add python config class for ecal detector map

python/EcalDetectorMap.py

@@ -0,0 +1,45 @@
+"""Conditions object providers for a mapping between ecal electronics IDs and detector IDs"""
+
+from LDMX.Framework import ldmxcfg
+
+class EcalDetectorMap(ldmxcfg.ConditionsObjectProvider) :
+    """The COP that maps between Electronic and Detector IDs.
+
+    The mapping is defined in three 'tiers'. 
+
+    1. cell - Each cell of a module has specific ROC elink and channel
+    2. motherboard - Each module has a specific ROC elink and polarfire
+    3. layer - Each layer has specific daq optical link
+
+    So three CSV tables are necessary for providing this mapping.
+    We can't have multiple different detector maps during a single
+    run, so this class is meant to be a singleton.
+
+    Attributes
+    ----------
+    __instance : EcalDetectorMap
+        Singleton instance of this object
+    """
+
+    __instance = None
+
+    def get() :
+        """Get the single instance of the EcalDetectorMap
+
+        Returns
+        -------
+        EcalDetectorMap
+            Single instance of the provider
+        """
+        return EcalGeometryProvider.__instance
+
+    def __init__(self, cell_map, motherboard_map, layer_map) :
+        if EcalDetectorMap.__instance != None :
+            raise Exception('EcalDetectorMap is a singleton class and should only be created once. You can retrieve the single instance with EcalDetectorMap.get()')
+        else:
+            # the name needs to match the conditions object name in EcalDetectorMap.h
+            super().__init__("EcalDetectorMap","ecal::EcalDetectorMapLoader","Ecal")
+            self.cell_map = cell_map
+            self.motherboard_map = motherboard_map
+            self.layer_map = layer_map
+

src/Ecal/EcalDetectorMap.cxx

@@ -13,9 +13,9 @@ class EcalDetectorMapLoader : public framework::ConditionsObjectProvider {
                         framework::Process& process)
       : ConditionsObjectProvider(EcalDetectorMap::CONDITIONS_OBJECT_NAME,
                                  tagname, parameters, process), theMap_{0} {
-    cellMap_=parameters.getParameter<std::string>("CellMap");
-    motherboardMap_=parameters.getParameter<std::string>("MotherboardMap");
-    layerMap_=parameters.getParameter<std::string>("LayerMap");
+    cellMap_=parameters.getParameter<std::string>("cell_map");
+    motherboardMap_=parameters.getParameter<std::string>("motherboard_map");
+    layerMap_=parameters.getParameter<std::string>("layer_map");
   }
 
   virtual std::pair<const framework::ConditionsObject*,