lcm/lcm/nf/views/lcm_op_occs_view.py

   1 # Copyright (C) 2018 Verizon. All Rights Reserved
   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.nf.biz.query_vnf_lcm_op_occ import QueryVnfLcmOpOcc
  24 from lcm.nf.serializers.response import ProblemDetailsSerializer
  25 from lcm.nf.serializers.vnf_lcm_op_occs import VNFLCMOpOccsSerializer
  26 from lcm.pub.exceptions import NFLCMException
  27
  28 logger = logging.getLogger(__name__)
  29 EXCLUDE_DEFAULT = ['operationParams', 'error', 'resourceChanges', 'changedInfo', 'changedExtConnectivity']
  30 VALID_FILTERS = ["all_fields", "fields", "exclude_fields", "exclude_default",
  31                  "id", "operationState", "stateEnteredTime", "startTime",
  32                  "vnfInstanceId", "grantId", "operation"]
  33
  34
  35 def get_problem_details_serializer(status_code, error_message):
  36     problem_details = {
  37         "status": status_code,
  38         "detail": error_message
  39     }
  40     problem_details_serializer = ProblemDetailsSerializer(data=problem_details)
  41     problem_details_serializer.is_valid()
  42     return problem_details_serializer
  43
  44
  45 class QueryMultiVnfLcmOpOccs(APIView):
  46     @swagger_auto_schema(
  47         responses={
  48             status.HTTP_200_OK: VNFLCMOpOccsSerializer(),
  49             status.HTTP_400_BAD_REQUEST: ProblemDetailsSerializer(),
  50             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
  51         }
  52     )
  53     def get(self, request):
  54         logger.debug("QueryMultiVnfLcmOpOccs--get::> %s" % request.query_params)
  55         try:
  56             if request.query_params and not set(request.query_params).issubset(set(VALID_FILTERS)):
  57                 problem_details_serializer = get_problem_details_serializer(status.HTTP_400_BAD_REQUEST, "Not a valid filter")
  58                 return Response(data=problem_details_serializer.data, status=status.HTTP_400_BAD_REQUEST)
  59             resp_data = QueryVnfLcmOpOcc(request.query_params).query_multi_vnf_lcm_op_occ()
  60
  61             vnf_lcm_op_occs_serializer = VNFLCMOpOccsSerializer(data=resp_data)
  62             if not vnf_lcm_op_occs_serializer.is_valid():
  63                 raise NFLCMException(vnf_lcm_op_occs_serializer.errors)
  64
  65             logger.debug("QueryMultiVnfLcmOpOccs--get::> Remove default fields if exclude_default" +
  66                          " is specified")
  67             # TODO(bharath): Add support for "fields", "exclude_fields" in query parameters
  68             if 'exclude_default' in request.query_params.keys():
  69                 for field in EXCLUDE_DEFAULT:
  70                     for lcm_op in vnf_lcm_op_occs_serializer.data:
  71                         del lcm_op[field]
  72             return Response(data=vnf_lcm_op_occs_serializer.data, status=status.HTTP_200_OK)
  73         except NFLCMException as e:
  74             logger.error(e.message)
  75             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
  76             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  77
  78         except Exception as e:
  79             logger.error(e.message)
  80             logger.error(traceback.format_exc())
  81             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
  82             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)