/*
* Copyright (C) 2013 Burton Alexander
*
* 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., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
package asia.stampy.server.netty.transaction;
import java.lang.invoke.MethodHandles;
import java.net.InetSocketAddress;
import javax.annotation.Resource;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import asia.stampy.common.StampyLibrary;
import asia.stampy.common.gateway.HostPort;
import asia.stampy.common.message.StompMessageType;
import asia.stampy.server.listener.transaction.AbstractTransactionListener;
import asia.stampy.server.netty.ServerNettyMessageGateway;
/**
* This class manages transactional boundaries, ensuring that a transaction has
* been started prior to an {@link StompMessageType#ABORT} or.
*
* {@link StompMessageType#COMMIT} and that a transaction is began only once.
*/
@Resource
@StampyLibrary(libraryName = "stampy-NETTY-client-server-RI")
public class NettyTransactionListener extends AbstractTransactionListener<ServerNettyMessageGateway> {
private static final Logger log = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
/*
* (non-Javadoc)
*
* @see asia.stampy.server.listener.transaction.AbstractTransactionListener#
* ensureCleanup()
*/
@Override
protected void ensureCleanup() {
getGateway().addHandler(new SimpleChannelUpstreamHandler() {
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
HostPort hostPort = new HostPort((InetSocketAddress) ctx.getChannel().getRemoteAddress());
if (activeTransactions.containsKey(hostPort)) {
log.debug("{} session terminated with outstanding transaction, cleaning up", hostPort);
activeTransactions.remove(hostPort);
}
}
});
}
}