On Fri, May 23, 2008 at 11:53 PM, Raymond Feng <[EMAIL PROTECTED]> wrote:
> Hi,
>
> It's not clear from the SCA spec how generics impacts the interface
> mapping. We need some clarifications there.
>
> The JAXWS 2.1 spec uses the erased type and only honor the type argument in
> Collection. At this moment, Tuscany supports the following case:
>
> @Remotable
> public interface MyHelloService extends HelloService<String> {
> }
>
> And use MyHelloService as the service interface for HelloServiceImpl.
Hmm... I tried this part and it does not seem to work.
SCADomain.newInstance() is throwing an exception. Stack trace given below:
org.osoa.sca.ServiceRuntimeException: org.osoa.sca.ServiceRuntimeException:
org.apache.tuscany.sca.core.assembly.ActivationException:
java.lang.NullPointerException
at
org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:276)
at
org.apache.tuscany.sca.host.embedded.SCADomain.newInstance(SCADomain.java:70)
at
org.apache.tuscany.sca.itest.DatabindingTestCase.setUp(DatabindingTestCase.java:39)
at junit.framework.TestCase.runBare(TestCase.java:132)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:232)
at junit.framework.TestSuite.run(TestSuite.java:227)
at
org.junit.internal.runners.OldTestClassRunner.run(OldTestClassRunner.java:35)
at
org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:38)
at
org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
at
org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: org.osoa.sca.ServiceRuntimeException:
org.apache.tuscany.sca.core.assembly.ActivationException:
java.lang.NullPointerException
at
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.init(DefaultSCADomain.java:239)
at
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.<init>(DefaultSCADomain.java:113)
at
org.apache.tuscany.sca.host.embedded.SCADomain.createNewInstance(SCADomain.java:242)
... 16 more
Caused by: org.apache.tuscany.sca.core.assembly.ActivationException:
java.lang.NullPointerException
at
org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.activate(CompositeActivatorImpl.java:986)
at
org.apache.tuscany.sca.host.embedded.impl.DefaultSCADomain.init(DefaultSCADomain.java:237)
... 18 more
Caused by: java.lang.NullPointerException
at
org.apache.tuscany.sca.interfacedef.wsdl.impl.WSDLOperationIntrospectorImpl.getOperation(WSDLOperationIntrospectorImpl.java:212)
at
org.apache.tuscany.sca.interfacedef.wsdl.java2wsdl.Java2WSDLHelper.createWSDLInterfaceContract(Java2WSDLHelper.java:246)
at
org.apache.tuscany.sca.binding.ws.axis2.Axis2ReferenceBindingProvider.<init>(Axis2ReferenceBindingProvider.java:56)
at
org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingProviderFactory.createReferenceBindingProvider(Axis2BindingProviderFactory.java:66)
at
org.apache.tuscany.sca.binding.ws.axis2.Axis2BindingProviderFactory.createReferenceBindingProvider(Axis2BindingProviderFactory.java:46)
at
org.apache.tuscany.sca.provider.DefaultProviderFactoryExtensionPoint$LazyBindingProviderFactory.createReferenceBindingProvider(DefaultProviderFactoryExtensionPoint.java:230)
at
org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.addReferenceBindingProvider(CompositeActivatorImpl.java:262)
at
org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.activate(CompositeActivatorImpl.java:142)
at
org.apache.tuscany.sca.core.assembly.CompositeActivatorImpl.activate(CompositeActivatorImpl.java:982)
... 19 more
>
> I don't think it's wise to try to cover other variations before we get it
> clarified by the spec.
>
> Thanks,
> Raymond
> --------------------------------------------------
> From: "Vamsavardhana Reddy" <[EMAIL PROTECTED]>
> Sent: Friday, May 23, 2008 10:42 AM
> To: <tuscany-dev@ws.apache.org>
> Subject: TransformationException when using java interface definition with
> generics
>
>
> Can someone point to me what I am doing wrong or if it is a problem in
>> Tuscany? Details follow...
>>
>> I have the following service interface:
>> @Remotable
>> public interface HelloService<E> {
>> public E getGreetings(E name);
>> }
>> --------
>> The following is the service implementation:
>> @Service(HelloService.class)
>> public class HelloServiceImpl implements HelloService<String> {
>>
>> public String getGreetings(String name) {
>> return "Hello "+name;
>> }
>> }
>> --------
>> The following is the client interface that invokes the service:
>> public interface HelloServiceClient<E> {
>> E getGreetingsForward(E name);
>> }
>> --------
>> The following is the client implementation:
>> @Service(HelloServiceClient.class)
>> public class HelloServiceClientImpl implements HelloServiceClient<String>
>> {
>>
>> private HelloService<String> service;
>>
>> @Reference
>> public void setHelloService(HelloService<String> service) {
>> this.service = service;
>> }
>>
>> public String getGreetingsForward(String name) {
>> return service.getGreetings(name);
>> }
>> }
>> --------
>> I have a HelloService component and two HelloServiceClient components in
>> my
>> composite (given below):
>> <composite xmlns="http://www.osoa.org/xmlns/sca/1.0";
>> xmlns:wsdli="http://www.w3.org/2006/01/wsdl-instance";
>> name="HelloService">
>>
>> <!-- Clients to test the service -->
>> <component name="HelloServiceClientWSComponent">
>> <implementation.java
>> class="org.apache.tuscany.sca.itest.impl.HelloServiceClientImpl" />
>> <reference name="helloService">
>> <interface.java
>> interface="org.apache.tuscany.sca.itest.HelloService"/>
>> <binding.ws uri="http://localhost:8080/hs-ep1"/>
>> </reference>
>> </component>
>> <component name="HelloServiceClientSCAComponent">
>> <implementation.java
>> class="org.apache.tuscany.sca.itest.impl.HelloServiceClientImpl" />
>> <reference name="helloService" target="HelloServiceComponent">
>> <binding.sca/>
>> </reference>
>> </component>
>>
>> <!-- Components used to implement the services -->
>> <component name="HelloServiceComponent">
>> <implementation.java
>> class="org.apache.tuscany.sca.itest.impl.HelloServiceImpl"/>
>> <service name="HelloService">
>> <interface.java
>> interface="org.apache.tuscany.sca.itest.HelloService"/>
>> <binding.ws uri="http://localhost:8080/hs-ep1"/>
>> <binding.sca/>
>> </service>
>> </component>
>> </composite>
>> --------
>> The following is the code I am using to invoke the service via client
>> components:
>> domain = SCADomain.newInstance("hello.composite");
>> String name = "Me <String> SCA";
>> HelloServiceClient<String> helloServiceClient =
>> domain.getService(HelloServiceClient.class,
>> "HelloServiceClientSCAComponent");
>> String resp = helloServiceClient.getGreetingsForward(name);
>> System.out.println(resp);
>>
>> name = "Me <String> WS";
>> helloServiceClient = domain.getService(HelloServiceClient.class,
>> "HelloServiceClientWSComponent");
>> resp = helloServiceClient.getGreetingsForward(name);
>> System.out.println(resp);
>> --------
>>
>> It works fine when I invoke the service using the client component that
>> uses
>> SCA binding to connect to the service. I get the following exception when
>> I
>> use the client component that uses WS binding.
>>
>> May 23, 2008 11:04:50 PM
>>
>> org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceInOutSyncMessageReceiver
>> invokeBusinessLogic
>> SEVERE: org.apache.tuscany.sca.databinding.TransformationException: No
>> path
>> found for the transformation: org.apache.axiom.om.OMElement->null
>> org.osoa.sca.ServiceRuntimeException:
>> org.apache.tuscany.sca.databinding.TransformationException: No path found
>> for the transformation: org.apache.axiom.om.OMElement->null
>> at
>>
>> org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:119)
>> at
>>
>> org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:85)
>> at
>>
>> org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:79)
>> at
>>
>> org.apache.tuscany.sca.core.assembly.RuntimeWireImpl.invoke(RuntimeWireImpl.java:138)
>> at
>>
>> org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceProvider.invokeTarget(Axis2ServiceProvider.java:669)
>> at
>>
>> org.apache.tuscany.sca.binding.ws.axis2.Axis2ServiceInOutSyncMessageReceiver.invokeBusinessLogic(Axis2ServiceInOutSyncMessageReceiver.java:68)
>> at
>>
>> org.apache.axis2.receivers.AbstractInOutSyncMessageReceiver.invokeBusinessLogic(AbstractInOutSyncMessageReceiver.java:42)
>> at
>>
>> org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:96)
>> at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:145)
>> at
>>
>> org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:275)
>> at
>> org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:120)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>> at
>> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
>> at
>> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
>> at
>> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
>> at
>> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
>> at
>> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
>> at org.mortbay.jetty.Server.handle(Server.java:324)
>> at
>> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
>> at
>>
>> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:842)
>> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:648)
>> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
>> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
>> at
>>
>> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
>> at org.apache.tuscany.sca.core.work.Jsr237Work.run(Jsr237Work.java:63)
>> at
>>
>> org.apache.tuscany.sca.core.work.ThreadPoolWorkManager$DecoratingWork.run(ThreadPoolWorkManager.java:221)
>> at
>>
>> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
>> at
>>
>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
>> at java.lang.Thread.run(Thread.java:595)
>> Caused by: org.apache.tuscany.sca.databinding.TransformationException: No
>> path found for the transformation: org.apache.axiom.om.OMElement->null
>> at
>>
>> org.apache.tuscany.sca.databinding.impl.MediatorImpl.getTransformerChain(MediatorImpl.java:162)
>> at
>>
>> org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:67)
>> at
>>
>> org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:181)
>> at
>>
>> org.apache.tuscany.sca.core.databinding.transformers.Input2InputTransformer.transform(Input2InputTransformer.java:45)
>> at
>>
>> org.apache.tuscany.sca.databinding.impl.MediatorImpl.mediate(MediatorImpl.java:79)
>> at
>>
>> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.transform(DataTransformationInterceptor.java:186)
>> at
>>
>> org.apache.tuscany.sca.core.databinding.wire.DataTransformationInterceptor.invoke(DataTransformationInterceptor.java:76)
>> at
>>
>> org.apache.tuscany.sca.core.invocation.RuntimeWireInvoker.invoke(RuntimeWireInvoker.java:110)
>> ... 29 more
>>
>>
