zipfilecreator.java

JAVA FTP客户端经典

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
package net.sf.jftp.gui;

import net.sf.jftp.net.*;
import net.sf.jftp.util.*;
import net.sf.jftp.*;

import java.io.*;
import java.util.zip.*;

public class ZipFileCreator
{
    private ZipOutputStream z;

    public ZipFileCreator(String files[], String path, String name) throws Exception
    {
    	z = new ZipOutputStream(new BufferedOutputStream(new FileOutputStream(path+name)));
	perform(files, path, "");
	z.finish();
	z.flush();
	z.close();
    }

    private void perform(String files[], String path, String offset)
    {
	byte buf[] = new byte[4096];

    	for(int i=0; i<files.length; i++)
	{
	 try
	 {
		File f = new File(path+offset +files[i]);
		BufferedInputStream in = null;

		if(f.exists() && !f.isDirectory())
		{
			 in = new BufferedInputStream(new FileInputStream(path+offset + files[i]));
		}
		else if(f.exists())
		{
			if(!files[i].endsWith("/")) files[i] = files[i] +"/";
			perform(f.list(), path, offset + files[i]);
		}
		ZipEntry tmp = new ZipEntry(offset + files[i]);
		z.putNextEntry(tmp);

		int len = 0;

		while( in != null && len != StreamTokenizer.TT_EOF)
		{
		 	len = in.read(buf);
			if(len== StreamTokenizer.TT_EOF) break;
			z.write(buf,0,len);
		}

		z.closeEntry();
	 }
	 catch(Exception ex)
	 {
	 	Log.debug("Skipping a file (no permission?)");
	 }
	}

    }
}