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 from lcm.pub.exceptions import NFLCMExceptionNotFound
  31
  32 logger = logging.getLogger(__name__)
  33
  34
  35 class CreateVnfAndQueryVnfs(APIView):
  36     @swagger_auto_schema(
  37         responses={
  38             status.HTTP_200_OK: VnfInstancesSerializer(),
  39             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  40         }
  41     )
  42     def get(self, request):
  43         logger.debug("QueryMultiVnf--get::> %s" % request.data)
  44         try:
  45             resp_data = QueryVnf(request.data).query_multi_vnf()
  46             if len(resp_data) == 0:
  47                 return Response(data=[], status=status.HTTP_200_OK)
  48             vnf_instances_serializer = VnfInstancesSerializer(data=resp_data)
  49             if not vnf_instances_serializer.is_valid():
  50                 raise NFLCMException(vnf_instances_serializer.errors)
  51
  52             return Response(data=vnf_instances_serializer.data, status=status.HTTP_200_OK)
  53         except NFLCMException as e:
  54             logger.error(e.message)
  55             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  56         except Exception as e:
  57             logger.error(e.message)
  58             logger.error(traceback.format_exc())
  59             return Response(data={'error': 'Failed to get Vnfs'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  60
  61     @swagger_auto_schema(
  62         request_body=CreateVnfReqSerializer(),
  63         responses={
  64             status.HTTP_201_CREATED: VnfInstanceSerializer(),
  65             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  66         }
  67     )
  68     def post(self, request):
  69         logger.debug("CreateVnfIdentifier--post::> %s" % request.data)
  70         try:
  71             req_serializer = CreateVnfReqSerializer(data=request.data)
  72             if not req_serializer.is_valid():
  73                 raise NFLCMException(req_serializer.errors)
  74
  75             nf_inst = CreateVnf(request.data).do_biz()
  76             create_vnf_resp_serializer = VnfInstanceSerializer(data={"id": nf_inst.nfinstid,
  77                                                                      "vnfProvider": nf_inst.vendor,
  78                                                                      "vnfdVersion": nf_inst.version,
  79                                                                      "vnfPkgId": nf_inst.package_id,
  80                                                                      "instantiationState": nf_inst.status})
  81             if not create_vnf_resp_serializer.is_valid():
  82                 raise NFLCMException(create_vnf_resp_serializer.errors)
  83             return Response(data=create_vnf_resp_serializer.data, status=status.HTTP_201_CREATED)
  84         except NFLCMException as e:
  85             logger.error(e.message)
  86             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  87         except Exception as e:
  88             logger.error(e.message)
  89             logger.error(traceback.format_exc())
  90             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  91
  92
  93 class DeleteVnfAndQueryVnf(APIView):
  94     @swagger_auto_schema(
  95         responses={
  96             status.HTTP_200_OK: VnfInstanceSerializer(),
  97             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  98         }
  99     )
 100     def get(self, request, instanceid):
 101         logger.debug("QuerySingleVnf--get::> %s" % request.data)
 102         try:
 103             resp_data = QueryVnf(request.data, instanceid).query_single_vnf()
 104
 105             vnfs_instance_serializer = VnfInstanceSerializer(data=resp_data)
 106             if not vnfs_instance_serializer.is_valid():
 107                 raise NFLCMException(vnfs_instance_serializer.errors)
 108
 109             return Response(data=vnfs_instance_serializer.data, status=status.HTTP_200_OK)
 110         except NFLCMException as e:
 111             logger.error(e.message)
 112             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 113         except NFLCMExceptionNotFound as e:
 114             return Response(data={'error': '%s' % e.message}, status=status.HTTP_404_NOT_FOUND)
 115         except Exception as e:
 116             logger.error(e.message)
 117             logger.error(traceback.format_exc())
 118             return Response(data={'error': 'Failed to get Vnf(%s)' % instanceid},
 119                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 120
 121     @swagger_auto_schema(
 122         responses={
 123             status.HTTP_204_NO_CONTENT: "Successfully",
 124             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 125         }
 126     )
 127     def delete(self, request, instanceid):
 128         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
 129         try:
 130             DeleteVnf(request.data, instanceid).do_biz()
 131
 132             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 133         except NFLCMException as e:
 134             logger.error(e.message)
 135             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 136             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 137         except Exception as e:
 138             logger.error(e.message)
 139             logger.error(traceback.format_exc())
 140             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 141             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)