Handles range rule in postprocess

lib_afc_mosaic/universe_map_file.py

@@ -208,11 +208,7 @@ class AFCMUniverseMapFile:
             self.process_file(ufilename)
 
         # Perform post-processing
-        if len(self.mosaic_postprocess) is not 0:
         self.postprocessing()
-        else:
-            # copy self.cleaned_import_rows list to self.final_rows list
-            self.final_rows = self.cleaned_import_rows[:]
 
         # Run final steps
         self.write_final_file()
@@ -222,21 +218,21 @@ class AFCMUniverseMapFile:
     def postprocessing(self):
         """
         postprocessing Performs actions for any postprocessing rules defined in the voterset map file
+
+        structure in the map file:
+            "postprocess": {
+                "range": {
+                    "start": 0,
+                    "end": 10000
+                }
+            }
         """
 
-        # structure in the map file
-        # "postprocess": {
-        #     "range": {
-        #         "start": 0,
-        #         "end": 10000
-        #     }
-        # }
+        # need to figure out how to handle rules in defined order
 
-
-        # get list of keys from "postprocess"
-        # if "range" exists,
-        #     get "start" and "end" keys
-        #     copy the range from cleaned_import_rows into final_rows
+        # if no range is defined, this copies the entire list from self.cleaned_import_rows
+        range = self.mosaic_postprocess.get('range', {})
+        self.final_rows = self.cleaned_import_rows[range.get('start', None):range.get('end', None)]
 
         return