com.feingto.iot.server.bootstrap.IoTServerBootstrap Maven / Gradle / Ivy

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package com.feingto.iot.server.bootstrap;

import com.feingto.iot.common.bootstrap.SimpleHandlerLoader;
import com.feingto.iot.common.model.enums.Protocol;
import com.feingto.iot.server.config.properties.NettyProperties;
import com.feingto.iot.server.handler.HttpRequestHandler;
import com.feingto.iot.server.handler.MqttMessageHandler;
import com.feingto.iot.server.handler.TcpMessageHandler;
import com.feingto.iot.server.handler.WebSocketMessageHandler;
import com.feingto.iot.server.util.SslContextLoader;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import io.netty.handler.ssl.SslHandler;
import io.netty.handler.timeout.IdleStateHandler;
import io.netty.util.concurrent.DefaultThreadFactory;
import lombok.Setter;
import lombok.experimental.Accessors;
import lombok.extern.slf4j.Slf4j;

import javax.net.ssl.SSLEngine;
import java.util.concurrent.TimeUnit;

/**
 * IoT 服务启动器
 *
 * @author longfei
 */
@Slf4j
@Accessors(fluent = true)
public class IoTServerBootstrap {
    @Setter
    private Protocol protocol;

    @Setter
    private int port;

    @Setter
    private NettyProperties config;

    public void run() {
        EventLoopGroup bossGroup = new NioEventLoopGroup(config.getBossThread(), new DefaultThreadFactory("BOSS_"));
        EventLoopGroup workGroup = new NioEventLoopGroup(config.getWorkThread(), new DefaultThreadFactory("WORK_"));
        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(bossGroup, workGroup)
                    .channel(NioServerSocketChannel.class)
                    .option(ChannelOption.SO_BACKLOG, config.getBacklog())
                    .childOption(ChannelOption.SO_KEEPALIVE, config.isKeepalive())
                    .handler(new LoggingHandler(LogLevel.INFO))
                    .childHandler(new ChannelInitializer() {
                        @Override
                        protected void initChannel(SocketChannel ch) {
                            if (config.isSsl()) {
                                SSLEngine engine = SslContextLoader
                                        .initialize(config.getKeyStore(), config.getKeyStorePassword())
                                        .newEngine(ch.alloc());
                                engine.setUseClientMode(false);
                                engine.setNeedClientAuth(false);
                                ch.pipeline().addLast(new SslHandler(engine));
                            }
                            intProtocolHandler(ch.pipeline());
                        }
                    });

            // Bind and start to accept incoming connections
            Channel channel = bootstrap.bind(port).sync().channel();

            switch (this.protocol) {
                case TCP:
                    log.info("[{}] Accepting connections at: {}", protocol, "tcp://0.0.0.0:" + port);
                    break;
                case WS:
                    log.info("[{}] Accepting connections at: {}", protocol, "ws://0.0.0.0:" + port + "/websocket");
                    break;
                case MQTT:
                    log.info("[{}] Accepting connections at: {}", protocol, "tcp://0.0.0.0:" + port);
                    break;
                case MQTT_WS:
                    log.info("[{}] Accepting connections at: {}", protocol, "ws://0.0.0.0:" + port + "/mqtt");
                    break;
            }

            // Wait until the server socket is closed
            channel.closeFuture().sync();
        } catch (Exception e) {
            log.error("IoT [{}] server exception: {}", protocol, e.getMessage());
            throw new RuntimeException(e.getCause());
        } finally {
            log.info("IoT [{}] server closing...", protocol);
            bossGroup.shutdownGracefully();
            workGroup.shutdownGracefully();
        }
    }

    private void intProtocolHandler(ChannelPipeline channelPipeline) {
        switch (this.protocol) {
            case TCP:
                SimpleHandlerLoader.getTcpHandlers().forEach(channelPipeline::addLast);
                channelPipeline.addLast(new IdleStateHandler(config.getMqtt().getTimeout(),
                        0, 0, TimeUnit.SECONDS));
                channelPipeline.addLast(new TcpMessageHandler());
                break;
            case WS:
                SimpleHandlerLoader.getHttpChannelHandlers().forEach(channelPipeline::addLast);
                channelPipeline.addLast(new WebSocketMessageHandler());
                channelPipeline.addLast(new HttpRequestHandler());
                break;
            case MQTT:
                SimpleHandlerLoader.getMqttChannelHandlers().forEach(channelPipeline::addLast);
                channelPipeline.addLast(new MqttMessageHandler());
                break;
            case MQTT_WS:
                SimpleHandlerLoader.getMqttWsChannelHandlers().forEach(channelPipeline::addLast);
                channelPipeline.addLast(new MqttMessageHandler());
                break;
        }
    }
}