ricsdl-package/ricsdl/configuration.py

   1 # Copyright (c) 2019 AT&T Intellectual Property.
   2 # Copyright (c) 2018-2019 Nokia.
   3 #
   4 # Licensed under the Apache License, Version 2.0 (the "License");
   5 # you may not use this file except in compliance with the License.
   6 # You may obtain a copy of the License at
   7 #
   8 #     http://www.apache.org/licenses/LICENSE-2.0
   9 #
  10 # Unless required by applicable law or agreed to in writing, software
  11 # distributed under the License is distributed on an "AS IS" BASIS,
  12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13 # See the License for the specific language governing permissions and
  14 # limitations under the License.
  15
  16 #
  17 # This source code is part of the near-RT RIC (RAN Intelligent Controller)
  18 # platform project (RICP).
  19 #
  20
  21
  22 """The module provides implementation of Shared Data Layer (SDL) configurability."""
  23 import os
  24 from collections import namedtuple
  25
  26
  27 class _Configuration():
  28     """This class implements Shared Data Layer (SDL) configurability."""
  29     Params = namedtuple('Params', ['db_host', 'db_port', 'db_sentinel_port',
  30                                    'db_sentinel_master_name'])
  31
  32     def __init__(self):
  33         self.params = self._read_configuration()
  34
  35     def __str__(self):
  36         return str(
  37             {
  38                 "DB host": self.params.db_host,
  39                 "DB port": self.params.db_port,
  40                 "DB master sentinel": self.params.db_sentinel_master_name,
  41                 "DB sentinel port": self.params.db_sentinel_port
  42             }
  43         )
  44
  45     def get_params(self):
  46         """Return SDL configuration."""
  47         return self.params
  48
  49     @classmethod
  50     def _read_configuration(cls):
  51         return _Configuration.Params(db_host=os.getenv('DBAAS_SERVICE_HOST'),
  52                                      db_port=os.getenv('DBAAS_SERVICE_PORT'),
  53                                      db_sentinel_port=os.getenv('DBAAS_SERVICE_SENTINEL_PORT'),
  54                                      db_sentinel_master_name=os.getenv('DBAAS_MASTER_NAME'))