Examples of org.apache.tuscany.sca.runtime.RuntimeEndpointReference

org.apache.tuscany.sca.runtime.RuntimeEndpointReference
The runtime representation of an endpoint reference @tuscany.spi.extension.asclient

            msg.setBody(mediator.copyInput(msg.getBody(), sourceOperation, targetOperation));
        }
        
        ep.getInvocationChains();
        if ( !ep.getCallbackEndpointReferences().isEmpty() ) {
            RuntimeEndpointReference asyncEPR = (RuntimeEndpointReference) ep.getCallbackEndpointReferences().get(0);
            // Place a link to the callback EPR into the message headers...
            msg.getHeaders().put("ASYNC_CALLBACK", asyncEPR );
        } 


        Message resultMsg = getNext().invoke(msg);

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    public Message invoke(Message msg) {
      // Deal with async callback
      // Ensure invocation chains are built...
      getInvocationChains();
      if ( !this.getCallbackEndpointReferences().isEmpty() ) {
        RuntimeEndpointReference asyncEPR = (RuntimeEndpointReference) this.getCallbackEndpointReferences().get(0);
        // Place a link to the callback EPR into the message headers...
        msg.getHeaders().put("ASYNC_CALLBACK", asyncEPR );
      } 
      // end of async callback handling
        return invoker.invokeBinding(msg);

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     */
    private void createAsyncServerCallback( RuntimeEndpoint endpoint, Operation operation ) {
      // Check to see if the callback already exists
      if( asyncCallbackExists( endpoint ) ) return;
      
      RuntimeEndpointReference asyncEPR = createAsyncEPR( endpoint );
      
      // Store the new callback EPR into the Endpoint
      endpoint.getCallbackEndpointReferences().add(asyncEPR);
    } // end method createAsyncServerCallback

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     * @return the EndpointReference object representing the callback
     */
    private RuntimeEndpointReference createAsyncEPR( RuntimeEndpoint endpoint ){
      CompositeContext compositeContext = endpoint.getCompositeContext();
      RuntimeAssemblyFactory assemblyFactory = getAssemblyFactory( compositeContext );
        RuntimeEndpointReference epr = (RuntimeEndpointReference)assemblyFactory.createEndpointReference();
        epr.bind( compositeContext );
        
        // Create pseudo-reference
        ComponentReference reference = assemblyFactory.createComponentReference();
      ExtensionPointRegistry registry = compositeContext.getExtensionPointRegistry();
        FactoryExtensionPoint modelFactories = registry.getExtensionPoint(FactoryExtensionPoint.class);
        JavaInterfaceFactory javaInterfaceFactory = (JavaInterfaceFactory)modelFactories.getFactory(JavaInterfaceFactory.class);
        JavaInterfaceContract interfaceContract = javaInterfaceFactory.createJavaInterfaceContract();
        try {
      interfaceContract.setInterface(javaInterfaceFactory.createJavaInterface(AsyncResponseHandler.class));
    } catch (InvalidInterfaceException e1) {
      // Nothing to do here - will not happen
    } // end try
    reference.setInterfaceContract(interfaceContract);
        String referenceName = endpoint.getService().getName() + "_asyncCallback";
        reference.setName(referenceName);
        reference.setForCallback(true);
        epr.setReference(reference);
        
        // Create a binding
    Binding binding = createMatchingBinding( endpoint.getBinding(), (RuntimeComponent)endpoint.getComponent(), reference, registry );      
    epr.setBinding(binding);
    
    // Need to establish policies here (binding has some...)
    epr.getRequiredIntents().addAll( endpoint.getRequiredIntents() );
    epr.getPolicySets().addAll( endpoint.getPolicySets() );
    String eprURI = endpoint.getComponent().getName() + "#reference-binding(" + referenceName + "/" + referenceName + ")";
    epr.setURI(eprURI);
    
    // Attach a dummy endpoint to the epr
    RuntimeEndpoint ep = (RuntimeEndpoint)assemblyFactory.createEndpoint();
    ep.setUnresolved(false);
    epr.setTargetEndpoint(ep);
    //epr.setStatus(EndpointReference.Status.RESOLVED_BINDING);
    epr.setStatus(EndpointReference.Status.WIRED_TARGET_FOUND_AND_MATCHED);
    epr.setUnresolved(false);
        
      return epr;
    } // end method RuntimeEndpointReference

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     * @param service
     * @return
     */
    public <B> ServiceReference<B> createSelfReference(Class<B> businessInterface, ComponentService service) {
        try {
            RuntimeEndpointReference ref =
                (RuntimeEndpointReference)createEndpointReference(component, service, null, businessInterface);
            ref.setComponent(component);
            return getServiceReference(businessInterface, ref);
        } catch (IllegalArgumentException iae) {
          throw iae;
        } catch (Exception e) {
            throw new ServiceRuntimeException(e);

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        try {
            if (businessInterface == null) {
                InterfaceContract contract = endpoint.getComponentTypeServiceInterfaceContract();
                businessInterface = (Class<B>)((JavaInterface)contract.getInterface()).getJavaClass();
            }
            RuntimeEndpointReference ref =
                (RuntimeEndpointReference)createEndpointReference(endpoint, businessInterface);
            ref.setComponent(component);
            return new ServiceReferenceImpl<B>(businessInterface, ref, compositeContext);
        } catch (IllegalArgumentException iae) {
          throw iae;
        } catch (Exception e) {
            throw new ServiceRuntimeException(e);

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                  if (ref.getMultiplicity() == Multiplicity.ZERO_ONE)
                    throw new IllegalArgumentException("Reference " + referenceName + " is not a valid argument for getServiceReferences because it has a multiplicity of 0..1");
                    
                    ArrayList<ServiceReference<B>> serviceRefs = new ArrayList<ServiceReference<B>>();
                    for (EndpointReference endpointReference : ref.getEndpointReferences()) {
                        RuntimeEndpointReference epr = (RuntimeEndpointReference)endpointReference;
                        serviceRefs.add(getServiceReference(businessInterface, epr));
                    }
                    return serviceRefs;
                }
            }

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        if (source == null) {
            throw new ServiceRuntimeException("No runtime source is available");
        }
        
        if (source instanceof RuntimeEndpointReference) {
            RuntimeEndpointReference epr = (RuntimeEndpointReference)source;
            if (epr.isOutOfDate()) {
                epr.rebuild();
                chains.clear();
            }
        }
        
        InvocationChain chain = getInvocationChain(method, source);

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            if (logger.isLoggable(Level.FINE)) {
                logger.fine("Stopping component reference: " + component.getURI() + "#" + reference.getName());
            }


            for (EndpointReference endpointReference : reference.getEndpointReferences()) {
                RuntimeEndpointReference epr = (RuntimeEndpointReference) endpointReference;
                stop(epr);
            }
        }
        Implementation implementation = component.getImplementation();
        if (implementation instanceof Composite) {

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        if (logger.isLoggable(Level.FINE)) {
            logger.fine("Stopping component reference: " + component.getURI() + "#" + reference.getName());
        }
        RuntimeComponentReference runtimeRef = ((RuntimeComponentReference)reference);
        for ( EndpointReference endpointReference : runtimeRef.getEndpointReferences()){
            RuntimeEndpointReference epr = (RuntimeEndpointReference) endpointReference;
            stop(epr);
        }
    }

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