Java Directory Copy copyDirectory(File sourceLocation, File targetLocation)

Description

Copy a directory recursively.

License

Open Source License

Parameter

Parameter	Description
sourceLocation	the original directory.
targetLocation	the destination.

Exception

Parameter	Description
IOException	if the file access fails.

Declaration

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

Method Source Code

//package com.java2s;
/** The FileUtils class contains methods for file and directory handling,
which comprises reading a file, copying or deleting a directory
as well as things like that./*from w w  w. j  ava 2 s  .c om*/
    
<pre>
This file is part of FidoCadJ.
    
FidoCadJ is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
    
FidoCadJ 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 General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with FidoCadJ.  If not, see <http://www.gnu.org/licenses/>.
    
Copyright 2008-2015 by Davide Bucci
</pre>
    
*/

import java.io.*;

public class Main {
    /** Copy a directory recursively.
        
    http://subversivebytes.wordpress.com/2012/11/05/java-copy-directory-
    recursive-delete/
    @param sourceLocation the original directory.
    @param targetLocation the destination.
    @throws IOException if the file access fails.
    */
    public static void copyDirectory(File sourceLocation, File targetLocation) throws IOException {
        if (sourceLocation.isDirectory()) {
            if (!targetLocation.exists() && !targetLocation.mkdir()) {
                throw new IOException("Can not create temp. directory.");
            }

            // Process all the elements of the directory.
            String[] children = sourceLocation.list();
            for (int i = 0; i < children.length; ++i) {
                copyDirectory(new File(sourceLocation, children[i]), new File(targetLocation, children[i]));
            }
        } else {
            copyFile(sourceLocation, targetLocation);
        }
    }

    /** Copy a file from a location to another one.
    @param sourceLocation origin of the file to copy.
    @param targetLocation destination of the file to copy.
    @throws IOException if the file access fails.
    */
    public static void copyFile(File sourceLocation, File targetLocation) throws IOException {
        if (sourceLocation.isDirectory())
            return;

        InputStream in = null;
        OutputStream out = null;

        // The copy is made by bunch of 1024 bytes.
        // I wander whether better OS copy funcions exist.
        try {
            in = new FileInputStream(sourceLocation);
            out = new FileOutputStream(targetLocation);
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        } finally {
            if (out != null)
                out.close();
            if (in != null)
                in.close();
        }
    }
}

Related

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