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xSocket http extension

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/*
 *  Copyright (c) xsocket.org, 2006 - 2008. All rights reserved.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Please refer to the LGPL license at: http://www.gnu.org/copyleft/lesser.txt
 * The latest copy of this software may be found on http://www.xsocket.org/
 */
package org.xsocket.connection.http;

import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.ReadableByteChannel;





final class StreamingBodyDatasource extends NonBlockingBodyDataSource {

	private ReadableByteChannel channel = null;
	
	public StreamingBodyDatasource(String encoding, ReadableByteChannel channel) {
		super(encoding);
		this.channel = channel;
	}
	
	
	
	@Override
	public void setDataHandler(IBodyDataHandler bodyHandler) throws IOException {
		ByteBuffer buffer = null;
		
		do {
			buffer = ByteBuffer.allocate(getWriteTransferChunkeSize());
			channel.read(buffer);
			
			buffer.flip();
			append(buffer);
			if (buffer.limit() < buffer.capacity()) {
				setComplete(true);
				channel.close();
			}
			
			bodyHandler.onData(this);
			
		} while (!isComplete());
		
		bodyHandler.onData(this);
	}	
}