Trying to add the configuration of the multi dir tree

src/main/java/org/embulk/input/filename/FilenameFileInputPlugin.java

@@ -215,12 +215,16 @@ public class FilenameFileInputPlugin implements FileInputPlugin
             FileInputPlugin.Control control)
     {
         PluginTask task = taskSource.loadTask(PluginTask.class);
+        
+        // Here the taskSource contains all the Configuration of the 'in'
         log.info("The taskSource of the FileName in the ConfigDiff resume: " + taskSource.toString());
+        
+        // Here will run all the tasks. Each task is to deal with a file.
         control.run(taskSource, taskCount);
-      log.info("Filename 1 stop point");
+        
         // build next config
         ConfigDiff configDiff = Exec.newConfigDiff();
-        log.info("Filename 2 stop point");
+        
         // last_path
         if (task.getFiles().isEmpty()) {
             // keep the last value
@@ -311,6 +315,8 @@ public class FilenameFileInputPlugin implements FileInputPlugin
     public TransactionalFileInput open(TaskSource taskSource, int taskIndex)
     {
         final PluginTask task = taskSource.loadTask(PluginTask.class);
+        
+        log.info("The task in open: " + taskSource.toString());
         final String path = task.getFiles().get(taskIndex);
 
         return new InputStreamTransactionalFileInput(