Java File Write via ByteBuffer write(InputStream source, File target)

Description

Writes an InputStream to disk.

License

Open Source License

Parameter

Parameter	Description
source	the source stream
target	the target disk location

Exception

Parameter	Description
IOException	if the write encountered an error

Declaration

public static void write(InputStream source, File target) throws IOException

Method Source Code


//package com.java2s;
/*/*from   w w w.  java 2 s.c  o m*/
 * Fabric3
 * Copyright (c) 2009-2013 Metaform Systems
 *
 * Fabric3 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, with the
 * following exception:
 *
 * Linking this software statically or dynamically with other
 * modules is making a combined work based on this software.
 * Thus, the terms and conditions of the GNU General Public
 * License cover the whole combination.
 *
 * As a special exception, the copyright holders of this software
 * give you permission to link this software with independent
 * modules to produce an executable, regardless of the license
 * terms of these independent modules, and to copy and distribute
 * the resulting executable under terms of your choice, provided
 * that you also meet, for each linked independent module, the
 * terms and conditions of the license of that module. An
 * independent module is a module which is not derived from or
 * based on this software. If you modify this software, you may
 * extend this exception to your version of the software, but
 * you are not obligated to do so. If you do not wish to do so,
 * delete this exception statement from your version.
 *
 * Fabric3 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 Fabric3.
 * If not, see <http://www.gnu.org/licenses/>.
 *
 * ----------------------------------------------------
 *
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 *
 */

import java.io.File;

import java.io.IOException;
import java.io.InputStream;
import java.io.RandomAccessFile;

import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;

public class Main {
    /**
     * Writes an InputStream to disk.
     *
     * @param source the source stream
     * @param target the target disk location
     * @throws IOException if the write encountered an error
     */
    public static void write(InputStream source, File target) throws IOException {
        RandomAccessFile file = new RandomAccessFile(target, "rw");
        FileChannel channel = null;
        FileLock lock = null;
        try {
            channel = file.getChannel();
            lock = channel.lock();
            ByteBuffer buffer = ByteBuffer.allocate(1024);
            byte[] bytes = buffer.array();
            int limit;
            while (-1 != (limit = source.read(bytes))) {
                buffer.flip();
                buffer.limit(limit);
                while (buffer.hasRemaining()) {
                    channel.write(buffer);
                }
                buffer.clear();
            }
            channel.force(true);
        } finally {
            if (channel != null) {
                if (lock != null) {
                    lock.release();
                }
                channel.close();
            }
            file.close();
        }

    }
}

Java File Write via ByteBuffer write(InputStream source, File target)

Description

License

Parameter

Exception

Declaration

Method Source Code

Related