Examples of org.apache.tuscany.sca.invocation.InvocationChain

Package org.apache.tuscany.sca.invocation

Examples of org.apache.tuscany.sca.invocation.InvocationChain

org.apache.tuscany.sca.invocation.InvocationChain
A wire consists of 1..n invocation chains associated with the operations of its source service contract.
Invocation chains may contain Interceptors that process invocations.
A Message is used to pass data associated with an invocation through the chain. @version $Rev: 632064 $ $Date: 2008-02-28 17:18:51 +0000 (Thu, 28 Feb 2008) $

 */
public class InvocationChainImplTestCase extends TestCase {


    public void testInsertAtEnd() throws Exception {
        Operation op = newOperation("foo");
        InvocationChain chain = new InvocationChainImpl(op, op, true);
        Interceptor inter2 = new MockInterceptor();
        Interceptor inter1 = new MockInterceptor();
        chain.addInterceptor(inter1);
        chain.addInterceptor(inter2);
        Interceptor head = (Interceptor)chain.getHeadInvoker();
        assertEquals(inter1, head);
        assertEquals(inter2, head.getNext());
        assertEquals(inter2, chain.getTailInvoker());


    }

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    }


    public void testAddByPhase() throws Exception {
        Operation op = newOperation("foo");
        InvocationChain chain = new InvocationChainImpl(op, op, false);
        Interceptor inter1 = new MockInterceptor();
        Interceptor inter2 = new MockInterceptor();
        Interceptor inter3 = new MockInterceptor();
        Interceptor inter4 = new MockInterceptor();
        chain.addInterceptor(inter3); // SERVICE
        chain.addInterceptor(Phase.IMPLEMENTATION_POLICY, inter4);
        chain.addInterceptor(Phase.SERVICE_POLICY, inter2);
        chain.addInterceptor(Phase.SERVICE_BINDING, inter1);
        Interceptor head = (Interceptor)chain.getHeadInvoker();
        assertEquals(inter1, head);
        assertEquals(inter2, inter1.getNext());
        assertEquals(inter3, inter2.getNext());
        assertEquals(inter4, inter3.getNext());
        assertEquals(inter4, chain.getTailInvoker());
    }

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    /*
     * Adds JMS specific interceptors to the binding chain
     */
    public void configureBindingChain(RuntimeWire runtimeWire) {
        
        InvocationChain bindingChain = runtimeWire.getBindingInvocationChain();
        
        // add transport interceptor
        bindingChain.addInterceptor(Phase.SERVICE_BINDING_TRANSPORT, 
                                    new TransportServiceInterceptor(jmsBinding,
                                                                    jmsResourceFactory,
                                                                    runtimeWire) );


        // add operation selector interceptor
        bindingChain.addInterceptor(operationSelectorProvider.getPhase(), 
                                    operationSelectorProvider.createInterceptor());


        // add operationProperties interceptor after operation selector
        bindingChain.addInterceptor(Phase.SERVICE_BINDING_OPERATION_SELECTOR,
                                    new OperationPropertiesInterceptor(jmsBinding, runtimeWire));


        // add callback destination interceptor after operation selector
        bindingChain.addInterceptor(Phase.SERVICE_BINDING_WIREFORMAT,
                                    new CallbackDestinationInterceptor(runtimeWire));


        // add request wire format
        bindingChain.addInterceptor(requestWireFormatProvider.getPhase(), 
                                    requestWireFormatProvider.createInterceptor());
        
        // add response wire format, but only add it if it's different from the request
        if (!jmsBinding.getRequestWireFormat().equals(jmsBinding.getResponseWireFormat())){
            bindingChain.addInterceptor(responseWireFormatProvider.getPhase(), 
                                        responseWireFormatProvider.createInterceptor());
        }
    }

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     * set up the reference binding wire with the right set of jms reference
     * interceptors
     */
    public void configureBindingChain(RuntimeWire runtimeWire) {
        
        InvocationChain bindingChain = runtimeWire.getBindingInvocationChain();
        
        // add transport interceptor
        bindingChain.addInterceptor(Phase.REFERENCE_BINDING_TRANSPORT, 
                                    new TransportReferenceInterceptor(jmsBinding,
                                                                      jmsResourceFactory,
                                                                      runtimeWire) );
        
        // add request wire format 
        bindingChain.addInterceptor(requestWireFormatProvider.getPhase(), 
                                    requestWireFormatProvider.createInterceptor());
        
        // add response wire format, but only add it if it's different from the request
        if (!jmsBinding.getRequestWireFormat().equals(jmsBinding.getResponseWireFormat())){
            bindingChain.addInterceptor(responseWireFormatProvider.getPhase(), 
                                        responseWireFormatProvider.createInterceptor());
        }
        
        // add the header processor that comes after the wire formatter but before the
        // policy interceptors
        bindingChain.addInterceptor(Phase.REFERENCE_BINDING_WIREFORMAT, 
                                    new HeaderReferenceInterceptor(jmsBinding,
                                                                   jmsResourceFactory,
                                                                   runtimeWire) );
    }

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        EndpointReference target = wire.getTarget();
        if (target != null) {
            RuntimeComponentService service = (RuntimeComponentService)target.getContract();
            if (service != null) { // not a callback wire
                SCABinding scaBinding = service.getBinding(SCABinding.class);
                InvocationChain chain =
                    service.getInvocationChain(scaBinding, wire.getSource().getInterfaceContract(), operation);
                return chain == null ? null : new SCABindingInvoker(chain);
            }
        }
        return null;

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     * Add specific http interceptor to invocation chain
     * @param runtimeWire
     */
    public void configureBindingChain(RuntimeWire runtimeWire) {


        InvocationChain bindingChain = runtimeWire.getBindingInvocationChain();


        if(osProvider != null) {
            bindingChain.addInterceptor(Phase.SERVICE_BINDING_OPERATION_SELECTOR, osProvider.createInterceptor());    
        }


        if (wfProvider != null) {
            bindingChain.addInterceptor(Phase.SERVICE_BINDING_WIREFORMAT, wfProvider.createInterceptor());
        }


    }

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    public Invoker getInvoker(Binding binding, Operation operation) {
        return getInvoker(binding, null, operation);
    }


    public Invoker getInvoker(Binding binding, InterfaceContract interfaceContract, Operation operation) {
        InvocationChain chain = getInvocationChain(binding, interfaceContract, operation);
        if (chain != null) {
            return chain.getHeadInvoker();
        } else {
            return null;
        }
    }

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        }
        return bindingInvocationChain;
    }


    public InvocationChain getInvocationChain(Operation operation) {
        InvocationChain cached = invocationChainMap.get(operation);
        if (cached == null) {
            for (InvocationChain chain : getInvocationChains()) {
                Operation op = null;
                if (wireSource.getContract() != null) {
                    // Reference chain

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                        + " is found in reference "
                        + wireSource.getComponent().getURI()
                        + "#"
                        + reference.getName());
                }
                InvocationChain chain = new InvocationChainImpl(operation, targetOperation, true);
                if (operation.isNonBlocking()) {
                    addNonBlockingInterceptor(reference, refBinding, chain);
                }
                addReferenceBindingInterceptor(reference, refBinding, chain, operation);
                chains.add(chain);
            }
            
        } else {
            // It's the service wire
            RuntimeComponentService service = (RuntimeComponentService)wireTarget.getContract();
            RuntimeComponent serviceComponent = wireTarget.getComponent();
            Binding serviceBinding = wireTarget.getBinding();
            for (Operation operation : sourceContract.getInterface().getOperations()) {
                Operation targetOperation = interfaceContractMapper.map(targetContract.getInterface(), operation);
                if (targetOperation == null) {
                    throw new ServiceRuntimeException("No matching operation for " + operation.getName()
                        + " is found in service "
                        + serviceComponent.getURI()
                        + "#"
                        + service.getName());
                }
                InvocationChain chain = new InvocationChainImpl(operation, targetOperation, false);
                if (operation.isNonBlocking()) {
                    addNonBlockingInterceptor(service, serviceBinding, chain);
                }
                addServiceBindingInterceptor(service, serviceBinding, chain, operation);
                addImplementationInterceptor(serviceComponent, service, chain, targetOperation);

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            return invokeObjectMethod(method, args);
        }
        if (wire == null) {
            throw new ServiceRuntimeException("No runtime wire is available");
        }
        InvocationChain chain = getInvocationChain(method, wire);
        if (chain == null) {
            throw new IllegalArgumentException("No matching operation is found: " + method);
        }


        Object result = invoke(chain, args, wire, source);


        Operation operation = chain.getSourceOperation();
        if (operation != null && operation.getInterface().isRemotable()) {
            List<DataType> inputTypes = operation.getInputType().getLogical();
            // Returned Holder data <T> are placed back in Holder<T>.
            for (int i = 0, size = inputTypes.size(); i < size; i++) {
                if (operation.getParameterModes().get(i) != ParameterMode.IN) {

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