Coverage for python/lsst/obs/lsst/ts3.py : 61%

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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 LsstTS3Translator
27__all__ = ["Ts3Mapper", "Ts3ParseTask"]
30class Ts3MakeRawVisitInfo(LsstCamMakeRawVisitInfo):
31 """Make a VisitInfo from the FITS header of a raw image."""
32 metadataTranslator = LsstTS3Translator
35class Ts3Mapper(LsstCamMapper):
36 """The Mapper for the ts3 camera."""
37 translatorClass = LsstTS3Translator
38 MakeRawVisitInfoClass = Ts3MakeRawVisitInfo
39 _cameraName = "ts3"
40 yamlFileList = ["ts3/ts3Mapper.yaml"] + list(LsstCamMapper.yamlFileList)
42 def _computeCcdExposureId(self, dataId):
43 """Compute the 64-bit (long) identifier for a CCD exposure.
45 Parameters
46 ----------
47 dataId : `dict`
48 Data identifier including ``dayObs`` and ``seqNum``.
49 """
50 if len(dataId) == 0:
51 return 0 # give up. Useful if reading files without a butler
53 return super()._computeCcdExposureId(dataId)
55 def bypass_ccdExposureId_bits(self, datasetType, pythonType, location, dataId):
56 """How many bits are required for the maximum exposure ID"""
57 return 58 # max detector_exposure_id ~ 203012122359599500
60class Ts3ParseTask(LsstCamParseTask):
61 """Parser suitable for ts3 data.
62 """
64 _mapperClass = Ts3Mapper
65 _translatorClass = LsstTS3Translator
67 def translate_testSeqNum(self, md):
68 """Translate the sequence number.
70 Sometimes this is present, sometimes it is not. When it is, return it
71 as an int. When it's not, provide a default value of 0 as an int.
72 This function exists because currently the Gen2 butler's default
73 value providing pathway has trouble with types.
75 Parameters
76 ----------
77 md : `lsst.daf.base.PropertyList` or `~lsst.daf.base.PropertySet`
78 Image metadata.
80 Returns
81 -------
82 seqNum : `int`
83 The seqNum, with a default value of ``0`` if required.
84 """
85 try:
86 seqNum = md.getScalar("SEQNUM")
87 except KeyError:
88 seqNum = 0
89 return seqNum