lcm/ns/biz/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 traceback
  16 import uuid
  17
  18 from lcm.pub.config.config import REPORT_TO_AAI
  19 from lcm.pub.database.models import NSInstModel
  20 from lcm.pub.exceptions import NSLCMException
  21 from lcm.pub.msapi.aai import create_ns_aai
  22 from lcm.pub.msapi.sdc_run_catalog import query_nspackage_by_id
  23 from lcm.pub.utils.timeutil import now_time
  24 from lcm.pub.utils.values import ignore_case_get
  25 from lcm.ns.const import SERVICE_ROLE, SERVICE_TYPE
  26
  27 logger = logging.getLogger(__name__)
  28
  29
  30 class CreateNSService(object):
  31     """
  32     This class for NS instance Model create
  33     """
  34
  35     def __init__(self, csar_id, ns_name, description, context):
  36         self.csar_id = csar_id
  37         self.ns_name = ns_name
  38         self.description = description
  39         self.global_customer_id = ignore_case_get(context, 'globalCustomerId')
  40         self.service_type = ignore_case_get(context, 'serviceType')
  41         self.ns_inst_id = ''
  42         self.ns_package_id = ''
  43
  44     def do_biz(self):
  45         """
  46         Create NS instance model
  47         :return:
  48         """
  49         self.check_nsd_valid()
  50         self.check_ns_inst_name_exist()
  51         self.create_ns_inst()
  52         if REPORT_TO_AAI:
  53             self.create_ns_in_aai()
  54         logger.debug("CreateNSService::do_biz::ns_inst_id=%s" % self.ns_inst_id)
  55         return self.ns_inst_id
  56
  57     def check_nsd_valid(self):
  58         """
  59         Check the validation of NSD
  60         :return:
  61         """
  62         logger.debug("CreateNSService::check_nsd_valid::csar_id=%s" % self.csar_id)
  63         ns_package_info = query_nspackage_by_id(self.csar_id)
  64         if not ns_package_info:
  65             raise NSLCMException("nsd(%s) not exists." % self.csar_id)
  66         packageInfo = ns_package_info["packageInfo"]
  67         self.ns_package_id = ignore_case_get(packageInfo, "nsPackageId")
  68         self.nsd_id = ignore_case_get(packageInfo, "nsdId")
  69         self.nsd_invariant_id = ignore_case_get(packageInfo, "nsdInvariantId")
  70         logger.debug("CreateNSService::check_nsd_valid::ns_package_id=%s,nsd_id=%s", self.ns_package_id, self.nsd_id)
  71
  72     def check_ns_inst_name_exist(self):
  73         """
  74         Check if the ns instance with same name exists
  75         :return:
  76         """
  77         is_exist = NSInstModel.objects.filter(name=self.ns_name).exclude(status='null').exists()
  78         logger.debug("CreateNSService::check_ns_inst_name_exist::is_exist=%s" % is_exist)
  79         if is_exist:
  80             raise NSLCMException("ns(%s) already existed." % self.ns_name)
  81
  82     def create_ns_inst(self):
  83         """
  84         Create NS instance Model
  85         :return:
  86         """
  87         self.ns_inst_id = str(uuid.uuid4())
  88         logger.debug("CreateNSService::create_ns_inst::ns_inst_id=%s" % self.ns_inst_id)
  89         NSInstModel(id=self.ns_inst_id,
  90                     name=self.ns_name,
  91                     nspackage_id=self.ns_package_id,
  92                     nsd_id=self.nsd_id,
  93                     nsd_invariant_id=self.nsd_invariant_id,
  94                     description=self.description,
  95                     status='NOT_INSTANTIATED',  # 'empty',
  96                     lastuptime=now_time(),
  97                     global_customer_id=self.global_customer_id,
  98                     service_type=self.service_type).save()
  99
 100     def create_ns_in_aai(self):
 101         """
 102         Create NS instance record in AAI
 103         :return:
 104         """
 105         logger.debug("CreateNSService::create_ns_in_aai::report ns instance[%s] to aai." % self.ns_inst_id)
 106         try:
 107             data = {
 108                 "service-instance-id": self.ns_inst_id,
 109                 "service-instance-name": self.ns_name,
 110                 "service-type": SERVICE_TYPE,
 111                 "service-role": SERVICE_ROLE
 112             }
 113             resp_data, resp_status = create_ns_aai(self.global_customer_id, self.service_type, self.ns_inst_id, data)
 114             logger.debug("Success to create ns[%s] to aai:[%s],[%s].", self.ns_inst_id, resp_data, resp_status)
 115         except NSLCMException as e:
 116             logger.debug("Fail to createns[%s] to aai, detail message: %s" % (self.ns_inst_id, e.args[0]))
 117         except:
 118             logger.error(traceback.format_exc())