/*
* eXist Open Source Native XML Database
* Copyright (C) 2009 The eXist Project
* http://exist-db.org
*
* This program 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
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: ResponseEncoder.java 12465 2010-08-20 09:07:49Z shabanovd $
*/
package org.exist.debuggee.dbgp;
import org.apache.log4j.Logger;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoderAdapter;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
import org.exist.debuggee.Packet;
/**
* @author <a href="mailto:shabanovd@gmail.com">Dmitriy Shabanov</a>
*
*/
public class ResponseEncoder extends ProtocolEncoderAdapter {
private final static Logger LOG = Logger.getLogger(ResponseEncoder.class);
public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {
Packet packet = (Packet) message;
byte[] response = packet.responseBytes();
String length = String.valueOf(response.length);
if (LOG.isDebugEnabled())
LOG.debug("" + length + " byte(s) : " + packet.toString());
IoBuffer buffer = IoBuffer.allocate(response.length+length.length()+2, false);
buffer.put(length.getBytes());
buffer.put((byte)0);
buffer.put(response);
buffer.put((byte)0);
buffer.flip();
out.write(buffer);
}
}