anonymous operation invocation

[Ecker Severin <Se...@arcs.ac.at>]

Hi,

I think I stumbled over a bug but I wanted to check here first in case
I'm just being stupid.

I have a webservice (using axis2 to handle the soap stuff) and I wanted
to use this service with both, WSDL-based access and anonymous operation
invocation (with the ServiceClient.sendReceive(OMElement elem) method).

Using WSDL base access everything works as intended (e.g.: using the
following SOAP envelope)

<soap:Envelope
   xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
   xmlns:ns="http://myNS.com">

   <soap:Header/>
   <soap:Body>
     <ns:GetCapabilitiesRequest/>
   </soap:Body>
</soap:Envelope>

At service implementation site within the method
getCapabilities(OMElement e); (<-- this is the invoked method)

the parameter e is

<ns:GetCapabilitiesRequest/>

So far so good.

Now when trying to access anonymously I have to encode the operation
somewhere so I have the following envelope

<soap:Envelope
   xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
   xmlns:ns="http://myNS.com">

   <soap:Header/>
   <soap:Body>
     <ns:getCapabilities>
       <in0>
         <ns:GetCapabilitiesRequest/>
       </in0>
     </ns:getCapabilities>
   </soap:Body>
</soap:Envelope>

The request gets resolved correcty by axis (using the
SOAPMessageBodyBasedDispatcher) BUT here's the catch. Suddenly the
parameter which the (correct!) service operation gets is

<ns:getCapabilities>
  <in0>
    <ns:GetCapabilitiesRequest/>
  </in0>
</ns:getCapabilities>

This is rather useless because in that case the service operation must
be ready to handle all kinds of different parameters depending on the
invocation method used!? Shouldn't the SOAPMessageBodyBasedDispatcher
remove the 'meta-informational' stuff (in this case the getCapabilities
(aka operation-name), and in0 (parameter direction)) and only send the
real parameter to the operation?

If I'm mistaken, how can I invoke an operation anonymously and does not
have the problem of ending up with wrong parameters on the service side?
If I'm correct please let me know and I will file a bug report.

Many thanks in advance!

Cheers,
Severin


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