Example usage for io.netty.handler.codec.http2 Http2Connection remote

Introduction

In this page you can find the example usage for io.netty.handler.codec.http2 Http2Connection remote.

Prototype

Endpoint<Http2RemoteFlowController> remote();

Source Link

Document

Gets a view of this connection from the remote Endpoint .

Usage

From source file:io.grpc.netty.NettyClientHandler.java

License:Apache License

static NettyClientHandler newHandler(ClientTransportLifecycleManager lifecycleManager,
        @Nullable KeepAliveManager keepAliveManager, int flowControlWindow, int maxHeaderListSize,
        Supplier<Stopwatch> stopwatchFactory, Runnable tooManyPingsRunnable, TransportTracer transportTracer,
        Attributes eagAttributes, String authority) {
    Preconditions.checkArgument(maxHeaderListSize > 0, "maxHeaderListSize must be positive");
    Http2HeadersDecoder headersDecoder = new GrpcHttp2ClientHeadersDecoder(maxHeaderListSize);
    Http2FrameReader frameReader = new DefaultHttp2FrameReader(headersDecoder);
    Http2FrameWriter frameWriter = new DefaultHttp2FrameWriter();
    Http2Connection connection = new DefaultHttp2Connection(false);
    WeightedFairQueueByteDistributor dist = new WeightedFairQueueByteDistributor(connection);
    dist.allocationQuantum(16 * 1024); // Make benchmarks fast again.
    DefaultHttp2RemoteFlowController controller = new DefaultHttp2RemoteFlowController(connection, dist);
    connection.remote().flowController(controller);

    return newHandler(connection, frameReader, frameWriter, lifecycleManager, keepAliveManager,
            flowControlWindow, maxHeaderListSize, stopwatchFactory, tooManyPingsRunnable, transportTracer,
            eagAttributes, authority);/*ww  w  . j a  v  a 2  s .  co  m*/
}

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From source file:io.grpc.netty.NettyClientHandler.java

License:Apache License

@VisibleForTesting
static NettyClientHandler newHandler(final Http2Connection connection, Http2FrameReader frameReader,
        Http2FrameWriter frameWriter, ClientTransportLifecycleManager lifecycleManager,
        KeepAliveManager keepAliveManager, int flowControlWindow, int maxHeaderListSize,
        Supplier<Stopwatch> stopwatchFactory, Runnable tooManyPingsRunnable, TransportTracer transportTracer,
        Attributes eagAttributes, String authority) {
    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(stopwatchFactory, "stopwatchFactory");
    Preconditions.checkNotNull(tooManyPingsRunnable, "tooManyPingsRunnable");
    Preconditions.checkNotNull(eagAttributes, "eagAttributes");
    Preconditions.checkNotNull(authority, "authority");

    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()//from  w w w  . ja v  a  2  s  . c o  m
            .flowController(new DefaultHttp2LocalFlowController(connection, DEFAULT_WINDOW_UPDATE_RATIO, true));

    Http2ConnectionDecoder decoder = new DefaultHttp2ConnectionDecoder(connection, encoder, frameReader);

    transportTracer.setFlowControlWindowReader(new TransportTracer.FlowControlReader() {
        final Http2FlowController local = connection.local().flowController();
        final Http2FlowController remote = connection.remote().flowController();

        @Override
        public TransportTracer.FlowControlWindows read() {
            return new TransportTracer.FlowControlWindows(local.windowSize(connection.connectionStream()),
                    remote.windowSize(connection.connectionStream()));
        }
    });

    Http2Settings settings = new Http2Settings();
    settings.pushEnabled(false);
    settings.initialWindowSize(flowControlWindow);
    settings.maxConcurrentStreams(0);
    settings.maxHeaderListSize(maxHeaderListSize);

    return new NettyClientHandler(decoder, encoder, settings, lifecycleManager, keepAliveManager,
            stopwatchFactory, tooManyPingsRunnable, transportTracer, eagAttributes, authority);
}

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From source file:io.grpc.netty.NettyServerHandler.java

License:Apache License

@VisibleForTesting
static NettyServerHandler newHandler(ChannelPromise channelUnused, Http2FrameReader frameReader,
        Http2FrameWriter frameWriter, ServerTransportListener transportListener,
        List<? extends ServerStreamTracer.Factory> streamTracerFactories, TransportTracer transportTracer,
        int maxStreams, int flowControlWindow, int maxHeaderListSize, int maxMessageSize,
        long keepAliveTimeInNanos, long keepAliveTimeoutInNanos, long maxConnectionIdleInNanos,
        long maxConnectionAgeInNanos, long maxConnectionAgeGraceInNanos, boolean permitKeepAliveWithoutCalls,
        long permitKeepAliveTimeInNanos) {
    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");

    final Http2Connection connection = new DefaultHttp2Connection(true);
    WeightedFairQueueByteDistributor dist = new WeightedFairQueueByteDistributor(connection);
    dist.allocationQuantum(16 * 1024); // Make benchmarks fast again.
    DefaultHttp2RemoteFlowController controller = new DefaultHttp2RemoteFlowController(connection, dist);
    connection.remote().flowController(controller);
    final KeepAliveEnforcer keepAliveEnforcer = new KeepAliveEnforcer(permitKeepAliveWithoutCalls,
            permitKeepAliveTimeInNanos, TimeUnit.NANOSECONDS);

    // Create the local flow controller configured to auto-refill the connection window.
    connection.local()/*from  www . ja va  2s. co  m*/
            .flowController(new DefaultHttp2LocalFlowController(connection, DEFAULT_WINDOW_UPDATE_RATIO, true));
    frameWriter = new WriteMonitoringFrameWriter(frameWriter, keepAliveEnforcer);
    Http2ConnectionEncoder encoder = new DefaultHttp2ConnectionEncoder(connection, frameWriter);
    encoder = new Http2ControlFrameLimitEncoder(encoder, 10000);
    Http2ConnectionDecoder decoder = new DefaultHttp2ConnectionDecoder(connection, encoder, frameReader);

    Http2Settings settings = new Http2Settings();
    settings.initialWindowSize(flowControlWindow);
    settings.maxConcurrentStreams(maxStreams);
    settings.maxHeaderListSize(maxHeaderListSize);

    return new NettyServerHandler(channelUnused, connection, transportListener, streamTracerFactories,
            transportTracer, decoder, encoder, settings, maxMessageSize, keepAliveTimeInNanos,
            keepAliveTimeoutInNanos, maxConnectionIdleInNanos, maxConnectionAgeInNanos,
            maxConnectionAgeGraceInNanos, keepAliveEnforcer);
}

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From source file:io.grpc.netty.NettyServerHandler.java

License:Apache License

@Override
public void handlerAdded(final ChannelHandlerContext ctx) throws Exception {
    serverWriteQueue = new WriteQueue(ctx.channel());

    // init max connection age monitor
    if (maxConnectionAgeInNanos != MAX_CONNECTION_AGE_NANOS_DISABLED) {
        maxConnectionAgeMonitor = ctx.executor().schedule(new LogExceptionRunnable(new Runnable() {
            @Override//w w  w  . ja  v  a2s  .co m
            public void run() {
                if (gracefulShutdown == null) {
                    gracefulShutdown = new GracefulShutdown("max_age", maxConnectionAgeGraceInNanos);
                    gracefulShutdown.start(ctx);
                    ctx.flush();
                }
            }
        }), maxConnectionAgeInNanos, TimeUnit.NANOSECONDS);
    }

    if (maxConnectionIdleManager != null) {
        maxConnectionIdleManager.start(ctx);
    }

    if (keepAliveTimeInNanos != SERVER_KEEPALIVE_TIME_NANOS_DISABLED) {
        keepAliveManager = new KeepAliveManager(new KeepAlivePinger(ctx), ctx.executor(), keepAliveTimeInNanos,
                keepAliveTimeoutInNanos, true /* keepAliveDuringTransportIdle */);
        keepAliveManager.onTransportStarted();
    }

    if (transportTracer != null) {
        assert encoder().connection().equals(decoder().connection());
        final Http2Connection connection = encoder().connection();
        transportTracer.setFlowControlWindowReader(new TransportTracer.FlowControlReader() {
            private final Http2FlowController local = connection.local().flowController();
            private final Http2FlowController remote = connection.remote().flowController();

            @Override
            public TransportTracer.FlowControlWindows read() {
                assert ctx.executor().inEventLoop();
                return new TransportTracer.FlowControlWindows(local.windowSize(connection.connectionStream()),
                        remote.windowSize(connection.connectionStream()));
            }
        });
    }

    super.handlerAdded(ctx);
}

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