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# Copyright 2019 ZTE Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
import traceback
from drf_yasg.utils import swagger_auto_schema
from rest_framework import status
from rest_framework.response import Response
from rest_framework.views import APIView
from lcm.ns.serializers.sol.create_ns_serializers import CreateNsRequestSerializer
from lcm.ns.serializers.sol.ns_instance import NsInstanceSerializer
from lcm.pub.exceptions import BadRequestException, NSLCMException
from lcm.pub.utils.values import ignore_case_get
from lcm.ns.biz.ns_create import CreateNSService
from lcm.ns.biz.ns_get import GetNSInfoService
from lcm.ns.biz.ns_delete import DeleteNsService
from lcm.ns.const import NS_INSTANCE_BASE_URI
logger = logging.getLogger(__name__)
class NSInstancesView(APIView):
@swagger_auto_schema(
request_body=None,
responses={
status.HTTP_200_OK: NsInstanceSerializer(help_text="NS instances", many=True),
status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
}
)
def get(self, request):
logger.debug(request.query_params)
try:
logger.debug("CreateNSView::get")
ret = GetNSInfoService().get_ns_info(is_sol=True) # todo
logger.debug("CreateNSView::get::ret=%s", ret)
resp_serializer = NsInstanceSerializer(data=ret, many=True)
if not resp_serializer.is_valid():
raise NSLCMException(resp_serializer.errors)
return Response(data=resp_serializer.data, status=status.HTTP_200_OK)
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Exception in GetNS: %s", e.message)
data = {'status': status.HTTP_500_INTERNAL_SERVER_ERROR, 'detail': e.message}
return Response(data=data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
@swagger_auto_schema(
request_body=CreateNsRequestSerializer(),
responses={
status.HTTP_201_CREATED: NsInstanceSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
}
)
def post(self, request):
logger.debug("Enter NSInstancesView::POST ns_instances: Header:%s, Body: %s" % (request.META, request.data))
try:
globalCustomerId = request.META.get("HTTP_GLOBALCUSTOMERID", None)
if not globalCustomerId:
raise BadRequestException("Not found globalCustomerId in header")
serviceType = request.META.get("HTTP_SERVICETYPE", None)
if not serviceType:
serviceType = "NetworkService"
req_serializer = CreateNsRequestSerializer(data=request.data)
if not req_serializer.is_valid():
raise BadRequestException(req_serializer.errors)
if ignore_case_get(request.data, 'test') == "test":
return Response(data={'nsInstanceId': "test"}, status=status.HTTP_201_CREATED)
csar_id = ignore_case_get(request.data, 'nsdId')
ns_name = ignore_case_get(request.data, 'nsName')
description = ignore_case_get(request.data, 'nsDescription')
context = {
"globalCustomerId": globalCustomerId,
"serviceType": serviceType
}
ns_inst_id = CreateNSService(csar_id, ns_name, description, context).do_biz()
logger.debug("CreateNSView::post::ret={'nsInstanceId':%s}", ns_inst_id)
ns_filter = {"ns_inst_id": ns_inst_id}
nsInstance = GetNSInfoService(ns_filter).get_ns_info(is_sol=True)[0]
logger.debug("nsInstance: %s" % nsInstance)
resp_serializer = NsInstanceSerializer(data=nsInstance)
if not resp_serializer.is_valid():
raise NSLCMException(resp_serializer.errors)
response = Response(data=resp_serializer.data, status=status.HTTP_201_CREATED)
response["Location"] = NS_INSTANCE_BASE_URI % nsInstance['id']
return response
except BadRequestException as e:
logger.error("Exception in CreateNS: %s", e.message)
data = {'status': status.HTTP_400_BAD_REQUEST, 'detail': e.message}
return Response(data=data, status=status.HTTP_400_BAD_REQUEST)
except Exception as e:
logger.error("Exception in CreateNS: %s", e.message)
data = {'status': status.HTTP_500_INTERNAL_SERVER_ERROR, 'detail': e.message}
return Response(data=data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
class IndividualNsInstanceView(APIView):
@swagger_auto_schema(
request_body=None,
responses={
status.HTTP_200_OK: NsInstanceSerializer(help_text="NS instances", many=False),
status.HTTP_500_INTERNAL_SERVER_ERROR: "Inner error"
}
)
def get(self, request, ns_instance_id):
try:
logger.debug("Enter NSDetailView::get ns(%s)", ns_instance_id)
ns_filter = {"ns_inst_id": ns_instance_id}
ret = GetNSInfoService(ns_filter).get_ns_info(is_sol=True)
if not ret:
data = {'status': status.HTTP_404_NOT_FOUND, 'detail': "NS Instance ID(%s) is not founded" % ns_instance_id}
return Response(data=data, status=status.HTTP_404_NOT_FOUND)
logger.debug("Leave NSDetailView::get::ret=%s", ret)
resp_serializer = NsInstanceSerializer(data=ret[0])
if not resp_serializer.is_valid():
raise NSLCMException(resp_serializer.errors)
return Response(data=resp_serializer.data, status=status.HTTP_200_OK)
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Exception in GetNSDetail: %s", e.message)
data = {'status': status.HTTP_500_INTERNAL_SERVER_ERROR, 'detail': e.message}
return Response(data=data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
@swagger_auto_schema(
request_body=None,
responses={
status.HTTP_204_NO_CONTENT: "HTTP_204_NO_CONTENT"
}
)
def delete(self, request, ns_instance_id):
try:
logger.debug("Enter NSDetailView::delete ns(%s)", ns_instance_id)
DeleteNsService(ns_instance_id).do_biz()
return Response(data={}, status=status.HTTP_204_NO_CONTENT)
except Exception as e:
logger.error(traceback.format_exc())
logger.error("Exception in delete NS: %s", e.message)
data = {'status': status.HTTP_500_INTERNAL_SERVER_ERROR, 'detail': e.message}
return Response(data=data, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
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