Java Code Examples for org.jboss.netty.bootstrap.ClientBootstrap#releaseExternalResources()

public void run() {
  // Configure the client.
  ChannelFactory factory = new NioClientSocketChannelFactory(
      Executors.newCachedThreadPool(), Executors.newCachedThreadPool(), 1, 1);
  ClientBootstrap bootstrap = new ClientBootstrap(factory);

  // Set up the pipeline factory.
  bootstrap.setPipelineFactory(setPipelineFactory());

  bootstrap.setOption("tcpNoDelay", true);
  bootstrap.setOption("keepAlive", true);

  // Start the connection attempt.
  ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));

  if (oneShot) {
    // Wait until the connection is closed or the connection attempt fails.
    future.getChannel().getCloseFuture().awaitUninterruptibly();

    // Shut down thread pools to exit.
    bootstrap.releaseExternalResources();
  }
}
 

public void run() {
  // Configure the client.
  ChannelFactory factory = new NioClientSocketChannelFactory(
      Executors.newCachedThreadPool(), Executors.newCachedThreadPool(), 1, 1);
  ClientBootstrap bootstrap = new ClientBootstrap(factory);

  // Set up the pipeline factory.
  bootstrap.setPipelineFactory(setPipelineFactory());

  bootstrap.setOption("tcpNoDelay", true);
  bootstrap.setOption("keepAlive", true);

  // Start the connection attempt.
  ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));

  if (oneShot) {
    // Wait until the connection is closed or the connection attempt fails.
    future.getChannel().getCloseFuture().awaitUninterruptibly();

    // Shut down thread pools to exit.
    bootstrap.releaseExternalResources();
  }
}
 

private static void uploadFile(ClientBootstrap bootstrap, String host,
		int port, File file, String fileName, String thumbMark,
		String userName, String pwd) {
	//1.构建uri对象
	URI uri = getUri(host, port);
	//2.连接netty服务端
	ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,
			port));
	//3.异步获取Channel对象
	Channel channel = future.awaitUninterruptibly().getChannel();
	if (!future.isSuccess()) {
		future.getCause().printStackTrace();
		bootstrap.releaseExternalResources();
		return;
	}
	//4.初始化文件上传句柄对象
	WrapFileClientHandler handler = new UploadFileClientHandler(host, uri,
			file, fileName, thumbMark, userName, pwd);
	//5.获取Request对象
	HttpRequest request = handler.getRequest();
	//6.获取Http数据处理工厂
	HttpDataFactory factory = getHttpDataFactory();
	//7.进行数据的包装处理，主要是进行上传文件所需要的参数的设置，此时调用的句柄是具体的UploadFileClientHandler对象
	HttpPostRequestEncoder bodyRequestEncoder = handler
			.wrapRequestData(factory);
	//8.把request写到管道中，传输给服务端
	channel.write(request);
	//9.做一些关闭资源的动作
	if (bodyRequestEncoder.isChunked()) {
		channel.write(bodyRequestEncoder).awaitUninterruptibly();
	}
	bodyRequestEncoder.cleanFiles();
	channel.getCloseFuture().awaitUninterruptibly();

	bootstrap.releaseExternalResources();
	factory.cleanAllHttpDatas();
}
 

private static void deleteFile(ClientBootstrap bootstrap, String host,
		int port, String filePath, String userName, String pwd) {
	URI uri = getUri(host, port);
	ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,
			port));
	Channel channel = future.awaitUninterruptibly().getChannel();
	if (!future.isSuccess()) {
		future.getCause().printStackTrace();
		bootstrap.releaseExternalResources();
		return;
	}

	WrapFileClientHandler handler = new DeleteFileClientHandler(host, uri,
			filePath, userName, pwd);
	HttpRequest request = handler.getRequest();
	HttpDataFactory factory = getHttpDataFactory();
	HttpPostRequestEncoder bodyRequestEncoder = handler
			.wrapRequestData(factory);
	channel.write(request);
	if (bodyRequestEncoder.isChunked()) {
		channel.write(bodyRequestEncoder).awaitUninterruptibly();
	}
	bodyRequestEncoder.cleanFiles();
	channel.getCloseFuture().awaitUninterruptibly();
	bootstrap.releaseExternalResources();
	factory.cleanAllHttpDatas();
}
 

private static void replaceFile(ClientBootstrap bootstrap, String host,
		int port, File file, String filePath, String userName, String pwd) {
	URI uri = getUri(host, port);
	ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,
			port));
	Channel channel = future.awaitUninterruptibly().getChannel();
	if (!future.isSuccess()) {
		future.getCause().printStackTrace();
		bootstrap.releaseExternalResources();
		return;
	}

	WrapFileClientHandler handler = new ReplaceFileClientHandler(host, uri,
			filePath, file, userName, pwd);
	HttpRequest request = handler.getRequest();
	HttpDataFactory factory = getHttpDataFactory();
	HttpPostRequestEncoder bodyRequestEncoder = handler
			.wrapRequestData(factory);
	channel.write(request);
	if (bodyRequestEncoder.isChunked()) {
		channel.write(bodyRequestEncoder).awaitUninterruptibly();
	}
	bodyRequestEncoder.cleanFiles();
	channel.getCloseFuture().awaitUninterruptibly();
	bootstrap.releaseExternalResources();
	factory.cleanAllHttpDatas();
}
 

private static void createThumbPicture(ClientBootstrap bootstrap,
		String host, int port, String filePath, String userName, String pwd) {
	URI uri = getUri(host, port);
	ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,
			port));
	Channel channel = future.awaitUninterruptibly().getChannel();
	if (!future.isSuccess()) {
		future.getCause().printStackTrace();
		bootstrap.releaseExternalResources();
		return;
	}

	WrapFileClientHandler handler = new CreateThumbPictureClientHandler(
			host, uri, userName, pwd, filePath);
	HttpRequest request = handler.getRequest();
	HttpDataFactory factory = getHttpDataFactory();
	HttpPostRequestEncoder bodyRequestEncoder = handler
			.wrapRequestData(factory);
	channel.write(request);
	if (bodyRequestEncoder.isChunked()) {
		channel.write(bodyRequestEncoder).awaitUninterruptibly();
	}
	bodyRequestEncoder.cleanFiles();
	channel.getCloseFuture().awaitUninterruptibly();
	bootstrap.releaseExternalResources();
	factory.cleanAllHttpDatas();
}
 

public void connect(){

		bootstrap = new ClientBootstrap( new NioClientSocketChannelFactory(
				Executors.newCachedThreadPool(),
				Executors.newCachedThreadPool()));
		bootstrap.setOption("tcpNoDelay", false);
		bootstrap.setOption("keepAlive", true);

		final NettyClientHandler handler = new NettyClientHandler(this, timer);
		
		bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
			
			public ChannelPipeline getPipeline() throws Exception {
				ChannelPipeline pipeline =  Channels.pipeline();
				pipeline.addLast("handler", handler);
				pipeline.addLast("encoder", new StringEncoder());
				return pipeline;
			}
		});
		
		bootstrap.setOption("remoteAddress", new InetSocketAddress(host, port));
		try {
			ChannelFuture future = bootstrap.connect().sync();
			channel = future.getChannel();
		} catch (Exception e) {
			logger.error(ExceptionUtil.getErrorMessage(e));
			bootstrap.releaseExternalResources();
			System.exit(-1);//第一次连接出现异常直接退出,不走重连
		}
	}
 

public void request() throws Exception {
    
    // Parse options.
    String host = "localhost";
    int port = 10081;
    int connectTimeoutMillis = 2000;
    // Configure the client.
    ClientBootstrap bootstrap = new ClientBootstrap(
            new NioClientSocketChannelFactory(
                    Executors.newCachedThreadPool(),
                    Executors.newCachedThreadPool()));

    final TelnetClientHandler handler = new TelnetClientHandler();

    // Configure the pipeline factory.
    bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
        public ChannelPipeline getPipeline() {
            ChannelPipeline pipeline = Channels.pipeline();
            pipeline.addLast("framer", new DelimiterBasedFrameDecoder(1024,
                    Delimiters.lineDelimiter()));
            pipeline.addLast("stringDecoder", stringDecoder);
            pipeline.addLast("stringEncoder", stringEncoder);
            pipeline.addLast("handler", handler);
            return pipeline;
        }
    });
    
    
    bootstrap.setOption("connectTimeoutMillis",connectTimeoutMillis);
    bootstrap.setOption("tcpNoDelay", true);
    bootstrap.setOption("keepAlive", true);
    // Start the connection attempt.
    ChannelFuture future = bootstrap.connect(new InetSocketAddress(host,
            port));

    // Wait until the connection attempt succeeds or fails.
    Channel channel = future.awaitUninterruptibly().getChannel();
    // Read commands from the stdin.
    ChannelFuture lastWriteFuture = null;
    String command = "hadoopMonitorFromClient";

    // Sends the line to server.
    lastWriteFuture = channel.write(command + "\r\n");

    // Wait until all messages are flushed before closing the channel.
    if (lastWriteFuture != null) {
        lastWriteFuture.await();
    }

    // note that we need to wait for the response before

    // wait time before close the channel too early that msg will not be
    // received.

    while (!handler.channelCompleted) {
        Thread.sleep(1l);
    }

    // Close the connection. Make sure the close operation ends because
    // all I/O operations are asynchronous in Netty.
    channel.close().awaitUninterruptibly();
    // Shut down all thread pools to exit.
    bootstrap.releaseExternalResources();
    
}