lcm/lcm/nf/views/curd_vnf_views.py

   1 # Copyright 2017 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 lcm.nf.biz.delete_vnf import DeleteVnf
  20 from rest_framework import status
  21 from rest_framework.response import Response
  22 from rest_framework.views import APIView
  23
  24 from lcm.nf.biz.create_vnf import CreateVnf
  25 from lcm.nf.biz.query_vnf import QueryVnf
  26 from lcm.nf.serializers.serializers import CreateVnfReqSerializer, CreateVnfRespSerializer, VnfsInfoSerializer, \
  27     VnfInfoSerializer
  28 from lcm.pub.exceptions import NFLCMException
  29
  30 logger = logging.getLogger(__name__)
  31
  32
  33 class CreateVnfAndQueryVnfs(APIView):
  34     @swagger_auto_schema(
  35         responses={
  36             status.HTTP_200_OK: VnfsInfoSerializer(),
  37             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  38         }
  39     )
  40     def get(self, request):
  41         logger.debug("QueryMultiVnf--get::> %s" % request.data)
  42         try:
  43             resp_data = QueryVnf(request.data).query_multi_vnf()
  44
  45             vnfs_info_serializer = VnfsInfoSerializer(data=resp_data)
  46             if not vnfs_info_serializer.is_valid():
  47                 raise NFLCMException(vnfs_info_serializer.errors)
  48
  49             return Response(data=vnfs_info_serializer.data, status=status.HTTP_200_OK)
  50         except NFLCMException as e:
  51             logger.error(e.message)
  52             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  53         except Exception as e:
  54             logger.error(e.message)
  55             logger.error(traceback.format_exc())
  56             return Response(data={'error': 'Failed to get Vnfs'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  57
  58     @swagger_auto_schema(
  59         request_body=CreateVnfReqSerializer(),
  60         responses={
  61             status.HTTP_201_CREATED: CreateVnfRespSerializer(),
  62             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  63         }
  64     )
  65     def post(self, request):
  66         logger.debug("CreateVnfIdentifier--post::> %s" % request.data)
  67         try:
  68             req_serializer = CreateVnfReqSerializer(data=request.data)
  69             if not req_serializer.is_valid():
  70                 raise NFLCMException(req_serializer.errors)
  71
  72             resp = CreateVnf(req_serializer.data).do_biz()
  73             nf_inst_id = resp.get('id', 'undefined')
  74
  75             create_vnf_resp_serializer = CreateVnfRespSerializer(data={"vnfInstanceId": nf_inst_id})
  76             if not create_vnf_resp_serializer.is_valid():
  77                 raise NFLCMException(create_vnf_resp_serializer.errors)
  78             return Response(data=create_vnf_resp_serializer.data, status=status.HTTP_201_CREATED)
  79         except NFLCMException as e:
  80             logger.error(e.message)
  81             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  82         except Exception as e:
  83             logger.error(e.message)
  84             logger.error(traceback.format_exc())
  85             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  86
  87
  88 class DeleteVnfAndQueryVnf(APIView):
  89     @swagger_auto_schema(
  90         responses={
  91             status.HTTP_200_OK: VnfInfoSerializer(),
  92             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  93         }
  94     )
  95     def get(self, request, instanceid):
  96         logger.debug("QuerySingleVnf--get::> %s" % request.data)
  97         try:
  98             resp_data = QueryVnf(request.data, instanceid).query_single_vnf()
  99
 100             vnf_info_serializer = VnfInfoSerializer(data=resp_data)
 101             if not vnf_info_serializer.is_valid():
 102                 raise NFLCMException(vnf_info_serializer.errors)
 103
 104             return Response(data=vnf_info_serializer.data, status=status.HTTP_200_OK)
 105         except NFLCMException as e:
 106             logger.error(e.message)
 107             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 108         except Exception as e:
 109             logger.eror(e.message)
 110             logger.error(traceback.format_exc())
 111             return Response(data={'error': 'Failed to get Vnf(%s)' % instanceid},
 112                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 113
 114     @swagger_auto_schema(
 115         responses={
 116             status.HTTP_204_NO_CONTENT: "Successfully",
 117             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 118         }
 119     )
 120     def delete(self, request, instanceid):
 121         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
 122         try:
 123             DeleteVnf(request.data, instanceid).do_biz()
 124
 125             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 126         except NFLCMException as e:
 127             logger.error(e.message)
 128             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 129         except Exception as e:
 130             logger.error(e.message)
 131             logger.error(traceback.format_exc())
 132             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)