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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 json
import logging
from lcm.ns.const import OWNER_TYPE
from lcm.pub.database.models import NSInstModel, NfInstModel, VLInstModel, CPInstModel, VNFFGInstModel
logger = logging.getLogger(__name__)
class GetNSInfoService(object):
def __init__(self, ns_filter=None):
self.ns_filter = ns_filter
def get_ns_info(self):
ns_insts = None
if self.ns_filter and "ns_inst_id" in self.ns_filter:
ns_inst_id = self.ns_filter["ns_inst_id"]
ns_insts = NSInstModel.objects.filter(id=ns_inst_id)
else:
ns_insts = NSInstModel.objects.all()
return [self.get_single_ns_info(ns_inst) for ns_inst in ns_insts]
def get_single_ns_info(self, ns_inst):
return {
'nsInstanceId': ns_inst.id,
'nsName': ns_inst.name,
'description': ns_inst.description,
'nsdId': ns_inst.nsd_id,
'nsdInvariantId': ns_inst.nsd_invariant_id,
'vnfInfo': self.get_vnf_infos(ns_inst.id),
'vlInfo': self.get_vl_infos(ns_inst.id),
'vnffgInfo': self.get_vnffg_infos(ns_inst.id, ns_inst.nsd_model),
'nsState': ns_inst.status}
@staticmethod
def get_vnf_infos(ns_inst_id):
vnfs = NfInstModel.objects.filter(ns_inst_id=ns_inst_id)
return [{
'vnfInstanceId': vnf.nfinstid,
'vnfInstanceName': vnf.nf_name,
'vnfProfileId': vnf.vnf_id} for vnf in vnfs]
def get_vl_infos(self, ns_inst_id):
vls = VLInstModel.objects.filter(ownertype=OWNER_TYPE.NS, ownerid=ns_inst_id)
return [{
'vlInstanceId': vl.vlinstanceid,
'vlInstanceName': vl.vlinstancename,
'vldId': vl.vldid,
'relatedCpInstanceId': self.get_cp_infos(vl.vlinstanceid)} for vl in vls]
@staticmethod
def get_cp_infos(vl_inst_id):
cps = CPInstModel.objects.filter(relatedvl__icontains=vl_inst_id)
return [{
'cpInstanceId': cp.cpinstanceid,
'cpInstanceName': cp.cpname,
'cpdId': cp.cpdid} for cp in cps]
def get_vnffg_infos(self, ns_inst_id, nsd_model):
vnffgs = VNFFGInstModel.objects.filter(nsinstid=ns_inst_id)
return [{
'vnffgInstanceId': vnffg.vnffginstid,
'vnfId': self.convert_string_to_list(vnffg.vnflist),
'pnfId': self.get_pnf_infos(nsd_model),
'virtualLinkId': self.convert_string_to_list(vnffg.vllist),
'cpId': self.convert_string_to_list(vnffg.cplist),
'nfp': self.convert_string_to_list(vnffg.fplist)} for vnffg in vnffgs]
@staticmethod
def get_pnf_infos(nsd_model):
context = json.loads(nsd_model)
pnfs = context['pnfs']
return [pnf['pnf_id'] for pnf in pnfs]
@staticmethod
def convert_string_to_list(detail_id_string):
if not detail_id_string:
return None
return detail_id_string.split(',')
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