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.biz.update_vnf import UpdateVnf
  27 from lcm.nf.serializers.create_vnf_req import CreateVnfReqSerializer
  28 from lcm.nf.serializers.vnf_instance import VnfInstanceSerializer
  29 from lcm.nf.serializers.vnf_instances import VnfInstancesSerializer
  30 from lcm.nf.serializers.vnf_info_modifications import VnfInfoModificationsSerializer
  31 from lcm.pub.utils.jobutil import JobUtil
  32 from lcm.pub.exceptions import NFLCMException
  33 from lcm.pub.exceptions import NFLCMExceptionNotFound
  34 from lcm.pub.database.models import NfInstModel
  35 from lcm.nf.const import VNF_STATUS
  36
  37 logger = logging.getLogger(__name__)
  38
  39
  40 class CreateVnfAndQueryVnfs(APIView):
  41     @swagger_auto_schema(
  42         responses={
  43             status.HTTP_200_OK: VnfInstancesSerializer(),
  44             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  45         }
  46     )
  47     def get(self, request):
  48         logger.debug("QueryMultiVnf--get::> %s" % request.data)
  49         try:
  50             resp_data = QueryVnf(request.data).query_multi_vnf()
  51             if len(resp_data) == 0:
  52                 return Response(data=[], status=status.HTTP_200_OK)
  53             vnf_instances_serializer = VnfInstancesSerializer(data=resp_data)
  54             if not vnf_instances_serializer.is_valid():
  55                 raise NFLCMException(vnf_instances_serializer.errors)
  56
  57             return Response(data=vnf_instances_serializer.data, status=status.HTTP_200_OK)
  58         except NFLCMException as e:
  59             logger.error(e.message)
  60             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  61         except Exception as e:
  62             logger.error(e.message)
  63             logger.error(traceback.format_exc())
  64             return Response(data={'error': 'Failed to get Vnfs'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  65
  66     @swagger_auto_schema(
  67         request_body=CreateVnfReqSerializer(),
  68         responses={
  69             status.HTTP_201_CREATED: VnfInstanceSerializer(),
  70             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  71         }
  72     )
  73     def post(self, request):
  74         logger.debug("CreateVnfIdentifier--post::> %s" % request.data)
  75         try:
  76             req_serializer = CreateVnfReqSerializer(data=request.data)
  77             if not req_serializer.is_valid():
  78                 raise NFLCMException(req_serializer.errors)
  79
  80             nf_inst = CreateVnf(request.data).do_biz()
  81             create_vnf_resp_serializer = VnfInstanceSerializer(data={"id": nf_inst.nfinstid,
  82                                                                      "vnfProvider": nf_inst.vendor,
  83                                                                      "vnfdVersion": nf_inst.version,
  84                                                                      "vnfPkgId": nf_inst.package_id,
  85                                                                      "instantiationState": nf_inst.status})
  86             if not create_vnf_resp_serializer.is_valid():
  87                 raise NFLCMException(create_vnf_resp_serializer.errors)
  88             return Response(data=create_vnf_resp_serializer.data, status=status.HTTP_201_CREATED)
  89         except NFLCMException as e:
  90             logger.error(e.message)
  91             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  92         except Exception as e:
  93             logger.error(e.message)
  94             logger.error(traceback.format_exc())
  95             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
  96
  97
  98 class DeleteVnfAndQueryVnf(APIView):
  99     @swagger_auto_schema(
 100         responses={
 101             status.HTTP_200_OK: VnfInstanceSerializer(),
 102             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 103         }
 104     )
 105     def get(self, request, instanceid):
 106         logger.debug("QuerySingleVnf--get::> %s" % request.data)
 107         try:
 108             resp_data = QueryVnf(request.data, instanceid).query_single_vnf()
 109
 110             vnfs_instance_serializer = VnfInstanceSerializer(data=resp_data)
 111             if not vnfs_instance_serializer.is_valid():
 112                 raise NFLCMException(vnfs_instance_serializer.errors)
 113
 114             return Response(data=vnfs_instance_serializer.data, status=status.HTTP_200_OK)
 115         except NFLCMException as e:
 116             logger.error(e.message)
 117             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 118         except NFLCMExceptionNotFound as e:
 119             return Response(data={'error': '%s' % e.message}, status=status.HTTP_404_NOT_FOUND)
 120         except Exception as e:
 121             logger.error(e.message)
 122             logger.error(traceback.format_exc())
 123             return Response(data={'error': 'Failed to get Vnf(%s)' % instanceid},
 124                             status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 125
 126     @swagger_auto_schema(
 127         responses={
 128             status.HTTP_204_NO_CONTENT: "Successfully",
 129             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 130         }
 131     )
 132     def delete(self, request, instanceid):
 133         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
 134         try:
 135             DeleteVnf(request.data, instanceid).do_biz()
 136
 137             return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 138         except NFLCMException as e:
 139             logger.error(e.message)
 140             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 141             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 142         except Exception as e:
 143             logger.error(e.message)
 144             logger.error(traceback.format_exc())
 145             logger.debug('Delete VNF instance[%s] failed' % instanceid)
 146             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 147
 148     @swagger_auto_schema(
 149         request_body=VnfInfoModificationsSerializer(),
 150         responses={
 151             status.HTTP_202_ACCEPTED: "Successfully",
 152             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 153         }
 154     )
 155     def patch(self, request, instanceid):
 156         logger.debug("UpdateSingleVnf--patch::> %s, %s", instanceid, request.data)
 157         try:
 158             upd_vnf_serializer = VnfInfoModificationsSerializer(data=request.data)
 159             if not upd_vnf_serializer.is_valid():
 160                 raise NFLCMException(upd_vnf_serializer.errors)
 161
 162             job_id = JobUtil.create_job('NF', 'UPDATE', instanceid)
 163             JobUtil.add_job_status(job_id, 0, "UPDATE_VNF_READY")
 164
 165             vnf_insts = NfInstModel.objects.filter(nfinstid=instanceid)
 166             if not vnf_insts.exists():
 167                 raise NFLCMExceptionNotFound("VNF(%s) does not exist." % instanceid)
 168             vnf_insts.update(status=VNF_STATUS.UPDATING)
 169
 170             JobUtil.add_job_status(job_id, 15, 'Nf updating pre-check finish')
 171             UpdateVnf(request.data, instanceid, job_id).start()
 172
 173             return Response(data=None, status=status.HTTP_202_ACCEPTED)
 174         except NFLCMException as e:
 175             logger.error(e.message)
 176             logger.error('Update VNF instance[%s] failed' % instanceid)
 177             return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
 178         except Exception as e:
 179             logger.error(e.message)
 180             logger.error(traceback.format_exc())
 181             logger.error('Update VNF instance[%s] failed' % instanceid)
 182             return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)