Coverage for python/lsst/ap/verify/config.py : 71%
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1#
2# This file is part of ap_verify.
3#
4# Developed for the LSST Data Management System.
5# This product includes software developed by the LSST Project
6# (http://www.lsst.org).
7# See the COPYRIGHT file at the top-level directory of this distribution
8# for details of code ownership.
9#
10# This program is free software: you can redistribute it and/or modify
11# it under the terms of the GNU General Public License as published by
12# the Free Software Foundation, either version 3 of the License, or
13# (at your option) any later version.
14#
15# This program is distributed in the hope that it will be useful,
16# but WITHOUT ANY WARRANTY; without even the implied warranty of
17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18# GNU General Public License for more details.
19#
20# You should have received a copy of the GNU General Public License
21# along with this program. If not, see <http://www.gnu.org/licenses/>.
22#
24from lsst.daf.persistence import Policy
27class Config:
28 """Confuration manager for ``ap_verify``.
30 This is a singleton `lsst.daf.persistence.Policy` that may be accessed
31 from other modules in ``ap_verify`` as needed using `Config.instance`.
32 Please do not construct objects of this class directly.
34 Objects of this type are immutable.
35 """
37 def __init__(self):
38 path = Policy.defaultPolicyFile('ap_verify', 'dataset_config.yaml', 'config')
39 self._allInfo = Policy(path)
40 self._validate()
42 def _validate(self):
43 """Test that the loaded configuration is correct.
45 Raises
46 ------
47 RuntimeError
48 Raised if validation failed
49 """
50 try:
51 datasetMap = self._allInfo['datasets']
52 if not isinstance(datasetMap, Policy): 52 ↛ 53line 52 didn't jump to line 53, because the condition on line 52 was never true
53 raise TypeError('`datasets` is not a dictionary')
54 except (KeyError, TypeError) as e:
55 raise RuntimeError('Invalid config file.') from e
57 def __getitem__(self, key):
58 return self._allInfo[key]
60 def __contains__(self, key):
61 return key in self._allInfo
64Config.instance = Config()
65"""The sole `Config` object used by the program.
66"""