lcm/ns_vnfs/biz/subscribe.py

   1 # Copyright 2018 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
  15 import json
  16 import logging
  17
  18 from lcm.pub.exceptions import NSLCMException
  19 from lcm.pub.msapi.extsys import get_vnfm_by_id
  20 from lcm.pub.utils.restcall import req_by_msb
  21
  22 logger = logging.getLogger(__name__)
  23
  24
  25 class Subscription(object):
  26     def __init__(self, data):
  27         self.data = data
  28         self.vnf_instance_id = self.data['vnfInstanceId']
  29         self.vnfm_id = self.data['vnfmId']
  30         self.subscription_request_data = {}
  31         self.subscription_response_data = {}
  32         pass
  33
  34     def do_biz(self):
  35         logger.debug('Start subscribing...')
  36         self.prepare_subscription_request_data()
  37         self.subscribe_lccn_notification()
  38         self.save_subscription_response_data()
  39         logger.debug('Subscribing has completed.')
  40
  41     def prepare_lccn_subscription_request_data(self):
  42         vnfm_info = get_vnfm_by_id(self.vnfm_id)
  43         self.subscription_request_data = {
  44             "filter": {
  45                 "notificationTypes": ["VnfLcmOperationOccurrenceNotification"],
  46                 "operationTypes": [
  47                     "INSTANTIATE",
  48                     "SCALE",
  49                     "SCALE_TO_LEVEL",
  50                     "CHANGE_FLAVOUR",
  51                     "TERMINATE",
  52                     "HEAL",
  53                     "OPERATE",
  54                     "CHANGE_EXT_CONN",
  55                     "MODIFY_INFO"
  56                 ],
  57                 "operationStates": [
  58                     "STARTING",
  59                     "PROCESSING",
  60                     "COMPLETED",
  61                     "FAILED_TEMP",
  62                     "FAILED",
  63                     "ROLLING_BACK",
  64                     "ROLLED_BACK"
  65                 ],
  66                 "vnfInstanceSubscriptionFilter": {
  67                     "vnfdIds": [],
  68                     "vnfInstanceIds": [self.vnf_instance_id],
  69                     "vnfInstanceNames": [],
  70                     "vnfProductsFromProviders": {}
  71                 }
  72             },
  73             "callbackUri": "api/gvnfmdriver/v1/vnfs/lifecyclechangesnotification",  # TODO: need reconfirming
  74             "authentication": {
  75                 "authType": ["BASIC"],
  76                 "paramsBasic": {
  77                     "userName": vnfm_info['userName'],
  78                     "password": vnfm_info['password']
  79                 }
  80             }
  81         }
  82
  83     def subscribe_lccn_notification(self):
  84         ret = req_by_msb('api/gvnfmdrvier/v1/%s/subscriptions' % self.vnfm_id, self.subscription_request_data)
  85         if ret[0] != 0:
  86             logger.error("Status code is %s, detail is %s.", ret[2], ret[1])
  87             raise NSLCMException("Failed to subscribe from vnfm(%s)." % self.vnfm_id)
  88         self.subscription_response_data = json.JSONDecoder().decode(ret[1])
  89
  90     def save_subscription_response_data(self):
  91         pass