  73         logger.debug("VnfNotifyView post: %s" % request.data)
  74         logger.debug("vnfmId: %s vnfInstanceId: %s", vnfmId, vnfInstanceId)
  75         notification_type = request.data['notificationType']
  76         try:
  77             if notification_type == 'VnfLcmOperationOccurrenceNotification':
  78                 notification = VnfLcmOperationOccurrenceNotificationSerializer(data=request.data)
  79                 if not notification.is_valid():
  80                     logger.warn(notification.errors)
  81                 HandleVnfLcmOocNotification(vnfmId, vnfInstanceId, notification.data).do_biz()
  82             elif notification_type == 'VnfIdentifierCreationNotification':
  83                 notification = VnfIdentifierCreationNotificationSerializer(data=request.data)
  84                 if not notification.is_valid():
  85                     logger.warn(notification.errors)
  86                 HandleVnfIdentifierCreationNotification(vnfmId, vnfInstanceId, notification.data).do_biz()
  87             elif notification_type == 'VnfIdentifierDeletionNotification':
  88                 notification = VnfIdentifierDeletionNotificationSerializer(data=request.data)
  89                 if not notification.is_valid():
  90                     logger.warn(notification.errors)
  91                 HandleVnfIdentifierDeletionNotification(vnfmId, vnfInstanceId, notification.data).do_biz()
  92             else:
  93                 raise Exception('Unexpected noitifcation type value.')
  94             return Response(data={}, status=status.HTTP_204_NO_CONTENT)
  95         except Exception as e:
  96             logger.error(traceback.format_exc())
  97             logger.error("Exception in VnfLcmOoc Notification: %s", e.message)
  98             return Response(data={'error': e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  99
 100     @swagger_auto_schema(
 101         responses={
 102             status.HTTP_204_NO_CONTENT: "The notification endpoint was tested successfully.",
 103             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
 104         }
 105     )
 106     def get(self, request, vnfmId, vnfInstanceId):
 107         logger.debug("VnfNotifyView get")
 108         logger.debug("vnfmId: %s vnfInstanceId: %s", vnfmId, vnfInstanceId)
 109         return Response(data={}, status=status.HTTP_204_NO_CONTENT)