Examples with ChannelHandlerContext org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext used on opensource projects

Example 21 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project vert.x by eclipse.

the class EventLoopGroupTest method testNettyServerUsesContextEventLoop.

@Test
public void testNettyServerUsesContextEventLoop() throws Exception {
    ContextInternal context = (ContextInternal) vertx.getOrCreateContext();
    AtomicReference<Thread> contextThread = new AtomicReference<>();
    CountDownLatch latch = new CountDownLatch(1);
    context.runOnContext(v -> {
        contextThread.set(Thread.currentThread());
        latch.countDown();
    });
    awaitLatch(latch);
    ServerBootstrap bs = new ServerBootstrap();
    bs.group(context.nettyEventLoop());
    bs.channel(NioServerSocketChannel.class);
    bs.option(ChannelOption.SO_BACKLOG, 100);
    bs.childHandler(new ChannelInitializer<SocketChannel>() {

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            assertSame(contextThread.get(), Thread.currentThread());
            context.executeFromIO(() -> {
                assertSame(contextThread.get(), Thread.currentThread());
                assertSame(context, Vertx.currentContext());
                ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {

                    @Override
                    public void channelActive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                        ByteBuf buf = (ByteBuf) msg;
                        assertEquals("hello", buf.toString(StandardCharsets.UTF_8));
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                        });
                    }

                    @Override
                    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            ctx.writeAndFlush(Unpooled.EMPTY_BUFFER).addListener(ChannelFutureListener.CLOSE);
                        });
                    }

                    @Override
                    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
                        assertSame(contextThread.get(), Thread.currentThread());
                        context.executeFromIO(() -> {
                            assertSame(contextThread.get(), Thread.currentThread());
                            assertSame(context, Vertx.currentContext());
                            testComplete();
                        });
                    }

                    @Override
                    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
                        fail(cause.getMessage());
                    }
                });
            });
        }
    });
    bs.bind("localhost", 1234).sync();
    vertx.createNetClient(new NetClientOptions()).connect(1234, "localhost", ar -> {
        assertTrue(ar.succeeded());
        NetSocket so = ar.result();
        so.write(Buffer.buffer("hello"));
    });
    await();
}

Example 22 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project vert.x by eclipse.

the class HttpServerImpl method listen.

public synchronized HttpServer listen(int port, String host, Handler<AsyncResult<HttpServer>> listenHandler) {
    if (requestStream.handler() == null && wsStream.handler() == null) {
        throw new IllegalStateException("Set request or websocket handler first");
    }
    if (listening) {
        throw new IllegalStateException("Already listening");
    }
    listenContext = vertx.getOrCreateContext();
    listening = true;
    serverOrigin = (options.isSsl() ? "https" : "http") + "://" + host + ":" + port;
    List<HttpVersion> applicationProtocols = options.getAlpnVersions();
    if (listenContext.isWorkerContext()) {
        applicationProtocols = applicationProtocols.stream().filter(v -> v != HttpVersion.HTTP_2).collect(Collectors.toList());
    }
    sslHelper.setApplicationProtocols(applicationProtocols);
    synchronized (vertx.sharedHttpServers()) {
        // Will be updated on bind for a wildcard port
        this.actualPort = port;
        id = new ServerID(port, host);
        HttpServerImpl shared = vertx.sharedHttpServers().get(id);
        if (shared == null || port == 0) {
            serverChannelGroup = new DefaultChannelGroup("vertx-acceptor-channels", GlobalEventExecutor.INSTANCE);
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(vertx.getAcceptorEventLoopGroup(), availableWorkers);
            bootstrap.channel(NioServerSocketChannel.class);
            applyConnectionOptions(bootstrap);
            sslHelper.validate(vertx);
            bootstrap.childHandler(new ChannelInitializer<Channel>() {

                @Override
                protected void initChannel(Channel ch) throws Exception {
                    if (requestStream.isPaused() || wsStream.isPaused()) {
                        ch.close();
                        return;
                    }
                    ChannelPipeline pipeline = ch.pipeline();
                    if (sslHelper.isSSL()) {
                        pipeline.addLast("ssl", sslHelper.createSslHandler(vertx));
                        if (options.isUseAlpn()) {
                            pipeline.addLast("alpn", new ApplicationProtocolNegotiationHandler("http/1.1") {

                                @Override
                                protected void configurePipeline(ChannelHandlerContext ctx, String protocol) throws Exception {
                                    if (protocol.equals("http/1.1")) {
                                        configureHttp1(pipeline);
                                    } else {
                                        handleHttp2(ch);
                                    }
                                }
                            });
                        } else {
                            configureHttp1(pipeline);
                        }
                    } else {
                        if (DISABLE_HC2) {
                            configureHttp1(pipeline);
                        } else {
                            pipeline.addLast(new Http1xOrHttp2Handler());
                        }
                    }
                }
            });
            addHandlers(this, listenContext);
            try {
                bindFuture = AsyncResolveConnectHelper.doBind(vertx, port, host, bootstrap);
                bindFuture.addListener(res -> {
                    if (res.failed()) {
                        vertx.sharedHttpServers().remove(id);
                    } else {
                        Channel serverChannel = res.result();
                        HttpServerImpl.this.actualPort = ((InetSocketAddress) serverChannel.localAddress()).getPort();
                        serverChannelGroup.add(serverChannel);
                        metrics = vertx.metricsSPI().createMetrics(this, new SocketAddressImpl(port, host), options);
                    }
                });
            } catch (final Throwable t) {
                // Make sure we send the exception back through the handler (if any)
                if (listenHandler != null) {
                    vertx.runOnContext(v -> listenHandler.handle(Future.failedFuture(t)));
                } else {
                    // No handler - log so user can see failure
                    log.error(t);
                }
                listening = false;
                return this;
            }
            vertx.sharedHttpServers().put(id, this);
            actualServer = this;
        } else {
            // Server already exists with that host/port - we will use that
            actualServer = shared;
            this.actualPort = shared.actualPort;
            addHandlers(actualServer, listenContext);
            metrics = vertx.metricsSPI().createMetrics(this, new SocketAddressImpl(port, host), options);
        }
        actualServer.bindFuture.addListener(future -> {
            if (listenHandler != null) {
                final AsyncResult<HttpServer> res;
                if (future.succeeded()) {
                    res = Future.succeededFuture(HttpServerImpl.this);
                } else {
                    res = Future.failedFuture(future.cause());
                    listening = false;
                }
                listenContext.runOnContext((v) -> listenHandler.handle(res));
            } else if (future.failed()) {
                listening = false;
                log.error(future.cause());
            }
        });
    }
    return this;
}

Example 23 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project vert.x by eclipse.

the class Http2ServerTest method testServerSendGoAway.

private void testServerSendGoAway(Handler<HttpServerRequest> requestHandler, int expectedError) throws Exception {
    server.requestHandler(requestHandler);
    startServer();
    TestClient client = new TestClient();
    ChannelFuture fut = client.connect(DEFAULT_HTTPS_PORT, DEFAULT_HTTPS_HOST, request -> {
        request.decoder.frameListener(new Http2EventAdapter() {

            @Override
            public void onGoAwayRead(ChannelHandlerContext ctx, int lastStreamId, long errorCode, ByteBuf debugData) throws Http2Exception {
                vertx.runOnContext(v -> {
                    assertEquals(expectedError, errorCode);
                    complete();
                });
            }
        });
        Http2ConnectionEncoder encoder = request.encoder;
        int id1 = request.nextStreamId();
        encoder.writeHeaders(request.context, id1, GET("/"), 0, true, request.context.newPromise());
        int id2 = request.nextStreamId();
        encoder.writeHeaders(request.context, id2, GET("/"), 0, true, request.context.newPromise());
        request.context.flush();
    });
    fut.sync();
    await();
}

Example 24 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project mongo-java-driver by mongodb.

the class NettyStream method adjustTimeout.

private void adjustTimeout(final boolean disable) {
    ChannelHandler timeoutHandler = channel.pipeline().get(READ_HANDLER_NAME);
    if (timeoutHandler != null) {
        final ReadTimeoutHandler readTimeoutHandler = (ReadTimeoutHandler) timeoutHandler;
        final ChannelHandlerContext handlerContext = channel.pipeline().context(timeoutHandler);
        EventExecutor executor = handlerContext.executor();
        if (disable) {
            if (executor.inEventLoop()) {
                readTimeoutHandler.removeTimeout(handlerContext);
            } else {
                executor.submit(new Runnable() {

                    @Override
                    public void run() {
                        readTimeoutHandler.removeTimeout(handlerContext);
                    }
                });
            }
        } else {
            if (executor.inEventLoop()) {
                readTimeoutHandler.scheduleTimeout(handlerContext);
            } else {
                executor.submit(new Runnable() {

                    @Override
                    public void run() {
                        readTimeoutHandler.scheduleTimeout(handlerContext);
                    }
                });
            }
        }
    }
}

Example 25 with ChannelHandlerContext

use of org.apache.flink.shaded.netty4.io.netty.channel.ChannelHandlerContext in project failsafe by jhalterman.

the class NettyExample method createBootstrap.

static Bootstrap createBootstrap(EventLoopGroup group) {
    return new Bootstrap().group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {

        @Override
        public void initChannel(SocketChannel ch) throws Exception {
            ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {

                @Override
                public void channelRead(ChannelHandlerContext ctx, Object msg) {
                    ctx.write(msg);
                }

                @Override
                public void channelReadComplete(ChannelHandlerContext ctx) {
                    ctx.flush();
                }

                @Override
                public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
                    // Close the connection when an exception is raised.
                    cause.printStackTrace();
                    ctx.close();
                }
            });
        }
    });
}