Example usage for io.netty.channel ChannelFuture cause

List of usage examples for io.netty.channel ChannelFuture cause

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Introduction

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

Prototype

Throwable cause();

Source Link

Document

Returns the cause of the failed I/O operation if the I/O operation has failed.

Usage

From source file:com.wolfbe.configcenter.remoting.netty.NettyRemotingClient.java

License:Apache License

private Channel createChannel(final String addr) throws InterruptedException {
    ChannelWrapper cw = this.channelTables.get(addr);
    if (cw != null && cw.isOK()) {
        return cw.getChannel();
    }//ww  w. jav a  2 s  . c  o  m

    if (this.lockChannelTables.tryLock(LockTimeoutMillis, TimeUnit.MILLISECONDS)) {
        try {
            boolean createNewConnection = false;
            cw = this.channelTables.get(addr);
            if (cw != null) {

                if (cw.isOK()) {
                    return cw.getChannel();
                }

                else if (!cw.getChannelFuture().isDone()) {
                    createNewConnection = false;
                }

                else {
                    this.channelTables.remove(addr);
                    createNewConnection = true;
                }
            }

            else {
                createNewConnection = true;
            }

            if (createNewConnection) {
                ChannelFuture channelFuture = this.bootstrap.connect(RemotingHelper.string2SocketAddress(addr));
                log.info("createChannel: begin to connect remote host[{}] asynchronously", addr);
                cw = new ChannelWrapper(channelFuture);
                this.channelTables.put(addr, cw);
            }
        } catch (Exception e) {
            log.error("createChannel: create channel exception", e);
        } finally {
            this.lockChannelTables.unlock();
        }
    } else {
        log.warn("createChannel: try to lock channel table, but timeout, {}ms", LockTimeoutMillis);
    }

    if (cw != null) {
        ChannelFuture channelFuture = cw.getChannelFuture();
        if (channelFuture.awaitUninterruptibly(this.nettyClientConfig.getConnectTimeoutMillis())) {
            if (cw.isOK()) {
                log.info("createChannel: connect remote host[{}] success, {}", addr, channelFuture.toString());
                return cw.getChannel();
            } else {
                log.warn("createChannel: connect remote host[" + addr + "] failed, " + channelFuture.toString(),
                        channelFuture.cause());
            }
        } else {
            log.warn("createChannel: connect remote host[{}] timeout {}ms, {}", addr,
                    this.nettyClientConfig.getConnectTimeoutMillis(), channelFuture.toString());
        }
    }

    return null;
}

From source file:com.wuma.file.uptime.UptimeClient.java

License:Apache License

static void connect(Bootstrap b) {
    b.connect().addListener(new ChannelFutureListener() {

        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.cause() != null) {
                handler.startTime = -1;/*from  ww  w.ja v  a 2 s  .c  om*/
                handler.println("Failed to connect: " + future.cause());
            }
        }
    });
}

From source file:com.yahoo.pulsar.client.impl.ConnectionPool.java

License:Apache License

private CompletableFuture<ClientCnx> createConnection(InetSocketAddress address, int connectionKey) {
    if (log.isDebugEnabled()) {
        log.debug("Connection for {} not found in cache", address);
    }//w  w w  .j  ava2  s  .co m

    final CompletableFuture<ClientCnx> cnxFuture = new CompletableFuture<ClientCnx>();

    // Trigger async connect to broker
    bootstrap.connect(address).addListener((ChannelFuture future) -> {
        if (!future.isSuccess()) {
            cnxFuture.completeExceptionally(new PulsarClientException(future.cause()));
            cleanupConnection(address, connectionKey, cnxFuture);
            return;
        }

        log.info("[{}] Connected to server", future.channel());

        future.channel().closeFuture().addListener(v -> {
            // Remove connection from pool when it gets closed
            cleanupConnection(address, connectionKey, cnxFuture);
        });

        // We are connected to broker, but need to wait until the connect/connected handshake is
        // complete
        final ClientCnx cnx = (ClientCnx) future.channel().pipeline().get("handler");
        cnx.connectionFuture().thenRun(() -> {
            if (log.isDebugEnabled()) {
                log.debug("[{}] Connection handshake completed", cnx.channel());
            }
            cnxFuture.complete(cnx);
        }).exceptionally(exception -> {
            log.warn("[{}] Connection handshake failed: {}", cnx.channel(), exception.getMessage());
            cnxFuture.completeExceptionally(exception);
            cleanupConnection(address, connectionKey, cnxFuture);
            cnx.ctx().close();
            return null;
        });

    });

    return cnxFuture;
}

From source file:com.yahoo.pulsar.discovery.service.DiscoveryServiceTest.java

License:Apache License

/**
 * creates ClientHandler channel to connect and communicate with server
 * /*from  w w w  . ja  v a 2  s.  co  m*/
 * @param serviceUrl
 * @param latch
 * @return
 * @throws URISyntaxException
 */
public static NioEventLoopGroup connectToService(String serviceUrl, CountDownLatch latch, boolean tls)
        throws URISyntaxException {
    NioEventLoopGroup workerGroup = new NioEventLoopGroup();
    Bootstrap b = new Bootstrap();
    b.group(workerGroup);
    b.channel(NioSocketChannel.class);

    b.handler(new ChannelInitializer<SocketChannel>() {
        @Override
        public void initChannel(SocketChannel ch) throws Exception {
            if (tls) {
                SslContextBuilder builder = SslContextBuilder.forClient();
                builder.trustManager(InsecureTrustManagerFactory.INSTANCE);
                X509Certificate[] certificates = SecurityUtility
                        .loadCertificatesFromPemFile(TLS_CLIENT_CERT_FILE_PATH);
                PrivateKey privateKey = SecurityUtility.loadPrivateKeyFromPemFile(TLS_CLIENT_KEY_FILE_PATH);
                builder.keyManager(privateKey, (X509Certificate[]) certificates);
                SslContext sslCtx = builder.build();
                ch.pipeline().addLast("tls", sslCtx.newHandler(ch.alloc()));
            }
            ch.pipeline().addLast(new ClientHandler(latch));
        }
    });
    URI uri = new URI(serviceUrl);
    InetSocketAddress serviceAddress = new InetSocketAddress(uri.getHost(), uri.getPort());
    b.connect(serviceAddress).addListener((ChannelFuture future) -> {
        if (!future.isSuccess()) {
            throw new IllegalStateException(future.cause());
        }
    });
    return workerGroup;
}

From source file:com.zaradai.distributor.messaging.netty.ChannelConnection.java

License:Apache License

@Override
protected void doSend(final Message message) throws MessagingException {
    channel.writeAndFlush(message).addListener(new ChannelFutureListener() {
        @Override//from  w w w  .j a  v  a  2  s  .  c o m
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                onSuccess(message);
            } else {
                onFailure(message, future.cause());
            }
        }
    });
}

From source file:com.zaradai.distributor.messaging.netty.NettyClient.java

License:Apache License

private void connect(final RetryPolicy retryPolicy) {
    ChannelFuture future = bootstrap.connect(endpoint);
    future.addListener(new ChannelFutureListener() {
        @Override/*from ww w .ja v  a 2  s  .  c  o m*/
        public void operationComplete(ChannelFuture channelFuture) throws Exception {
            final ChannelFuture fut = channelFuture;

            if (channelFuture.isSuccess()) {
                connected();
            } else {
                eventLoopGroups.getClientGroup().submit(new Runnable() {
                    @Override
                    public void run() {
                        if (retryPolicy.retry()) {
                            connect(retryPolicy);
                        } else {
                            failed(fut.cause());
                        }
                    }
                });
            }
        }
    });
}

From source file:com.zaradai.distributor.messaging.netty.NettyServer.java

License:Apache License

private void bindComplete(ChannelFuture channelFuture) {
    if (channelFuture.isSuccess()) {
        LOGGER.info("Listening on {}", channelFuture.channel().localAddress());
        serverChannelGroup.add(channelFuture.channel());
    } else {/* ww w. j ava  2 s  . co  m*/
        LOGGER.warn("Unable to listen", channelFuture.cause());
    }
}

From source file:com.zextras.modules.chat.server.EventSenderImpl.java

License:Open Source License

public void tryDelivery(String stanza) throws Throwable {
    Channel channel = getChannel();
    ChannelFuture channelFuture = channel
            .writeAndFlush(Unpooled.wrappedBuffer(stanza.getBytes(Charset.defaultCharset()))).sync();
    if (!channelFuture.isSuccess()) {
        throw channelFuture.cause();
    }/*from   www. j  a  v  a 2 s  .  c  om*/
}

From source file:com.zextras.modules.chat.server.EventSenderImpl.java

License:Open Source License

@Override
public void stop() throws InterruptedException {
    if (mChannel != null && mChannel.isOpen()) {
        ChannelFuture future = mChannel.close().sync();
        if (!future.isSuccess()) {
            throw new RuntimeException(future.cause());
        }/*w  w w  .java 2s .c om*/
    }
    if (mThread == null) {
        throw new RuntimeException("Invalid Thread state");
    }
    mRequestStop = true;
    mThread.interrupt();
    mThread = null;
}

From source file:com.zextras.modules.chat.server.LocalXmppConnectionProviderImpl.java

License:Open Source License

@Override
public Channel openConnection(String host, int port, final ChannelHandler channelHandler) throws IOException {
    ChannelHandler handler = new ChannelInitializer<SocketChannel>() {
        @Override//from  w w w .ja  v  a2  s. co  m
        protected void initChannel(SocketChannel socketChannel) throws Exception {
            SSLEngine sslEngine = mZimbraSSLContextProvider.get().createSSLEngine();
            sslEngine.setUseClientMode(true);
            SslHandler sslHandler = new SslHandler(sslEngine);
            socketChannel.pipeline().addFirst("ssl", sslHandler);
            socketChannel.pipeline().addLast("handler", channelHandler);
        }
    };
    ChannelFuture channelFuture = new Bootstrap().channel(NioSocketChannel.class).group(new NioEventLoopGroup())
            .handler(handler).connect(host, port);

    try {
        channelFuture.sync();
        if (!channelFuture.isSuccess()) {
            throw channelFuture.cause();
        }

        return channelFuture.channel();
    } catch (Throwable t) {
        throw new IOException(t);
    }
}