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From "keith chapman" <>
Subject Re: [AXIS2] Should JSON messages be considered as REST?
Date Sat, 20 Sep 2008 02:04:40 GMT
Let me describe the problem in more detail. As of now Axis2 enables you to
plug in various message types by registering them in the axis2.xml. Some of
these message types will be SOAP based (like text/xml and
application/soap+xml) while others are not. And in the latter case when a
exception occurs somewhere in the pipe we do not want to throw the fault as
a SOAP message. What we do in the REST case of of now is that  we take the
fault element in the SOAP body (If not found the first child of the SOAP
body) and write that out as the fault. As of now Axis2 treats a few message
Types as REST specifically application/xml, multipart/form-data and
application/x-www-form-urlencoded. But with the pluggable message types in
place this may not work that well. Assume that someone want to to plug in
application/foo and that this message type is REST how are we gonna handle

Should we consider adding a attribute to the
messageBuilders/messageFormatters section to indicate weather its REST or


On Sat, Sep 20, 2008 at 3:22 AM, Sanjiva Weerawarana

>  +1 .. but I'm a bit confused. I assume by "REST" you meant that the
> response has media type text/xml instead of application/soap+xml, right?
> If we think about it that way, can we get rid of the "isDoingREST" flag??
> (I've hated that from day 1 and haven't had a chance to really dig thru it
> and figure out how to get rid of. Maybe this is an opportunity to get it
> right ..)
> Sanjiva.
> keith chapman wrote:
> Any input on this would be appreciated.
> Thanks,
> Keith.
> On Thu, Sep 4, 2008 at 8:40 AM, keith chapman <>wrote:
>> Hi devs,
>> This idea came up because of the following scenario.
>> Currently the logic for creating a AxisFault  for a fault received lies in
>> (lines 507 - 530). This works perfectly
>> when the received fault is SOAP or REST. But it does not work as expected
>> when the response is JSON ( rather a exception is thrown saying "The
>> MessageContext does not have an associated SOAPFault."). The reason is the
>> logic we use to build the AxisFault. If the fault message is not a SOAP
>> message we check for the flag messageContext.isDoingREST() and get the first
>> element of the SOAPBody as the fault message.
>> When the fault message is JSON its neither SOAP and the
>> messageContext.isDoingREST() returns false. Should we consider  JSON
>> messages as REST messages? I believe so.
>> WDYT?
>> Thanks,
>> Keith.
>> --
>> Keith Chapman
>> Senior Software Engineer
>> WSO2 Inc.
>> Oxygenating the Web Service Platform.
>> blog:
> --
> Keith Chapman
> Senior Software Engineer
> WSO2 Inc.
> Oxygenating the Web Service Platform.
> blog:
> --
> Sanjiva Weerawarana, Ph.D.
> Founder & Director; Lanka Software Foundation;
> Founder, Chairman & CEO; WSO2, Inc.;
> Member; Apache Software Foundation;
> Visiting Lecturer; University of Moratuwa;
> Blog:
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Keith Chapman
Senior Software Engineer
WSO2 Inc.
Oxygenating the Web Service Platform.


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