/*
 * Copyright (C) 2003-2011 eXo Platform SAS.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Affero General Public License
 * as published by the Free Software Foundation; either version 3
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see<http://www.gnu.org/licenses/>.
 */
package org.example.visitor;

import java.io.File;

/**
 * Created by The eXo Platform SAS
 * Author : Nguyen Thanh Hai
 *          haint@exoplatform.com
 * Jul 11, 2011  
 */
public class PrintVisitor
{

   private int level  = 0;
   
   public void visitFileNode(FileNode node) 
   {
      for(int i = 0; i < level; i++) System.out.print("  ");
      System.out.println(node.getFile().getName());
   }
   
   public void visitDirectoryNode(DirectoryNode node)
   {
      for(int i = 0; i < level; i++) System.out.print("  ");
      System.out.println(node.getDirectory().getName());
      level++ ;
      FileSystemNode[] child = node.getChildren() ;
      for(int i = 0; i < child.length; i++) child[i].visit(this) ;
      level-- ;
   }
   
   public static void main(String[] args) throws Exception {
      DirectoryNode node = new DirectoryNode(new File("/home/haint")) ;
      node.visit(new PrintVisitor()) ;
   }
}