Add code to discover if a top level folder exists in the domain

Author: CarolynRountree

core/src/main/python/wlsdeploy/tool/discover/discoverer.py

@@ -483,6 +483,17 @@ def _get_model_name(self, location, wlst_name):
                              class_name=_class_name, method_name=_method_name)
         return model_name
 
+    def _topfolder_exists(self, model_top_folder_name):
+        """
+        Check to see if the folder represented by the top folder name exists at the current location.
+        There is not a way to check for wlst_type for top folders. The top folder name and the wlst name
+        must be the same.
+        :param model_top_folder_name: to check for at top directory
+        :return: True if the folder exists at the current location in the domain
+        """
+        result = self._wlst_helper.lsc('/', log_throwing=False)
+        return model_top_folder_name in result
+
     def _subfolder_exists(self, model_folder_name, location):
         """
         Check to see if the folder represented by the model folder name exists at the current loction

core/src/main/python/wlsdeploy/tool/discover/topology_discoverer.py

@@ -353,7 +353,7 @@ def _get_nm_properties(self):
         model_top_folder_name = model_constants.NM_PROPERTIES
         result = OrderedDict()
         location = LocationContext(self._base_location)
-        if self._subfolder_exists(model_top_folder_name, location):
+        if self._topfolder_exists(model_top_folder_name):
             _logger.info('WLSDPLY-06627', class_name=_class_name, method_name=_method_name)
             location.append_location(model_top_folder_name)
             self._populate_model_parameters(result, location)