Added possibility to activate TRT drift circle uncertainty mu-corrections by toggling a flag

• Adjust configuration to optionally use offline or online luminosity conditions data for mu dependent TRT error scaling
• Added flag to toggle the usage of this conditions data.

InnerDetector/InDetExample/InDetRecExample/python/TrackingCommon.py

@@ -426,17 +426,28 @@ def getInDetBroadTRT_DriftCircleOnTrackTool(name='InDetBroadTRT_DriftCircleOnTra
 def getInDetTRT_DriftCircleOnTrackNoDriftTimeTool(**kwargs) :
     return getInDetBroadTRT_DriftCircleOnTrackTool(**kwargs)
 
+
+def getLumiCondDataKeyForTRTMuScaling() :
+    from AthenaCommon.AthenaCommonFlags import athenaCommonFlags
+    from InDetRecExample.InDetJobProperties import InDetFlags
+
+    if not InDetFlags.doCosmics() :
+        from LumiBlockComps.LuminosityCondAlgDefault import LuminosityCondAlgDefault,LuminosityCondAlgOnlineDefault
+        from RecExConfig.RecAlgsFlags import recAlgs
+        lumiAlg = LuminosityCondAlgDefault() if not recAlgs.doTrigger else LuminosityCondAlgOnlineDefault()
+        if lumiAlg is not None :
+            return lumiAlg.LuminosityOutputKey
+    return ''
+
 # @TODO rename to InDetTRT_DriftCircleOnTrackTool ?
 @makePublicTool
 def getInDetTRT_DriftCircleOnTrackTool(name='TRT_DriftCircleOnTrackTool', **kwargs) :
     the_name = makeName( name, kwargs)
     createAndAddCondAlg(getRIO_OnTrackErrorScalingCondAlg,'RIO_OnTrackErrorScalingCondAlg')
-    # @TODO create LuminosityCondAlg
     from TRT_DriftCircleOnTrackTool.TRT_DriftCircleOnTrackToolConf import InDet__TRT_DriftCircleOnTrackTool
     kwargs = setDefaults(kwargs,
                          TRTErrorScalingKey = '/Indet/TrkErrorScalingTRT',
-                         # LumiDataKey        = 'LuminosityCondData'        # @TODO undo out-commenting to re-enable mu-correction for TRT error scaling
-                         )
+                         LumiDataKey        = getLumiCondDataKeyForTRTMuScaling())
     return InDet__TRT_DriftCircleOnTrackTool(name = the_name, **kwargs)