Java Zip Folder zipFolder(File root)

Description

zip Folder

License

Apache License

Declaration

static File zipFolder(File root) throws IOException 

Method Source Code

//package com.java2s;
/*//from ww  w. ja v  a  2  s  .  c om
 * Copyright 2011 Red Hat inc. and third party contributors as noted 
 * by the author tags.
 * 
 * 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.
 */

import java.io.*;

import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Main {
    static File zipFolder(File root) throws IOException {
        if (!root.isDirectory())
            throw new IOException("Zip root must be a folder");
        File zipFile = File.createTempFile("module-doc", ".zip");
        try {
            ZipOutputStream os = new ZipOutputStream(new FileOutputStream(zipFile));
            try {
                for (File f : root.listFiles())
                    zipInternal("", f, os);
            } finally {
                os.flush();
                os.close();
            }
            return zipFile;
        } catch (IOException x) {
            zipFile.delete();
            throw x;
        }
    }

    private static void zipInternal(String path, File file, ZipOutputStream os) throws IOException {
        String filePath = path + "/" + file.getName();
        if (file.isDirectory()) {
            for (File f : file.listFiles())
                zipInternal(filePath, f, os);
        } else {
            ZipEntry entry = new ZipEntry(filePath);
            os.putNextEntry(entry);
            FileInputStream in = new FileInputStream(file);
            try {
                copyStreamNoClose(in, os);
            } finally {
                in.close();
            }
            os.closeEntry();
        }
    }

    private static void copyStreamNoClose(InputStream in, OutputStream out) throws IOException {
        final byte[] bytes = new byte[8192];
        int cnt;
        while ((cnt = in.read(bytes)) != -1) {
            out.write(bytes, 0, cnt);
        }
        out.flush();
    }
}

Related

1. zipDir(String dir2zip, ZipOutputStream zipOut, String zipFileName)
2. zipDir(String dir2zip, ZipOutputStream zos)
3. zipDir(String directory, String zipName)
4. zipDir(String origDir, File dirObj, ZipOutputStream zos)
5. zipFolder(File root)
6. zipFolder(File source, File destination)
7. zipFolder(File srcFolder, File destZipFile, boolean zipOnlySrcFolderContentsAndNotSrcFolder)
8. zipFolder(File srcFolder, String destZipFile)
9. zipFolder(final File directory, final String path, final ZipOutputStream out)