Java MqttEncoder类代码示例

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Override
  public void initChannel(SocketChannel ch) {
    ChannelPipeline pipeline = ch.pipeline();
    SslHandler sslHandler = null;
    if (sslHandlerProvider != null) {
      sslHandler = sslHandlerProvider.getSslHandler();
      pipeline.addLast(sslHandler);
    }
    pipeline.addLast("decoder", new MqttDecoder(MAX_PAYLOAD_SIZE));
    pipeline.addLast("encoder", MqttEncoder.INSTANCE);

    MqttTransportHandler handler = new MqttTransportHandler(msgProducer, deviceService, authService, assetService,
        assetAuthService, relationService, sslHandler);
    pipeline.addLast(handler);

//    ch.closeFuture().addListener(handler);

  }
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
public void start(int port) throws Exception {
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new MqttDecoder());
                        ch.pipeline().addLast(MqttEncoder.INSTANCE);
                        ch.pipeline().addLast(new MqttInBoundHandler());
                    }
                })
                .option(ChannelOption.SO_BACKLOG, 1024)
                .childOption(ChannelOption.SO_KEEPALIVE, true);

        ChannelFuture future = bootstrap.bind(port).sync();
        future.channel().closeFuture().sync();
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }

}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
public MQTTHardwareServer(Holder holder) {
    super(holder.props.getProperty("listen.address"),
            holder.props.getIntProperty("hardware.mqtt.port"), holder.transportTypeHolder);

    int hardTimeoutSecs = holder.limits.hardwareIdleTimeout;
    MqttHardwareLoginHandler mqttHardwareLoginHandler = new MqttHardwareLoginHandler(holder);
    HardwareChannelStateHandler hardwareChannelStateHandler =
            new HardwareChannelStateHandler(holder.sessionDao, holder.gcmWrapper);

    channelInitializer = new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline()
                .addLast("MqttIdleStateHandler", new IdleStateHandler(hardTimeoutSecs, hardTimeoutSecs, 0))
                .addLast(hardwareChannelStateHandler)
                .addLast(new MqttDecoder())
                .addLast(MqttEncoder.INSTANCE)
                .addLast(mqttHardwareLoginHandler)
                .addLast(new HardwareNotLoggedHandler());
        }
    };

    log.debug("hard.socket.idle.timeout = {}", hardTimeoutSecs);
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
protected void initChannel(SocketChannel channel) throws Exception {
    ChannelPipeline pipeline = channel.pipeline();
    pipeline.addLast("idleState", new IdleStateHandler(90,0,0, TimeUnit.SECONDS));
    pipeline.addLast("mqttDecoder", new MqttDecoder());
    pipeline.addLast("mqttEncoder", MqttEncoder.INSTANCE);
    pipeline.addLast("mqttHandler", new MqttHandler(new MqttProcessor(server)));
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
private void initChannel(ChannelPipeline pipeline) {

    pipeline.addBefore("handler", "mqttEncoder", MqttEncoder.INSTANCE);
    if (this.options.getMaxMessageSize() > 0) {
      pipeline.addBefore("handler", "mqttDecoder", new MqttDecoder(this.options.getMaxMessageSize()));
    } else {
      // max message size not set, so the default from Netty MQTT codec is used
      pipeline.addBefore("handler", "mqttDecoder", new MqttDecoder());
    }

    // adding the idle state handler for timeout on CONNECT packet
    pipeline.addBefore("handler", "idle", new IdleStateHandler(this.options.timeoutOnConnect(), 0, 0));
    pipeline.addBefore("handler", "timeoutOnConnect", new ChannelDuplexHandler() {

      @Override
      public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {

        if (evt instanceof IdleStateEvent) {
          IdleStateEvent e = (IdleStateEvent) evt;
          if (e.state() == IdleState.READER_IDLE) {
            // as MQTT 3.1.1 describes, if no packet is sent after a "reasonable" time (here CONNECT timeout)
            // the connection is closed
            ctx.channel().close();
          }
        }
      }
    });
  }
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
private void initChannel(ChannelPipeline pipeline) {

    // add into pipeline netty's (en/de)coder
    pipeline.addBefore("handler", "mqttEncoder", MqttEncoder.INSTANCE);

    if (this.options.getMaxMessageSize() > 0) {
      pipeline.addBefore("handler", "mqttDecoder", new MqttDecoder(this.options.getMaxMessageSize()));
    } else {
      // max message size not set, so the default from Netty MQTT codec is used
      pipeline.addBefore("handler", "mqttDecoder", new MqttDecoder());
    }

    if (this.options.isAutoKeepAlive() &&
      this.options.getKeepAliveTimeSeconds() != 0) {

      pipeline.addBefore("handler", "idle",
        new IdleStateHandler(0, this.options.getKeepAliveTimeSeconds(), 0));
      pipeline.addBefore("handler", "keepAliveHandler", new ChannelDuplexHandler() {

        @Override
        public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {

          if (evt instanceof IdleStateEvent) {
            IdleStateEvent e = (IdleStateEvent) evt;
            if (e.state() == IdleState.WRITER_IDLE) {
              ping();
            }
          }
        }
      });
    }
  }
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Test
public void noConnectTest(TestContext context) throws Exception {

  EventLoopGroup group = new NioEventLoopGroup();
  try {

    Bootstrap bootstrap = new Bootstrap();
    bootstrap
      .group(group)
      .channel(NioSocketChannel.class)
      .handler(new ChannelInitializer<SocketChannel>() {
        @Override
        protected void initChannel(SocketChannel ch) throws Exception {

          ChannelPipeline pipeline = ch.pipeline();
          pipeline.addLast("mqttEncoder", MqttEncoder.INSTANCE);
        }
      });

    // Start the client.
    ChannelFuture f = bootstrap.connect(MQTT_SERVER_HOST, MQTT_SERVER_PORT).sync();

    f.channel().writeAndFlush(createPublishMessage());

    // Wait until the connection is closed.
    f.channel().closeFuture().sync();

    context.assertTrue(true);

  } finally {
    // Shut down the event loop to terminate all threads.
    group.shutdownGracefully();
  }
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Override
public void initChannel(SocketChannel ch) {
    ChannelPipeline pipeline = ch.pipeline();
    SslHandler sslHandler = null;
    if (sslHandlerProvider != null) {
        sslHandler = sslHandlerProvider.getSslHandler();
        pipeline.addLast(sslHandler);
    }
    pipeline.addLast("decoder", new MqttDecoder(MAX_PAYLOAD_SIZE));
    pipeline.addLast("encoder", MqttEncoder.INSTANCE);

    MqttTransportHandler handler = new MqttTransportHandler(processor, deviceService, authService, relationService, adaptor, sslHandler);
    pipeline.addLast(handler);
    ch.closeFuture().addListener(handler);
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Test
public void noConnectMessage(TestContext context) throws Exception {

    EventLoopGroup group = new NioEventLoopGroup();
    try {

        Bootstrap bootstrap = new Bootstrap();
        bootstrap
                .group(group)
                .channel(NioSocketChannel.class)
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {

                        ChannelPipeline pipeline = ch.pipeline();
                        pipeline.addLast("mqttEncoder", MqttEncoder.INSTANCE);
                    }
                });

        // Start the client.
        ChannelFuture f = bootstrap.connect(MQTT_BIND_ADDRESS, MQTT_LISTEN_PORT).sync();

        f.channel().writeAndFlush(createPublishMessage());

        // Wait until the connection is closed.
        f.channel().closeFuture().sync();

        context.assertTrue(true);

    } finally {
        // Shut down the event loop to terminate all threads.
        group.shutdownGracefully();
    }
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Override
protected void customizePipeline(EventExecutorGroup eventExecutorGroup, ChannelPipeline pipeline) {
    pipeline.addLast("decoder", new MqttDecoder());
    pipeline.addLast("encoder", new MqttEncoder());

    // we finally have the chance to add some business logic.
    pipeline.addLast(eventExecutorGroup, "iotracah-mqtt", new MqttServerHandler((MqttServerImpl) getServerImpl()));
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
@Override
public void addChannelHandlers(ChannelPipeline pipeline) {
   pipeline.addLast(MqttEncoder.INSTANCE);
   pipeline.addLast(new MqttDecoder(MQTTUtil.MAX_MESSAGE_SIZE));

   pipeline.addLast(new MQTTProtocolHandler(server, this));
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
void init() {
        String host = "0.0.0.0";
        int port = 1883;
        m_bossGroup = new NioEventLoopGroup();
        m_workerGroup = new NioEventLoopGroup();

        ServerBootstrap b = new ServerBootstrap();
        b.group(m_bossGroup, m_workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline pipeline = ch.pipeline();
                        try {
                            pipeline.addLast("decoder", new MqttDecoder());
                            pipeline.addLast("encoder", MqttEncoder.INSTANCE);
                            pipeline.addLast("handler", new PublishReceiverHandler());
//                            pipeline.addLast("decoder", new MqttDecoder());
//                            pipeline.addLast("encoder", MqttEncoder.INSTANCE);
//                            pipeline.addLast("handler", new NettyPublishReceiverHandler());
                        } catch (Throwable th) {
                            LOG.error("Severe error during pipeline creation", th);
                            throw th;
                        }
                    }
                })
                .option(ChannelOption.SO_BACKLOG, 128)
                .option(ChannelOption.SO_REUSEADDR, true)
                .option(ChannelOption.TCP_NODELAY, true)
                .childOption(ChannelOption.SO_KEEPALIVE, true);
        try {
            // Bind and start to accept incoming connections.
            ChannelFuture f = b.bind(host, port);
            LOG.info("Server binded host: {}, port: {}", host, port);
            f.sync();
        } catch (InterruptedException ex) {
            LOG.error(null, ex);
        }
    }
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
void init() {
    String host = "0.0.0.0";
    int port = 1883;
    m_bossGroup = new NioEventLoopGroup();
    m_workerGroup = new NioEventLoopGroup();

    ServerBootstrap b = new ServerBootstrap();
    b.group(m_bossGroup, m_workerGroup)
            .channel(NioServerSocketChannel.class)
            .childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel ch) throws Exception {
                    ChannelPipeline pipeline = ch.pipeline();
                    try {
                        pipeline.addFirst("idleStateHandler", new IdleStateHandler(2, 0, 0));
                        pipeline.addAfter("idleStateHandler", "idleEventHandler", new MoquetteIdleTimeoutHandler());
                        pipeline.addLast("decoder", new MqttDecoder());
                        pipeline.addLast("encoder", MqttEncoder.INSTANCE);
                        pipeline.addLast("handler", new LoopMQTTHandler(state));
                    } catch (Throwable th) {
                        LOG.error("Severe error during pipeline creation", th);
                        throw th;
                    }
                }
            })
            .option(ChannelOption.SO_BACKLOG, 128)
            .option(ChannelOption.SO_REUSEADDR, true)
            .option(ChannelOption.TCP_NODELAY, true)
            .childOption(ChannelOption.SO_KEEPALIVE, true);
    try {
        // Bind and start to accept incoming connections.
        ChannelFuture f = b.bind(host, port);
        LOG.info("Server binded host: {}, port: {}", host, port);
        f.sync();
    } catch (InterruptedException ex) {
        LOG.error(null, ex);
    }
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
private void initializePlainTCPTransport(final NettyMQTTHandler handler,
                                         IConfig props) throws IOException {
    LOG.info("Configuring TCP MQTT transport");
    final MoquetteIdleTimeoutHandler timeoutHandler = new MoquetteIdleTimeoutHandler();
    String host = props.getProperty(BrokerConstants.HOST_PROPERTY_NAME);
    String tcpPortProp = props.getProperty(PORT_PROPERTY_NAME, DISABLED_PORT_BIND);
    if (DISABLED_PORT_BIND.equals(tcpPortProp)) {
        LOG.info("Property {} has been set to {}. TCP MQTT will be disabled", BrokerConstants.PORT_PROPERTY_NAME,
            DISABLED_PORT_BIND);
        return;
    }
    int port = Integer.parseInt(tcpPortProp);
    initFactory(host, port, "TCP MQTT", new PipelineInitializer() {

        @Override
        void init(ChannelPipeline pipeline) {
            pipeline.addFirst("idleStateHandler", new IdleStateHandler(nettyChannelTimeoutSeconds, 0, 0));
            pipeline.addAfter("idleStateHandler", "idleEventHandler", timeoutHandler);
            // pipeline.addLast("logger", new LoggingHandler("Netty", LogLevel.ERROR));
            if (errorsCather.isPresent()) {
                pipeline.addLast("bugsnagCatcher", errorsCather.get());
            }
            pipeline.addFirst("bytemetrics", new BytesMetricsHandler(m_bytesMetricsCollector));
            pipeline.addLast("decoder", new MqttDecoder());
            pipeline.addLast("encoder", MqttEncoder.INSTANCE);
            pipeline.addLast("metrics", new MessageMetricsHandler(m_metricsCollector));
            pipeline.addLast("messageLogger", new MQTTMessageLogger());
            if (metrics.isPresent()) {
                pipeline.addLast("wizardMetrics", metrics.get());
            }
            pipeline.addLast("handler", handler);
        }
    });
}
 

import io.netty.handler.codec.mqtt.MqttEncoder; //导入依赖的package包/类
private void initializeWebSocketTransport(final NettyMQTTHandler handler, IConfig props) throws IOException {
    LOG.info("Configuring Websocket MQTT transport");
    String webSocketPortProp = props.getProperty(WEB_SOCKET_PORT_PROPERTY_NAME, DISABLED_PORT_BIND);
    if (DISABLED_PORT_BIND.equals(webSocketPortProp)) {
        // Do nothing no WebSocket configured
        LOG.info("Property {} has been setted to {}. Websocket MQTT will be disabled",
            BrokerConstants.WEB_SOCKET_PORT_PROPERTY_NAME, DISABLED_PORT_BIND);
        return;
    }
    int port = Integer.parseInt(webSocketPortProp);

    final MoquetteIdleTimeoutHandler timeoutHandler = new MoquetteIdleTimeoutHandler();

    String host = props.getProperty(BrokerConstants.HOST_PROPERTY_NAME);
    initFactory(host, port, "Websocket MQTT", new PipelineInitializer() {

        @Override
        void init(ChannelPipeline pipeline) {
            pipeline.addLast(new HttpServerCodec());
            pipeline.addLast("aggregator", new HttpObjectAggregator(65536));
            pipeline.addLast("webSocketHandler",
                    new WebSocketServerProtocolHandler("/mqtt", MQTT_SUBPROTOCOL_CSV_LIST));
            pipeline.addLast("ws2bytebufDecoder", new WebSocketFrameToByteBufDecoder());
            pipeline.addLast("bytebuf2wsEncoder", new ByteBufToWebSocketFrameEncoder());
            pipeline.addFirst("idleStateHandler", new IdleStateHandler(nettyChannelTimeoutSeconds, 0, 0));
            pipeline.addAfter("idleStateHandler", "idleEventHandler", timeoutHandler);
            pipeline.addFirst("bytemetrics", new BytesMetricsHandler(m_bytesMetricsCollector));
            pipeline.addLast("decoder", new MqttDecoder());
            pipeline.addLast("encoder", MqttEncoder.INSTANCE);
            pipeline.addLast("metrics", new MessageMetricsHandler(m_metricsCollector));
            pipeline.addLast("messageLogger", new MQTTMessageLogger());
            pipeline.addLast("handler", handler);
        }
    });
}