Coverage for manila/db/base.py: 100%

1# Copyright 2010 United States Government as represented by the 

2# Administrator of the National Aeronautics and Space Administration. 

3# All Rights Reserved. 

4# 

5# Licensed under the Apache License, Version 2.0 (the "License"); you may 

6# not use this file except in compliance with the License. You may obtain 

7# a copy of the License at 

8# 

9# http://www.apache.org/licenses/LICENSE-2.0 

10# 

11# Unless required by applicable law or agreed to in writing, software 

12# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 

13# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 

14# License for the specific language governing permissions and limitations 

15# under the License. 

16 

17"""Base class for classes that need modular database access.""" 

18 

19from oslo_config import cfg 

20from oslo_utils import importutils 

21 

22db_driver_opt = cfg.StrOpt('db_driver', 

23 default='manila.db', 

24 help='Driver to use for database access.') 

25 

26CONF = cfg.CONF 

27CONF.register_opt(db_driver_opt) 

28 

29 

30class Base(object): 

31 """DB driver is injected in the init method.""" 

32 

33 def __init__(self, db_driver=None): 

34 super(Base, self).__init__() 

35 if not db_driver: 

36 db_driver = CONF.db_driver 

37 self.db = importutils.import_module(db_driver) # pylint: disable=C0103