Copies the contents of the FileChannel to another FileChannel - Java java.nio.channels

Java examples for java.nio.channels:FileChannel

  1. HOME
  2. Java
  3. java.nio.channels
  4. FileChannel

Description

Copies the contents of the FileChannel to another FileChannel

Demo Code

/*//from w w  w  .ja v a 2 s  .co  m
 * Created on 15-sep-2005
 *
 * gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
 *
 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 
 USA.
 *
 * For more information, contact:
 *
 *  Generalitat Valenciana
 *   Conselleria d'Infraestructures i Transport
 *   Av. Blasco Ib??ez, 50
 *   46010 VALENCIA
 *   SPAIN
 *
 *      +34 963862235
 *   gvsig@gva.es
 *      www.gvsig.gva.es
 *
 *    or
 *
 *   IVER T.I. S.A
 *   Salamanca 50
 *   46005 Valencia
 *   Spain
 *
 *   +34 963163400
 *   dac@iver.es
 */
//package com.java2s;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class Main {
    /**
     * Copies the contents of the fcin FileChannel to the fcout FileChannel
     * 
     * @param fcin
     * @param fcout
     * 
     * @throws IOException
     */
    public static void copy(FileChannel fcin, FileChannel fcout)
            throws IOException {

        // Esto antes ten?a un problema de que solo copiaba
        // los primeros 100 KBytes. Ahora le hemos puesto
        // un while y hemos comprobado que copia todo el fichero.
        // Ole tus huevos Luis, que tenga que comentar esto
        // y ver c?mo est? el resto del c?digo.
        ByteBuffer buffer = ByteBuffer.allocate(102400);
        buffer.clear();
        int r = 0;
        int position = 0;
        while ((r = fcin.read(buffer, position)) != -1) {
            buffer.flip();
            int bytesWritten = fcout.write(buffer, position);
            position += bytesWritten;
            buffer.clear();
        }
    }
}

Related Tutorials