Java Zip Directory zip(File dir2zip, File zipFile)

Description

zip

License

Open Source License

Declaration

public static void zip(File dir2zip, File zipFile) throws Exception

Method Source Code

//package com.java2s;
/*/*from w  ww. j  a va  2  s  . c om*/
 * Copyright (c) 2008-2016, GigaSpaces Technologies, Inc. All Rights Reserved.
 *
 * 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.File;
import java.io.FileInputStream;

import java.io.FileOutputStream;

import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

public class Main {
    final private static Logger logger = Logger
            .getLogger("com.gigaspaces.zip");

    public static void zip(File dir2zip, File zipFile) throws Exception {
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(
                zipFile));
        internalZipDir(dir2zip.getAbsolutePath(),
                dir2zip.getAbsolutePath(), zos);
        zos.close();
    }

    private static void internalZipDir(String baseDir2zip, String dir2zip,
            ZipOutputStream zos) throws Exception {
        //create a new File object based on the directory we have to zip
        File zipDir = new File(dir2zip);
        if (!zipDir.exists()) {
            throw new IllegalArgumentException("Directory to zip ["
                    + zipDir.getAbsolutePath() + "] does not exists");
        }
        if (!zipDir.isDirectory()) {
            throw new IllegalArgumentException("Directory to zip ["
                    + zipDir.getAbsolutePath() + "] is not a directory");
        }
        //get a listing of the directory content
        String[] dirList = zipDir.list();
        if (dirList == null) {
            return;
        }
        byte[] readBuffer = new byte[2156];
        int bytesIn = 0;
        //loop through dirList, and zip the files
        for (int i = 0; i < dirList.length; i++) {
            File f = new File(zipDir, dirList[i]);
            if (f.isDirectory()) {
                //if the File object is a directory, call this
                //function again to add its content recursively
                String filePath = f.getAbsolutePath();
                internalZipDir(baseDir2zip, filePath, zos);
                //loop again
                continue;
            }
            //if we reached here, the File object f was not a directory
            //create a FileInputStream on top of f
            FileInputStream fis = new FileInputStream(f);
            // create a new zip entry
            String path = f.getAbsolutePath().substring(
                    baseDir2zip.length() + 1);
            path = path.replace('\\', '/');
            ZipEntry anEntry = new ZipEntry(path);
            if (logger.isLoggable(Level.FINEST)) {
                logger.finest("Compressing zip entry [" + anEntry.getName()
                        + "] with size [" + anEntry.getSize() + "] at ["
                        + f.getAbsolutePath() + "]");
            }
            //place the zip entry in the ZipOutputStream object
            zos.putNextEntry(anEntry);
            //now write the content of the file to the ZipOutputStream
            while ((bytesIn = fis.read(readBuffer)) != -1) {
                zos.write(readBuffer, 0, bytesIn);
            }
            //close the Stream
            fis.close();
        }
    }
}

Java Zip Directory zip(File dir2zip, File zipFile)

Description

License

Declaration

Method Source Code

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