DM-27170: Deprecate and phase out afw::image::Filter

python/lsst/ip/isr/assembleCcdTask.py

@@ -227,7 +227,7 @@ def postprocessExposure(self, outExposure, inExposure):
         outExposure.setMetadata(exposureMetadata)
 
         # note: don't copy PhotoCalib, because it is assumed to be unknown in raw data
-        outExposure.setFilter(inExposure.getFilter())
+        outExposure.setFilterLabel(inExposure.getFilterLabel())
         outExposure.getInfo().setVisitInfo(inExposure.getInfo().getVisitInfo())
 
         frame = getDebugFrame(self._display, "assembledExposure")

python/lsst/ip/isr/calibType.py

@@ -188,6 +188,8 @@ def updateMetadata(self, camera=None, detector=None, filterName=None,
                 (self._raftName, self._slotName) = self._detectorName.split("_")
 
         if filterName:
+            # TOD0 DM-28093: I think this whole comment can go away, if we
+            # always use physicalLabel everywhere in ip_isr.
             # If set via:
             # exposure.getInfo().getFilter().getName()
             # then this will hold the abstract filter.

python/lsst/ip/isr/fringe.py

@@ -53,8 +53,12 @@ class FringeStatisticsConfig(Config):
 
 class FringeConfig(Config):
     """Fringe subtraction options"""
+    # TODO DM-28093: change the doc to specify that these are physical labels
     filters = ListField(dtype=str, default=[], doc="Only fringe-subtract these filters")
-    useFilterAliases = Field(dtype=bool, default=False, doc="Search filter aliases during check.")
+    # TODO: remove in DM-27177
+    useFilterAliases = Field(dtype=bool, default=False, doc="Search filter aliases during check.",
+                             deprecated=("Removed with no replacement (FilterLabel has no aliases)."
+                                         "Will be removed after v22."))
     num = Field(dtype=int, default=30000, doc="Number of fringe measurements")
     small = Field(dtype=int, default=3, doc="Half-size of small (fringe) measurements (pixels)")
     large = Field(dtype=int, default=30, doc="Half-size of large (background) measurements (pixels)")
@@ -250,6 +254,7 @@ def checkFilter(self, exposure):
             configuration, and should have the fringe applied.
         """
         filterObj = afwImage.Filter(exposure.getFilter().getId())
+        # TODO: remove this check along with the config option in DM-27177
         if self.config.useFilterAliases:
             filterNameSet = set(filterObj.getAliases() + [filterObj.getName()])
         else:

python/lsst/ip/isr/isrTask.py

@@ -1059,6 +1059,7 @@ def readIsrData(self, dataRef, rawExposure):
             dateObs = None
 
         ccd = rawExposure.getDetector()
+        # TODO DM-28093: change this to: rawExposure.getFilterLabel().physicalLabel
         filterName = afwImage.Filter(rawExposure.getFilter().getId()).getName()  # Canonical name for filter
         rawExposure.mask.addMaskPlane("UNMASKEDNAN")  # needed to match pre DM-15862 processing.
         biasExposure = (self.getIsrExposure(dataRef, self.config.biasDataProductName)
@@ -1314,6 +1315,7 @@ def run(self, ccdExposure, camera=None, bias=None, linearizer=None,
                 return self.runDataRef(ccdExposure)
 
         ccd = ccdExposure.getDetector()
+        # TODO DM-28093: change this to: ccdExposure.getFilterLabel().physicalLabel
         filterName = afwImage.Filter(ccdExposure.getFilter().getId()).getName()  # Canonical name for filter
 
         if not ccd:
@@ -2460,6 +2462,7 @@ def roughZeroPoint(self, exposure):
         exposure : `lsst.afw.image.Exposure`
             Exposure to process.
         """
+        # TODO DM-28093: change this to: exposure.getFilterLabel().physicalLabel
         filterName = afwImage.Filter(exposure.getFilter().getId()).getName()  # Canonical name for filter
         if filterName in self.config.fluxMag0T1:
             fluxMag0 = self.config.fluxMag0T1[filterName]

python/lsst/ip/isr/straylight.py

@@ -32,6 +32,7 @@ class StrayLightConfig(Config):
         doc="",
         default=False,
     )
+    # TODO DM-28093: change the doc to specify that these are physical labels
     filters = ListField(
         dtype=str,
         doc="Filters that need straylight correction.",