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# Copyright 2017 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
from lcm.pub.config.config import REPORT_TO_AAI
from lcm.pub.database.models import NfInstModel, NfvoRegInfoModel
from lcm.pub.exceptions import NFLCMException
from lcm.pub.msapi.aai import query_vnf_aai, delete_vnf_aai
logger = logging.getLogger(__name__)
class DeleteVnf:
def __init__(self, data, instanceid):
self.data = data
self.nf_inst_id = instanceid
def do_biz(self):
try:
self.check_parameter()
if REPORT_TO_AAI:
self.delete_vnf_in_aai()
self.delete_info_from_db()
except NFLCMException as e:
logger.debug('Delete VNF instance[%s] from AAI failed' % self.nf_inst_id)
except:
logger.debug('Delete VNF instance[%s] failed' % self.nf_inst_id)
def check_parameter(self):
vnf_insts = NfInstModel.objects.filter(nfinstid=self.nf_inst_id)
if not vnf_insts.exists():
logger.warn('VnfInst(%s) does not exist' % self.nf_inst_id)
return
# sel_vnf = vnf_insts[0]
# if sel_vnf.status != 'NOT_INSTANTIATED':
# raise NFLCMException("Don't allow to delete vnf(status:[%s])" % sel_vnf.status)
def delete_info_from_db(self):
NfInstModel.objects.filter(nfinstid=self.nf_inst_id).delete()
NfvoRegInfoModel.objects.filter(nfvoid=self.nf_inst_id).delete()
def delete_vnf_in_aai(self):
logger.debug("DeleteVnf::delete_vnf_in_aai::delete vnf instance[%s] in aai." % self.nf_inst_id)
# query vnf instance in aai, get resource_version
customer_info = query_vnf_aai(self.nf_inst_id)
resource_version = customer_info["resource-version"]
# delete vnf instance from aai
resp_data, resp_status = delete_vnf_aai(self.nf_inst_id, resource_version)
if resp_data:
logger.debug("Fail to delete vnf instance[%s] from aai, resp_status: [%s]." % (self.nf_inst_id, resp_status))
else:
logger.debug(
"Success to delete vnf instance[%s] from aai, resp_status: [%s]." % (self.nf_inst_id, resp_status))
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