1 # Copyright 2017 ZTE Corporation.
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.
20 from lcm.ns.biz.scaleaspect import get_scale_vnf_data_info_list
21 from lcm.ns.const import NS_INST_STATUS
22 from lcm.pub.database.models import JobModel, NSInstModel
23 from lcm.pub.exceptions import NSLCMException
24 from lcm.pub.utils.jobutil import JobUtil, JOB_MODEL_STATUS
25 from lcm.pub.utils.values import ignore_case_get
26 from lcm.ns_vnfs.biz.scale_vnfs import NFManualScaleService
29 SCALE_TYPE = ("SCALE_NS", "SCALE_VNF")
30 logger = logging.getLogger(__name__)
33 class NSManualScaleService(threading.Thread):
34 def __init__(self, ns_instance_id, request_data, job_id):
35 super(NSManualScaleService, self).__init__()
36 self.ns_instance_id = ns_instance_id
37 self.request_data = request_data
39 self.scale_vnf_data = ''
44 except NSLCMException as e:
45 JobUtil.add_job_status(self.job_id, JOB_ERROR, e.message)
46 except Exception as ex:
47 logger.error(ex.message)
48 logger.error(traceback.format_exc())
49 JobUtil.add_job_status(self.job_id, JOB_ERROR, 'ns scale fail')
51 self.update_ns_status(NS_INST_STATUS.ACTIVE)
54 self.update_job(1, desc='ns scale start')
55 self.update_ns_status(NS_INST_STATUS.SCALING)
56 self.check_and_set_params()
58 self.update_job(100, desc='ns scale success')
60 def check_and_set_params(self):
61 scale_type = ignore_case_get(self.request_data, 'scaleType')
62 if scale_type != SCALE_TYPE[0]:
63 raise NSLCMException('scaleType should be SCALE_NS.')
65 scale_ns_data = ignore_case_get(self.request_data, 'scaleNsData')
66 self.scale_vnf_data = get_scale_vnf_data_info_list(
67 scale_ns_data, self.ns_instance_id)
68 logger.debug('scale_vnf_data = %s' % self.scale_vnf_data)
69 if not self.scale_vnf_data:
70 raise NSLCMException('Failed to get scaleVnfData parameter')
72 def do_vnfs_scale(self):
73 for i in range(len(self.scale_vnf_data)):
74 vnf_scale_params = self.prepare_vnf_scale_params(
75 self.scale_vnf_data[i])
76 count = len(self.scale_vnf_data)
77 progress_range = [11 + 80 / count * i, 10 + 80 / count * (i + 1)]
78 status = self.do_vnf_scale(vnf_scale_params, progress_range)
79 if status is JOB_MODEL_STATUS.FINISHED:
81 'nf[%s] scale handle end' %
82 vnf_scale_params.get('vnfInstanceId'))
85 desc='nf[%s] scale handle end' %
86 vnf_scale_params.get('vnfInstanceId'))
88 raise NSLCMException('VNF scale failed')
90 def prepare_vnf_scale_params(self, vnf_data):
92 "vnfInstanceId": ignore_case_get(vnf_data, 'vnfInstanceId'),
93 "scaleVnfData": ignore_case_get(vnf_data, 'scaleByStepData'),
94 "nsInstanceId": self.ns_instance_id
97 def do_vnf_scale(self, vnf_scale_params, progress_range):
98 nf_inst_id = vnf_scale_params.get('vnfInstanceId')
99 nf_service = NFManualScaleService(nf_inst_id, vnf_scale_params)
103 desc='nf[%s] scale handle start' %
105 status = self.wait_job_finish(nf_service.job_id)
109 def wait_job_finish(sub_job_id, timeout=3600):
111 start_time = end_time = datetime.datetime.now()
112 while (end_time - start_time).seconds < timeout:
113 job_result = JobModel.objects.get(jobid=sub_job_id)
114 time.sleep(query_interval)
115 end_time = datetime.datetime.now()
116 if job_result.progress == 100:
117 return JOB_MODEL_STATUS.FINISHED
118 if job_result.progress > 100:
119 return JOB_MODEL_STATUS.ERROR
120 return JOB_MODEL_STATUS.TIMEOUT
122 def update_job(self, progress, desc=''):
123 JobUtil.add_job_status(self.job_id, progress, desc)
125 def update_ns_status(self, status):
126 NSInstModel.objects.filter(
127 id=self.ns_instance_id).update(