Issue #3500 back port of loadConfig.py to fix gfe starup issue

Change-Id: I841af0ac81b86e499c0b52dedab64431e7f1ecd7

Former-commit-id: 2a0af03242692708b3e752417ca7d60d28520768

cave/com.raytheon.viz.gfe/python/utility/loadConfig.py

@@ -26,31 +26,35 @@
 #    
 #    Date            Ticket#       Engineer       Description
 #    ------------    ----------    -----------    --------------------------
-#    12/11/09                      njensen       Initial Creation.
-#    08/21/14        3500          bclement      fixed loadPreferences except block
-#    
+#    12/11/09                      njensen        Initial Creation.
+#    04/02/2014        #2729       randerso       Fixed error handling in loadPreferences
 # 
 #
 
 import types
-import LogStream
 from java.util import HashMap, ArrayList
 from java.lang import String, Float, Integer, Boolean
 
 def loadPreferences(config):
     try:
         # import the config file
-        if type(config) is types.StringType:            
-            globals = loadConfig(config)
-        elif type(config) is types.ModuleType:            
-            globals = getGlobals(config)
+        if type(config) is types.StringType:
+            configName = config
+            mod = __import__(config)
+        elif type(config) is types.ModuleType:
+            configName = config.__name__            
+            mod = config
+
+        globals = getGlobals(mod)
 
         from com.raytheon.viz.gfe import Activator, PythonPreferenceStore
         prefs = PythonPreferenceStore(globals)
         Activator.getDefault().setPreferenceStore(prefs)
         return prefs
     except Exception, e:
-        LogStream.logProblem("Unknown or improper config file: ", config)
+        import LogStream
+        import traceback
+        LogStream.logProblem("Unknown or invalid config file: %s\n%s" % (configName, traceback.format_exc()))
         raise Exception, e