XMPP / XML Frame Decoder

["Trustin Lee (이희승)"]

Build an XML parser that works with a non-blocking input has always been
one of my interests.  All generic XML parsers out there I know of
require a blocking input (e.g. InputStream) to parse a document.  It
will be outstanding if someone embarks on this effort.

Apache Vysper team has written a preliminary implementation that at
least works for XMPP:


http://svn.apache.org/repos/asf/mina/sandbox/vysper/trunk/nbxml/src/main/java/org/apache/vysper/

It uses MINA IoBuffer so you will need to convert it to use
ChannelBuffer to make it work with Netty.  The conversion should be
trivial of course.  I'd rather want to see something that simply relies
on byte[] though.

Cheers,
Trustin

mheath wrote:
> I don't have much experience with JAXB so I can't speak to it.
> 
> I'm thinking that something that could feed an instance of 
> org.xml.sax.ContentHandler would be ideal.  You could then take existing 
> XML code and plug it into Netty.  You could also use the built in Java 
> SAX parser for testing purposes.  For Netty specific apps, you would 
> just have to figure out a nice way of sending things up the pipeline.
> 
> -Mike
> 
> Nicholas Hagen [via Netty Forums and Mailing Lists] wrote:
>> I would think building something like an XML Decoder that utilizes  
>> JAXB or other similar unmarshalling/marshalling libraries into POJOs  
>> would be cool. I worry a bit about the performance over time with the  
>> scalability requirements of XMPP in all those conversions. However  
>> only having to create a POJO to manage the XMPP extensions would  
>> definitely simplify development. Just a matter of creating decoders  
>> per extension. Very cool idea.
>>
>> Nicholas Hagen
>> Z|NET Development, LLC
>> www.znetdevelopment.com/blogs
>> * sent from my iPhone *
>>
>> On Mar 12, 2010, at 11:35 AM, mheath <[hidden email] 
>> <http://n2.nabble.com/user/SendEmail.jtp?type=node&node=4723520&i=0>> 
>> wrote:
>>
>>> I too would be very interested in an XMPP codec.  I started on a  
>>> simple XMPP
>>> server just to play around with it a bit but didn't get too far.  If  
>>> we had
>>> a decent XML decoder on Netty, building an XMPP protocol handler on  
>>> top of
>>> that would be simple.
>>>
>>> -Mike
>>> --
>>> View this message in context: 
>> http://n2.nabble.com/XMPP-XML-Frame-Decoder-tp4717020p4723036.html
>>> Sent from the Netty User Group mailing list archive at Nabble.com.
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> 
> 

-- 
what we call human nature in actuality is human habit
http://gleamynode.net/


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