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