lcm/ns/biz/ns_get.py

   1 # Copyright 2016 ZTE Corporation.
   2 #
   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
   6 #
   7 #         http://www.apache.org/licenses/LICENSE-2.0
   8 #
   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.
  14 import json
  15 import logging
  16
  17 from lcm.ns.const import OWNER_TYPE
  18 from lcm.pub.database.models import NSInstModel, NfInstModel, VLInstModel, CPInstModel, VNFFGInstModel
  19
  20 logger = logging.getLogger(__name__)
  21
  22
  23 class GetNSInfoService(object):
  24     def __init__(self, ns_filter=None):
  25         self.ns_filter = ns_filter
  26
  27     def get_ns_info(self):
  28         ns_insts = None
  29         if self.ns_filter and "ns_inst_id" in self.ns_filter:
  30             ns_inst_id = self.ns_filter["ns_inst_id"]
  31             ns_insts = NSInstModel.objects.filter(id=ns_inst_id)
  32         else:
  33             ns_insts = NSInstModel.objects.all()
  34
  35         return [self.get_single_ns_info(ns_inst) for ns_inst in ns_insts]
  36
  37     def get_single_ns_info(self, ns_inst):
  38         return {
  39             'nsInstanceId': ns_inst.id,
  40             'nsName': ns_inst.name,
  41             'description': ns_inst.description,
  42             'nsdId': ns_inst.nsd_id,
  43             'vnfInfoId': self.get_vnf_infos(ns_inst.id),
  44             'vlInfo': self.get_vl_infos(ns_inst.id),
  45             'vnffgInfo': self.get_vnffg_infos(ns_inst.id, ns_inst.nsd_model),
  46             'nsState': ns_inst.status}
  47
  48     @staticmethod
  49     def get_vnf_infos(ns_inst_id):
  50         vnfs = NfInstModel.objects.filter(ns_inst_id=ns_inst_id)
  51         return [{
  52             'vnfInstanceId': vnf.nfinstid,
  53             'vnfInstanceName': vnf.nf_name,
  54             'vnfProfileId': vnf.vnf_id} for vnf in vnfs]
  55
  56     def get_vl_infos(self, ns_inst_id):
  57         vls = VLInstModel.objects.filter(ownertype=OWNER_TYPE.NS, ownerid=ns_inst_id)
  58         return [{
  59             'vlInstanceId': vl.vlinstanceid,
  60             'vlInstanceName': vl.vlinstancename,
  61             'vldId': vl.vldid,
  62             'relatedCpInstanceId': self.get_cp_infos(vl.vlinstanceid)} for vl in vls]
  63
  64     @staticmethod
  65     def get_cp_infos(vl_inst_id):
  66         cps = CPInstModel.objects.filter(relatedvl__icontains=vl_inst_id)
  67         return [{
  68             'cpInstanceId': cp.cpinstanceid,
  69             'cpInstanceName': cp.cpname,
  70             'cpdId': cp.cpdid} for cp in cps]
  71
  72     def get_vnffg_infos(self, ns_inst_id, nsd_model):
  73         vnffgs = VNFFGInstModel.objects.filter(nsinstid=ns_inst_id)
  74         return [{
  75             'vnffgInstanceId': vnffg.vnffginstid,
  76             'vnfId': self.convert_string_to_list(vnffg.vnflist),
  77             'pnfId': self.get_pnf_infos(nsd_model),
  78             'virtualLinkId': self.convert_string_to_list(vnffg.vllist),
  79             'cpId': self.convert_string_to_list(vnffg.cplist),
  80             'nfp': self.convert_string_to_list(vnffg.fplist)} for vnffg in vnffgs]
  81
  82     @staticmethod
  83     def get_pnf_infos(nsd_model):
  84         context = json.loads(nsd_model)
  85         pnfs = context['pnfs']
  86         return [pnf['pnf_id'] for pnf in pnfs]
  87
  88     @staticmethod
  89     def convert_string_to_list(detail_id_string):
  90         if not detail_id_string:
  91             return None
  92         return detail_id_string.split(',')