[undertow-dev] Retrieving request entity

[Vladimir Tsukur]

Thanks for explaining the option with getRequestChannel! Got it working by
reading content into a pre-allocated ByteBuffer.

if it returns 0 register a read listener and call resumeReads()


One thing I don't fully understand though is your note about registering a
read listener (+ calling resumeReads) and why this is needed. Is it a
mandatory step, and if it is, are you referring to application-specific
read listener or Undertow's
io.undertow.server.protocol.http.HttpReadListener? I guess this is pretty
basic question, so it would be great if you can just point me to the right
place at documentation, so that I can figure it out.

Thinking about it we probably just need some way to buffer a
> complete/partial message and then invoke a callback with the data.


Yep, I guess this would be easier for the app developer to use.


On Mon, Aug 18, 2014 at 2:34 AM, Stuart Douglas <sdouglas at redhat.com> wrote:

> You can use the getRequestChannel() method to get the request channel.
> Basically call read() on the channel till it returns either 0 or -1, if it
> returns -1 you are done, if it returns 0 register a read listener and call
> resumeReads().
>
> I have always been meaning to add a nicer non-blocking API for this, but I
> have never been exactly sure what would be required here. Thinking about it
> we probably just need some way to buffer a complete/partial message and
> then invoke a callback with the data.
>
> Stuart
>
> Vladimir Tsukur wrote:
>
>> One of the ways to obtain request entity is to call
>> HttpServerExchange.startBlocking and then read content from the
>> HttpServerExchange.getInputStream.
>>
>> Is there a way to obtain request entity in a non-blocking way?
>>
>> --
>> Vladimir Tsukur
>> Software Architect, Design Engineer and Scrum Master
>>
>> _______________________________________________
>> undertow-dev mailing list
>> undertow-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/undertow-dev
>>
>


-- 
Vladimir Tsukur
Software Architect, Design Engineer and Scrum Master
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