Java Directory Copy copyDirectory(File sourceLocation, File targetLocation, boolean overwrite)

Description

Copy a file or directory to another.

License

Open Source License

Parameter

Parameter	Description
sourceLocation	the source
targetLocation	the destination
overwrite	If true, overwrite files in the targetLocation

Exception

Parameter	Description
IOException	an exception

Declaration

public static void copyDirectory(File sourceLocation,
        File targetLocation, boolean overwrite) throws IOException 

Method Source Code

//package com.java2s;
/*//from w  w  w .  j  a v a  2s  .com
 * Copyright (c) 2010 The Regents of the University of California.
 * All rights reserved.
 *
 * '$Author: crawl $'
 * '$Date: 2012-08-03 09:30:04 -0700 (Fri, 03 Aug 2012) $' 
 * '$Revision: 30343 $'
 * 
 * Permission is hereby granted, without written agreement and without
 * license or royalty fees, to use, copy, modify, and distribute this
 * software and its documentation for any purpose, provided that the above
 * copyright notice and the following two paragraphs appear in all copies
 * of this software.
 *
 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
 * FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
 * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
 * THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
 * PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
 * CALIFORNIA HAS NO OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
 * ENHANCEMENTS, OR MODIFICATIONS.
 *
 */

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

import java.io.OutputStream;

public class Main {
    /** Copy a file or directory to another. If the source is a directory,
     *  the contents are recursively copied.
     * @param sourceLocation the source
     * @param targetLocation the destination
     * @param overwrite If true, overwrite files in the targetLocation
     * @throws IOException
     */
    public static void copyDirectory(File sourceLocation,
            File targetLocation, boolean overwrite) throws IOException {

        if (sourceLocation.isDirectory()) {
            if (!targetLocation.exists()) {
                boolean created = targetLocation.mkdirs();
                if (!created) {
                    System.out
                            .println("FileUtil copyDirectory ERROR couldn't mkdirs:"
                                    + targetLocation);
                    // if we couldn't create the directories, stop copying
                    return;
                }
            }

            String[] children = sourceLocation.list();
            for (int i = 0; i < children.length; i++) {
                copyDirectory(new File(sourceLocation, children[i]),
                        new File(targetLocation, children[i]), overwrite);
            }
        } else if (overwrite || !targetLocation.exists()) {
            InputStream in = new FileInputStream(sourceLocation);
            OutputStream out = new FileOutputStream(targetLocation);

            // Copy the bits from instream to outstream
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
            in.close();
            out.close();

            //set executable property
            if (sourceLocation.canExecute())
                targetLocation.setExecutable(true);
        }
    }
}

Related

1. copyDirectory(File sourceDir, File destinationDir)
2. copyDirectory(File sourceLocation, File targetLocation)
3. copyDirectory(File sourceLocation, File targetLocation)
4. copyDirectory(File sourceLocation, File targetLocation)
5. copyDirectory(File sourceLocation, File targetLocation)
6. copyDirectory(File sourceLocation, File targetLocation, int bufferSize)
7. copyDirectory(File sourceLocation, File targetLocation, String[] fileExtensions)