1 # Copyright (C) 2019 ZTE. All Rights Reserved.
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
7 # http://www.apache.org/licenses/LICENSE-2.0
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.
18 from drf_yasg.utils import swagger_auto_schema
19 from rest_framework import status
20 from rest_framework.response import Response
21 from rest_framework.views import APIView
23 from lcm.nf.serializers.scale_vnf_to_level_request_serializer import ScaleVnfToLevelRequestSerializer
24 from lcm.nf.serializers.response import ProblemDetailsSerializer
25 from lcm.pub.exceptions import NFLCMException, NFLCMExceptionNotFound, NFLCMExceptionConflict
26 from lcm.pub.utils.jobutil import JobUtil
27 from lcm.pub.database.models import NfInstModel
28 from lcm.nf.const import VNF_STATUS
29 from lcm.nf.biz.scale_vnf_to_level import ScaleVnfToLevel
31 logger = logging.getLogger(__name__)
34 class ScaleVnfToLevelView(APIView):
36 request_body=ScaleVnfToLevelRequestSerializer(),
38 status.HTTP_202_ACCEPTED: "Success",
39 status.HTTP_404_NOT_FOUND: ProblemDetailsSerializer(),
40 status.HTTP_409_CONFLICT: ProblemDetailsSerializer(),
41 status.HTTP_500_INTERNAL_SERVER_ERROR: "Internal error"
44 def post(self, request, instanceid):
45 logger.debug("ScaleVnfToLevel--post::> %s" % request.data)
47 scale_to_level_serializer = ScaleVnfToLevelRequestSerializer(data=request.data)
48 if not scale_to_level_serializer.is_valid():
49 raise NFLCMException(scale_to_level_serializer.errors)
51 job_id = JobUtil.create_job('NF', 'SCALE_TO_LEVEL', instanceid)
52 JobUtil.add_job_status(job_id, 0, "SCALE_VNF_TO_LEVEL_READY")
53 self.scale_pre_check(instanceid, job_id)
55 ScaleVnfToLevel(scale_to_level_serializer.data, instanceid, job_id).start()
57 response = Response(data={"jobId": job_id},
58 status=status.HTTP_202_ACCEPTED)
60 except NFLCMExceptionNotFound as e:
61 probDetail = ProblemDetailsSerializer(data={"status": status.HTTP_404_NOT_FOUND,
62 "detail": "VNF Instance not found"})
63 resp_isvalid = probDetail.is_valid()
65 raise NFLCMException(probDetail.errors)
66 return Response(data=probDetail.data,
67 status=status.HTTP_404_NOT_FOUND)
68 except NFLCMExceptionConflict as e:
69 probDetail = ProblemDetailsSerializer(data={"status": status.HTTP_409_CONFLICT,
70 "detail": "VNF Instance not in Instantiated State"})
71 resp_isvalid = probDetail.is_valid()
73 raise NFLCMException(probDetail.errors)
74 return Response(data=probDetail.data,
75 status=status.HTTP_409_CONFLICT)
76 except NFLCMException as e:
77 logger.error(e.message)
78 return Response(data={'error': '%s' % e.message},
79 status=status.HTTP_500_INTERNAL_SERVER_ERROR)
80 except Exception as e:
81 logger.error(e.message)
82 logger.error(traceback.format_exc())
83 return Response(data={'error': 'unexpected exception'},
84 status=status.HTTP_500_INTERNAL_SERVER_ERROR)
86 def scale_pre_check(self, nf_inst_id, job_id):
87 vnf_insts = NfInstModel.objects.filter(nfinstid=nf_inst_id)
88 if not vnf_insts.exists():
89 raise NFLCMExceptionNotFound("VNF nf_inst_id does not exist.")
91 vnf_insts.update(status=VNF_STATUS.SCALING)
92 JobUtil.add_job_status(job_id, 15, 'Nf scaling to level pre-check finish')
93 logger.info("Nf scaling to level pre-check finish")