Examples with DefaultHttp2LocalFlowController io.netty.handler.codec.http2.DefaultHttp2LocalFlowController used on opensource projects

Example 1 with DefaultHttp2LocalFlowController

use of io.netty.handler.codec.http2.DefaultHttp2LocalFlowController in project grpc-java by grpc.

the class NettyServerHandler method newHandler.

@VisibleForTesting
static NettyServerHandler newHandler(Http2FrameReader frameReader, Http2FrameWriter frameWriter, ServerTransportListener transportListener, int maxStreams, int flowControlWindow, int maxHeaderListSize, int maxMessageSize) {
    Preconditions.checkArgument(maxStreams > 0, "maxStreams must be positive");
    Preconditions.checkArgument(flowControlWindow > 0, "flowControlWindow must be positive");
    Preconditions.checkArgument(maxHeaderListSize > 0, "maxHeaderListSize must be positive");
    Preconditions.checkArgument(maxMessageSize > 0, "maxMessageSize must be positive");
    Http2Connection connection = new DefaultHttp2Connection(true);
    // Create the local flow controller configured to auto-refill the connection window.
    connection.local().flowController(new DefaultHttp2LocalFlowController(connection, DEFAULT_WINDOW_UPDATE_RATIO, true));
    Http2ConnectionEncoder encoder = new DefaultHttp2ConnectionEncoder(connection, frameWriter);
    // TODO(ejona): swap back to DefaultHttp2Connection with Netty-4.1.9
    Http2ConnectionDecoder decoder = new FixedHttp2ConnectionDecoder(connection, encoder, frameReader);
    Http2Settings settings = new Http2Settings();
    settings.initialWindowSize(flowControlWindow);
    settings.maxConcurrentStreams(maxStreams);
    settings.maxHeaderListSize(maxHeaderListSize);
    return new NettyServerHandler(transportListener, decoder, encoder, settings, maxMessageSize);
}

Example 2 with DefaultHttp2LocalFlowController

use of io.netty.handler.codec.http2.DefaultHttp2LocalFlowController in project grpc-java by grpc.

the class NettyClientHandler method newHandler.

@VisibleForTesting
static NettyClientHandler newHandler(Http2Connection connection, Http2FrameReader frameReader, Http2FrameWriter frameWriter, ClientTransportLifecycleManager lifecycleManager, KeepAliveManager keepAliveManager, int flowControlWindow, int maxHeaderListSize, Ticker ticker) {
    Preconditions.checkNotNull(connection, "connection");
    Preconditions.checkNotNull(frameReader, "frameReader");
    Preconditions.checkNotNull(lifecycleManager, "lifecycleManager");
    Preconditions.checkArgument(flowControlWindow > 0, "flowControlWindow must be positive");
    Preconditions.checkArgument(maxHeaderListSize > 0, "maxHeaderListSize must be positive");
    Preconditions.checkNotNull(ticker, "ticker");
    Http2FrameLogger frameLogger = new Http2FrameLogger(LogLevel.DEBUG, NettyClientHandler.class);
    frameReader = new Http2InboundFrameLogger(frameReader, frameLogger);
    frameWriter = new Http2OutboundFrameLogger(frameWriter, frameLogger);
    StreamBufferingEncoder encoder = new StreamBufferingEncoder(new DefaultHttp2ConnectionEncoder(connection, frameWriter));
    // Create the local flow controller configured to auto-refill the connection window.
    connection.local().flowController(new DefaultHttp2LocalFlowController(connection, DEFAULT_WINDOW_UPDATE_RATIO, true));
    // TODO(ejona): swap back to DefaultHttp2Connection with Netty-4.1.9
    Http2ConnectionDecoder decoder = new FixedHttp2ConnectionDecoder(connection, encoder, frameReader);
    Http2Settings settings = new Http2Settings();
    settings.pushEnabled(false);
    settings.initialWindowSize(flowControlWindow);
    settings.maxConcurrentStreams(0);
    settings.maxHeaderListSize(maxHeaderListSize);
    return new NettyClientHandler(decoder, encoder, settings, lifecycleManager, keepAliveManager, ticker);
}

Example 3 with DefaultHttp2LocalFlowController

use of io.netty.handler.codec.http2.DefaultHttp2LocalFlowController in project netty by netty.

the class DataCompressionHttp2Test method bootstrapEnv.

private void bootstrapEnv(int serverOutSize) throws Exception {
    final CountDownLatch prefaceWrittenLatch = new CountDownLatch(1);
    serverOut = new ByteArrayOutputStream(serverOutSize);
    serverLatch = new CountDownLatch(1);
    sb = new ServerBootstrap();
    cb = new Bootstrap();
    // Streams are created before the normal flow for this test, so these connection must be initialized up front.
    serverConnection = new DefaultHttp2Connection(true);
    clientConnection = new DefaultHttp2Connection(false);
    serverConnection.addListener(new Http2ConnectionAdapter() {

        @Override
        public void onStreamClosed(Http2Stream stream) {
            serverLatch.countDown();
        }
    });
    doAnswer(new Answer<Integer>() {

        @Override
        public Integer answer(InvocationOnMock in) throws Throwable {
            ByteBuf buf = (ByteBuf) in.getArguments()[2];
            int padding = (Integer) in.getArguments()[3];
            int processedBytes = buf.readableBytes() + padding;
            buf.readBytes(serverOut, buf.readableBytes());
            if (in.getArgument(4)) {
                serverConnection.stream((Integer) in.getArgument(1)).close();
            }
            return processedBytes;
        }
    }).when(serverListener).onDataRead(any(ChannelHandlerContext.class), anyInt(), any(ByteBuf.class), anyInt(), anyBoolean());
    final CountDownLatch serverChannelLatch = new CountDownLatch(1);
    sb.group(new NioEventLoopGroup(), new NioEventLoopGroup());
    sb.channel(NioServerSocketChannel.class);
    sb.childHandler(new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel ch) throws Exception {
            serverConnectedChannel = ch;
            ChannelPipeline p = ch.pipeline();
            Http2FrameWriter frameWriter = new DefaultHttp2FrameWriter();
            serverConnection.remote().flowController(new DefaultHttp2RemoteFlowController(serverConnection));
            serverConnection.local().flowController(new DefaultHttp2LocalFlowController(serverConnection).frameWriter(frameWriter));
            Http2ConnectionEncoder encoder = new CompressorHttp2ConnectionEncoder(new DefaultHttp2ConnectionEncoder(serverConnection, frameWriter));
            Http2ConnectionDecoder decoder = new DefaultHttp2ConnectionDecoder(serverConnection, encoder, new DefaultHttp2FrameReader());
            Http2ConnectionHandler connectionHandler = new Http2ConnectionHandlerBuilder().frameListener(new DelegatingDecompressorFrameListener(serverConnection, serverListener)).codec(decoder, encoder).build();
            p.addLast(connectionHandler);
            serverChannelLatch.countDown();
        }
    });
    cb.group(new NioEventLoopGroup());
    cb.channel(NioSocketChannel.class);
    cb.handler(new ChannelInitializer<Channel>() {

        @Override
        protected void initChannel(Channel ch) throws Exception {
            ChannelPipeline p = ch.pipeline();
            Http2FrameWriter frameWriter = new DefaultHttp2FrameWriter();
            clientConnection.remote().flowController(new DefaultHttp2RemoteFlowController(clientConnection));
            clientConnection.local().flowController(new DefaultHttp2LocalFlowController(clientConnection).frameWriter(frameWriter));
            clientEncoder = new CompressorHttp2ConnectionEncoder(new DefaultHttp2ConnectionEncoder(clientConnection, frameWriter));
            Http2ConnectionDecoder decoder = new DefaultHttp2ConnectionDecoder(clientConnection, clientEncoder, new DefaultHttp2FrameReader());
            clientHandler = new Http2ConnectionHandlerBuilder().frameListener(new DelegatingDecompressorFrameListener(clientConnection, clientListener)).gracefulShutdownTimeoutMillis(0).codec(decoder, clientEncoder).build();
            p.addLast(clientHandler);
            p.addLast(new ChannelInboundHandlerAdapter() {

                public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
                    if (evt instanceof Http2ConnectionPrefaceWrittenEvent) {
                        prefaceWrittenLatch.countDown();
                        ctx.pipeline().remove(this);
                    }
                }
            });
        }
    });
    serverChannel = sb.bind(new InetSocketAddress(0)).sync().channel();
    int port = ((InetSocketAddress) serverChannel.localAddress()).getPort();
    ChannelFuture ccf = cb.connect(new InetSocketAddress(NetUtil.LOCALHOST, port));
    assertTrue(ccf.awaitUninterruptibly().isSuccess());
    clientChannel = ccf.channel();
    assertTrue(prefaceWrittenLatch.await(5, SECONDS));
    assertTrue(serverChannelLatch.await(5, SECONDS));
}