| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.tuscany.sca.binding.sca.provider; |
| |
| import org.apache.tuscany.sca.databinding.Mediator; |
| import org.apache.tuscany.sca.interfacedef.Operation; |
| import org.apache.tuscany.sca.invocation.Interceptor; |
| import org.apache.tuscany.sca.invocation.InvocationChain; |
| import org.apache.tuscany.sca.invocation.Invoker; |
| import org.apache.tuscany.sca.invocation.Message; |
| import org.apache.tuscany.sca.invocation.Phase; |
| import org.apache.tuscany.sca.runtime.RuntimeEndpoint; |
| import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; |
| |
| /** |
| * @version $Rev$ $Date$ |
| */ |
| public class SCABindingInvoker implements Interceptor { |
| private InvocationChain chain; |
| private Mediator mediator; |
| private Operation sourceOperation; |
| private Operation targetOperation; |
| private boolean passByValue; |
| private RuntimeEndpointReference epr; |
| private RuntimeEndpoint ep; |
| |
| /** |
| * Construct a SCABindingInvoker that delegates to the service invocaiton chain |
| */ |
| public SCABindingInvoker(InvocationChain chain, Operation sourceOperation, Mediator mediator, boolean passByValue, RuntimeEndpointReference epr) { |
| super(); |
| this.chain = chain; |
| this.mediator = mediator; |
| this.sourceOperation = sourceOperation; |
| this.targetOperation = chain.getTargetOperation(); |
| this.passByValue = passByValue; |
| this.epr = epr; |
| this.ep = (RuntimeEndpoint)epr.getTargetEndpoint(); |
| } |
| |
| /** |
| * @see org.apache.tuscany.sca.invocation.Interceptor#getNext() |
| */ |
| public Invoker getNext() { |
| return chain.getHeadInvoker(Phase.SERVICE_POLICY); |
| } |
| |
| /** |
| * @see org.apache.tuscany.sca.invocation.Interceptor#setNext(org.apache.tuscany.sca.invocation.Invoker) |
| */ |
| public void setNext(Invoker next) { |
| // NOOP |
| } |
| |
| /** |
| * @see org.apache.tuscany.sca.invocation.Invoker#invoke(org.apache.tuscany.sca.invocation.Message) |
| */ |
| public Message invoke(Message msg) { |
| |
| if (passByValue) { |
| 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); |
| |
| if (passByValue) { |
| // Note source and target operation swapped so result is in source class loader |
| if (resultMsg.isFault()) { |
| resultMsg.setFaultBody(mediator.copyFault(resultMsg.getBody(), sourceOperation, targetOperation)); |
| } else { |
| if (sourceOperation.getOutputType() != null) { |
| resultMsg.setBody(mediator.copyOutput(resultMsg.getBody(), sourceOperation, targetOperation)); |
| } |
| } |
| } |
| |
| return resultMsg; |
| } |
| |
| } |