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/*
* 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.corba.impl;
import java.lang.reflect.InvocationTargetException;
import java.util.ArrayList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.xml.stream.XMLStreamException;
import org.apache.axiom.om.OMElement;
import org.apache.tuscany.sca.binding.corba.impl.exceptions.RequestConfigurationException;
import org.apache.tuscany.sca.binding.corba.impl.service.InvocationException;
import org.apache.tuscany.sca.binding.corba.impl.service.InvocationProxy;
import org.apache.tuscany.sca.binding.corba.impl.service.OperationTypes;
import org.apache.tuscany.sca.binding.corba.impl.types.TypeTree;
import org.apache.tuscany.sca.binding.corba.impl.types.TypeTreeCreator;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.interfacedef.util.FaultException;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.invocation.MessageFactory;
import org.apache.tuscany.sca.runtime.RuntimeWire;
/**
* Invocation proxy for SCA default binding over CORBA binding
*/
public class CorbaSCAInvocationProxy implements InvocationProxy {
private static final Logger logger = Logger.getLogger(CorbaSCAInvocationProxy.class.getName());
private RuntimeWire wire;
private Interface componentInterface;
private OperationTypes types = new OperationTypes();
private MessageFactory messageFactory;
public CorbaSCAInvocationProxy(RuntimeWire wire, Interface componentInterface, MessageFactory messageFactory) {
this.wire = wire;
this.componentInterface = componentInterface;
this.messageFactory = messageFactory;
try {
List<TypeTree> inputType = new ArrayList<TypeTree>();
inputType.add(TypeTreeCreator.createTypeTree(String.class, null));
types.setInputType(inputType);
types.setOutputType(TypeTreeCreator.createTypeTree(String.class, null));
} catch (RequestConfigurationException e) {
// ignore - string type should not cause this exception
}
}
public Object invoke(String operationName, List<Object> arguments) throws InvocationException {
try {
OMElement omContent = CorbaSCAInvoker.stringToOM((String)arguments.get(0));
String componentOperationName = omContent.getQName().getLocalPart();
Operation componentOperation = null;
for (Operation operation : componentInterface.getOperations()) {
if (operation.getName().equals(componentOperationName)) {
componentOperation = operation;
break;
}
}
if (componentOperation != null) {
Message msg = messageFactory.createMessage();
msg.setOperation(componentOperation);
Object[] args = new Object[1];
args[0] = omContent;
msg.setBody(args);
OMElement omResult = (OMElement)wire.invoke(componentOperation, msg);
return omResult.toStringWithConsume();
}
} catch (XMLStreamException e) {
logger.log(Level.WARNING, "XMLStreamException during handling invocation target exception", e);
} catch (InvocationTargetException e) {
OMElement omException = (OMElement)((FaultException)e.getCause()).getFaultInfo();
try {
WrappedSCAException wrappedException = new WrappedSCAException(omException.toStringWithConsume());
InvocationException exception = new InvocationException(wrappedException);
throw exception;
} catch (XMLStreamException xmle) {
logger.log(Level.WARNING, "XMLStreamException during handling invocation target exception", xmle);
}
}
return null;
}
public OperationTypes getOperationTypes(String operationName) {
// ignoring operationName - only one operation for this proxy is allowed
return types;
}
}
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