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https://issues.apache.org/jira/browse/TUSCANY-3458?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12830315#action_12830315
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Simon Nash commented on TUSCANY-3458:
-------------------------------------
The composite definitions don't seem to be quite correct. The callback binding
on the service side shouldn't have a callback address, because this will be
provided at runtime by the client when it makes the forward call. Also, the
namespaces on the server and client are different (200903 and 200912). For the
M4 release, I think the definitions should be as follows:
server.composite:
---------------------------
<?xml version="1.0" encoding="UTF-8"?>
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200903";
targetNamespace="http://sample"; name="Calculator">
<component name="CallBackBasicService">
<implementation.java
class="org.apache.tuscany.sca.test.CallBackBasicServiceImpl"/>
<service name="CallBackBasicService">
<binding.ws uri="http://localhost:8086/CallBackBasicService"/>
<callback>
<binding.ws/>
</callback>
</service>
</component>
</composite>
--------------
client.composite:
--------------------------
<?xml version="1.0" encoding="UTF-8"?>
<composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200903";
targetNamespace="http://callback"; name="CallBackBasicTest">
<component name="CallBackBasicClient">
<implementation.java
class="org.apache.tuscany.sca.test.CallBackBasicClientImpl"/>
<reference name="aCallBackService">
<binding.ws uri="http://localhost:8086/CallBackBasicService"/>
<callback>
<binding.ws uri="http://localhost:8084/aCallBackService"/>
</callback>
</reference>
</component>
</composite>
> Support for Callbacks in TUSCANY 2.x
> ------------------------------------
>
> Key: TUSCANY-3458
> URL: https://issues.apache.org/jira/browse/TUSCANY-3458
> Project: Tuscany
> Issue Type: Bug
> Components: Java SCA Axis Binding Extension
> Affects Versions: Java-SCA-2.0-M4
> Environment: java 5 + Tuscany 2.0 M4
> Reporter: Anil GVN
> Priority: Critical
>
> Hi,
> When I am trying to run callback web service test (callback-basic-ws), it
> works. What I have observed is that in this test case, both client & server
> are in the same composite.
> Then I tried to separate them out into 2 different composites. This gave me
> the following exception at the server side:
> Caused by: org.oasisopen.sca.ServiceRuntimeException: No callback wire found
> at
> org.apache.tuscany.sca.core.invocation.impl.JDKCallbackInvocationHandler.invoke(JDKCallbackInvocationHandler.java:59)
> at $Proxy23.callBackMessage(Unknown Source)
> at
> org.apache.tuscany.sca.test.CallBackBasicServiceImpl.knockKnock(CallBackBasicServiceImpl.java:33)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:585)
> at
> org.apache.tuscany.sca.implementation.java.invocation.JavaImplementationInvoker.invoke(JavaImplementationInvoker.java:135)
> at
> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:72)
> at
> org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:126)
> ... 29 more
> (( I tried to provide callback in my server composite also. ))
> There is another application that I wrote myself which sort of replicates the
> same scenario where in I found that I am getting a NullPointerException when
> trying to access the @Callback annotated variable in my serviceImpl.
> This raised the following question in my mind. Is the Callback mechanism
> fully supported on all bindings?
> Or is it that there needs to be some extra information provided in my
> server.composite file (which I don't think is the case), in case of
> ws-binding? May be I am missing something somewhere!
> The composite files on the server & client sides look as follows:
>
> server.composite:
> ---------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <composite xmlns="http://docs.oasis-open.org/ns/opencsa/sca/200903";
> targetNamespace="http://sample"; name="Calculator">
> <component name="CallBackBasicService">
> <implementation.java
> class="org.apache.tuscany.sca.test.CallBackBasicServiceImpl"/>
> <service name="CallBackBasicService">
> <binding.ws uri="http://localhost:8086/CallBackBasicService"/>
> <callback>
> <binding.ws uri="http://localhost:8084/aCallBackService"/>
> </callback>
> </service>
> </component>
> </composite>
> --------------
> client.composite:
> --------------------------
> <?xml version="1.0" encoding="UTF-8"?>
> <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">
> <binding.ws uri="http://localhost:8086/CallBackBasicService"/>
> <callback>
> <binding.ws uri="http://localhost:8084/aCallBackService"/>
> </callback>
> </reference>
> </component>
> </composite>
> Thanks & Regards,
> Anil
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