Java Zip Directory zipDirectory(ZipOutputStream out, String stripPath, File dir, char pathSeparator)

Description

Uses code fragments from Jakarta-Ant, Copyright: Apache Software Foundation.

License

Open Source License

Parameter

Parameter	Description
out	the out
stripPath	the strip path
dir	the dir
pathSeparator	the path separator

Exception

Parameter	Description
IOException	Signals that an I/O exception has occurred.

Declaration

private static void zipDirectory(ZipOutputStream out, String stripPath, File dir, char pathSeparator)
        throws IOException

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2010 Maciej Kaniewski (mk@firegnom.com).
 *  /*from w  ww  . j  a  v a2s .co m*/
 *     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 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, write to the Free Software Foundation,
 *     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
 *  
 *     Contributors:
 *      Maciej Kaniewski (mk@firegnom.com) - initial API and implementation
 ******************************************************************************/

import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;

import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

public class Main {
    /**
     * Uses code fragments from Jakarta-Ant, Copyright: Apache Software
     * Foundation.
     *
     * @param out the out
     * @param stripPath the strip path
     * @param dir the dir
     * @param pathSeparator the path separator
     * @throws IOException Signals that an I/O exception has occurred.
     */
    private static void zipDirectory(ZipOutputStream out, String stripPath, File dir, char pathSeparator)
            throws IOException {

        String[] entries = dir.list();

        if (entries == null || entries.length == 0) {
            return;
        }

        // recurse via entries
        for (String entry : entries) {
            File file = new File(dir, entry);
            if (file.isDirectory()) {
                zipDirectory(out, stripPath, file, pathSeparator);
            } else {
                zipFile(out, stripPath, file, pathSeparator);
            }
        }
    }

    /**
     * Uses code fragments from Jakarta-Ant, Copyright: Apache Software
     * Foundation.
     *
     * @param out the out
     * @param stripPath the strip path
     * @param file the file
     * @param pathSeparator the path separator
     * @throws IOException Signals that an I/O exception has occurred.
     */
    private static void zipFile(ZipOutputStream out, String stripPath, File file, char pathSeparator)
            throws IOException {
        ZipEntry ze = new ZipEntry(processPath(file.getPath(), stripPath, pathSeparator));
        ze.setTime(file.lastModified());
        out.putNextEntry(ze);

        byte[] buffer = new byte[8 * 1024];
        BufferedInputStream in = new BufferedInputStream(new FileInputStream(file), buffer.length);

        try {
            int count = 0;
            while ((count = in.read(buffer, 0, buffer.length)) >= 0) {
                if (count != 0) {
                    out.write(buffer, 0, count);
                }
            }
        } finally {
            in.close();
        }
    }

    /**
     * Process path.
     *
     * @param path the path
     * @param stripPath the strip path
     * @param pathSeparator the path separator
     * @return the string
     */
    private static String processPath(String path, String stripPath, char pathSeparator) {
        if (!path.startsWith(stripPath)) {
            throw new IllegalArgumentException("Invalid entry: " + path + "; expected to start with " + stripPath);
        }

        return path.substring(stripPath.length()).replace(File.separatorChar, pathSeparator);
    }
}

Java Zip Directory zipDirectory(ZipOutputStream out, String stripPath, File dir, char pathSeparator)

Description

License

Parameter

Exception

Declaration

Method Source Code

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