Add method to gen2 mapper to return gen3 instrument

python/lsst/obs/lsst/comCam.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstComCamTranslator
+from ._instrument import LsstComCam
 
 __all__ = ["LsstComCamMapper", "LsstComCamParseTask"]
 
@@ -36,6 +37,7 @@ class LsstComCamMapper(LsstCamMapper):
     """The Mapper for the LSST ComCam camera."""
     translatorClass = LsstComCamTranslator
     MakeRawVisitInfoClass = LsstComCamMakeRawVisitInfo
+    _gen3instrument = LsstComCam
     _cameraName = "comCam"
 
 

python/lsst/obs/lsst/imsim.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstImSimTranslator
+from ._instrument import LsstImSim
 
 __all__ = ["ImsimMapper", "ImsimParseTask"]
 
@@ -36,6 +37,7 @@ class ImsimMapper(LsstCamMapper):
     """The Mapper for the imsim simulations of the LsstCam."""
     translatorClass = LsstImSimTranslator
     MakeRawVisitInfoClass = ImsimMakeRawVisitInfo
+    _gen3instrument = LsstImSim
 
     _cameraName = "imsim"
     yamlFileList = ["imsim/imsimMapper.yaml"] + list(LsstCamMapper.yamlFileList)

python/lsst/obs/lsst/latiss.py

@@ -27,6 +27,7 @@
 from .ingest import LsstCamParseTask
 from .translators import LatissTranslator
 from .filters import LATISS_FILTER_DEFINITIONS
+from ._instrument import Latiss
 
 __all__ = ["LatissMapper", "LatissParseTask"]
 
@@ -40,6 +41,7 @@ class LatissMapper(LsstCamMapper):
     """The Mapper for the LATISS camera."""
 
     MakeRawVisitInfoClass = LatissMakeRawVisitInfo
+    _gen3instrument = Latiss
 
     _cameraName = "latiss"
     yamlFileList = ["latiss/latissMapper.yaml"] + list(LsstCamMapper.yamlFileList)

python/lsst/obs/lsst/lsstCamMapper.py

@@ -32,6 +32,7 @@
 import lsst.daf.persistence as dafPersist
 from .translators import LsstCamTranslator
 from ._fitsHeader import readRawFitsHeader
+from ._instrument import LsstCam
 
 from .filters import LSSTCAM_FILTER_DEFINITIONS
 from .assembly import attachRawWcsFromBoresight, fixAmpsAndAssemble
@@ -408,9 +409,23 @@ def std_raw(self, item, dataId, filter=True):
                                          setVisitInfo=False,  # it's already set, and the metadata's stripped
                                          filter=filter)
 
+    @classmethod
+    def getGen3Instrument(cls):
+        """Return the gen3 Instrument class equivalent for this gen2 Mapper.
+
+        Returns
+        -------
+        instr : `type`
+            A `~lsst.obs.base.Instrument` class.
+        """
+        if cls._gen3instrument is None:
+            raise RuntimeError(f"Mapper {cls} forgot to set gen3 instrument internally")
+        return cls._gen3instrument
+
 
 class LsstCamMapper(LsstCamBaseMapper):
     """The mapper for lsstCam."""
     translatorClass = LsstCamTranslator
     MakeRawVisitInfoClass = LsstCamRawVisitInfo
     _cameraName = "lsstCam"
+    _gen3instrument = LsstCam

python/lsst/obs/lsst/phosim.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstPhoSimTranslator
+from ._instrument import LsstPhoSim
 
 __all__ = ["PhosimMapper", "PhosimParseTask", "PhosimEimgParseTask"]
 
@@ -36,6 +37,7 @@ class PhosimMapper(LsstCamMapper):
     """The Mapper for the phosim simulations of the LsstCam."""
     translatorClass = LsstPhoSimTranslator
     MakeRawVisitInfoClass = PhosimRawVisitInfo
+    _gen3instrument = LsstPhoSim
 
     _cameraName = "phosim"
     yamlFileList = ["imsim/imsimMapper.yaml"] + list(LsstCamMapper.yamlFileList)

python/lsst/obs/lsst/ts3.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstTS3Translator
+from ._instrument import LsstTS3
 
 __all__ = ["Ts3Mapper", "Ts3ParseTask"]
 
@@ -36,6 +37,7 @@ class Ts3Mapper(LsstCamMapper):
     """The Mapper for the ts3 camera."""
     translatorClass = LsstTS3Translator
     MakeRawVisitInfoClass = Ts3MakeRawVisitInfo
+    _gen3instrument = LsstTS3
     _cameraName = "ts3"
     yamlFileList = ["ts3/ts3Mapper.yaml"] + list(LsstCamMapper.yamlFileList)
 

python/lsst/obs/lsst/ts8.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstTS8Translator
+from ._instrument import LsstTS8
 
 __all__ = ["Ts8Mapper", "Ts8ParseTask"]
 
@@ -36,6 +37,7 @@ class Ts8Mapper(LsstCamMapper):
     """The Mapper for the ts8 camera."""
     translatorClass = LsstTS8Translator
     MakeRawVisitInfoClass = Ts8MakeRawVisitInfo
+    _gen3instrument = LsstTS8
     _cameraName = "ts8"
     yamlFileList = ["ts8/ts8Mapper.yaml"] + list(LsstCamMapper.yamlFileList)
 

python/lsst/obs/lsst/ucd.py

@@ -23,6 +23,7 @@
 from . import LsstCamMapper, LsstCamMakeRawVisitInfo
 from .ingest import LsstCamParseTask
 from .translators import LsstUCDCamTranslator
+from ._instrument import LsstUCDCam
 
 __all__ = ["UcdMapper", "UcdParseTask"]
 
@@ -36,6 +37,7 @@ class UcdMapper(LsstCamMapper):
     """The Mapper for the UCDavis camera."""
     translatorClass = LsstUCDCamTranslator
     MakeRawVisitInfoClass = UcdMakeRawVisitInfo
+    _gen3instrument = LsstUCDCam
 
     _cameraName = "ucd"
     yamlFileList = ["ucd/ucdMapper.yaml"] + list(LsstCamMapper.yamlFileList)