lcm/ns/views/sol/instantiate_ns_views.py

   1 # Copyright 2019 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 from drf_yasg.utils import swagger_auto_schema
  17 from rest_framework import status
  18 from rest_framework.response import Response
  19 from rest_framework.views import APIView
  20
  21 from lcm.ns.biz.ns_instant import InstantNSService
  22 from lcm.ns.serializers.sol.inst_ns_serializers import InstantNsReqSerializer
  23 from lcm.pub.exceptions import BadRequestException
  24 from lcm.ns.const import NS_OCC_BASE_URI
  25 from lcm.ns.serializers.sol.pub_serializers import ProblemDetailsSerializer
  26 from .common import view_safe_call_with_log
  27
  28 logger = logging.getLogger(__name__)
  29
  30
  31 class InstantiateNsView(APIView):
  32     """
  33     This task resource represents the "Instantiate NS" operation. The client can use this resource to instantiate a NS
  34     instance.
  35     """
  36     @swagger_auto_schema(
  37         request_body=InstantNsReqSerializer(),
  38         responses={
  39             status.HTTP_202_ACCEPTED: "HTTP_202_ACCEPTED",
  40             status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
  41         }
  42     )
  43     @view_safe_call_with_log(logger=logger)
  44     def post(self, request, ns_instance_id):
  45         """
  46         The POST method requests to instantiate a NS instance resource.
  47         :param request:
  48         :param ns_instance_id:
  49         :return:
  50         """
  51         logger.debug("Enter InstantiateNsView::post::ns_instance_id=%s", ns_instance_id)
  52         logger.debug("request.data=%s", request.data)
  53
  54         req_serializer = InstantNsReqSerializer(data=request.data)
  55         if not req_serializer.is_valid():
  56             logger.debug("request.data is not valid,error: %s" % req_serializer.errors)
  57             raise BadRequestException(req_serializer.errors)
  58
  59         InstantNsReq = request.data
  60         if "additionalParamsForVnf" in InstantNsReq:
  61             InstantNsReq['locationConstraints'] = []
  62             for additionalParamsForVnf in InstantNsReq["additionalParamsForVnf"]:
  63                 vnf = {}
  64                 vnf['vnfProfileId'] = additionalParamsForVnf['vnfProfileId']
  65                 vnf['locationConstraints'] = {'vimId': additionalParamsForVnf['additionalParams']['vimId']}
  66                 vnf['additionalParams'] = additionalParamsForVnf['additionalParams']
  67                 InstantNsReq['locationConstraints'].append(vnf)
  68
  69         ack = InstantNSService(ns_instance_id, request.data).do_biz()
  70         nsLcmOpOccId = ack.get('occ_id')
  71         if not nsLcmOpOccId:
  72             return Response(data=ack['data'], status=ack['status'])
  73         response = Response(data=ack['data'], status=status.HTTP_202_ACCEPTED)
  74         logger.debug("Location: %s" % ack['occ_id'])
  75         response["Location"] = NS_OCC_BASE_URI % nsLcmOpOccId
  76         logger.debug("Leave InstantiateNsView::post::ack=%s", ack)
  77         return response