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Socket.IO Java server based on Netty

There is a newer version: 1.1.2

/**
 * Copyright 2012 Ronen Hamias, Anton Kharenko
 *
 * 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.socketio.netty.pipeline;

import org.socketio.netty.packets.Packet;
import org.socketio.netty.packets.PacketType;
import org.socketio.netty.session.IManagedSession;
import org.socketio.netty.storage.SessionStorage;

import io.netty.channel.ChannelHandler;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

@ChannelHandler.Sharable
public class HeartbeatHandler extends ChannelInboundHandlerAdapter {

	private final SessionStorage sessionFactory;

	public HeartbeatHandler(SessionStorage sessionFactory) {
		this.sessionFactory = sessionFactory;
	}

	@Override
	public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
		if (msg instanceof Packet) {
			final Packet packet = (Packet) msg;
			if (packet.getType() == PacketType.HEARTBEAT) {
				final String sessionId = packet.getSessionId();
				final IManagedSession session = sessionFactory.getSessionIfExist(sessionId);
				if (session != null) {
					session.acceptPacket(ctx.channel(), packet);
					session.acceptHeartbeat();
				}
				return;
			}
		}
		super.channelRead(ctx, msg);
	}
}