Coverage for python/lsst/obs/lsst/ts8.py: 70%

29 statements  

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1# This file is part of obs_lsst. 

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

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

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

12# (at your option) any later version. 

13# 

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

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

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

17# GNU General Public License for more details. 

18# 

19# You should have received a copy of the LSST License Statement and 

20# the GNU General Public License along with this program. If not, 

21# see <http://www.lsstcorp.org/LegalNotices/>. 

22# 

23from . import LsstCamMapper, LsstCamMakeRawVisitInfo 

24from .ingest import LsstCamParseTask 

25from .translators import LsstTS8Translator 

26from ._instrument import LsstTS8 

27 

28__all__ = ["Ts8Mapper", "Ts8ParseTask"] 

29 

30 

31class Ts8MakeRawVisitInfo(LsstCamMakeRawVisitInfo): 

32 """Make a VisitInfo from the FITS header of a raw image.""" 

33 metadataTranslator = LsstTS8Translator 

34 

35 

36class Ts8Mapper(LsstCamMapper): 

37 """The Mapper for the ts8 camera.""" 

38 translatorClass = LsstTS8Translator 

39 MakeRawVisitInfoClass = Ts8MakeRawVisitInfo 

40 _gen3instrument = LsstTS8 

41 _cameraName = "ts8" 

42 yamlFileList = ["ts8/ts8Mapper.yaml"] + list(LsstCamMapper.yamlFileList) 

43 filterDefinitions = LsstTS8.filterDefinitions 

44 

45 def _computeCcdExposureId(self, dataId): 

46 """Compute the 64-bit (long) identifier for a CCD exposure. 

47 

48 Parameters 

49 ---------- 

50 dataId : `dict` 

51 Data identifier including ``dayObs`` and ``seqNum``. 

52 """ 

53 if len(dataId) == 0: 

54 return 0 # give up. Useful if reading files without a butler 

55 

56 return super()._computeCcdExposureId(dataId) 

57 

58 def bypass_ccdExposureId_bits(self, datasetType, pythonType, location, dataId): 

59 """How many bits are required for the maximum exposure ID""" 

60 return 58 # max detector_exposure_id ~ 203012122359599500 

61 

62 

63class Ts8ParseTask(LsstCamParseTask): 

64 """Parser suitable for ts8 data. 

65 """ 

66 

67 _mapperClass = Ts8Mapper 

68 _translatorClass = LsstTS8Translator 

69 

70 def translate_testSeqNum(self, md): 

71 """Translate the sequence number. 

72 

73 Sometimes this is present, sometimes it is not. When it is, return it 

74 as an int. When it's not, provide a default value of 0 as an int. 

75 This function exists because currently the Gen2 butler's default 

76 value providing pathway has trouble with types. 

77 

78 Parameters 

79 ---------- 

80 md : `lsst.daf.base.PropertyList` or `~lsst.daf.base.PropertySet` 

81 Image metadata. 

82 

83 Returns 

84 ------- 

85 seqNum : `int` 

86 The seqNum, with a default value of ``0`` if required. 

87 """ 

88 try: 

89 seqNum = md.getScalar("SEQNUM") 

90 except KeyError: 

91 seqNum = 0 

92 return seqNum