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# Copyright 2016 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
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.biz.ns_manual_scale import NSManualScaleService
from lcm.ns.serializers.sol.scale_ns_serializers import ScaleNsRequestSerializer
from lcm.pub.utils.jobutil import JobUtil
from lcm.jobs.enum import JOB_TYPE, JOB_ACTION
from lcm.ns.const import NS_OCC_BASE_URI
from lcm.pub.exceptions import BadRequestException
from lcm.ns.serializers.sol.pub_serializers import ProblemDetailsSerializer
from .common import view_safe_call_with_log
logger = logging.getLogger(__name__)
class ScaleNSView(APIView):
"""
This task resource represents the "Scale NS" operation.
The client can use this resource to request to scale a NS instance.
"""
@swagger_auto_schema(
request_body=ScaleNsRequestSerializer(help_text="NS Scale"),
responses={
status.HTTP_202_ACCEPTED: "HTTP_202_ACCEPTED",
status.HTTP_500_INTERNAL_SERVER_ERROR: ProblemDetailsSerializer()
}
)
@view_safe_call_with_log(logger=logger)
def post(self, request, ns_instance_id):
"""
The POST method requests to scale a NS instance resource.
:param request:
:param ns_instance_id:
:return:
"""
logger.debug("Enter ScaleNSView::post %s, %s", request.data, ns_instance_id)
req_serializer = ScaleNsRequestSerializer(data=request.data)
if not req_serializer.is_valid():
raise BadRequestException(req_serializer.errors)
job_id = JobUtil.create_job(JOB_TYPE.NS, JOB_ACTION.MANUAL_SCALE, ns_instance_id)
nsManualScaleService = NSManualScaleService(ns_instance_id, request.data, job_id)
nsManualScaleService.start()
response = Response(data={}, status=status.HTTP_202_ACCEPTED)
logger.debug("Location: %s" % nsManualScaleService.occ_id)
response["Location"] = NS_OCC_BASE_URI % nsManualScaleService.occ_id
logger.debug("Leave ScaleNSView")
return response
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