Java Zip Folder zipDir(final String dir2zip, final ZipOutputStream zos, final String root)

Description

Create a structured zip archive recursively.

License

Open Source License

Parameter

Parameter	Description
dir2zip	a parameter
zos	a parameter
root	a parameter

Exception

Parameter	Description
IOException	an exception

Declaration

public static void zipDir(final String dir2zip, final ZipOutputStream zos, final String root)
        throws IOException

Method Source Code

//package com.java2s;
/**//from  w  w w.j  a v  a2 s  .  c  o  m
 * Copyright (C) 2015 BonitaSoft S.A.
 * BonitaSoft, 32 rue Gustave Eiffel - 38000 Grenoble
 * This library 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
 * version 2.1 of the License.
 * This library 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
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA 02110-1301, USA.
 **/

import java.io.BufferedOutputStream;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.util.Scanner;

import java.util.zip.ZipEntry;

import java.util.zip.ZipOutputStream;

public class Main {
    private static final String LINE_SEPARATOR = System.getProperty("line.separator");
    private static final int BUFFER_SIZE = 100000;
    public static final String FILE_ENCODING = "UTF-8";

    /**
     * Create a structured zip archive recursively.
     * The string must be OS specific String to represent path.
     *
     * @param dir2zip
     * @param zos
     * @param root
     * @throws IOException
     */
    public static void zipDir(final String dir2zip, final ZipOutputStream zos, final String root)
            throws IOException {
        final File zipDir = new File(dir2zip);
        final byte[] readBuffer = new byte[BUFFER_SIZE];
        int bytesIn = 0;

        for (final String pathName : zipDir.list()) {
            final File file = new File(zipDir, pathName);
            final String path = file.getPath();
            if (file.isDirectory()) {
                zipDir(path, zos, root);
                continue;
            }

            try {
                final ZipEntry anEntry = new ZipEntry(path.substring(root.length() + 1, path.length())
                        .replace(String.valueOf(File.separatorChar), "/"));
                zos.putNextEntry(anEntry);
                bytesIn = +copyFileToZip(zos, readBuffer, file, bytesIn);
                zos.flush();
            } finally {
                zos.closeEntry();
            }
        }
    }

    private static int copyFileToZip(final ZipOutputStream zos, final byte[] readBuffer, final File file,
            final int bytesInOfZip) throws FileNotFoundException, IOException {
        final FileInputStream fis = new FileInputStream(file);
        int bytesIn = bytesInOfZip;
        try {
            while ((bytesIn = fis.read(readBuffer)) != -1) {
                zos.write(readBuffer, 0, bytesIn);
            }
        } finally {
            fis.close();
        }
        return bytesIn;
    }

    /**
     * Read the contents from the given FileInputStream. Return the result as a String.
     *
     * @param inputStream
     *        the stream to read from
     * @return the content read from the inputStream, as a String
     */
    public static String read(final InputStream inputStream) {
        if (inputStream == null) {
            throw new IllegalArgumentException("Input stream is null");
        }
        Scanner scanner = null;
        try {
            scanner = new Scanner(inputStream, FILE_ENCODING);
            return read(scanner);
        } finally {
            if (scanner != null) {
                scanner.close();
            }
        }
    }

    private static String read(final Scanner scanner) {
        final StringBuilder text = new StringBuilder();
        boolean isFirst = true;
        while (scanner.hasNextLine()) {
            if (isFirst) {
                text.append(scanner.nextLine());
            } else {
                text.append(LINE_SEPARATOR + scanner.nextLine());
            }
            isFirst = false;
        }
        return text.toString();
    }

    /**
     * Read the contents of the given file.
     * 
     * @param file
     */
    public static String read(final File file) throws IOException {
        FileInputStream fileInputStream = null;
        try {
            fileInputStream = new FileInputStream(file);
            return read(fileInputStream);
        } finally {
            if (fileInputStream != null) {
                fileInputStream.close();
            }
        }
    }

    public static void write(final File file, final byte[] content) throws FileNotFoundException, IOException {
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;
        try {
            fos = new FileOutputStream(file);
            bos = new BufferedOutputStream(fos);
            bos.write(content);
            bos.flush();
        } finally {
            if (bos != null) {
                bos.close();
            }
            if (fos != null) {
                fos.close();
            }
        }
    }
}

Java Zip Folder zipDir(final String dir2zip, final ZipOutputStream zos, final String root)

Description

License

Parameter

Exception

Declaration

Method Source Code

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