lcm/ns/ns_create.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 logging
  15 import uuid
  16
  17 from lcm.pub.database.models import NSDModel, NSInstModel
  18 from lcm.pub.exceptions import NSLCMException
  19 from lcm.pub.msapi.aai import create_customer_aai
  20 from lcm.pub.utils.timeutil import now_time
  21
  22 logger = logging.getLogger(__name__)
  23
  24
  25 class CreateNSService(object):
  26     def __init__(self, nsd_id, ns_name, description):
  27         self.nsd_id = nsd_id
  28         self.ns_name = ns_name
  29         self.description = description
  30         self.ns_inst_id = ''
  31         self.ns_package_id = ''
  32
  33     def do_biz(self):
  34         self.check_nsd_valid()
  35         self.check_ns_inst_name_exist()
  36         self.create_ns_inst()
  37         self.create_ns_in_aai()
  38         logger.debug("CreateNSService::do_biz::ns_inst_id=%s" % self.ns_inst_id)
  39         return self.ns_inst_id
  40
  41     def check_nsd_valid(self):
  42         logger.debug("CreateNSService::check_nsd_valid::nsd_id=%s" % self.nsd_id)
  43         ns_package_info = NSDModel.objects.filter(nsd_id=self.nsd_id)
  44         if not ns_package_info:
  45             raise NSLCMException("nsd(%s) not exists." % self.nsd_id)
  46         self.ns_package_id = ns_package_info[0].id
  47         logger.debug("CreateNSService::check_nsd_valid::ns_package_id=%s" % self.ns_package_id)
  48
  49     def check_ns_inst_name_exist(self):
  50         is_exist = NSInstModel.objects.filter(name=self.ns_name).exists()
  51         logger.debug("CreateNSService::check_ns_inst_name_exist::is_exist=%s" % is_exist)
  52         if is_exist:
  53             raise NSLCMException("ns(%s) already existed." % self.ns_name)
  54
  55     def create_ns_inst(self):
  56         self.ns_inst_id = str(uuid.uuid4())
  57         logger.debug("CreateNSService::create_ns_inst::ns_inst_id=%s" % self.ns_inst_id)
  58         NSInstModel(id=self.ns_inst_id, name=self.ns_name, nspackage_id=self.ns_package_id,
  59                     nsd_id=self.nsd_id, description=self.description, status='empty',
  60                     lastuptime=now_time()).save()
  61
  62     def create_ns_in_aai(self):
  63         logger.debug("CreateNSService::create_ns_in_aai::report ns instance[%s] to aai." % self.ns_inst_id)
  64         global_customer_id = "global-customer-id-" + self.ns_inst_id
  65         data = {
  66             "global-customer-id": "global-customer-id-" + self.ns_inst_id,
  67             "subscriber-name": "subscriber-name-" + self.ns_inst_id,
  68             "subscriber-type": "subscriber-type-" + self.ns_inst_id,
  69             "service-subscriptions": {
  70                 "service-subscription": [
  71                     {
  72                         "service-type": "service-type-" + self.ns_inst_id,
  73                         "service-instances": {
  74                             "service-instance": [
  75                                 {
  76                                     "service-instance-id": self.ns_inst_id,
  77                                     "service-instance-name": self.ns_name,
  78                                     "service-type": "service-type-" + self.ns_inst_id,
  79                                     "service-role": "service-role-" + self.ns_inst_id
  80                                 }
  81                             ]
  82                         }
  83                     }
  84                 ]
  85             }
  86         }
  87         resp_data, resp_status = create_customer_aai(global_customer_id, data)
  88         if resp_data:
  89             logger.debug("Fail to create ns instance[%s] to aai, resp_status: [%s]." % (self.ns_inst_id, resp_status) )
  90         else:
  91             logger.debug("Success to create ns instance[%s] to aai, resp_status: [%s]." % (self.ns_inst_id, resp_status) )