Java Code Examples for io.netty.bootstrap.Bootstrap#connect()
The following examples show how to use
io.netty.bootstrap.Bootstrap#connect() .
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Example 1
Source File: NettyThreadManager.java From fastjgame with Apache License 2.0 | 6 votes |
/** * 异步建立连接localHost * * @param hostAndPort 服务器地址 * @param sndBuffer socket发送缓冲区 * @param rcvBuffer socket接收缓冲区 * @param connectTimeoutMs 建立连接超时时间 * @param initializer channel初始化类,根据使用的协议(eg:tcp,ws) 和 序列化方式(eg:json,protoBuf)确定 * @return channelFuture 注意使用{@link ChannelFuture#sync()} 会抛出异常。 * 使用{@link ChannelFuture#await()} 和{@link ChannelFuture#isSuccess()} 安全处理。 * 此外,使用channel 需要调用 {@link Channel#isActive()}检查是否成功和远程建立连接 */ public ChannelFuture connectAsyn(HostAndPort hostAndPort, int sndBuffer, int rcvBuffer, int connectTimeoutMs, ChannelInitializer<SocketChannel> initializer) { Bootstrap bootstrap = new Bootstrap(); bootstrap.group(workerGroup); bootstrap.channel(NioSocketChannel.class); bootstrap.handler(initializer); bootstrap.option(ChannelOption.SO_KEEPALIVE, false); bootstrap.option(ChannelOption.TCP_NODELAY, true); bootstrap.option(ChannelOption.SO_SNDBUF, sndBuffer); bootstrap.option(ChannelOption.SO_RCVBUF, rcvBuffer); bootstrap.option(ChannelOption.SO_LINGER, 0); bootstrap.option(ChannelOption.SO_REUSEADDR, true); bootstrap.option(ChannelOption.WRITE_BUFFER_WATER_MARK, WRITE_BUFFER_WATER_MARK); bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, connectTimeoutMs); return bootstrap.connect(hostAndPort.getHost(), hostAndPort.getPort()); }
Example 2
Source File: ChannelMediator.java From flashback with BSD 2-Clause "Simplified" License | 6 votes |
/** * Establishing TCP connection to server * * @param remoteAddress remote address * */ public ChannelFuture connectToServer(final InetSocketAddress remoteAddress) { if (remoteAddress == null) { throw new IllegalStateException("remote address is null"); } Bootstrap bootstrap = new Bootstrap().group(_upstreamWorkerGroup); bootstrap.channelFactory(NioSocketChannel::new); ServerChannelHandler serverChannelHandler = new ServerChannelHandler(this); bootstrap.handler(new ChannelInitializer<Channel>() { protected void initChannel(Channel ch) throws Exception { initChannelPipeline(ch.pipeline(), serverChannelHandler, _serverConnectionIdleTimeoutMsec); _serverChannel = ch; } }); LOG.debug("Server channel is ready. About to connect...."); return bootstrap.connect(remoteAddress); }
Example 3
Source File: AbstractRedisProxyServerTest.java From x-pipe with Apache License 2.0 | 6 votes |
public ChannelFuture connect() throws Exception { startServer(); Bootstrap b = new Bootstrap(); b.group(new NioEventLoopGroup(1)) .channel(NioSocketChannel.class) .option(ChannelOption.TCP_NODELAY, true) .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT) .handler(new ChannelInitializer<SocketChannel>() { @Override public void initChannel(SocketChannel ch) throws Exception { ChannelPipeline p = ch.pipeline(); p.addLast(new LoggingHandler(LogLevel.DEBUG)); } }); return b.connect("127.0.0.1", config.frontendTcpPort()); }
Example 4
Source File: DatagramConnectNotExistsTest.java From netty-4.1.22 with Apache License 2.0 | 6 votes |
public void testConnectNotExists(Bootstrap cb) throws Throwable { final Promise<Throwable> promise = ImmediateEventExecutor.INSTANCE.newPromise(); cb.handler(new ChannelInboundHandlerAdapter() { @Override public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) { promise.trySuccess(cause); } }); ChannelFuture future = cb.connect(NetUtil.LOCALHOST, SocketTestPermutation.BAD_PORT); try { Channel datagramChannel = future.syncUninterruptibly().channel(); Assert.assertTrue(datagramChannel.isActive()); datagramChannel.writeAndFlush( Unpooled.copiedBuffer("test", CharsetUtil.US_ASCII)).syncUninterruptibly(); if (!(datagramChannel instanceof OioDatagramChannel)) { Assert.assertTrue(promise.syncUninterruptibly().getNow() instanceof PortUnreachableException); } } finally { future.channel().close(); } }
Example 5
Source File: NettyClient.java From spring-boot-demo with MIT License | 6 votes |
@PostConstruct public void start() { Bootstrap bootstrap = new Bootstrap(); bootstrap.group(group) .channel(NioSocketChannel.class) .remoteAddress(host, port) .option(ChannelOption.SO_KEEPALIVE, true) .option(ChannelOption.TCP_NODELAY, true) .handler(new NettyClientInitializer()); ChannelFuture future = bootstrap.connect(); //客户端断线重连逻辑 future.addListener((ChannelFutureListener) future1 -> { if (future1.isSuccess()) { log.info("连接Netty服务端成功"); } else { log.info("连接失败,进行断线重连"); future1.channel().eventLoop().schedule(() -> start(), 20, TimeUnit.SECONDS); } }); socketChannel = (SocketChannel) future.channel(); }
Example 6
Source File: OioEventLoopTest.java From netty4.0.27Learn with Apache License 2.0 | 5 votes |
@Test public void testTooManyClientChannels() throws Exception { EventLoopGroup g = new OioEventLoopGroup(1); ServerBootstrap sb = new ServerBootstrap(); sb.channel(OioServerSocketChannel.class); sb.group(g); sb.childHandler(new ChannelInboundHandlerAdapter()); ChannelFuture f1 = sb.bind(0); f1.sync(); Bootstrap cb = new Bootstrap(); cb.channel(OioSocketChannel.class); cb.group(g); cb.handler(new ChannelInboundHandlerAdapter()); ChannelFuture f2 = cb.connect(NetUtil.LOCALHOST, ((InetSocketAddress) f1.channel().localAddress()).getPort()); f2.await(); assertThat(f2.cause(), is(instanceOf(ChannelException.class))); assertThat(f2.cause().getMessage().toLowerCase(), containsString("too many channels")); final CountDownLatch notified = new CountDownLatch(1); f2.addListener(new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture future) throws Exception { notified.countDown(); } }); notified.await(); g.shutdownGracefully(); }
Example 7
Source File: NettyPerfClient.java From ambry with Apache License 2.0 | 5 votes |
/** * Starts the NettyPerfClient. * @throws InterruptedException */ protected void start() { logger.info("Starting NettyPerfClient"); reporter.start(); group = new NioEventLoopGroup(concurrency); perfClientStartTime = System.currentTimeMillis(); for (String host : hosts) { logger.info("Connecting to {}:{}", host, port); // create a new bootstrap with a fixed remote address for each host. This is the simplest way to support // reconnection on failure. All bootstraps will share the same event loop group. Bootstrap bootstrap = new Bootstrap().group(group).channel(NioSocketChannel.class).remoteAddress(host, port); bootstrap.handler(new ChannelInitializer<SocketChannel>() { @Override public void initChannel(SocketChannel ch) { logger.info("Initializing the channel to {}:{}", host, port); if (sslFactory != null) { ch.pipeline().addLast(new SslHandler(sslFactory.createSSLEngine(host, port, SSLFactory.Mode.CLIENT))); } ch.pipeline() .addLast(new HttpClientCodec()) .addLast(new ChunkedWriteHandler()) .addLast(new ResponseHandler(bootstrap)); } }); for (int i = 0; i < concurrency; i++) { ChannelFuture future = bootstrap.connect(); future.addListener(channelConnectListener); } hostToRequestCount.put(host, new AtomicLong(0)); hostToSleepTime.put(host, sleepTimeInMs); } if (backgroundScheduler != null) { backgroundScheduler.scheduleAtFixedRate(updater, 0, 1, TimeUnit.SECONDS); logger.info("Background scheduler is instantiated to update sleep time."); } isRunning = true; logger.info("Created {} channel(s) per remote host", concurrency); logger.info("NettyPerfClient started"); }
Example 8
Source File: SocketConnectionAttemptTest.java From netty4.0.27Learn with Apache License 2.0 | 5 votes |
public void testConnectTimeout(Bootstrap cb) throws Throwable { cb.handler(new TestHandler()).option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 2000); ChannelFuture future = cb.connect(BAD_HOST, BAD_PORT); try { assertThat(future.await(3000), is(true)); } finally { future.channel().close(); } }
Example 9
Source File: SocketConnectionAttemptTest.java From netty-4.1.22 with Apache License 2.0 | 5 votes |
public void testConnectTimeout(Bootstrap cb) throws Throwable { cb.handler(new TestHandler()).option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 2000); ChannelFuture future = cb.connect(BAD_HOST, BAD_PORT); try { assertThat(future.await(3000), is(true)); } finally { future.channel().close(); } }
Example 10
Source File: SimpleHttpProxyHandler.java From hadoop with Apache License 2.0 | 5 votes |
@Override public void channelRead0 (final ChannelHandlerContext ctx, final HttpRequest req) { uri = req.getUri(); final Channel client = ctx.channel(); Bootstrap proxiedServer = new Bootstrap() .group(client.eventLoop()) .channel(NioSocketChannel.class) .handler(new ChannelInitializer<SocketChannel>() { @Override protected void initChannel(SocketChannel ch) throws Exception { ChannelPipeline p = ch.pipeline(); p.addLast(new HttpRequestEncoder(), new Forwarder(uri, client)); } }); ChannelFuture f = proxiedServer.connect(host); proxiedChannel = f.channel(); f.addListener(new ChannelFutureListener() { @Override public void operationComplete(ChannelFuture future) throws Exception { if (future.isSuccess()) { ctx.channel().pipeline().remove(HttpResponseEncoder.class); HttpRequest newReq = new DefaultFullHttpRequest(HTTP_1_1, req.getMethod(), req.getUri()); newReq.headers().add(req.headers()); newReq.headers().set(CONNECTION, Values.CLOSE); future.channel().writeAndFlush(newReq); } else { DefaultHttpResponse resp = new DefaultHttpResponse(HTTP_1_1, INTERNAL_SERVER_ERROR); resp.headers().set(CONNECTION, Values.CLOSE); LOG.info("Proxy " + uri + " failed. Cause: ", future.cause()); ctx.writeAndFlush(resp).addListener(ChannelFutureListener.CLOSE); client.close(); } } }); }
Example 11
Source File: GenericClient.java From bitchat with Apache License 2.0 | 5 votes |
@Override public void connect() { Assert.notNull(serverAttr, "serverAttr can not be null"); EventLoopGroup group = new NioEventLoopGroup(); Bootstrap bootstrap = new Bootstrap(); bootstrap.group(group) .channel(NioSocketChannel.class) .handler(new LoggingHandler(LogLevel.INFO)) .handler(new ChannelInitializer<SocketChannel>() { @Override protected void initChannel(SocketChannel ch) throws Exception { ChannelPipeline pipeline = ch.pipeline(); pipeline.addLast(new ClientInitializer(GenericClient.this)); } }); ChannelFuture future = bootstrap.connect(serverAttr.getAddress(), serverAttr.getPort()); future.addListener(new GenericFutureListener<Future<? super Void>>() { @Override public void operationComplete(Future<? super Void> f) throws Exception { channel = future.channel(); if (f.isSuccess()) { connected = true; log.info("[{}] Has connected to {} successfully", GenericClient.class.getSimpleName(), serverAttr); } else { log.warn("[{}] Connect to {} failed, cause={}", GenericClient.class.getSimpleName(), serverAttr, f.cause().getMessage()); // fire the channelInactive and make sure // the {@link HealthyChecker} will reconnect channel.pipeline().fireChannelInactive(); } } }); }
Example 12
Source File: NettyClient.java From LuckyFrameClient with GNU Affero General Public License v3.0 | 5 votes |
public static void start() { EventLoopGroup group = new NioEventLoopGroup(); Bootstrap b = new Bootstrap(); clientHandler=new ClientHandler(); b.group(group) .channel(NioSocketChannel.class) .option(ChannelOption.SO_KEEPALIVE,true) .handler(new ChannelInitializer<SocketChannel>() { @Override public void initChannel(SocketChannel ch) { ByteBuf delimiter = Unpooled.copiedBuffer("$_".getBytes()); ChannelPipeline p = ch.pipeline(); p.addLast(new DelimiterBasedFrameDecoder(1024, delimiter)); p.addLast("decoder", new StringDecoder(StandardCharsets.UTF_8)); p.addLast("encoder", new StringEncoder(Charset.forName("GBK"))); p.addLast(new IdleStateHandler(1,0,0,TimeUnit.SECONDS)); p.addLast(clientHandler); } }); //���ӷ���� ChannelFuture connect = b.connect(NETTY_SERVER_IP, NETTY_SERVER_PORT); //�������� connect.addListener((ChannelFutureListener) channelFuture -> { if (!channelFuture.isSuccess()) { final EventLoop loop = channelFuture.channel().eventLoop(); loop.schedule(() -> { try { log.error("��������Ӳ��ϣ���ʼ��������..."); start(); } catch (Exception ignored) { } }, 1L, TimeUnit.SECONDS); } else { channel = channelFuture.channel(); log.info("��������ӳɹ�..."); } }); }
Example 13
Source File: HttpProxyClientHandler.java From http-proxy-netty with MIT License | 4 votes |
@Override public void channelRead(ChannelHandlerContext ctx, Object msg) { if (header.isComplete()) { remoteChannel.writeAndFlush(msg); // just forward return; } ByteBuf in = (ByteBuf) msg; header.digest(in); if (!header.isComplete()) { in.release(); return; } logger.info(id + " {}", header); clientChannel.config().setAutoRead(false); // disable AutoRead until remote connection is ready if (header.isHttps()) { // if https, respond 200 to create tunnel clientChannel.writeAndFlush(Unpooled.wrappedBuffer("HTTP/1.1 200 Connection Established\r\n\r\n".getBytes())); } Bootstrap b = new Bootstrap(); b.group(clientChannel.eventLoop()) // use the same EventLoop .channel(clientChannel.getClass()) .handler(appCtx.getBean(HttpProxyRemoteHandler.class, id, clientChannel)); ChannelFuture f = b.connect(header.getHost(), header.getPort()); remoteChannel = f.channel(); f.addListener((ChannelFutureListener) future -> { if (future.isSuccess()) { clientChannel.config().setAutoRead(true); // connection is ready, enable AutoRead if (!header.isHttps()) { // forward header and remaining bytes remoteChannel.write(header.getByteBuf()); } remoteChannel.writeAndFlush(in); } else { in.release(); clientChannel.close(); } }); }
Example 14
Source File: JNettyDomainConnector.java From Jupiter with Apache License 2.0 | 4 votes |
@Override public JConnection connect(UnresolvedAddress address, boolean async) { setOptions(); final Bootstrap boot = bootstrap(); final SocketAddress socketAddress = new DomainSocketAddress(address.getPath()); final JChannelGroup group = group(address); // 重连watchdog final ConnectionWatchdog watchdog = new ConnectionWatchdog(boot, timer, socketAddress, group) { @Override public ChannelHandler[] handlers() { return new ChannelHandler[] { new FlushConsolidationHandler(JConstants.EXPLICIT_FLUSH_AFTER_FLUSHES, true), this, new IdleStateChecker(timer, 0, JConstants.WRITER_IDLE_TIME_SECONDS, 0), idleStateTrigger, CodecConfig.isCodecLowCopy() ? new LowCopyProtocolDecoder() : new ProtocolDecoder(), encoder, handler }; } }; ChannelFuture future; try { synchronized (bootstrapLock()) { boot.handler(new ChannelInitializer<Channel>() { @Override protected void initChannel(Channel ch) throws Exception { ch.pipeline().addLast(watchdog.handlers()); } }); future = boot.connect(socketAddress); } // 以下代码在synchronized同步块外面是安全的 if (!async) { future.sync(); } } catch (Throwable t) { throw new ConnectFailedException("Connects to [" + address + "] fails", t); } return new JNettyConnection(address, future) { @Override public void setReconnect(boolean reconnect) { if (reconnect) { watchdog.start(); } else { watchdog.stop(); } } }; }
Example 15
Source File: ProxyServer.java From nomulus with Apache License 2.0 | 4 votes |
/** * Establishes an outbound relay channel and sets the relevant metadata on both channels. * * <p>This method also adds a listener that is called when the established outbound connection * is closed. The outbound connection to GAE is *not* guaranteed to persist. In case that the * outbound connection closes but the inbound connection is still active, the listener calls * this function again to re-establish another outbound connection. The metadata is also reset * so that the inbound channel knows to relay to the new outbound channel. */ private static void connectOutboundChannel( Bootstrap bootstrap, FrontendProtocol inboundProtocol, BackendProtocol outboundProtocol, NioSocketChannel inboundChannel) { ChannelFuture outboundChannelFuture = bootstrap.connect(outboundProtocol.host(), outboundProtocol.port()); outboundChannelFuture.addListener( (ChannelFuture future) -> { if (future.isSuccess()) { // Outbound connection is successful, now we can set the metadata to couple these two // connections together. Channel outboundChannel = future.channel(); // Inbound channel relays to outbound channel. inboundChannel.attr(RELAY_CHANNEL_KEY).set(outboundChannel); // Outbound channel established successfully, inbound channel can start reading. // This setter also calls channel.read() to request read operation. inboundChannel.config().setAutoRead(true); logger.atInfo().log( "Relay established: %s <-> %s\nFRONTEND: %s\nBACKEND: %s", inboundProtocol.name(), outboundProtocol.name(), inboundChannel, outboundChannel); // Now that we have a functional relay channel to the backend, if there's any // buffered requests, send them off to the relay channel. We need to obtain a copy // of the messages and clear the queue first, because if the relay is not successful, // the message will be written back to the queue, causing an infinite loop. Queue<Object> relayBuffer = inboundChannel.attr(RELAY_BUFFER_KEY).get(); Object[] messages = relayBuffer.toArray(); relayBuffer.clear(); for (Object msg : messages) { logger.atInfo().log( "Relay retried: %s <-> %s\nFRONTEND: %s\nBACKEND: %s\nHASH: %s", inboundProtocol.name(), outboundProtocol.name(), inboundChannel, outboundChannel, msg.hashCode()); writeToRelayChannel(inboundChannel, outboundChannel, msg, true); } // When this outbound connection is closed, try reconnecting if the inbound connection // is still active. ChannelFuture unusedChannelFuture = outboundChannel .closeFuture() .addListener( (ChannelFuture future2) -> { if (inboundChannel.isActive()) { logger.atInfo().log( "Relay interrupted: %s <-> %s\nFRONTEND: %s\nBACKEND: %s", inboundProtocol.name(), outboundProtocol.name(), inboundChannel, outboundChannel); connectOutboundChannel( bootstrap, inboundProtocol, outboundProtocol, inboundChannel); } else { logger.atInfo().log( "Relay terminated: %s <-> %s\nFRONTEND: %s\nBACKEND: %s", inboundProtocol.name(), outboundProtocol.name(), inboundChannel, outboundChannel); } }); } else { // We cannot connect to GAE for unknown reasons, no relay can be done so drop the // inbound connection as well. logger.atSevere().withCause(future.cause()).log( "Cannot connect to relay channel for %s channel: %s.", inboundProtocol.name(), inboundChannel); ChannelFuture unusedFuture = inboundChannel.close(); } }); }
Example 16
Source File: NioUdtMessageRendezvousChannelTest.java From netty-4.1.22 with Apache License 2.0 | 4 votes |
/** * verify basic echo message rendezvous * * FIXME: Re-enable after making it pass on Windows without unncessary tight loop. * https://github.com/netty/netty/issues/2853 */ @Test(timeout = 10 * 1000) @Ignore public void basicEcho() throws Exception { final int messageSize = 64 * 1024; final int transferLimit = messageSize * 16; final Meter rate1 = Metrics.newMeter( NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes", TimeUnit.SECONDS); final Meter rate2 = Metrics.newMeter( NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes", TimeUnit.SECONDS); final InetSocketAddress addr1 = UnitHelp.localSocketAddress(); final InetSocketAddress addr2 = UnitHelp.localSocketAddress(); final EchoMessageHandler handler1 = new EchoMessageHandler(rate1, messageSize); final EchoMessageHandler handler2 = new EchoMessageHandler(rate2, messageSize); final NioEventLoopGroup group1 = new NioEventLoopGroup( 1, Executors.defaultThreadFactory(), NioUdtProvider.MESSAGE_PROVIDER); final NioEventLoopGroup group2 = new NioEventLoopGroup( 1, Executors.defaultThreadFactory(), NioUdtProvider.MESSAGE_PROVIDER); final Bootstrap boot1 = new Bootstrap(); boot1.group(group1) .channelFactory(NioUdtProvider.MESSAGE_RENDEZVOUS) .localAddress(addr1).remoteAddress(addr2).handler(handler1); final Bootstrap boot2 = new Bootstrap(); boot2.group(group2) .channelFactory(NioUdtProvider.MESSAGE_RENDEZVOUS) .localAddress(addr2).remoteAddress(addr1).handler(handler2); final ChannelFuture connectFuture1 = boot1.connect(); final ChannelFuture connectFuture2 = boot2.connect(); while (handler1.meter().count() < transferLimit && handler2.meter().count() < transferLimit) { log.info("progress : {} {}", handler1.meter().count(), handler2 .meter().count()); Thread.sleep(1000); } connectFuture1.channel().close().sync(); connectFuture2.channel().close().sync(); log.info("handler1 : {}", handler1.meter().count()); log.info("handler2 : {}", handler2.meter().count()); assertTrue(handler1.meter().count() >= transferLimit); assertTrue(handler2.meter().count() >= transferLimit); assertEquals(handler1.meter().count(), handler2.meter().count()); group1.shutdownGracefully(); group2.shutdownGracefully(); group1.terminationFuture().sync(); group2.terminationFuture().sync(); }
Example 17
Source File: NioUdtByteRendezvousChannelTest.java From netty-4.1.22 with Apache License 2.0 | 4 votes |
/** * verify basic echo byte rendezvous */ @Test(timeout = 10 * 1000) public void basicEcho() throws Exception { final int messageSize = 64 * 1024; final int transferLimit = messageSize * 16; final Meter rate1 = Metrics.newMeter( NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes", TimeUnit.SECONDS); final Meter rate2 = Metrics.newMeter( NioUdtMessageRendezvousChannelTest.class, "send rate", "bytes", TimeUnit.SECONDS); final InetSocketAddress addr1 = UnitHelp.localSocketAddress(); final InetSocketAddress addr2 = UnitHelp.localSocketAddress(); final EchoByteHandler handler1 = new EchoByteHandler(rate1, messageSize); final EchoByteHandler handler2 = new EchoByteHandler(rate2, messageSize); final NioEventLoopGroup group1 = new NioEventLoopGroup( 1, Executors.defaultThreadFactory(), NioUdtProvider.BYTE_PROVIDER); final NioEventLoopGroup group2 = new NioEventLoopGroup( 1, Executors.defaultThreadFactory(), NioUdtProvider.BYTE_PROVIDER); final Bootstrap boot1 = new Bootstrap(); boot1.group(group1) .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS) .localAddress(addr1) .remoteAddress(addr2) .handler(handler1); final Bootstrap boot2 = new Bootstrap(); boot2.group(group1) .channelFactory(NioUdtProvider.BYTE_RENDEZVOUS) .localAddress(addr2) .remoteAddress(addr1) .handler(handler2); final ChannelFuture connectFuture1 = boot1.connect(); final ChannelFuture connectFuture2 = boot2.connect(); while (handler1.meter().count() < transferLimit && handler2.meter().count() < transferLimit) { log.info("progress : {} {}", handler1.meter().count(), handler2 .meter().count()); Thread.sleep(1000); } connectFuture1.channel().close().sync(); connectFuture2.channel().close().sync(); log.info("handler1 : {}", handler1.meter().count()); log.info("handler2 : {}", handler2.meter().count()); assertTrue(handler1.meter().count() >= transferLimit); assertTrue(handler2.meter().count() >= transferLimit); assertEquals(handler1.meter().count(), handler2.meter().count()); group1.shutdownGracefully(); group2.shutdownGracefully(); group1.terminationFuture().sync(); group2.terminationFuture().sync(); }
Example 18
Source File: JNettyTcpConnector.java From Jupiter with Apache License 2.0 | 4 votes |
@Override public JConnection connect(UnresolvedAddress address, boolean async) { setOptions(); final Bootstrap boot = bootstrap(); final SocketAddress socketAddress = InetSocketAddress.createUnresolved(address.getHost(), address.getPort()); final JChannelGroup group = group(address); // 重连watchdog final ConnectionWatchdog watchdog = new ConnectionWatchdog(boot, timer, socketAddress, group) { @Override public ChannelHandler[] handlers() { return new ChannelHandler[] { new FlushConsolidationHandler(JConstants.EXPLICIT_FLUSH_AFTER_FLUSHES, true), this, new IdleStateChecker(timer, 0, JConstants.WRITER_IDLE_TIME_SECONDS, 0), idleStateTrigger, CodecConfig.isCodecLowCopy() ? new LowCopyProtocolDecoder() : new ProtocolDecoder(), encoder, handler }; } }; ChannelFuture future; try { synchronized (bootstrapLock()) { boot.handler(new ChannelInitializer<Channel>() { @Override protected void initChannel(Channel ch) throws Exception { ch.pipeline().addLast(watchdog.handlers()); } }); future = boot.connect(socketAddress); } // 以下代码在synchronized同步块外面是安全的 if (!async) { future.sync(); } } catch (Throwable t) { throw new ConnectFailedException("Connects to [" + address + "] fails", t); } return new JNettyConnection(address, future) { @Override public void setReconnect(boolean reconnect) { if (reconnect) { watchdog.start(); } else { watchdog.stop(); } } }; }
Example 19
Source File: EchoClientController.java From examples-javafx-repos1 with Apache License 2.0 | 4 votes |
@FXML public void connect() { if( connected.get() ) { if( logger.isWarnEnabled() ) { logger.warn("client already connected; skipping connect"); } return; // already connected; should be prevented with disabled } String host = tfHost.getText(); int port = Integer.parseInt(tfPort.getText()); group = new NioEventLoopGroup(); Task<Channel> task = new Task<Channel>() { @Override protected Channel call() throws Exception { updateMessage("Bootstrapping"); updateProgress(0.1d, 1.0d); Bootstrap b = new Bootstrap(); b .group(group) .channel(NioSocketChannel.class) .remoteAddress( new InetSocketAddress(host, port) ) .handler( new ChannelInitializer<SocketChannel>() { @Override protected void initChannel(SocketChannel ch) throws Exception { ch.pipeline().addLast(new EchoClientHandler(receivingMessageModel)); } }); ChannelFuture f = b.connect(); Channel chn = f.channel(); updateMessage("Connecting"); updateProgress(0.2d, 1.0d); f.sync(); return chn; } @Override protected void succeeded() { channel = getValue(); connected.set(true); } @Override protected void failed() { Throwable exc = getException(); logger.error( "client connect error", exc ); Alert alert = new Alert(AlertType.ERROR); alert.setTitle("Client"); alert.setHeaderText( exc.getClass().getName() ); alert.setContentText( exc.getMessage() ); alert.showAndWait(); connected.set(false); } }; hboxStatus.visibleProperty().bind( task.runningProperty() ); lblStatus.textProperty().bind( task.messageProperty() ); piStatus.progressProperty().bind(task.progressProperty()); new Thread(task).start(); }
Example 20
Source File: SimpleChannelPool.java From netty-4.1.22 with Apache License 2.0 | 2 votes |
/** * Bootstrap a new {@link Channel}. The default implementation uses {@link Bootstrap#connect()}, sub-classes may * override this. * <p> * The {@link Bootstrap} that is passed in here is cloned via {@link Bootstrap#clone()}, so it is safe to modify. * 引导一个新的通道。默认实现使用Bootstrap.connect(),子类可能会覆盖这个。 这里传递的引导程序是通过Bootstrap.clone()克隆的,因此修改是安全的。 */ protected ChannelFuture connectChannel(Bootstrap bs) { return bs.connect(); }