Service side callback binding configuration

[Raymond Feng]

Hi,

I'm playing with itest-callback-basic-ws with different ways to specify 
<callback> for the service element. The following are what I found:

<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200912";
        targetNamespace="http://callback";
        name="CallBackBasicTest">
              
    <component name="CallBackBasicClient">
                <implementation.java 
class="org.apache.tuscany.sca.test.CallBackBasicClientImpl"/>
                <reference name="aCallBackService" 
target="CallBackBasicService">
                    <callback>
                      <binding.ws uri="http://localhost:8084/aCallBackService"/>
                    </callback>
                </reference>
    </component> 
    
    <component name="CallBackBasicService">
      <implementation.java 
class="org.apache.tuscany.sca.test.CallBackBasicServiceImpl"/>
      <service name="CallBackBasicService">
         <binding.ws uri="http://localhost:8085/CallBackBasicService"/>
         <!-- callback -->
      </service>
    </component>  
  
</composite>

1) It works without callback element. From the debugger, it seems that we use 
the <binding.sca> to call back. Should we use the reference side callback 
binding instead?

2) empty callback/binding.ws doesn't work: (the callback binding uri is null, 
not trying to bind to the uri from the reference side callback binding). This 
used to work in 1.x.

<callback>
        <binding.ws/>
</callback>

3) callback/binding.ws with explicit URI works:

<callback>
      <binding.ws uri="http://localhost:8084/aCallBackService"/>
 </callback> 

What's the right expectation here? 

Thanks,
Raymond

________________________________________________________________ 
Raymond Feng
rf...@apache.org
Apache Tuscany PMC member and committer: tuscany.apache.org
Co-author of Tuscany SCA In Action book: www.tuscanyinaction.com
Personal Web Site: www.enjoyjava.com
________________________________________________________________