Java Unzip ZipFile unzip(final File zip, final File patchDir)

Description

unpack...

License

Open Source License

Parameter

Parameter	Description
zip	the zip
patchDir	the patch dir

Exception

Parameter	Description
IOException	an exception

Declaration

public static void unzip(final File zip, final File patchDir) throws IOException 

Method Source Code

//package com.java2s;
/*//www  . ja va2  s. c  o m
 * JBoss, Home of Professional Open Source.
 * Copyright 2016, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.Files;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;

public class Main {
    /**
     * unpack...
     *
     * @param zip the zip
     * @param patchDir the patch dir
     * @throws IOException
     */
    public static void unzip(final File zip, final File patchDir) throws IOException {
        try (final ZipFile zipFile = new ZipFile(zip)) {
            unzip(zipFile, patchDir);
            zipFile.close();
        }
    }

    /**
     * unpack...
     *
     * @param zip the zip
     * @param patchDir the patch dir
     * @throws IOException
     */
    private static void unzip(final ZipFile zip, final File patchDir) throws IOException {
        final Enumeration<? extends ZipEntry> entries = zip.entries();
        while (entries.hasMoreElements()) {
            final ZipEntry entry = entries.nextElement();
            final String name = entry.getName();
            final File current = new File(patchDir, name);
            if (entry.isDirectory()) {
                continue;
            } else {
                if (!current.getParentFile().exists()) {
                    current.getParentFile().mkdirs();
                }
                try (final InputStream eis = zip.getInputStream(entry)) {
                    Files.copy(eis, current.toPath());
                    //copy(eis, current);
                }
            }
        }
    }
}

Related

1. unzip(byte[] zippedBytes)
2. unzip(File srcFile, File toDir)
3. unzip(final File zipFile, final String suffix)
4. unzip(ZipEntry entry, ZipFile zipfile, File explodedDir)
5. unzip(ZipFile zip, File fileDir)
6. unzip(ZipFile zipFile, File dest)