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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.corba.provider.service;
import java.lang.annotation.Annotation;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.tuscany.sca.binding.corba.provider.exceptions.RequestConfigurationException;
import org.apache.tuscany.sca.binding.corba.provider.types.TypeTree;
import org.apache.tuscany.sca.binding.corba.provider.types.TypeTreeCreator;
import org.apache.tuscany.sca.binding.corba.provider.util.OperationMapper;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.Interface;
import org.apache.tuscany.sca.interfacedef.Operation;
import org.apache.tuscany.sca.runtime.Invocable;
import org.apache.tuscany.sca.runtime.RuntimeEndpoint;
/**
* @version $Rev$ $Date$
* Invocation proxy for SCA components
*/
public class ComponentInvocationProxy implements InvocationProxy {
private Invocable wire;
private Map<Method, Operation> methodOperationMapping;
private Map<Operation, Method> operationMethodMapping;
private Map<String, Method> operationsMap;
private Map<Operation, OperationTypes> operationsCache = new HashMap<Operation, OperationTypes>();
public ComponentInvocationProxy(RuntimeEndpoint wire, Class javaClass)
throws RequestConfigurationException {
this.wire = wire;
Interface interfaze = wire.getComponentTypeServiceInterfaceContract().getInterface();
operationsMap = OperationMapper.mapOperationNameToMethod(javaClass);
operationMethodMapping = OperationMapper.mapOperationToMethod(interfaze.getOperations(), javaClass);
methodOperationMapping = OperationMapper.mapMethodToOperation(interfaze.getOperations(), javaClass);
cacheOperationTypes(interfaze.getOperations());
}
/**
* Caches TypeTree for every operation in backed component
*
* @param operations
* @throws RequestConfigurationException
*/
private void cacheOperationTypes(List<Operation> operations) throws RequestConfigurationException {
for (Operation operation : operations) {
try {
OperationTypes operationTypes = new OperationTypes();
List<TypeTree> inputInstances = new ArrayList<TypeTree>();
// cache output type tree
if (operation.getOutputType() != null) {
// Should only be one output, since this was created when we only supported one output.
DataType returnType = operation.getOutputType().getLogical().get(0);
Class<?> returnClass = returnType.getPhysical();
if (returnClass != null && !returnClass.equals(void.class)) {
Annotation[] notes = operationMethodMapping.get(operation).getAnnotations();
TypeTree outputType =
TypeTreeCreator.createTypeTree(returnClass, notes);
operationTypes.setOutputType(outputType);
}
}
// cache input types trees
if (operation.getInputType() != null) {
Method method = operationMethodMapping.get(operation);
Annotation[][] notes = method.getParameterAnnotations();
int i = 0;
for (DataType<List<DataType<?>>> type : operation.getInputType().getLogical()) {
Class<?> forClass = type.getPhysical();
TypeTree inputType = TypeTreeCreator.createTypeTree(forClass, notes[i]);
inputInstances.add(inputType);
i++;
}
}
operationTypes.setInputType(inputInstances);
operationsCache.put(operation, operationTypes);
} catch (RequestConfigurationException e) {
throw e;
}
}
}
private Operation getOperation4Name(String operationName) {
Method method = operationsMap.get(operationName);
return methodOperationMapping.get(method);
}
public OperationTypes getOperationTypes(String operationName) {
return operationsCache.get(getOperation4Name(operationName));
}
public Object invoke(String operationName, List<Object> arguments) throws InvocationException {
Object result = null;
try {
result = wire.invoke(getOperation4Name(operationName), arguments.toArray());
} catch (InvocationTargetException e) {
InvocationException exception = new InvocationException(e.getCause());
throw exception;
}
return result;
}
}
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