/*
 * Copyright 2000-2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.jetspeed.util;

import java.io.File;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;


/*
 * File System Directory Utilities. Some utilities that java.io doesn't give us.
 *
 *    rmdir() - removes a directory and all subdirectories and files underneath.
 *
 * @author David S. Taylor <a href="mailto:taylor@apache.org">David Sean Taylor</a>
 * @version $Id: DirectoryUtils.java,v 1.3 2004/03/08 00:34:31 jford Exp $
 *
 */
public class DirectoryUtils
{
    private final static Log log = LogFactory.getLog(DirectoryUtils.class);
            
    public static void main(String[] args)
    {
        DirectoryUtils.rmdir(new File(args[0]));
    }

    /**
     *  Removes a directory and all subdirectories and files beneath it.
     *
     * @param directory The name of the root directory to be deleted.
     * @return boolean If all went successful, returns true, otherwise false.
     * 
     */
    public static final boolean rmdir(File dir)
    {    
		if (dir.isDirectory())
		{
			String[] children = dir.list();
			for (int i = 0; i < children.length; i++)
			{
				boolean success = rmdir(new File(dir, children[i]));
				if (!success)
				{
					return false;
				}
			}
		}

		// The directory is now empty so delete it OR it is a plain file
		return dir.delete();
    }

    /**
     *  Recursive deletion engine, traverses through all subdirectories, 
     *  attempting to delete every file and directory it comes across.
     *  NOTE: this version doesn't do any security checks, nor does it 
     *  check for file modes and attempt to change them.
     *
     * @param path The directory path to be traversed.
     * 
     */            
//    private static void deleteTraversal(String path)
//    {
//        File file = new File(path);
//        if (file.isFile()) 
//        {
//            try 
//            {
//                file.delete();
//            }
//            catch (Exception e)
//            {
//                log.error("Failed to Delete file: " + path + " : " , e);
//                file.deleteOnExit(); // try to get it later...
//            }
//        } 
//        else if (file.isDirectory()) 
//        {
//            if (!path.endsWith(File.separator))
//                path += File.separator;
//
//            String list[] = file.list();
//
//            // Process all files recursivly
//            for(int ix = 0; list != null && ix < list.length; ix++)
//                deleteTraversal(path + list[ix]);
//
//            // now try to delete the directory
//            try 
//            {
//                file.delete();
//            }
//            catch (Exception e)
//            {
//                log.error("Failed to Delete directory: " + path + " : " , e);
//                file.deleteOnExit(); // try to get it later...
//            }
//            
//        }
//    }            
}


