Examples with Bootstrap io.netty.bootstrap.Bootstrap used on opensource projects

Example 21 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project hbase by apache.

the class FanOutOneBlockAsyncDFSOutputHelper method connectToDataNodes.

private static List<Future<Channel>> connectToDataNodes(Configuration conf, DFSClient client, String clientName, LocatedBlock locatedBlock, long maxBytesRcvd, long latestGS, BlockConstructionStage stage, DataChecksum summer, EventLoop eventLoop) {
    Enum<?>[] storageTypes = locatedBlock.getStorageTypes();
    DatanodeInfo[] datanodeInfos = locatedBlock.getLocations();
    boolean connectToDnViaHostname = conf.getBoolean(DFS_CLIENT_USE_DN_HOSTNAME, DFS_CLIENT_USE_DN_HOSTNAME_DEFAULT);
    int timeoutMs = conf.getInt(DFS_CLIENT_SOCKET_TIMEOUT_KEY, READ_TIMEOUT);
    ExtendedBlock blockCopy = new ExtendedBlock(locatedBlock.getBlock());
    blockCopy.setNumBytes(locatedBlock.getBlockSize());
    ClientOperationHeaderProto header = ClientOperationHeaderProto.newBuilder().setBaseHeader(BaseHeaderProto.newBuilder().setBlock(PB_HELPER.convert(blockCopy)).setToken(PB_HELPER.convert(locatedBlock.getBlockToken()))).setClientName(clientName).build();
    ChecksumProto checksumProto = DataTransferProtoUtil.toProto(summer);
    OpWriteBlockProto.Builder writeBlockProtoBuilder = OpWriteBlockProto.newBuilder().setHeader(header).setStage(OpWriteBlockProto.BlockConstructionStage.valueOf(stage.name())).setPipelineSize(1).setMinBytesRcvd(locatedBlock.getBlock().getNumBytes()).setMaxBytesRcvd(maxBytesRcvd).setLatestGenerationStamp(latestGS).setRequestedChecksum(checksumProto).setCachingStrategy(CachingStrategyProto.newBuilder().setDropBehind(true).build());
    List<Future<Channel>> futureList = new ArrayList<>(datanodeInfos.length);
    for (int i = 0; i < datanodeInfos.length; i++) {
        DatanodeInfo dnInfo = datanodeInfos[i];
        Enum<?> storageType = storageTypes[i];
        Promise<Channel> promise = eventLoop.newPromise();
        futureList.add(promise);
        String dnAddr = dnInfo.getXferAddr(connectToDnViaHostname);
        new Bootstrap().group(eventLoop).channel(NioSocketChannel.class).option(CONNECT_TIMEOUT_MILLIS, timeoutMs).handler(new ChannelInitializer<Channel>() {

            @Override
            protected void initChannel(Channel ch) throws Exception {
            // we need to get the remote address of the channel so we can only move on after
            // channel connected. Leave an empty implementation here because netty does not allow
            // a null handler.
            }
        }).connect(NetUtils.createSocketAddr(dnAddr)).addListener(new ChannelFutureListener() {

            @Override
            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    initialize(conf, future.channel(), dnInfo, storageType, writeBlockProtoBuilder, timeoutMs, client, locatedBlock.getBlockToken(), promise);
                } else {
                    promise.tryFailure(future.cause());
                }
            }
        });
    }
    return futureList;
}

Example 22 with Bootstrap

use of io.netty.bootstrap.Bootstrap 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();
                }
            });
        }
    });
}

Example 23 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project jersey by jersey.

the class NettyConnector method apply.

@Override
public Future<?> apply(final ClientRequest jerseyRequest, final AsyncConnectorCallback jerseyCallback) {
    final CompletableFuture<Object> settableFuture = new CompletableFuture<>();
    final URI requestUri = jerseyRequest.getUri();
    String host = requestUri.getHost();
    int port = requestUri.getPort() != -1 ? requestUri.getPort() : "https".equals(requestUri.getScheme()) ? 443 : 80;
    try {
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class).handler(new ChannelInitializer<SocketChannel>() {

            @Override
            protected void initChannel(SocketChannel ch) throws Exception {
                ChannelPipeline p = ch.pipeline();
                // Enable HTTPS if necessary.
                if ("https".equals(requestUri.getScheme())) {
                    // making client authentication optional for now; it could be extracted to configurable property
                    JdkSslContext jdkSslContext = new JdkSslContext(client.getSslContext(), true, ClientAuth.NONE);
                    p.addLast(jdkSslContext.newHandler(ch.alloc()));
                }
                // http proxy
                Configuration config = jerseyRequest.getConfiguration();
                final Object proxyUri = config.getProperties().get(ClientProperties.PROXY_URI);
                if (proxyUri != null) {
                    final URI u = getProxyUri(proxyUri);
                    final String userName = ClientProperties.getValue(config.getProperties(), ClientProperties.PROXY_USERNAME, String.class);
                    final String password = ClientProperties.getValue(config.getProperties(), ClientProperties.PROXY_PASSWORD, String.class);
                    p.addLast(new HttpProxyHandler(new InetSocketAddress(u.getHost(), u.getPort() == -1 ? 8080 : u.getPort()), userName, password));
                }
                p.addLast(new HttpClientCodec());
                p.addLast(new ChunkedWriteHandler());
                p.addLast(new HttpContentDecompressor());
                p.addLast(new JerseyClientHandler(NettyConnector.this, jerseyRequest, jerseyCallback, settableFuture));
            }
        });
        // connect timeout
        Integer connectTimeout = ClientProperties.getValue(jerseyRequest.getConfiguration().getProperties(), ClientProperties.CONNECT_TIMEOUT, 0);
        if (connectTimeout > 0) {
            b.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, connectTimeout);
        }
        // Make the connection attempt.
        final Channel ch = b.connect(host, port).sync().channel();
        // guard against prematurely closed channel
        final GenericFutureListener<io.netty.util.concurrent.Future<? super Void>> closeListener = new GenericFutureListener<io.netty.util.concurrent.Future<? super Void>>() {

            @Override
            public void operationComplete(io.netty.util.concurrent.Future<? super Void> future) throws Exception {
                if (!settableFuture.isDone()) {
                    settableFuture.completeExceptionally(new IOException("Channel closed."));
                }
            }
        };
        ch.closeFuture().addListener(closeListener);
        HttpRequest nettyRequest;
        if (jerseyRequest.hasEntity()) {
            nettyRequest = new DefaultHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.valueOf(jerseyRequest.getMethod()), requestUri.getRawPath());
        } else {
            nettyRequest = new DefaultFullHttpRequest(HttpVersion.HTTP_1_1, HttpMethod.valueOf(jerseyRequest.getMethod()), requestUri.getRawPath());
        }
        // headers
        for (final Map.Entry<String, List<String>> e : jerseyRequest.getStringHeaders().entrySet()) {
            nettyRequest.headers().add(e.getKey(), e.getValue());
        }
        // host header - http 1.1
        nettyRequest.headers().add(HttpHeaderNames.HOST, jerseyRequest.getUri().getHost());
        if (jerseyRequest.hasEntity()) {
            if (jerseyRequest.getLengthLong() == -1) {
                HttpUtil.setTransferEncodingChunked(nettyRequest, true);
            } else {
                nettyRequest.headers().add(HttpHeaderNames.CONTENT_LENGTH, jerseyRequest.getLengthLong());
            }
        }
        if (jerseyRequest.hasEntity()) {
            // Send the HTTP request.
            ch.writeAndFlush(nettyRequest);
            final JerseyChunkedInput jerseyChunkedInput = new JerseyChunkedInput(ch);
            jerseyRequest.setStreamProvider(new OutboundMessageContext.StreamProvider() {

                @Override
                public OutputStream getOutputStream(int contentLength) throws IOException {
                    return jerseyChunkedInput;
                }
            });
            if (HttpUtil.isTransferEncodingChunked(nettyRequest)) {
                ch.write(new HttpChunkedInput(jerseyChunkedInput));
            } else {
                ch.write(jerseyChunkedInput);
            }
            executorService.execute(new Runnable() {

                @Override
                public void run() {
                    // close listener is not needed any more.
                    ch.closeFuture().removeListener(closeListener);
                    try {
                        jerseyRequest.writeEntity();
                    } catch (IOException e) {
                        jerseyCallback.failure(e);
                        settableFuture.completeExceptionally(e);
                    }
                }
            });
            ch.flush();
        } else {
            // close listener is not needed any more.
            ch.closeFuture().removeListener(closeListener);
            // Send the HTTP request.
            ch.writeAndFlush(nettyRequest);
        }
    } catch (InterruptedException e) {
        settableFuture.completeExceptionally(e);
        return settableFuture;
    }
    return settableFuture;
}

Example 24 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project flink by apache.

the class KvStateServerTest method testSimpleRequest.

/**
	 * Tests a simple successful query via a SocketChannel.
	 */
@Test
public void testSimpleRequest() throws Exception {
    KvStateServer server = null;
    Bootstrap bootstrap = null;
    try {
        KvStateRegistry registry = new KvStateRegistry();
        KvStateRequestStats stats = new AtomicKvStateRequestStats();
        server = new KvStateServer(InetAddress.getLocalHost(), 0, 1, 1, registry, stats);
        server.start();
        KvStateServerAddress serverAddress = server.getAddress();
        int numKeyGroups = 1;
        AbstractStateBackend abstractBackend = new MemoryStateBackend();
        DummyEnvironment dummyEnv = new DummyEnvironment("test", 1, 0);
        dummyEnv.setKvStateRegistry(registry);
        AbstractKeyedStateBackend<Integer> backend = abstractBackend.createKeyedStateBackend(dummyEnv, new JobID(), "test_op", IntSerializer.INSTANCE, numKeyGroups, new KeyGroupRange(0, 0), registry.createTaskRegistry(new JobID(), new JobVertexID()));
        final KvStateServerHandlerTest.TestRegistryListener registryListener = new KvStateServerHandlerTest.TestRegistryListener();
        registry.registerListener(registryListener);
        ValueStateDescriptor<Integer> desc = new ValueStateDescriptor<>("any", IntSerializer.INSTANCE);
        desc.setQueryable("vanilla");
        ValueState<Integer> state = backend.getPartitionedState(VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE, desc);
        // Update KvState
        int expectedValue = 712828289;
        int key = 99812822;
        backend.setCurrentKey(key);
        state.update(expectedValue);
        // Request
        byte[] serializedKeyAndNamespace = KvStateRequestSerializer.serializeKeyAndNamespace(key, IntSerializer.INSTANCE, VoidNamespace.INSTANCE, VoidNamespaceSerializer.INSTANCE);
        // Connect to the server
        final BlockingQueue<ByteBuf> responses = new LinkedBlockingQueue<>();
        bootstrap = createBootstrap(new LengthFieldBasedFrameDecoder(Integer.MAX_VALUE, 0, 4, 0, 4), new ChannelInboundHandlerAdapter() {

            @Override
            public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
                responses.add((ByteBuf) msg);
            }
        });
        Channel channel = bootstrap.connect(serverAddress.getHost(), serverAddress.getPort()).sync().channel();
        long requestId = Integer.MAX_VALUE + 182828L;
        assertTrue(registryListener.registrationName.equals("vanilla"));
        ByteBuf request = KvStateRequestSerializer.serializeKvStateRequest(channel.alloc(), requestId, registryListener.kvStateId, serializedKeyAndNamespace);
        channel.writeAndFlush(request);
        ByteBuf buf = responses.poll(TIMEOUT_MILLIS, TimeUnit.MILLISECONDS);
        assertEquals(KvStateRequestType.REQUEST_RESULT, KvStateRequestSerializer.deserializeHeader(buf));
        KvStateRequestResult response = KvStateRequestSerializer.deserializeKvStateRequestResult(buf);
        assertEquals(requestId, response.getRequestId());
        int actualValue = KvStateRequestSerializer.deserializeValue(response.getSerializedResult(), IntSerializer.INSTANCE);
        assertEquals(expectedValue, actualValue);
    } finally {
        if (server != null) {
            server.shutDown();
        }
        if (bootstrap != null) {
            EventLoopGroup group = bootstrap.group();
            if (group != null) {
                group.shutdownGracefully();
            }
        }
    }
}

Example 25 with Bootstrap

use of io.netty.bootstrap.Bootstrap in project netty by netty.

the class HttpToHttp2ConnectionHandlerTest method bootstrapEnv.

private void bootstrapEnv(int requestCountDown, int serverSettingsAckCount, int trailersCount) throws Exception {
    final CountDownLatch prefaceWrittenLatch = new CountDownLatch(1);
    final CountDownLatch serverChannelLatch = new CountDownLatch(1);
    requestLatch = new CountDownLatch(requestCountDown);
    serverSettingsAckLatch = new CountDownLatch(serverSettingsAckCount);
    trailersLatch = trailersCount == 0 ? null : new CountDownLatch(trailersCount);
    sb = new ServerBootstrap();
    cb = new Bootstrap();
    sb.group(new DefaultEventLoopGroup());
    sb.channel(LocalServerChannel.class);
    sb.childHandler(new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel ch) throws Exception {
            serverConnectedChannel = ch;
            ChannelPipeline p = ch.pipeline();
            serverFrameCountDown = new FrameCountDown(serverListener, serverSettingsAckLatch, requestLatch, null, trailersLatch);
            p.addLast(new HttpToHttp2ConnectionHandlerBuilder().server(true).frameListener(serverFrameCountDown).build());
            serverChannelLatch.countDown();
        }
    });
    cb.group(new DefaultEventLoopGroup());
    cb.channel(LocalChannel.class);
    cb.handler(new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel ch) throws Exception {
            ChannelPipeline p = ch.pipeline();
            HttpToHttp2ConnectionHandler handler = new HttpToHttp2ConnectionHandlerBuilder().server(false).frameListener(clientListener).gracefulShutdownTimeoutMillis(0).build();
            p.addLast(handler);
            p.addLast(new ChannelInboundHandlerAdapter() {

                @Override
                public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
                    if (evt instanceof Http2ConnectionPrefaceWrittenEvent) {
                        prefaceWrittenLatch.countDown();
                        ctx.pipeline().remove(this);
                    }
                }
            });
        }
    });
    serverChannel = sb.bind(new LocalAddress("HttpToHttp2ConnectionHandlerTest")).sync().channel();
    ChannelFuture ccf = cb.connect(serverChannel.localAddress());
    assertTrue(ccf.awaitUninterruptibly().isSuccess());
    clientChannel = ccf.channel();
    assertTrue(prefaceWrittenLatch.await(5, SECONDS));
    assertTrue(serverChannelLatch.await(WAIT_TIME_SECONDS, SECONDS));
}