Java tutorial
/* * Copyright 2014 Dream.Lee * * 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.hummer.server; import io.netty.channel.Channel; import io.netty.channel.ChannelHandlerAdapter; import io.netty.channel.ChannelHandlerContext; import java.net.InetSocketAddress; import java.util.List; import java.util.concurrent.CopyOnWriteArrayList; import org.hummer.api.ContextConstants; import org.hummer.api.InvocationContext; import org.hummer.api.Request; import org.hummer.api.event.Publisher; import org.hummer.service.ServiceLocator; public class HummerServerHandler extends ChannelHandlerAdapter { public static final List<Channel> channels = new CopyOnWriteArrayList<Channel>(); @SuppressWarnings("unchecked") private static final Publisher<Request> requestPublisher = ServiceLocator.loadService(Publisher.class, "request"); @Override public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception { InvocationContext.putValue(ContextConstants.REMOTE_IP, ((InetSocketAddress) ctx.channel().remoteAddress()).getHostName()); InvocationContext.putValue(ContextConstants.REMOTE_PORT, ((InetSocketAddress) ctx.channel().remoteAddress()).getPort()); InvocationContext.putValue(ContextConstants.NETTY_CHANNEL, ctx.channel()); requestPublisher.publish(ctx.channel(), (Request) msg); } @Override public void channelActive(ChannelHandlerContext ctx) throws Exception { super.channelActive(ctx); } @Override public void channelRegistered(ChannelHandlerContext ctx) throws Exception { channels.add(ctx.channel()); } @Override public void channelInactive(ChannelHandlerContext ctx) throws Exception { channels.remove(ctx.channel()); } }