freddo.dtalk2.broker.netty.NettyBroker.java Source code

Introduction

Here is the source code for freddo.dtalk2.broker.netty.NettyBroker.java

Source

/*
 * Copyright (c) 2013-2015 ArkaSoft LLC.
 * 
 * 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 freddo.dtalk2.broker.netty;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.http.HttpObjectAggregator;
import io.netty.handler.codec.http.HttpServerCodec;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;

import java.net.InetSocketAddress;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import freddo.dtalk2.DTalkConfiguration;
import freddo.dtalk2.broker.Broker;

public class NettyBroker implements Broker {
    private static final Logger LOG = LoggerFactory.getLogger(NettyBroker.class);

    private NioEventLoopGroup mBossGroup;
    private NioEventLoopGroup mWorkerGroup;

    private InetSocketAddress mSocketAddress;

    public InetSocketAddress getSocketAddress() {
        return mSocketAddress;
    }

    @Override
    public void initialize(DTalkConfiguration config) {
        mSocketAddress = new InetSocketAddress(config.getAddress(), config.getPort());
        mBossGroup = new NioEventLoopGroup();
        mWorkerGroup = new NioEventLoopGroup();
    }

    @Override
    public void start() {
        ServerBootstrap b = new ServerBootstrap();
        b.group(mBossGroup, mWorkerGroup).handler(new LoggingHandler(LogLevel.INFO))
                .channel(NioServerSocketChannel.class).childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline pipeline = ch.pipeline();
                        // if (sslCtx != null) {
                        // pipeline.addLast(sslCtx.newHandler(ch.alloc()));
                        // }
                        pipeline.addLast(new HttpServerCodec());
                        pipeline.addLast(new HttpObjectAggregator(65536));
                        pipeline.addLast(new NettyBrokerHandler());
                    }
                });

        try {
            // Bind and start to accept incoming connections.
            Channel ch = b.bind(mSocketAddress).sync().channel();
            mSocketAddress = (InetSocketAddress) ch.localAddress();
            LOG.info("Server binded host: {}, port: {}", mSocketAddress.getHostName(), mSocketAddress.getPort());
        } catch (InterruptedException ex) {
            LOG.error(null, ex);
        }
    }

    @Override
    public void shutdown() {
        LOG.trace(">>> shutdown");

        if (mWorkerGroup == null) {
            throw new IllegalStateException("Invoked close on a Broker that wasn't initialized");
        }
        if (mBossGroup == null) {
            throw new IllegalStateException("Invoked close on a Broker that wasn't initialized");
        }

        mWorkerGroup.shutdownGracefully();
        mBossGroup.shutdownGracefully();
    }

}