lcm/ns/views/sol/ns_instances_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
  17 from drf_yasg.utils import swagger_auto_schema
  18 from rest_framework import status
  19 from rest_framework.response import Response
  20 from rest_framework.views import APIView
  21
  22 from lcm.ns.serializers.sol.create_ns_serializers import CreateNsRequestSerializer
  23 from lcm.ns.serializers.sol.ns_instance import NsInstanceSerializer
  24 from lcm.pub.exceptions import BadRequestException, NSLCMException
  25 from lcm.pub.utils.values import ignore_case_get
  26 from lcm.ns.biz.ns_create import CreateNSService
  27 from lcm.ns.biz.ns_get import GetNSInfoService
  28 from lcm.ns.biz.ns_delete import DeleteNsService
  29 from lcm.ns.const import NS_INSTANCE_BASE_URI
  30 from .common import view_safe_call_with_log
  31
  32 logger = logging.getLogger(__name__)
  33
  34
  35 class NSInstancesView(APIView):
  36     """
  37     This resource represents NS instances.
  38     """
  39
  40     @swagger_auto_schema(
  41         request_body=None,
  42         responses={
  43             status.HTTP_200_OK: NsInstanceSerializer(help_text="NS instances", many=True),
  44             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  45         }
  46     )
  47     @view_safe_call_with_log(logger=logger)
  48     def get(self, request):
  49         """
  50         Query multiple NS instances
  51         :param request:
  52         :return:
  53         """
  54         logger.debug(request.query_params)
  55
  56         logger.debug("CreateNSView::get")
  57         ret = GetNSInfoService().get_ns_info(is_sol=True)  # todo
  58         logger.debug("CreateNSView::get::ret=%s", ret)
  59         resp_serializer = NsInstanceSerializer(data=ret, many=True)
  60         if not resp_serializer.is_valid():
  61             raise NSLCMException(resp_serializer.errors)
  62         return Response(data=ret, status=status.HTTP_200_OK)
  63
  64     @swagger_auto_schema(
  65         request_body=CreateNsRequestSerializer(),
  66         responses={
  67             status.HTTP_201_CREATED: NsInstanceSerializer(),
  68             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
  69         }
  70     )
  71     @view_safe_call_with_log(logger=logger)
  72     def post(self, request):
  73         """
  74         Create a NS instance resource
  75         :param request:
  76         :return:
  77         """
  78         logger.debug("Enter NSInstancesView::POST ns_instances: Header:%s, Body: %s" % (request.META, request.data))
  79
  80         globalCustomerId = request.META.get("HTTP_GLOBALCUSTOMERID", None)
  81         if not globalCustomerId:
  82             raise BadRequestException("Not found globalCustomerId in header")
  83         serviceType = request.META.get("HTTP_SERVICETYPE", None)
  84         if not serviceType:
  85             serviceType = "NetworkService"
  86         req_serializer = CreateNsRequestSerializer(data=request.data)
  87         if not req_serializer.is_valid():
  88             raise BadRequestException(req_serializer.errors)
  89         if ignore_case_get(request.data, 'test') == "test":
  90             return Response(data={'nsInstanceId': "test"}, status=status.HTTP_201_CREATED)
  91         csar_id = ignore_case_get(request.data, 'nsdId')
  92         ns_name = ignore_case_get(request.data, 'nsName')
  93         description = ignore_case_get(request.data, 'nsDescription')
  94         context = {
  95             "globalCustomerId": globalCustomerId,
  96             "serviceType": serviceType
  97         }
  98         ns_inst_id = CreateNSService(csar_id, ns_name, description, context).do_biz()
  99         logger.debug("CreateNSView::post::ret={'nsInstanceId':%s}", ns_inst_id)
 100         ns_filter = {"ns_inst_id": ns_inst_id}
 101         nsInstance = GetNSInfoService(ns_filter).get_ns_info(is_sol=True)[0]
 102         logger.debug("nsInstance: %s" % nsInstance)
 103         resp_serializer = NsInstanceSerializer(data=nsInstance)
 104         if not resp_serializer.is_valid():
 105             raise NSLCMException(resp_serializer.errors)
 106         response = Response(data=nsInstance, status=status.HTTP_201_CREATED)
 107         response["Location"] = NS_INSTANCE_BASE_URI % nsInstance['id']
 108         return response
 109
 110
 111 class IndividualNsInstanceView(APIView):
 112     """
 113     This resource represents an individual NS instance.
 114     """
 115
 116     @swagger_auto_schema(
 117         request_body=None,
 118         responses={
 119             status.HTTP_200_OK: NsInstanceSerializer(help_text="NS instances", many=False),
 120             status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
 121         }
 122     )
 123     @view_safe_call_with_log(logger=logger)
 124     def get(self, request, ns_instance_id):
 125         """
 126         The GET method retrieves information about a NS instance by reading an individual NS instance resource.
 127         :param request:
 128         :param ns_instance_id:
 129         :return:
 130         """
 131         logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
 132         ns_filter = {"ns_inst_id": ns_instance_id}
 133         ret = GetNSInfoService(ns_filter).get_ns_info(is_sol=True)
 134         if not ret:
 135             data = {'status': status.HTTP_404_NOT_FOUND, 'detail': "NS Instance ID(%s) is not founded" % ns_instance_id}
 136             return Response(data=data, status=status.HTTP_404_NOT_FOUND)
 137         logger.debug("Leave NSDetailView::get::ret=%s", ret)
 138         resp_serializer = NsInstanceSerializer(data=ret[0])
 139         if not resp_serializer.is_valid():
 140             raise NSLCMException(resp_serializer.errors)
 141         return Response(data=ret[0], status=status.HTTP_200_OK)
 142
 143     @swagger_auto_schema(
 144         request_body=None,
 145         responses={
 146             status.HTTP_204_NO_CONTENT: "HTTP_204_NO_CONTENT"
 147         }
 148     )
 149     @view_safe_call_with_log(logger=logger)
 150     def delete(self, request, ns_instance_id):
 151         """
 152         This method deletes an individual NS instance resource.
 153         :param request:
 154         :param ns_instance_id:
 155         :return:
 156         """
 157         logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
 158         DeleteNsService(ns_instance_id).do_biz()
 159         return Response(data={}, status=status.HTTP_204_NO_CONTENT)