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# Copyright 2019 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
import traceback
import json
from threading import Thread
from lcm.nf.biz.grant_vnf import grant_resource
from lcm.nf.const import GRANT_TYPE, CHANGE_TYPE
from lcm.nf.const import VNF_STATUS
from lcm.nf.const import OPERATION_TYPE, OPERATION_TASK
from lcm.nf.const import OPERATION_STATE_TYPE
from lcm.nf.const import SUB_OPERATION_TASK
from lcm.pub.utils.notificationsutil import NotificationsUtil, prepare_notification_data
from lcm.pub.utils.values import ignore_case_get
from lcm.pub.utils.timeutil import now_time
from lcm.pub.utils.jobutil import JobUtil
from lcm.pub.exceptions import NFLCMException
from lcm.pub.exceptions import NFLCMExceptionConflict
from lcm.pub.database.models import NfInstModel
from .operate_vnf_lcm_op_occ import VnfLcmOpOcc
logger = logging.getLogger(__name__)
class ChangeVnfFlavour(Thread):
def __init__(self, data, nf_inst_id, job_id):
super(ChangeVnfFlavour, self).__init__()
self.data = data
self.nf_inst_id = nf_inst_id
self.job_id = job_id
self.vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
self.lcm_op_occ = VnfLcmOpOcc(
vnf_inst_id=nf_inst_id,
lcm_op_id=job_id,
operation=OPERATION_TYPE.CHANGE_FLAVOUR,
task=OPERATION_TASK.CHANGE_FLAVOUR
)
def run(self):
try:
self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.STARTING)
JobUtil.add_job_status(
self.job_id,
10,
"Start to apply grant."
)
self.apply_grant()
self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.PROCESSING)
JobUtil.add_job_status(
self.job_id,
50,
"Start to change vnf flavour."
)
self.lcm_op_occ.upd(
sub_operation=SUB_OPERATION_TASK.GRANTED,
operation_state=OPERATION_STATE_TYPE.PROCESSING
)
self.do_operation()
self.vnf_insts.update(
status='INSTANTIATED',
lastuptime=now_time()
)
self.send_notification()
JobUtil.add_job_status(
self.job_id,
100,
"Change vnf flavour success."
)
self.lcm_op_occ.upd(
sub_operation=SUB_OPERATION_TASK.SUCCESS,
operation_state=OPERATION_STATE_TYPE.COMPLETED
)
except NFLCMException as e:
logger.error(e.message)
self.change_vnf_flavour_failed_handle(e.message)
except Exception as e:
logger.error(e.message)
logger.error(traceback.format_exc())
self.change_vnf_flavour_failed_handle(e.message)
def pre_deal(self):
logger.debug("Start pre deal for VNF change_vnf_flavour task")
vnf_is_in_processing, vnf_op = self.lcm_op_occ.is_in_processing()
if vnf_is_in_processing:
raise NFLCMExceptionConflict('VNF(%s) %s in processing.' % (
self.nf_inst_id, vnf_op
))
self.lcm_op_occ.add()
def apply_grant(self):
logger.debug("Start change flavour apply grant")
vdus = ignore_case_get(self.vnfd_info, "vdus")
grant_result = grant_resource(
data=self.data,
nf_inst_id=self.nf_inst_id,
job_id=self.job_id,
grant_type=GRANT_TYPE.CHANGE_FLAVOUR,
vdus=vdus
)
logger.debug("Change flavour Grant result: %s", grant_result)
def do_operation(self):
logger.info('Operation resource begin')
self.vnfd_info = json.loads(self.vnf_insts[0].vnfd_model)
# TODO: Add operation logic
def send_notification(self):
data = prepare_notification_data(
nfinstid=self.nf_inst_id,
jobid=self.job_id,
changetype=CHANGE_TYPE.MODIFIED,
operation=OPERATION_TYPE.CHANGE_FLAVOUR
)
logger.debug('Notify request data = %s' % data)
NotificationsUtil().send_notification(data)
def change_vnf_flavour_failed_handle(self, error_msg):
logger.error('Chnage vnf flavour failed, detail message: %s', error_msg)
self.vnf_insts.update(
status=VNF_STATUS.FAILED,
lastuptime=now_time()
)
self.lcm_op_occ.notify_lcm(OPERATION_STATE_TYPE.FAILED, error_msg)
JobUtil.add_job_status(self.job_id, 255, error_msg)
self.lcm_op_occ.upd(
sub_operation=SUB_OPERATION_TASK.ERROR,
operation_state=OPERATION_STATE_TYPE.FAILED,
error={
"status": 500,
"detail": error_msg
}
)
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