FlowControlledFrameSizeEstimator Class — netty Architecture

Source Code

codec-http2/src/main/java/io/netty/handler/codec/http2/AbstractHttp2StreamChannel.java lines 119–137

    private static final class FlowControlledFrameSizeEstimator implements MessageSizeEstimator {

        static final FlowControlledFrameSizeEstimator INSTANCE = new FlowControlledFrameSizeEstimator();

        private static final Handle HANDLE_INSTANCE = new Handle() {
            @Override
            public int size(Object msg) {
                return msg instanceof Http2DataFrame ?
                        // Guard against overflow.
                        (int) min(Integer.MAX_VALUE, ((Http2DataFrame) msg).initialFlowControlledBytes() +
                                (long) MIN_HTTP2_FRAME_SIZE) : MIN_HTTP2_FRAME_SIZE;
            }
        };

        @Override
        public Handle newHandle() {
            return HANDLE_INSTANCE;
        }
    }