Coverage for python / lsst / daf / butler / remote_butler / server / _factory.py: 0%

1# This file is part of daf_butler. 

2# 

3# Developed for the LSST Data Management System. 

4# This product includes software developed by the LSST Project 

5# (http://www.lsst.org). 

6# See the COPYRIGHT file at the top-level directory of this distribution 

7# for details of code ownership. 

8# 

9# This software is dual licensed under the GNU General Public License and also 

10# under a 3-clause BSD license. Recipients may choose which of these licenses 

11# to use; please see the files gpl-3.0.txt and/or bsd_license.txt, 

12# respectively. If you choose the GPL option then the following text applies 

13# (but note that there is still no warranty even if you opt for BSD instead): 

14# 

15# This program is free software: you can redistribute it and/or modify 

16# it under the terms of the GNU General Public License as published by 

17# the Free Software Foundation, either version 3 of the License, or 

18# (at your option) any later version. 

19# 

20# This program is distributed in the hope that it will be useful, 

21# but WITHOUT ANY WARRANTY; without even the implied warranty of 

22# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 

23# GNU General Public License for more details. 

24# 

25# You should have received a copy of the GNU General Public License 

26# along with this program. If not, see <http://www.gnu.org/licenses/>. 

27 

28from lsst.daf.butler import LabeledButlerFactory 

29from lsst.daf.butler.direct_butler import DirectButler 

30 

31__all__ = ("Factory",) 

32 

33 

34class Factory: 

35 """Class for instantiating per-request dependencies, following the pattern 

36 in `SQR-072 <https://sqr-072.lsst.io/>`_. 

37 

38 Parameters 

39 ---------- 

40 repository : `str` 

41 The label of the Butler repository requested by the user. 

42 butler_factory : `LabeledButlerFactory` 

43 Factory used to instantiate Butler instances. 

44 """ 

45 

46 def __init__(self, *, repository: str, butler_factory: LabeledButlerFactory): 

47 self._repository = repository 

48 self._butler_factory = butler_factory 

49 

50 def create_butler(self) -> DirectButler: 

51 butler = self._butler_factory.create_butler(label=self._repository, access_token=None) 

52 if not isinstance(butler, DirectButler): 

53 raise TypeError("Server can only use a DirectButler") 

54 return butler 

55 

56 @property 

57 def repository(self) -> str: 

58 return self._repository