[undertow-dev] Fwd: Undertow Gzip Content-Encoding with Chuncked Transfer-Encoding

[Antoine Girard]

Dear Undertow devs,

I originally posted the below question on the Wildfly forum and was advised
to do it here instead.

I am using the Undertow EncodingHandler with a Gzip Encoding provider, as
follows (sample code taken from an Undertow unit test):



   1. final EncodingHandler handler =
   2.     new EncodingHandler(new ContentEncodingRepository()
   3.       .addEncodingHandler("gzip",
   4.           new GzipEncodingProvider(), 50,
   5.           Predicates.parse("max-content-size[5]")))
   6.       .setNext(path);



It works fine for very small response bodies, however, when Undertow starts
to use the Chunked Transfer-Encoding, the Gzip compression is simply
ignored.

My question is basically: how to apply a Gzip encoding (or other
compression) before Undertow starts chunking the response?


Could it be a bug?


Also, and I could not really track it down from the source code, how does
Undertow decide to start chunking the response?


Thanks in advance!


Cheers,

Antoine
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