de.jwi.zip.Zipper.java Source code

Introduction

Here is the source code for de.jwi.zip.Zipper.java

Source

package de.jwi.zip;

/*
 * jFM - Java Web File Manager
 * 
 * Copyright (C) 2004 Juergen Weber
 * 
 * This file is part of jFM.
 * 
 * jFM 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.
 * 
 * jFM 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 jFM; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.filefilter.IOFileFilter;

/**
 * @author Jrgen Weber
 * Source file created on 30.03.2004
 *  
 */
public class Zipper {

    private static final int BUFSIZE = 1024;

    /*
     * @param base if base != null &&  f.getPath().startsWith(base.getPath()) 
     * then skip base.getPath() from zip entry name
     */

    public void zip(ZipOutputStream out, File f, File base) throws IOException {
        String name = f.getPath().replace('\\', '/');

        if (base != null) {
            String basename = base.getPath().replace('\\', '/');

            if (name.startsWith(basename)) {
                name = name.substring(basename.length());
            }
        }

        if (name.startsWith("/")) {
            name = name.substring(1);
        }

        ZipEntry entry = new ZipEntry(name);
        entry.setTime(f.lastModified());

        out.putNextEntry(entry);

        FileInputStream is = new FileInputStream(f);

        byte[] buf = new byte[BUFSIZE];

        try {
            int l;
            while ((l = is.read(buf)) > -1) {
                out.write(buf, 0, l);
            }
        } finally {
            is.close();
        }
        out.closeEntry();

    }

    public void zip(ZipOutputStream out, Collection c, File vpath) throws IOException {
        Iterator it = c.iterator();
        while (it.hasNext()) {
            File f = (File) it.next();
            zip(out, f, vpath);
        }
    }

    public static void main(String[] args) throws Exception {
        ZipOutputStream z = new ZipOutputStream(new FileOutputStream("d:/temp/myfirst.zip"));

        IOFileFilter filter = new IOFileFilter() {

            public boolean accept(java.io.File file) {
                return true;
            }

            public boolean accept(java.io.File dir, java.lang.String name) {
                return true;
            }
        };

        Collection c = FileUtils.listFiles(new File("/java/javadocs/j2sdk-1.4.1/docs/tooldocs"), filter, filter);

        new Zipper().zip(z, c, new File("/java/javadocs/j2sdk-1.4.1"));

        z.close();

    }
}