/*
* Copyright 2013 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.network.internal;
import org.jboss.netty.channel.ChannelHandlerContext;
import org.jboss.netty.channel.ChannelStateEvent;
import org.jboss.netty.channel.ExceptionEvent;
import org.jboss.netty.channel.MessageEvent;
import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.terasology.protobuf.NetData.NetMessage;
/**
* This Netty handler is used to send and receive messages on the server end
*
* @author Immortius
*/
public class ServerHandler extends SimpleChannelUpstreamHandler {
private static final Logger logger = LoggerFactory.getLogger(ServerHandler.class);
private NetworkSystemImpl networkSystem;
private NetClient client;
public ServerHandler(NetworkSystemImpl networkSystem) {
this.networkSystem = networkSystem;
}
public void connectionComplete(NetClient netClient) {
this.client = netClient;
networkSystem.addClient(client);
}
@Override
public void channelOpen(ChannelHandlerContext ctx, ChannelStateEvent e) {
networkSystem.registerChannel(e.getChannel());
}
@Override
public void channelDisconnected(ChannelHandlerContext ctx, ChannelStateEvent e) throws Exception {
if (client != null) {
networkSystem.removeClient(client);
}
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
NetMessage message = (NetMessage) e.getMessage();
client.messageReceived(message);
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
logger.warn("Unexpected exception from client", e.getCause());
e.getChannel().close();
}
}