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.create_vnf_req import CreateVnfReqSerializer
  27 from lcm.nf.serializers.vnf_instance import VnfInstanceSerializer
  28 from lcm.nf.serializers.vnf_instances import VnfInstancesSerializer
  29 from lcm.pub.exceptions import NFLCMException
  30
  31 logger = logging.getLogger(__name__)
  32
  33
  34 class CreateVnfAndQueryVnfs(APIView):
  35     @swagger_auto_schema(
  36         responses={
  37             status.HTTP_200_OK: VnfInstancesSerializer(),
  38             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  39         }
  40     )
  41     def get(self, request):
  42         logger.debug("QueryMultiVnf--get::> %s" % request.data)
  43         try:
  44             resp_data = QueryVnf(request.data).query_multi_vnf()
  45             if len(resp_data) == 0:
  46                 return Response(data=[], status=status.HTTP_200_OK)
  47             vnf_instances_serializer = VnfInstancesSerializer(data=resp_data)
  48             if not vnf_instances_serializer.is_valid():
  49                 raise NFLCMException(vnf_instances_serializer.errors)
  50
  51             return Response(data=vnf_instances_serializer.data, status=status.HTTP_200_OK)
  52         except NFLCMException as e:
  53             logger.error(e.message)
  54             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  55         except Exception as e:
  56             logger.error(e.message)
  57             logger.error(traceback.format_exc())
  58             return Response(data={'error': 'Failed to get Vnfs'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  59
  60     @swagger_auto_schema(
  61         request_body=CreateVnfReqSerializer(),
  62         responses={
  63             status.HTTP_201_CREATED: VnfInstanceSerializer(),
  64             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  65         }
  66     )
  67     def post(self, request):
  68         logger.debug("CreateVnfIdentifier--post::> %s" % request.data)
  69         try:
  70             req_serializer = CreateVnfReqSerializer(data=request.data)
  71             if not req_serializer.is_valid():
  72                 raise NFLCMException(req_serializer.errors)
  73
  74             nf_inst = CreateVnf(request.data).do_biz()
  75             create_vnf_resp_serializer = VnfInstanceSerializer(data={"id": nf_inst.nfinstid,
  76                                                                      "vnfProvider": nf_inst.vendor,
  77                                                                      "vnfdVersion": nf_inst.version,
  78                                                                      "vnfPkgId": nf_inst.package_id,
  79                                                                      "instantiationState": nf_inst.status})
  80             if not create_vnf_resp_serializer.is_valid():
  81                 raise NFLCMException(create_vnf_resp_serializer.errors)
  82             return Response(data=create_vnf_resp_serializer.data, status=status.HTTP_201_CREATED)
  83         except NFLCMException as e:
  84             logger.error(e.message)
  85             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  86         except Exception as e:
  87             logger.error(e.message)
  88             logger.error(traceback.format_exc())
  89             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  90
  91
  92 class DeleteVnfAndQueryVnf(APIView):
  93     @swagger_auto_schema(
  94         responses={
  95             status.HTTP_200_OK: VnfInstanceSerializer(),
  96             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  97         }
  98     )
  99     def get(self, request, instanceid):
 100         logger.debug("QuerySingleVnf--get::> %s" % request.data)
 101         try:
 102             resp_data = QueryVnf(request.data, instanceid).query_single_vnf()
 103
 104             vnfs_instance_serializer = VnfInstanceSerializer(data=resp_data)
 105             if not vnfs_instance_serializer.is_valid():
 106                 raise NFLCMException(vnfs_instance_serializer.errors)
 107
 108             return Response(data=vnfs_instance_serializer.data, status=status.HTTP_200_OK)
 109         except NFLCMException as e:
 110             logger.error(e.message)
 111             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 112         except Exception as e:
 113             logger.error(e.message)
 114             logger.error(traceback.format_exc())
 115             return Response(data={'error': 'Failed to get Vnf(%s)' % instanceid},
 116                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 117
 118     @swagger_auto_schema(
 119         responses={
 120             status.HTTP_204_NO_CONTENT: "Successfully",
 121             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 122         }
 123     )
 124     def delete(self, request, instanceid):
 125         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
 126         try:
 127             DeleteVnf(request.data, instanceid).do_biz()
 128
 129             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 130         except NFLCMException as e:
 131             logger.error(e.message)
 132             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 133             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 134         except Exception as e:
 135             logger.error(e.message)
 136             logger.error(traceback.format_exc())
 137             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 138             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)