Example usage for io.netty.channel ChannelFuture sync

Introduction

In this page you can find the example usage for io.netty.channel ChannelFuture sync.

Prototype

@Override
    ChannelFuture sync() throws InterruptedException;

Source Link

Usage

From source file:com.google.devtools.build.lib.remote.blobstore.http.HttpBlobStore.java

License:Open Source License

@SuppressWarnings("FutureReturnValueIgnored")
private boolean getAfterCredentialRefresh(DownloadCommand cmd) throws InterruptedException {
    Channel ch = null;//  ww  w .  ja  v  a  2s . c  o  m
    try {
        ch = acquireDownloadChannel();
        ChannelFuture downloadFuture = ch.writeAndFlush(cmd);
        downloadFuture.sync();
        return true;
    } catch (Exception e) {
        if (e instanceof HttpException) {
            HttpResponse response = ((HttpException) e).response();
            if (cacheMiss(response.status())) {
                return false;
            }
        }
        throw e;
    } finally {
        if (ch != null) {
            downloadChannels.release(ch);
        }
    }
}

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From source file:com.google.devtools.build.lib.remote.blobstore.http.HttpBlobStore.java

License:Open Source License

@SuppressWarnings("FutureReturnValueIgnored")
private void put(String key, long length, InputStream in, boolean casUpload)
        throws IOException, InterruptedException {
    InputStream wrappedIn = new FilterInputStream(in) {
        @Override//from  w w  w. ja va 2  s  .c om
        public void close() {
            // Ensure that the InputStream can't be closed somewhere in the Netty
            // pipeline, so that we can support retries. The InputStream is closed in
            // the finally block below.
        }
    };
    UploadCommand upload = new UploadCommand(uri, casUpload, key, wrappedIn, length);
    Channel ch = null;
    try {
        ch = acquireUploadChannel();
        ChannelFuture uploadFuture = ch.writeAndFlush(upload);
        uploadFuture.sync();
    } catch (Exception e) {
        // e can be of type HttpException, because Netty uses Unsafe.throwException to re-throw a
        // checked exception that hasn't been declared in the method signature.
        if (e instanceof HttpException) {
            HttpResponse response = ((HttpException) e).response();
            if (authTokenExpired(response)) {
                refreshCredentials();
                // The error is due to an auth token having expired. Let's try again.
                if (!reset(in)) {
                    // The InputStream can't be reset and thus we can't retry as most likely
                    // bytes have already been read from the InputStream.
                    throw e;
                }
                putAfterCredentialRefresh(upload);
                return;
            }
        }
        throw e;
    } finally {
        in.close();
        if (ch != null) {
            uploadChannels.release(ch);
        }
    }
}

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From source file:com.google.devtools.build.lib.remote.blobstore.http.HttpBlobStore.java

License:Open Source License

@SuppressWarnings("FutureReturnValueIgnored")
private void putAfterCredentialRefresh(UploadCommand cmd) throws InterruptedException {
    Channel ch = null;/*from  w w  w .j a v  a2s . co  m*/
    try {
        ch = acquireUploadChannel();
        ChannelFuture uploadFuture = ch.writeAndFlush(cmd);
        uploadFuture.sync();
    } finally {
        if (ch != null) {
            uploadChannels.release(ch);
        }
    }
}

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From source file:com.gw.monitor.alphaenvmonitor.monitor.MonitorClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {/*from w w  w  . ja v  a  2  s.c o m*/
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new MonitorClientInitializer());

        // Start the connection attempt.
        Channel ch = b.connect(host, port).sync().channel();

        // 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 = ch.writeAndFlush(line + "\r\n");

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

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

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From source file:com.hazelcast.openshift.TunnelClientAcceptor.java

License:Open Source License

private Channel createRemoteChannel(Channel socket) throws Exception {
    Bootstrap bootstrap = createBootstrap(socket);
    ChannelFuture connectFuture = bootstrap.connect(forwardHost, forwardPort);
    ChannelFuture future = connectFuture.sync();
    if (!future.isSuccess()) {
        return null;
    }//from   www . j a va  2s.  c o  m

    return future.channel();
}

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From source file:com.hazelcast.openshift.TunnelServerConnector.java

License:Open Source License

@Override
public void channelRegistered(ChannelHandlerContext ctx) throws Exception {
    Promise promise = new Promise();
    Bootstrap bootstrap = createBootstrap(ctx.channel(), promise);
    ChannelFuture future = bootstrap.connect(httpHost, httpPort);
    Channel forward = future.sync().channel();
    forward.closeFuture().addListener(f -> ctx.close());
    ctx.channel().closeFuture().addListener(f -> forward.close());

    HttpRequest request = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.CONNECT, "/");
    request.headers().set(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE);
    forward.writeAndFlush(request);// w w w. j a v  a  2 s . c  o m

    // Wait for the initial http response (ssl established)
    promise.sync(10, TimeUnit.SECONDS);

    // Exchange the HazelcastClient -> TunnelClient handler to proxy
    ChannelPipeline pipeline = ctx.pipeline();
    pipeline.addLast(new ProxyForwardHandler(forward));
    pipeline.remove(this);

    ctx.fireChannelRegistered();
}

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From source file:com.hipishare.chat.SecureChatClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE)
            .build();/*from   w w  w.j  a va2 s  .c om*/

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        bootstrap = new Bootstrap();
        bootstrap.group(group).channel(NioSocketChannel.class).handler(new SecureChatClientInitializer(sslCtx));

        // Start the connection attempt.
        ChannelFuture channelFuture = bootstrap.connect(HOST, PORT).sync();
        channel = channelFuture.channel();
        //         channel.closeFuture().sync();

        // add reconnect listener
        reConnectListener = new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    channel.close();
                    channel = future.channel();
                    LOG.info("???");
                } else {
                    LOG.info("??");
                    // 3??
                    future.channel().eventLoop().schedule(new Runnable() {
                        @Override
                        public void run() {
                            reConnect();
                        }
                    }, 3, TimeUnit.SECONDS);
                }
            }
        };

        // 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.
            LOG.info("isActive=" + channel.isActive());
            LOG.info("isOpen=" + channel.isOpen());
            LOG.info("isWritable=" + channel.isWritable());
            if (!channel.isOpen()) {
                reConnect();
            }
            lastWriteFuture = channel.writeAndFlush("[channelId=" + channel.id() + "]" + line + "\r\n");

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

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
    } finally {
        // The connection is closed automatically on shutdown.
        group.shutdownGracefully();
    }
}

---

From source file:com.hipishare.chat.securetest.SecureChatClient.java

License:Apache License

public static void main(String[] args) throws Exception {
    // Configure SSL.
    final SslContext sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE)
            .build();//from  w w w  .ja  v  a2  s.c o m

    EventLoopGroup group = new NioEventLoopGroup();
    try {
        bootstrap = new Bootstrap();
        bootstrap.group(group).channel(NioSocketChannel.class).handler(new SecureChatClientInitializer(sslCtx));

        // Start the connection attempt.
        ChannelFuture channelFuture = bootstrap.connect(HOST, PORT).sync();
        channel = channelFuture.channel();

        // add reconnect listener
        reConnectListener = new ChannelFutureListener() {
            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    channel.close();
                    channel = future.channel();
                    LOG.info("???");
                } else {
                    LOG.info("??");
                    // 3??
                    future.channel().eventLoop().schedule(new Runnable() {
                        @Override
                        public void run() {
                            reConnect();
                        }
                    }, 3, TimeUnit.SECONDS);
                }
            }
        };

        // 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.
            if (!channel.isOpen()) {
                reConnect();
            }
            MsgObject msgObj = new MsgObject();
            Gson gson = new Gson();
            if ("1".equals(line)) {
                User user = new User();
                user.setAccount("peter");
                user.setPwd("666666");
                msgObj.setC(CmdEnum.LOGIN.getCmd());
                msgObj.setM(gson.toJson(user));
            } else if ("2".equals(line)) {
                ChatObject co = new ChatObject();
                co.setContent("hello,jack. I am peter.");
                co.setMsgType("text");
                co.setMsgTo("jack");
                co.setMsgFrom("peter");
                co.setCreateTime(System.currentTimeMillis());
                msgObj.setC(CmdEnum.CHAT.getCmd());
                msgObj.setM(gson.toJson(co));
            } else if ("3".equals(line)) {
                RegisterCode rc = new RegisterCode();
                rc.setMobile("13410969042");
                rc.setSign("fdsafsadf");
                msgObj.setC(CmdEnum.REGISTER_CODE.getCmd());
                msgObj.setM(gson.toJson(rc));
            } else if ("4".equals(line)) {
                RegisterCode rc = new RegisterCode();
                rc.setMobile("13410969042");
                rc.setCode("3243");
                rc.setSign("fdsafsadf");
                msgObj.setC(CmdEnum.REGISTER.getCmd());
                msgObj.setM(gson.toJson(rc));
            }
            String msg = gson.toJson(msgObj);
            ByteBuf buf = Unpooled.copiedBuffer(msg.getBytes());
            lastWriteFuture = channel.writeAndFlush(buf);

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

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
        channel.closeFuture().sync();
    } finally {
        // The connection is closed automatically on shutdown.
        group.shutdownGracefully();
    }
}

---

From source file:com.hxr.javatone.concurrency.netty.official.securechat.SecureChatClient.java

License:Apache License

public void run() throws Exception {
    EventLoopGroup group = new NioEventLoopGroup();
    try {//ww  w  .  j ava  2s  . c o m
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new SecureChatClientInitializer());

        // Start the connection attempt.
        Channel ch = b.connect(host, port).sync().channel();

        // 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 = ch.writeAndFlush(line + "\r\n");

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

        // Wait until all messages are flushed before closing the channel.
        if (lastWriteFuture != null) {
            lastWriteFuture.sync();
        }
    } finally {
        // The connection is closed automatically on shutdown.
        group.shutdownGracefully();
    }
}

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From source file:com.lambdaworks.redis.protocol.ReconnectionHandler.java

License:Apache License

protected boolean reconnect(InternalLogLevel infoLevel) throws Exception {

    SocketAddress remoteAddress = socketAddressSupplier.get();

    try {/* w w  w  .j  ava  2 s . com*/
        long timeLeft = timeoutUnit.toNanos(timeout);
        long start = System.nanoTime();

        logger.debug("Reconnecting to Redis at {}", remoteAddress);
        ChannelFuture currentFuture = this.currentFuture = bootstrap.connect(remoteAddress);
        if (!currentFuture.await(timeLeft, TimeUnit.NANOSECONDS)) {
            if (currentFuture.isCancellable()) {
                currentFuture.cancel(true);
            }

            throw new TimeoutException(
                    "Reconnection attempt exceeded timeout of " + timeout + " " + timeoutUnit);
        }

        currentFuture.sync();

        Channel channel = currentFuture.channel();

        RedisChannelInitializer channelInitializer = channel.pipeline().get(RedisChannelInitializer.class);
        CommandHandler<?, ?> commandHandler = channel.pipeline().get(CommandHandler.class);

        if (channelInitializer == null) {
            logger.warn("Reconnection attempt without a RedisChannelInitializer in the channel pipeline");
            close(channel);
            return false;
        }

        if (commandHandler == null) {
            logger.warn("Reconnection attempt without a CommandHandler in the channel pipeline");
            close(channel);
            return false;
        }

        try {
            timeLeft -= System.nanoTime() - start;
            channelInitializer.channelInitialized().get(Math.max(0, timeLeft), TimeUnit.NANOSECONDS);
            if (logger.isDebugEnabled()) {
                logger.log(infoLevel, "Reconnected to {}, Channel {}", remoteAddress,
                        ChannelLogDescriptor.logDescriptor(channel));
            } else {
                logger.log(infoLevel, "Reconnected to {}", remoteAddress);
            }
            return true;
        } catch (TimeoutException e) {
            channelInitializer.channelInitialized().cancel(true);
        } catch (Exception e) {
            if (clientOptions.isCancelCommandsOnReconnectFailure()) {
                commandHandler.reset();
            }

            if (clientOptions.isSuspendReconnectOnProtocolFailure()) {
                logger.error("Cannot initialize channel. Disabling autoReconnect", e);
                setReconnectSuspended(true);
            } else {
                logger.error("Cannot initialize channel.", e);
                throw e;
            }
        }
    } finally {
        this.currentFuture = null;
    }

    return false;
}

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