Package io.netty.bootstrap

Examples of io.netty.bootstrap.ClientBootstrap

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        }

        boolean ssl = scheme.equalsIgnoreCase("https");

        // Configure the client.
        ClientBootstrap bootstrap = new ClientBootstrap(
                new NioClientSocketChannelFactory(
                        Executors.newCachedThreadPool(),
                        Executors.newCachedThreadPool()));

        // Set up the event pipeline factory.
        bootstrap.setPipelineFactory(new HttpSnoopClientPipelineFactory(ssl));

        // 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();
        if (!future.isSuccess()) {
            future.getCause().printStackTrace();
            bootstrap.releaseExternalResources();
            return;
        }

        // Prepare the HTTP request.
        HttpRequest request = new DefaultHttpRequest(
                HttpVersion.HTTP_1_1, HttpMethod.GET, uri.getRawPath());
        request.setHeader(HttpHeaders.Names.HOST, host);
        request.setHeader(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
        request.setHeader(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);

        // Set some example cookies.
        CookieEncoder httpCookieEncoder = new CookieEncoder(false);
        httpCookieEncoder.addCookie("my-cookie", "foo");
        httpCookieEncoder.addCookie("another-cookie", "bar");
        request.setHeader(HttpHeaders.Names.COOKIE, httpCookieEncoder.encode());

        // Send the HTTP request.
        channel.write(request);

        // Wait for the server to close the connection.
        channel.getCloseFuture().awaitUninterruptibly();

        // Shut down executor threads to exit.
        bootstrap.releaseExternalResources();
    }
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    public WebSocketClient(URI uri) {
        this.uri = uri;
    }
   
    public void run() throws Exception {
        ClientBootstrap bootstrap =
                new ClientBootstrap(
                        new NioClientSocketChannelFactory(
                                Executors.newCachedThreadPool(),
                                Executors.newCachedThreadPool()));

        Channel ch = null;
       
        try {
            String protocol = uri.getScheme();
            if (!protocol.equals("ws")) {
                throw new IllegalArgumentException("Unsupported protocol: " + protocol);
            }
   
            HashMap<String, String> customHeaders = new HashMap<String, String>();
            customHeaders.put("MyHeader", "MyValue");
   
            // Connect with V13 (RFC 6455). You can change it to V08 or V00.
            // If you change it to V00, ping is not supported and remember to change
            // HttpResponseDecoder to WebSocketHttpResponseDecoder in the pipeline.
            final WebSocketClientHandshaker handshaker =
                    new WebSocketClientHandshakerFactory().newHandshaker(
                            uri, WebSocketVersion.V13, null, false, customHeaders);
           
            bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
                public ChannelPipeline getPipeline() throws Exception {
                    ChannelPipeline pipeline = Channels.pipeline();
   
                    // If you wish to support HyBi V00, you need to use
                    // WebSocketHttpResponseDecoder instead for
                    // HttpResponseDecoder.
                    pipeline.addLast("decoder", new HttpResponseDecoder());
   
                    pipeline.addLast("encoder", new HttpRequestEncoder());
                    pipeline.addLast("ws-handler", new WebSocketClientHandler(handshaker));
                    return pipeline;
                }
            });
   
            // Connect
            System.out.println("WebSocket Client connecting");
            ChannelFuture future =
                    bootstrap.connect(
                            new InetSocketAddress(uri.getHost(), uri.getPort()));
            future.awaitUninterruptibly().rethrowIfFailed();
   
            ch = future.getChannel();
            handshaker.handshake(ch).awaitUninterruptibly().rethrowIfFailed();
           
            // Send 10 messages and wait for responses
            System.out.println("WebSocket Client sending message");
            for (int i = 0; i < 10; i++) {
                ch.write(new TextWebSocketFrame("Message #" + i));
            }
   
            // Ping
            System.out.println("WebSocket Client sending ping");
            ch.write(new PingWebSocketFrame(ChannelBuffers.copiedBuffer(new byte[]{1, 2, 3, 4, 5, 6})));
   
            // Close
            System.out.println("WebSocket Client sending close");
            ch.write(new CloseWebSocketFrame());
   
            // WebSocketClientHandler will close the connection when the server
            // responds to the CloseWebSocketFrame.
            ch.getCloseFuture().awaitUninterruptibly();
        } finally {
            if (ch != null) {
                ch.close();
            }
            bootstrap.releaseExternalResources();
        }
    }
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        this.port = port;
    }

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

        // Configure the pipeline factory.
        bootstrap.setPipelineFactory(new SecureChatClientPipelineFactory());

        // 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();
        if (!future.isSuccess()) {
            future.getCause().printStackTrace();
            bootstrap.releaseExternalResources();
            return;
        }

        // Read commands from the stdin.
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (;;) {
            String line = in.readLine();
            if (line == null) {
                break;
            }

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

            // If user typed the 'bye' command, wait until the server closes
            // the connection.
            if (line.toLowerCase().equals("bye")) {
                channel.getCloseFuture().awaitUninterruptibly();
                break;
            }
        }

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

        // 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();
    }
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        this.count = count;
    }

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

        // Set up the event pipeline factory.
        bootstrap.setPipelineFactory(new FactorialClientPipelineFactory(count));

        // Make a new connection.
        ChannelFuture connectFuture =
            bootstrap.connect(new InetSocketAddress(host, port));

        // Wait until the connection is made successfully.
        Channel channel = connectFuture.awaitUninterruptibly().getChannel();

        // Get the handler instance to retrieve the answer.
        FactorialClientHandler handler =
            (FactorialClientHandler) channel.getPipeline().getLast();

        // Print out the answer.
        System.err.format(
                "Factorial of %,d is: %,d", count, handler.getFactorial());

        // Shut down all thread pools to exit.
        bootstrap.releaseExternalResources();
    }
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        this.firstMessageSize = firstMessageSize;
    }

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

        // Set up the pipeline factory.
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(
                        new EchoClientHandler(firstMessageSize));
            }
        });

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

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

        // Shut down thread pools to exit.
        bootstrap.releaseExternalResources();
    }
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        // Start up the server.
        sb.bind(socketAddress);

        // Configure the client.
        ClientBootstrap cb = new ClientBootstrap(
                new DefaultLocalClientChannelFactory());

        // Set up the client-side pipeline factory.
        cb.setPipelineFactory(new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(
                        new StringDecoder(),
                        new StringEncoder(),
                        new LoggingHandler(InternalLogLevel.INFO));
            }
        });

        // Make the connection attempt to the server.
        ChannelFuture channelFuture = cb.connect(socketAddress);
        channelFuture.awaitUninterruptibly();

        // Read commands from the stdin.
        System.out.println("Enter text (quit to end)");
        ChannelFuture lastWriteFuture = null;
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        for (; ;) {
            String line = in.readLine();
            if (line == null || "quit".equalsIgnoreCase(line)) {
                break;
            }

            // Sends the received line to the server.
            lastWriteFuture = channelFuture.getChannel().write(line);
        }

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

        // Wait until the connection is closed or the connection attempt fails.
        channelFuture.getChannel().getCloseFuture().awaitUninterruptibly();

        // Release all resources used by the local transport.
        cb.releaseExternalResources();
        sb.releaseExternalResources();
    }
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    public void run() {
        // Initialize the timer that schedules subsequent reconnection attempts.
        final Timer timer = new HashedWheelTimer();

        // Configure the client.
        final ClientBootstrap bootstrap = new ClientBootstrap(
                new NioClientSocketChannelFactory(
                        Executors.newCachedThreadPool(),
                        Executors.newCachedThreadPool()));

        // Configure the pipeline factory.
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {

            private final ChannelHandler timeoutHandler =
                new ReadTimeoutHandler(timer, READ_TIMEOUT);
            private final ChannelHandler uptimeHandler =
                new UptimeClientHandler(bootstrap, timer);

            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(
                        timeoutHandler, uptimeHandler);
            }
        });

        bootstrap.setOption(
                "remoteAddress", new InetSocketAddress(host, port));

        // Initiate the first connection attempt - the rest is handled by
        // UptimeClientHandler.
        bootstrap.connect();
    }
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        this.firstMessageSize = firstMessageSize;
    }

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

        // Set up the pipeline factory.
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(
                        new ObjectEncoder(),
                        new ObjectDecoder(),
                        new ObjectEchoClientHandler(firstMessageSize));
            }
        });

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

    public void run() {
        // Configure the client.
        ClientBootstrap bootstrap = new ClientBootstrap(
                new SctpClientSocketChannelFactory(
                        Executors.newCachedThreadPool(),
                        Executors.newCachedThreadPool()));

        final ExecutionHandler executionHandler = new ExecutionHandler(
                new OrderedMemoryAwareThreadPoolExecutor(16, 1048576, 1048576));

        // Set up the pipeline factory.
        bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
            @Override
            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(executionHandler, new SctpClientHandler());
            }
        });

        bootstrap.setOption("sendBufferSize", 1048576);
        bootstrap.setOption("receiveBufferSize", 1048576);

        bootstrap.setOption("sctpNoDelay", true);

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

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

        //  Please check SctpClientHandler to see, how echo message is sent & received

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

        sb.setPipelineFactory(new LocalServerPipelineFactory(eventExecutor));
        sb.bind(socketAddress);

        ClientBootstrap cb = new ClientBootstrap(
                new DefaultLocalClientChannelFactory());

        cb.setPipelineFactory(new ChannelPipelineFactory() {
            public ChannelPipeline getPipeline() throws Exception {
                return Channels.pipeline(
                        new StringDecoder(),
                        new StringEncoder(),
                        new LoggingHandler(InternalLogLevel.INFO));
            }
        });

        // Read commands from array
        String[] commands = { "First", "Second", "Third", "quit" };
        for (int j = 0; j < 5 ; j++) {
            System.err.println("Start " + j);
            ChannelFuture channelFuture = cb.connect(socketAddress);
            channelFuture.awaitUninterruptibly();
            if (! channelFuture.isSuccess()) {
                System.err.println("CANNOT CONNECT");
                channelFuture.getCause().printStackTrace();
                break;
            }
            ChannelFuture lastWriteFuture = null;
            for (String line: commands) {
                // Sends the received line to the server.
                lastWriteFuture = channelFuture.getChannel().write(line);
            }

            // Wait until all messages are flushed before closing the channel.
            if (lastWriteFuture != null) {
                lastWriteFuture.awaitUninterruptibly();
            }
            channelFuture.getChannel().close();
            // Wait until the connection is closed or the connection attempt fails.
            channelFuture.getChannel().getCloseFuture().awaitUninterruptibly();
            System.err.println("End " + j);
        }

        // Release all resources
        cb.releaseExternalResources();
        sb.releaseExternalResources();
        eventExecutor.shutdownNow();
    }
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Related Classes of io.netty.bootstrap.ClientBootstrap

  • io.netty.channel.Channel
  • io.netty.channel.ChannelPipeline
  • io.netty.example.discard.DiscardClient
  • io.netty.example.echo.EchoClient
  • io.netty.example.factorial.FactorialClient
  • io.netty.example.http.snoop.HttpSnoopClient
  • io.netty.example.http.upload.HttpUploadClient
  • io.netty.example.http.websocketx.client.WebSocketClient
  • io.netty.example.local.LocalExample
  • io.netty.example.local.LocalExampleMultithreaded
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