Java FileInputStream Copy copyFile(File source, File destination)

Description

Copy a file from source to destination.

License

Open Source License

Parameter

Parameter	Description
source	a parameter
destination	a parameter

Exception

Parameter	Description
IOException	an exception

Declaration

public static void copyFile(File source, File destination) throws IOException 

Method Source Code

//package com.java2s;
/*/*from   w ww. java  2 s  . c om*/
 * 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; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * 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 library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 * 
 */

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 {
    public static final int DEFAULT_BUFFER_SIZE = 1024;

    /**
     * Copy a file from source to destination.
     * 
     * @param source
     * @param destination
     * @throws IOException
     */
    public static void copyFile(File source, File destination) throws IOException {
        FileOutputStream fos = new FileOutputStream(destination);
        FileInputStream fis = new FileInputStream(source);
        copyStream(fis, fos);
        fos.flush();
        fos.close();
        fis.close();
    }

    /**
     * Copies the data from an InputStream object to an OutputStream object.
     * 
     * @param sourceStream
     *            The input stream to be read.
     * @param destinationStream
     *            The output stream to be written to.
     * @return int value of the number of bytes copied.
     * @exception IOException
     *                from java.io calls.
     */
    public static int copyStream(InputStream sourceStream, OutputStream destinationStream) throws IOException {
        int bytesRead = 0;
        int totalBytes = 0;
        byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];

        while (bytesRead >= 0) {
            bytesRead = sourceStream.read(buffer, 0, buffer.length);

            if (bytesRead > 0) {
                destinationStream.write(buffer, 0, bytesRead);
            }

            totalBytes += bytesRead;
        }
        destinationStream.flush();
        destinationStream.close();
        return totalBytes;
    }
}

Related

1. copyFile(File source, File dest)
2. copyFile(File source, File dest)
3. copyFile(File source, File dest)
4. copyFile(File source, File dest)
5. copyFile(File source, File destination)
6. copyFile(File source, File destination)
7. copyFile(File source, File destination)
8. copyFile(File source, File destination)
9. copyFile(File source, File destination)