Example usage for io.netty.handler.codec.http2 Http2ConnectionAdapter Http2ConnectionAdapter

Introduction

In this page you can find the example usage for io.netty.handler.codec.http2 Http2ConnectionAdapter Http2ConnectionAdapter.

Prototype

Http2ConnectionAdapter

Source Link

Usage

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

License:Apache License

private NettyClientHandler(Http2ConnectionDecoder decoder, StreamBufferingEncoder encoder,
        Http2Settings settings, ClientTransportLifecycleManager lifecycleManager,
        KeepAliveManager keepAliveManager, Supplier<Stopwatch> stopwatchFactory,
        final Runnable tooManyPingsRunnable, TransportTracer transportTracer, Attributes eagAttributes,
        String authority) {/*  w  w w. j a  va  2  s . c o  m*/
    super(/* channelUnused= */ null, decoder, encoder, settings);
    this.lifecycleManager = lifecycleManager;
    this.keepAliveManager = keepAliveManager;
    this.stopwatchFactory = stopwatchFactory;
    this.transportTracer = Preconditions.checkNotNull(transportTracer);
    this.eagAttributes = eagAttributes;
    this.authority = authority;
    this.attributes = Attributes.newBuilder().set(GrpcAttributes.ATTR_CLIENT_EAG_ATTRS, eagAttributes).build();

    // Set the frame listener on the decoder.
    decoder().frameListener(new FrameListener());

    Http2Connection connection = encoder.connection();
    streamKey = connection.newKey();

    connection.addListener(new Http2ConnectionAdapter() {
        @Override
        public void onGoAwayReceived(int lastStreamId, long errorCode, ByteBuf debugData) {
            byte[] debugDataBytes = ByteBufUtil.getBytes(debugData);
            goingAway(statusFromGoAway(errorCode, debugDataBytes));
            if (errorCode == Http2Error.ENHANCE_YOUR_CALM.code()) {
                String data = new String(debugDataBytes, UTF_8);
                logger.log(Level.WARNING, "Received GOAWAY with ENHANCE_YOUR_CALM. Debug data: {1}", data);
                if ("too_many_pings".equals(data)) {
                    tooManyPingsRunnable.run();
                }
            }
        }

        @Override
        public void onStreamActive(Http2Stream stream) {
            if (connection().numActiveStreams() == 1 && NettyClientHandler.this.keepAliveManager != null) {
                NettyClientHandler.this.keepAliveManager.onTransportActive();
            }
        }

        @Override
        public void onStreamClosed(Http2Stream stream) {
            // Although streams with CALL_OPTIONS_RPC_OWNED_BY_BALANCER are not marked as "in-use" in
            // the first place, we don't propagate that option here, and it's safe to reset the in-use
            // state for them, which will be a cheap no-op.
            inUseState.updateObjectInUse(stream, false);
            if (connection().numActiveStreams() == 0 && NettyClientHandler.this.keepAliveManager != null) {
                NettyClientHandler.this.keepAliveManager.onTransportIdle();
            }
        }
    });
}

---

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

License:Apache License

private NettyServerHandler(ChannelPromise channelUnused, final Http2Connection connection,
        ServerTransportListener transportListener,
        List<? extends ServerStreamTracer.Factory> streamTracerFactories, TransportTracer transportTracer,
        Http2ConnectionDecoder decoder, Http2ConnectionEncoder encoder, Http2Settings settings,
        int maxMessageSize, long keepAliveTimeInNanos, long keepAliveTimeoutInNanos,
        long maxConnectionIdleInNanos, long maxConnectionAgeInNanos, long maxConnectionAgeGraceInNanos,
        final KeepAliveEnforcer keepAliveEnforcer) {
    super(channelUnused, decoder, encoder, settings);

    final MaxConnectionIdleManager maxConnectionIdleManager;
    if (maxConnectionIdleInNanos == MAX_CONNECTION_IDLE_NANOS_DISABLED) {
        maxConnectionIdleManager = null;
    } else {/*from   w ww. j a v  a  2s  .co  m*/
        maxConnectionIdleManager = new MaxConnectionIdleManager(maxConnectionIdleInNanos) {
            @Override
            void close(ChannelHandlerContext ctx) {
                if (gracefulShutdown == null) {
                    gracefulShutdown = new GracefulShutdown("max_idle", null);
                    gracefulShutdown.start(ctx);
                    ctx.flush();
                }
            }
        };
    }

    connection.addListener(new Http2ConnectionAdapter() {
        @Override
        public void onStreamActive(Http2Stream stream) {
            if (connection.numActiveStreams() == 1) {
                keepAliveEnforcer.onTransportActive();
                if (maxConnectionIdleManager != null) {
                    maxConnectionIdleManager.onTransportActive();
                }
            }
        }

        @Override
        public void onStreamClosed(Http2Stream stream) {
            if (connection.numActiveStreams() == 0) {
                keepAliveEnforcer.onTransportIdle();
                if (maxConnectionIdleManager != null) {
                    maxConnectionIdleManager.onTransportIdle();
                }
            }
        }
    });

    checkArgument(maxMessageSize >= 0, "maxMessageSize must be >= 0");
    this.maxMessageSize = maxMessageSize;
    this.keepAliveTimeInNanos = keepAliveTimeInNanos;
    this.keepAliveTimeoutInNanos = keepAliveTimeoutInNanos;
    this.maxConnectionIdleManager = maxConnectionIdleManager;
    this.maxConnectionAgeInNanos = maxConnectionAgeInNanos;
    this.maxConnectionAgeGraceInNanos = maxConnectionAgeGraceInNanos;
    this.keepAliveEnforcer = checkNotNull(keepAliveEnforcer, "keepAliveEnforcer");

    streamKey = encoder.connection().newKey();
    this.transportListener = checkNotNull(transportListener, "transportListener");
    this.streamTracerFactories = checkNotNull(streamTracerFactories, "streamTracerFactories");
    this.transportTracer = checkNotNull(transportTracer, "transportTracer");

    // Set the frame listener on the decoder.
    decoder().frameListener(new FrameListener());
}

---