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# Copyright (C) 2018 Verizon. All Rights Reserved.
#
# 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.nf.biz.operate_vnf import OperateVnf
from lcm.nf.serializers.operate_vnf_req import OperateVnfRequestSerializer
from lcm.nf.serializers.response import ProblemDetailsSerializer
from lcm.pub.exceptions import NFLCMException, NFLCMExceptionNotFound, NFLCMExceptionConflict
from lcm.pub.utils.jobutil import JobUtil
from lcm.pub.database.models import NfInstModel
from lcm.nf.const import VNF_STATUS
logger = logging.getLogger(__name__)
class OperateVnfView(APIView):
@swagger_auto_schema(
request_body=OperateVnfRequestSerializer(),
responses={
status.HTTP_202_ACCEPTED: "Success",
status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),
status.HTTP_409_CONFLICT: ProblemDetailsSerializer(),
status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
}
)
def post(self, request, instanceid):
logger.debug("OperateVnf--post::> %s" % request.data)
try:
operate_vnf_request_serializer = OperateVnfRequestSerializer(data=request.data)
if not operate_vnf_request_serializer.is_valid():
raise NFLCMException(operate_vnf_request_serializer.errors)
job_id = JobUtil.create_job('NF', 'OPERATE', instanceid)
JobUtil.add_job_status(job_id, 0, "OPERATE_VNF_READY")
self.operate_pre_check(instanceid, job_id)
OperateVnf(operate_vnf_request_serializer.data, instanceid, job_id).start()
response = Response(data=None, status=status.HTTP_202_ACCEPTED)
response["Location"] = "/vnf_lc_ops/%s" % job_id
return response
except NFLCMExceptionNotFound as e:
probDetail = ProblemDetailsSerializer(data={"status": 404, "detail": "VNF Instance not found"})
resp_isvalid = probDetail.is_valid()
if not resp_isvalid:
raise NFLCMException(probDetail.errors)
return Response(data=probDetail.data, status=status.HTTP_404_NOT_FOUND)
except NFLCMExceptionConflict as e:
probDetail = ProblemDetailsSerializer(data={"status": 409, "detail": "VNF Instance not in Instantiated State"})
resp_isvalid = probDetail.is_valid()
if not resp_isvalid:
raise NFLCMException(probDetail.errors)
return Response(data=probDetail.data, status=status.HTTP_409_CONFLICT)
except NFLCMException as e:
logger.error(e.message)
return Response(data={'error': '%s' % e.message}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
return Response(data={'error': 'unexpected exception'}, status=status.HTTP_500_INTERNAL_SERVER_ERROR)
def operate_pre_check(self, nfInstId, jobId):
vnf_insts = NfInstModel.objects.filter(nfinstid=nfInstId)
if not vnf_insts.exists():
raise NFLCMExceptionNotFound("VNF nf_inst_id does not exist.")
if vnf_insts[0].status != 'INSTANTIATED':
raise NFLCMExceptionConflict("VNF instantiationState is not INSTANTIATED.")
NfInstModel.objects.filter(nfinstid=nfInstId).update(status=VNF_STATUS.OPERATING)
JobUtil.add_job_status(jobId, 15, 'Nf operating pre-check finish')
logger.info("Nf operating pre-check finish")
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