Example usage for io.netty.channel ChannelHandlerContext executor

List of usage examples for io.netty.channel ChannelHandlerContext executor

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Introduction

In this page you can find the example usage for io.netty.channel ChannelHandlerContext executor.

Prototype

EventExecutor executor();

Source Link

Document

Returns the EventExecutor which is used to execute an arbitrary task.

Usage

From source file:com.xx_dev.apn.socks.remote.SocksServerConnectHandler.java

License:Apache License

@Override
public void channelRead0(final ChannelHandlerContext ctx, final SocksCmdRequest request) throws Exception {
    Promise<Channel> promise = ctx.executor().newPromise();
    promise.addListener(new GenericFutureListener<Future<Channel>>() {
        @Override//from w ww  . j ava  2s . c om
        public void operationComplete(final Future<Channel> future) throws Exception {
            final Channel outboundChannel = future.getNow();
            if (future.isSuccess()) {
                restLogger.info(request.host() + ":" + request.port() + "," + "T");
                ctx.channel().writeAndFlush(new SocksCmdResponse(SocksCmdStatus.SUCCESS, request.addressType()))
                        .addListener(new ChannelFutureListener() {
                            @Override
                            public void operationComplete(ChannelFuture channelFuture) {
                                ctx.pipeline().remove(SocksServerConnectHandler.this);
                                outboundChannel.pipeline().addLast(new RelayHandler(ctx.channel()));
                                ctx.pipeline().addLast(new RelayHandler(outboundChannel));
                            }
                        });
            } else {
                restLogger.info(request.host() + ":" + request.port() + "," + "F");
                ctx.channel()
                        .writeAndFlush(new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));
                SocksServerUtils.closeOnFlush(ctx.channel());
            }
        }
    });

    final Channel inboundChannel = ctx.channel();
    b.group(inboundChannel.eventLoop()).channel(NioSocketChannel.class)
            .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 10000).option(ChannelOption.SO_KEEPALIVE, true)
            .handler(new DirectClientHandler(promise));

    b.connect(request.host(), request.port()).addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture future) throws Exception {
            if (future.isSuccess()) {
                // Connection established use handler provided results
            } else {
                // Close the connection if the connection attempt has failed.
                restLogger.info(request.host() + ":" + request.port() + "," + "F");
                ctx.channel()
                        .writeAndFlush(new SocksCmdResponse(SocksCmdStatus.FAILURE, request.addressType()));
                SocksServerUtils.closeOnFlush(ctx.channel());
            }
        }
    });
}

From source file:com.yahoo.pulsar.common.api.PulsarHandler.java

License:Apache License

@Override
public void channelActive(ChannelHandlerContext ctx) throws Exception {
    this.remoteAddress = ctx.channel().remoteAddress();
    this.ctx = ctx;

    if (log.isDebugEnabled()) {
        log.debug("[{}] Scheduling keep-alive task every {} s", ctx.channel(), keepAliveIntervalSeconds);
    }//from ww  w  . ja  v  a2  s.c  om
    if (keepAliveIntervalSeconds > 0) {
        this.keepAliveTask = ctx.executor().scheduleAtFixedRate(this::handleKeepAliveTimeout,
                keepAliveIntervalSeconds, keepAliveIntervalSeconds, TimeUnit.SECONDS);
    }
}

From source file:com.zaradai.distributor.messaging.netty.handler.AbstractHandshakeHandler.java

License:Apache License

private Future<Channel> handshake(final ChannelHandlerContext handlerContext) {
    handshakePromise = new DefaultPromise<Channel>(handlerContext.executor());
    final ScheduledFuture<?> timeoutFuture;
    if (handshakeTimeout > 0) {
        timeoutFuture = handlerContext.executor().schedule(new Runnable() {
            @Override/*from   w w w. j a va 2  s.  co  m*/
            public void run() {
                if (handshakePromise.isDone()) {
                    return;
                }
                notifyHandshakeFailure(handlerContext, HANDSHAKE_TIMED_OUT);
            }
        }, handshakeTimeout, TimeUnit.MILLISECONDS);
    } else {
        timeoutFuture = null;
    }

    handshakePromise.addListener(new GenericFutureListener<Future<? super Channel>>() {
        @Override
        public void operationComplete(Future<? super Channel> future) throws Exception {
            if (timeoutFuture != null) {
                timeoutFuture.cancel(false);
            }
        }
    });

    try {
        beginHandshake(handlerContext);
    } catch (Exception e) {
        notifyHandshakeFailure(handlerContext, e);
    }

    return handshakePromise;
}

From source file:com.zhaopeng.timeserver.protocol.netty.client.HeartBeatReqHandler.java

License:Apache License

public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;
    // ?????//from w ww .j  a  va2  s . co m
    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        heartBeat = ctx.executor().scheduleAtFixedRate(new HeartBeatTask(ctx), 0, 5000, TimeUnit.MILLISECONDS);
    } else if (message.getHeader() != null
            && message.getHeader().getType() == MessageType.HEARTBEAT_RESP.value()) {
        System.out.println("Client receive server heart beat message : ---> " + message);
    } else
        ctx.fireChannelRead(msg);
}

From source file:com.zz.learning.netty5.chap12.client.HeartBeatReqHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
    NettyMessage message = (NettyMessage) msg;
    // ?????//  w w w  .  j  a  v a 2  s. c  om
    if (message.getHeader() != null && message.getHeader().getType() == MessageType.LOGIN_RESP.value()) {
        heartBeat = ctx.executor().scheduleAtFixedRate(new HeartBeatReqHandler.HeartBeatTask(ctx), 0, 5000,
                TimeUnit.MILLISECONDS);
    } else if (message.getHeader() != null
            && message.getHeader().getType() == MessageType.HEARTBEAT_RESP.value()) {
        System.out.println("Client receive server heart beat message : ---> " + message);
    } else {
        ctx.fireChannelRead(msg);
    }
}

From source file:cyril.server.io.AuthHandler.java

License:Open Source License

@Override
protected void initialize(ChannelHandlerContext ctx) {
    wrapped = auth.wrap(ctx.channel());//from  www . j a v a  2  s.  c o m
    killTask = ctx.executor().schedule(new KillTask(ctx), ProtocolConstants.AUTH_TIMEOUT, TimeUnit.SECONDS);
}

From source file:divconq.net.ssl.SslHandler.java

License:Apache License

public ChannelFuture close(final ChannelPromise future) {
    final ChannelHandlerContext ctx = this.ctx;
    ctx.executor().execute(new Runnable() {
        @Override//from w  w w  .  ja  v  a 2  s  .  c  o  m
        public void run() {
            engine.closeOutbound();
            try {
                write(ctx, Unpooled.EMPTY_BUFFER, future);
                flush(ctx);
            } catch (Exception e) {
                if (!future.tryFailure(e)) {
                    logger.warn("flush() raised a masked exception.", e);
                }
            }
        }
    });

    return future;
}

From source file:divconq.net.ssl.SslHandler.java

License:Apache License

private void safeClose(final ChannelHandlerContext ctx, ChannelFuture flushFuture,
        final ChannelPromise promise) {
    if (!ctx.channel().isActive()) {
        ctx.close(promise);/*from www . j av  a  2 s .c o  m*/
        return;
    }

    final ScheduledFuture<?> timeoutFuture;
    if (closeNotifyTimeoutMillis > 0) {
        // Force-close the connection if close_notify is not fully sent in time.
        timeoutFuture = ctx.executor().schedule(new Runnable() {
            @Override
            public void run() {
                logger.warn(
                        ctx.channel() + " last write attempt timed out." + " Force-closing the connection.");
                ctx.close(promise);
            }
        }, closeNotifyTimeoutMillis, TimeUnit.MILLISECONDS);
    } else {
        timeoutFuture = null;
    }

    // Close the connection if close_notify is sent in time.
    flushFuture.addListener(new ChannelFutureListener() {
        @Override
        public void operationComplete(ChannelFuture f) throws Exception {
            if (timeoutFuture != null) {
                timeoutFuture.cancel(false);
            }
            // Trigger the close in all cases to make sure the promise is notified
            // See https://github.com/netty/netty/issues/2358
            ctx.close(promise);
        }
    });
}

From source file:http2.bench.netty.HelloWorldHttp1Handler.java

License:Apache License

@Override
public void channelRead0(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
    if (HttpUtil.is100ContinueExpected(req)) {
        ctx.write(new DefaultFullHttpResponse(HTTP_1_1, CONTINUE));
    }//from   w  ww  . j  a  v a2 s .  c o  m
    ctx.executor().schedule(() -> {
        boolean keepAlive = HttpUtil.isKeepAlive(req);
        FullHttpResponse response = new DefaultFullHttpResponse(HTTP_1_1, OK,
                HelloWorldHttp2Handler.RESPONSE_BYTES.duplicate());
        response.headers().set(CONTENT_TYPE, "text/plain; charset=UTF-8");
        response.headers().setInt(CONTENT_LENGTH, response.content().readableBytes());
        if (!keepAlive) {
            ctx.writeAndFlush(response).addListener(ChannelFutureListener.CLOSE);
        } else {
            response.headers().set(CONNECTION, HttpHeaderValues.KEEP_ALIVE);
            ctx.writeAndFlush(response);
        }
    }, 20, TimeUnit.MILLISECONDS);
}

From source file:io.airlift.drift.transport.netty.client.ThriftClientHandler.java

License:Apache License

private void sendMessage(ChannelHandlerContext context, ThriftRequest thriftRequest, ChannelPromise promise)
        throws Exception {
    // todo ONEWAY_SEQUENCE_ID is a header protocol thing... make sure this works with framed and unframed
    int sequenceId = thriftRequest.isOneway() ? ONEWAY_SEQUENCE_ID : this.sequenceId.incrementAndGet();
    RequestHandler requestHandler = new RequestHandler(thriftRequest, sequenceId);

    // register timeout
    requestHandler.registerRequestTimeout(context.executor());

    // write request
    ByteBuf requestBuffer = requestHandler.encodeRequest(context.alloc());

    // register request if we are expecting a response
    if (!thriftRequest.isOneway()) {
        if (pendingRequests.putIfAbsent(sequenceId, requestHandler) != null) {
            requestHandler.onChannelError(
                    new TTransportException("Another request with the same sequenceId is already in progress"));
            requestBuffer.release();//from  w ww.j  a v a  2s .  com
            return;
        }
    }

    // if this connection is failed, immediately fail the request
    TException channelError = this.channelError.get();
    if (channelError != null) {
        thriftRequest.failed(channelError);
        requestBuffer.release();
        return;
    }

    try {
        ThriftFrame thriftFrame = new ThriftFrame(sequenceId, requestBuffer, thriftRequest.getHeaders(),
                transport, protocol, true);

        ChannelFuture sendFuture = context.write(thriftFrame, promise);
        sendFuture.addListener(future -> messageSent(context, sendFuture, requestHandler));
    } catch (Throwable t) {
        onError(context, t, Optional.of(requestHandler));
        requestBuffer.release();
    }
}