Motivation
The HttpObjectDecoder accepts input parameters for maxInitialLineLength
and maxHeaderSize. These are important variables since both message
components must be buffered in memory. As such, many decoders (like
Netty and others) introduce constraints. Due to their importance, many
users may wish to add instrumentation on the values of successful
decoder results, or otherwise be able to access these values to enforce
their own supplemental constraints.
While users can perhaps estimate the sizes today, they will not be
exact, due to the decoder being responsible for consuming optional
whitespace and the like.
Modifications
* Add HttpMessageDecoderResult class. This class extends DecoderResult
and is intended for HttpMessage objects successfully decoded by the
HttpObjectDecoder. It exposes attributes for the decoded
initialLineLength and headerSize.
* Modify HttpObjectDecoder to produce HttpMessageDecoderResults upon
successfully decoding the last HTTP header.
* Add corresponding tests to HttpRequestDecoderTest &
HttpResponseDecoderTest.
Co-authored-by: Bennett Lynch <Bennett-Lynch@users.noreply.github.com>
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