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
  17 from drf_yasg.utils import swagger_auto_schema
  18 from lcm.nf.biz.delete_vnf import DeleteVnf
  19 from rest_framework import status
  20 from rest_framework.response import Response
  21 from rest_framework.views import APIView
  22
  23 from lcm.nf.biz.create_vnf import CreateVnf
  24 from lcm.nf.biz.query_vnf import QueryVnf
  25 from lcm.nf.biz.update_vnf import UpdateVnf
  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.nf.serializers.vnf_info_modifications import VnfInfoModificationsSerializer
  30 from lcm.pub.utils.jobutil import JobUtil
  31 from lcm.pub.exceptions import NFLCMException
  32 from lcm.pub.exceptions import NFLCMExceptionNotFound
  33 from lcm.pub.database.models import NfInstModel
  34 from lcm.nf.const import VNF_STATUS
  35 from .common import view_safe_call_with_log
  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     @view_safe_call_with_log(logger=logger)
  48     def get(self, request):
  49         logger.debug("QueryMultiVnf--get::> %s" % request.data)
  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
  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     @view_safe_call_with_log(logger=logger)
  67     def post(self, request):
  68         logger.debug("CreateVnfIdentifier--post::> %s" % request.data)
  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(request.data).do_biz()
  74         create_vnf_resp_serializer = VnfInstanceSerializer(
  75             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
  84
  85 class DeleteVnfAndQueryVnf(APIView):
  86     @swagger_auto_schema(
  87         responses={
  88             status.HTTP_200_OK: VnfInstanceSerializer(),
  89             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
  90         }
  91     )
  92     @view_safe_call_with_log(logger=logger)
  93     def get(self, request, instanceid):
  94         logger.debug("QuerySingleVnf--get::> %s" % request.data)
  95         resp_data = QueryVnf(request.data, instanceid).query_single_vnf()
  96
  97         vnfs_instance_serializer = VnfInstanceSerializer(data=resp_data)
  98         if not vnfs_instance_serializer.is_valid():
  99             raise NFLCMException(vnfs_instance_serializer.errors)
 100
 101         return Response(data=vnfs_instance_serializer.data, status=status.HTTP_200_OK)
 102
 103     @swagger_auto_schema(
 104         responses={
 105             status.HTTP_204_NO_CONTENT: "Successfully",
 106             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 107         }
 108     )
 109     @view_safe_call_with_log(logger=logger)
 110     def delete(self, request, instanceid):
 111         logger.debug("DeleteVnfIdentifier--delete::> %s" % request.data)
 112
 113         DeleteVnf(request.data, instanceid).do_biz()
 114
 115         return Response(data=None, status=status.HTTP_204_NO_CONTENT)
 116
 117     @swagger_auto_schema(
 118         request_body=VnfInfoModificationsSerializer(),
 119         responses={
 120             status.HTTP_202_ACCEPTED: "Successfully",
 121             status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
 122         }
 123     )
 124     @view_safe_call_with_log(logger=logger)
 125     def patch(self, request, instanceid):
 126         logger.debug("UpdateSingleVnf--patch::> %s, %s", instanceid, request.data)
 127
 128         upd_vnf_serializer = VnfInfoModificationsSerializer(data=request.data)
 129         if not upd_vnf_serializer.is_valid():
 130             raise NFLCMException(upd_vnf_serializer.errors)
 131
 132         job_id = JobUtil.create_job('NF', 'UPDATE', instanceid)
 133         JobUtil.add_job_status(job_id, 0, "UPDATE_VNF_READY")
 134
 135         vnf_insts = NfInstModel.objects.filter(nfinstid=instanceid)
 136         if not vnf_insts.exists():
 137             raise NFLCMExceptionNotFound("VNF(%s) does not exist." % instanceid)
 138         vnf_insts.update(status=VNF_STATUS.UPDATING)
 139
 140         JobUtil.add_job_status(job_id, 15, 'Nf updating pre-check finish')
 141         UpdateVnf(request.data, instanceid, job_id).start()
 142
 143         return Response(data=None, status=status.HTTP_202_ACCEPTED)