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_occ import VNFLCMOpOccSerializer
  26 from lcm.nf.serializers.vnf_lcm_op_occs import VNFLCMOpOccsSerializer
  27 from lcm.pub.exceptions import NFLCMException
  28
  29 logger = logging.getLogger(__name__)
  30 EXCLUDE_DEFAULT = ['operationParams', 'error', 'resourceChanges', 'changedInfo', 'changedExtConnectivity']
  31 VALID_FILTERS = ["all_fields", "fields", "exclude_fields", "exclude_default",
  32                  "id", "operationState", "stateEnteredTime", "startTime",
  33                  "vnfInstanceId", "grantId", "operation"]
  34
  35
  36 def get_problem_details_serializer(status_code, error_message):
  37     problem_details = {
  38         "status": status_code,
  39         "detail": error_message
  40     }
  41     problem_details_serializer = ProblemDetailsSerializer(data=problem_details)
  42     problem_details_serializer.is_valid()
  43     return problem_details_serializer
  44
  45
  46 class QueryMultiVnfLcmOpOccs(APIView):
  47     @swagger_auto_schema(
  48         responses={
  49             status.HTTP_200_OK: VNFLCMOpOccsSerializer(),
  50             status.HTTP_400_BAD_REQUEST: ProblemDetailsSerializer(),
  51             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
  52         }
  53     )
  54     def get(self, request):
  55         logger.debug("QueryMultiVnfLcmOpOccs--get::> %s" % request.query_params)
  56         try:
  57             if request.query_params and not set(request.query_params).issubset(set(VALID_FILTERS)):
  58                 problem_details_serializer = get_problem_details_serializer(status.HTTP_400_BAD_REQUEST, "Not a valid filter")
  59                 return Response(data=problem_details_serializer.data, status=status.HTTP_400_BAD_REQUEST)
  60             resp_data = QueryVnfLcmOpOcc(request.query_params).query_multi_vnf_lcm_op_occ()
  61
  62             vnf_lcm_op_occs_serializer = VNFLCMOpOccsSerializer(data=resp_data)
  63             if not vnf_lcm_op_occs_serializer.is_valid():
  64                 raise NFLCMException(vnf_lcm_op_occs_serializer.errors)
  65
  66             logger.debug("QueryMultiVnfLcmOpOccs--get::> Remove default fields if exclude_default" +
  67                          " is specified")
  68             # TODO(bharath): Add support for "fields", "exclude_fields" in query parameters
  69             if 'exclude_default' in request.query_params.keys():
  70                 for field in EXCLUDE_DEFAULT:
  71                     for lcm_op in vnf_lcm_op_occs_serializer.data:
  72                         del lcm_op[field]
  73             return Response(data=vnf_lcm_op_occs_serializer.data, status=status.HTTP_200_OK)
  74         except NFLCMException as e:
  75             logger.error(e.message)
  76             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
  77             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  78
  79         except Exception as e:
  80             logger.error(e.message)
  81             logger.error(traceback.format_exc())
  82             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
  83             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  84
  85
  86 class QuerySingleVnfLcmOpOcc(APIView):
  87     @swagger_auto_schema(
  88         responses={
  89             status.HTTP_200_OK: VNFLCMOpOccSerializer(),
  90             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
  91         }
  92     )
  93     def get(self, request, lcmopoccid):
  94         logger.debug("QuerySingleVnfLcmOpOcc--get::> %s" % request.query_params)
  95         try:
  96             resp_data = QueryVnfLcmOpOcc(request.query_params, lcm_op_occ_id=lcmopoccid).query_single_vnf_lcm_op_occ()
  97
  98             vnf_lcm_op_occ_serializer = VNFLCMOpOccSerializer(data=resp_data)
  99             if not vnf_lcm_op_occ_serializer.is_valid():
 100                 raise NFLCMException(vnf_lcm_op_occ_serializer.errors)
 101
 102             return Response(data=vnf_lcm_op_occ_serializer.data, status=status.HTTP_200_OK)
 103         except NFLCMException as e:
 104             logger.error(e.message)
 105             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
 106             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 107         except Exception as e:
 108             logger.error(e.message)
 109             logger.error(traceback.format_exc())
 110             problem_details_serializer = get_problem_details_serializer(status.HTTP_500_INTERNAL_SERVER_ERROR, e.message)
 111             return Response(data=problem_details_serializer.data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)