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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 math
import traceback
import logging
import json
import threading
import time
from lcm.ns.vnfs.wait_job import wait_job_finish
from lcm.pub.database.models import NSInstModel, VLInstModel, FPInstModel, NfInstModel
from lcm.pub.database.models import DefPkgMappingModel, InputParamMappingModel, ServiceBaseInfoModel
from lcm.pub.utils.jobutil import JOB_MODEL_STATUS, JobUtil
from lcm.pub.exceptions import NSLCMException
from lcm.pub.msapi.nslcm import call_from_ns_cancel_resource
from lcm.pub.utils.values import ignore_case_get
JOB_ERROR = 255
# [delete vnf try times]
logger = logging.getLogger(__name__)
class TerminateNsService(threading.Thread):
def __init__(self, ns_inst_id, terminate_type, terminate_timeout, job_id):
threading.Thread.__init__(self)
self.ns_inst_id = ns_inst_id
self.terminate_type = terminate_type
self.terminate_timeout = terminate_timeout
self.job_id = job_id
self.vnfm_inst_id = ''
def run(self):
try:
self.do_biz()
except NSLCMException as e:
JobUtil.add_job_status(self.job_id, JOB_ERROR, e.message)
except:
logger.error(traceback.format_exc())
JobUtil.add_job_status(self.job_id, JOB_ERROR, "ns terminate fail.", '')
def do_biz(self):
if not self.check_data():
JobUtil.add_job_status(self.job_id, 100, "Need not terminate.", '')
return
self.cancel_sfc_list()
self.cancel_vnf_list()
time.sleep(4)
self.cancel_vl_list()
self.finaldata()
def check_data(self):
JobUtil.add_job_status(self.job_id, 0, "TERMINATING...", '')
ns_inst = NSInstModel.objects.filter(id=self.ns_inst_id)
if not ns_inst.exists():
logger.warn('ns instance [%s] does not exist.' % self.ns_inst_id)
return False
JobUtil.add_job_status(self.job_id, 10, "Ns cancel: check ns_inst_id success", '')
return True
# delete VLINST
def cancel_vl_list(self):
array_vlinst = VLInstModel.objects.filter(ownertype='2', ownerid=self.ns_inst_id)
if not array_vlinst:
logger.error("[cancel_vl_list] no vlinst attatch to ns_inst_id:%s" % self.ns_inst_id)
return
step_progress = 20 / len(array_vlinst)
cur_progress = 70
for vlinst in array_vlinst:
tmp_msg = vlinst.vlinstanceid
try:
ret = self.delete_vl(tmp_msg)
if ret[0] == 0:
cur_progress += step_progress
result = json.JSONDecoder().decode(ret[1]).get("result", "")
if str(result) == '0':
JobUtil.add_job_status(self.job_id, cur_progress, "Delete vlinst:[%s] success." % tmp_msg, '')
else:
JobUtil.add_job_status(self.job_id, cur_progress, "Delete vlinst:[%s] failed." % tmp_msg, '')
return 'false'
else:
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='FAILED')
return 'false'
except Exception as e:
logger.error("[cancel_vl_list] error[%s]!" % e.message)
logger.error(traceback.format_exc())
JobUtil.add_job_status(self.job_id, cur_progress, "Delete vlinst:[%s] Failed." % tmp_msg, '')
return 'false'
return 'true'
# delete SFC
def cancel_sfc_list(self):
array_sfcinst = FPInstModel.objects.filter(nsinstid=self.ns_inst_id)
if not array_sfcinst:
logger.error("[cancel_sfc_list] no sfcinst attatch to ns_inst_id:%s" % self.ns_inst_id)
return
step_progress = 20 / len(array_sfcinst)
cur_progress = 30
for sfcinst in array_sfcinst:
tmp_msg = sfcinst.sfcid
try:
ret = self.delete_sfc(tmp_msg)
if ret[0] == 0:
cur_progress += step_progress
result = json.JSONDecoder().decode(ret[1]).get("result", "")
if str(result) == '0':
JobUtil.add_job_status(self.job_id, cur_progress, "Delete sfcinst:[%s] success." % tmp_msg, '')
else:
JobUtil.add_job_status(self.job_id, cur_progress, "Delete sfcinst:[%s] failed." % tmp_msg, '')
return 'false'
else:
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='FAILED')
return 'false'
except Exception as e:
logger.error("[cancel_sfc_list] error[%s]!" % e.message)
logger.error(traceback.format_exc())
JobUtil.add_job_status(self.job_id, cur_progress, "Delete sfcinst:[%s] Failed." % tmp_msg, '')
return 'false'
return 'true'
# delete Vnf
def cancel_vnf_list(self):
array_vnfinst = NfInstModel.objects.filter(ns_inst_id=self.ns_inst_id)
if not array_vnfinst:
logger.error("[cancel_vnf_list] no vnfinst attatch to ns_inst_id:%s" % self.ns_inst_id)
return
step_progress = 20 / len(array_vnfinst)
cur_progress = 50
for vnfinst in array_vnfinst:
tmp_msg = vnfinst.nfinstid
try:
self.delete_vnf(tmp_msg)
cur_progress += step_progress
JobUtil.add_job_status(self.job_id, cur_progress, "Delete vnfinst:[%s] success." % tmp_msg, '')
except Exception as e:
logger.error("[cancel_vnf_list] error[%s]!" % e.message)
logger.error(traceback.format_exc())
JobUtil.add_job_status(self.job_id, cur_progress, "Delete vnfinst:[%s] Failed." % tmp_msg, '')
return 'false'
return 'true'
def delete_vnf(self, nf_instid):
ret = call_from_ns_cancel_resource('vnf', nf_instid)
self.delete_resource(ret)
def delete_sfc(self, sfc_instid):
ret = call_from_ns_cancel_resource('sfc', sfc_instid)
return ret
def delete_vl(self, vl_instid):
ret = call_from_ns_cancel_resource('vl', vl_instid)
return ret
def delete_resource(self, result):
logger.debug("terminate_type=%s, result=%s", self.terminate_type, result)
if result[0] == 0:
job_info = json.JSONDecoder().decode(result[1])
vnfm_job_id = ignore_case_get(job_info, "jobid")
self.add_progress(5, "SEND_TERMINATE_REQ_SUCCESS")
if self.terminate_type == 'forceful':
ret = wait_job_finish(self.vnfm_inst_id, self.job_id, vnfm_job_id,
progress_range=[10, 50],
timeout=self.terminate_timeout,
job_callback=TerminateNsService.wait_job_mode_callback, mode='1')
if ret != JOB_MODEL_STATUS.FINISHED:
logger.error('[NS terminate] VNFM terminate ns failed')
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='FAILED')
raise NSLCMException("DELETE_NS_RESOURCE_FAILED")
else:
logger.error('[NS terminate] VNFM terminate ns failed')
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='FAILED')
raise NSLCMException("DELETE_NS_RESOURCE_FAILED")
def exception(self):
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='FAILED')
raise NSLCMException("DELETE_NS_RESOURCE_FAILED")
def finaldata(self):
NSInstModel.objects.filter(id=self.ns_inst_id).update(status='null')
JobUtil.add_job_status(self.job_id, 100, "ns terminate ends.", '')
# @staticmethod
# def call_vnfm_to_cancel_resource(res_type, instid):
# ret = call_from_ns_cancel_resource(res_type, instid)
# return ret
def add_progress(self, progress, status_decs, error_code=""):
JobUtil.add_job_status(self.job_id, progress, status_decs, error_code)
@staticmethod
def wait_job_mode_callback(vnfo_job_id, vnfm_job_id, job_status, jobs, progress_range, **kwargs):
for job in jobs:
progress = TerminateNsService.calc_progress_over_100(job['progress'], progress_range)
if 255 == progress and '1' == kwargs['mode']:
break
JobUtil.add_job_status(vnfo_job_id, progress, job.get('statusdescription', ''), job.get('errorcode', ''))
latest_progress = TerminateNsService.calc_progress_over_100(job_status['progress'], progress_range)
if 255 == latest_progress and '1' == kwargs['mode']:
JobUtil.add_job_status(vnfo_job_id, progress_range[1], job_status.get('statusdescription', ''),
job_status.get('errorcode', ''))
else:
JobUtil.add_job_status(vnfo_job_id, latest_progress, job_status.get('statusdescription', ''),
job_status.get('errorcode', ''))
if job_status['status'] in ('error', 'finished'):
return True, job_status['status']
return False, 'processing'
@staticmethod
def wait_job_finish_common_call_back(vnfo_job_id, vnfm_job_id, job_status, jobs, progress_range, **kwargs):
error_254 = False
for job in jobs:
progress = TerminateNsService.calc_progress_over_100(job['progress'], progress_range)
if 254 == progress:
logger.debug("=========254==============")
progress = 255
error_254 = True
JobUtil.add_job_status(vnfo_job_id, progress, job.get('statusdescription', ""), job.get('errorcode', ""))
latest_progress = TerminateNsService.calc_progress_over_100(job_status['progress'], progress_range)
if 254 == latest_progress:
logger.debug("=========254==============")
latest_progress = 255
error_254 = True
JobUtil.add_job_status(vnfo_job_id, latest_progress, job_status.get('statusdescription', ""),
job_status.get('errorcode', ""))
# return error_254
if error_254:
logger.debug("return 254")
return True, 'error_254'
if job_status['status'] in ('error', 'finished'):
return True, job_status['status']
return False, 'processing'
@staticmethod
def calc_progress_over_100(vnfm_progress, target_range=None):
if target_range is None:
target_range = [0, 100]
progress = int(vnfm_progress)
if progress > 100:
return progress
floor_progress = int(math.floor(float(target_range[1] - target_range[0]) / 100 * progress))
target_range = floor_progress + target_range[0]
return target_range
class DeleteNsService(object):
def __init__(self, ns_inst_id):
self.ns_inst_id = ns_inst_id
def do_biz(self):
try:
self.delete_ns()
except:
logger.error(traceback.format_exc())
def delete_ns(self):
logger.debug("delele NSInstModel(%s)", self.ns_inst_id)
NSInstModel.objects.filter(id=self.ns_inst_id).delete()
logger.debug("delele InputParamMappingModel(%s)", self.ns_inst_id)
InputParamMappingModel.objects.filter(service_id=self.ns_inst_id).delete()
logger.debug("delele DefPkgMappingModel(%s)", self.ns_inst_id)
DefPkgMappingModel.objects.filter(service_id=self.ns_inst_id).delete()
logger.debug("delele ServiceBaseInfoModel(%s)", self.ns_inst_id)
ServiceBaseInfoModel.objects.filter(service_id=self.ns_inst_id).delete()
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