Http2FrameCodec() — netty Function Reference

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/Http2FrameCodecBuilder.java lines 209–238

    @Override
    public Http2FrameCodec build() {
        Http2FrameWriter frameWriter = this.frameWriter;
        if (frameWriter != null) {
            // This is to support our tests and will never be executed by the user as frameWriter(...)
            // is package-private.
            DefaultHttp2Connection connection = new DefaultHttp2Connection(isServer(), maxReservedStreams());
            Long maxHeaderListSize = initialSettings().maxHeaderListSize();
            Http2FrameReader frameReader = new DefaultHttp2FrameReader(maxHeaderListSize == null ?
                    new DefaultHttp2HeadersDecoder(isValidateHeaders()) :
                    new DefaultHttp2HeadersDecoder(isValidateHeaders(), maxHeaderListSize));

            if (frameLogger() != null) {
                frameWriter = new Http2OutboundFrameLogger(frameWriter, frameLogger());
                frameReader = new Http2InboundFrameLogger(frameReader, frameLogger());
            }
            Http2ConnectionEncoder encoder = new DefaultHttp2ConnectionEncoder(connection, frameWriter);
            if (encoderEnforceMaxConcurrentStreams()) {
                encoder = new StreamBufferingEncoder(encoder);
            }
            Http2ConnectionDecoder decoder = new DefaultHttp2ConnectionDecoder(connection, encoder, frameReader,
                    promisedRequestVerifier(), isAutoAckSettingsFrame(), isAutoAckPingFrame(), isValidateHeaders());
            int maxConsecutiveEmptyDataFrames = decoderEnforceMaxConsecutiveEmptyDataFrames();
            if (maxConsecutiveEmptyDataFrames > 0) {
                decoder = new Http2EmptyDataFrameConnectionDecoder(decoder, maxConsecutiveEmptyDataFrames);
            }
            return build(decoder, encoder, initialSettings());
        }
        return super.build();
    }