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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.databinding.jaxb;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import javax.xml.namespace.QName;
import javax.xml.ws.WebFault;
import org.apache.tuscany.sca.databinding.ExceptionHandler;
import org.apache.tuscany.sca.interfacedef.DataType;
import org.apache.tuscany.sca.interfacedef.impl.DataTypeImpl;
import org.apache.tuscany.sca.interfacedef.util.XMLType;
/**
* JAXB implementation of ExceptionHandler
*
* @version $Rev$ $Date$
*/
public class JAXBExceptionHandler implements ExceptionHandler {
private static final Class[] EMPTY_CLASS_ARRAY = new Class[0];
/**
* <ul>
* <li>WrapperException(String message, FaultBean faultInfo) <br>
* A constructor where WrapperException is replaced with the name of the
* generated wrapper exception and FaultBean is replaced by the name of the
* generated fault bean.
* <li> WrapperException(String message, FaultBean faultInfo, Throwable
* cause) <br>
* A constructor whereWrapperException is replaced with the name of the
* generated wrapper exception and FaultBean is replaced by the name of the
* generated fault bean. The last argument, cause, may be used to convey
* protocol specific fault information
* </ul>
*/
public Exception createException(DataType<DataType> exceptionType, String message, Object faultInfo, Throwable cause) {
Class exceptionClass = exceptionType.getPhysical();
DataType<?> faultBeanType = exceptionType.getLogical();
Class faultBeanClass = faultBeanType.getPhysical();
try {
Constructor constructor =
exceptionClass.getConstructor(new Class[] {String.class, faultBeanClass, Throwable.class});
return (Exception)constructor.newInstance(new Object[] {message, faultInfo, cause});
} catch (Throwable e) {
throw new IllegalArgumentException(e);
}
}
public Object getFaultInfo(Exception exception) {
if (exception == null) {
return null;
}
try {
Method method = exception.getClass().getMethod("getFaultInfo", EMPTY_CLASS_ARRAY);
return method.invoke(exception, (Object[])null);
} catch (Throwable e) {
throw new IllegalArgumentException(e);
}
}
public DataType<?> getFaultType(DataType exDataType) {
Class<?> exceptionType = exDataType.getPhysical();
WebFault webFault = exceptionType.getAnnotation(WebFault.class);
if (webFault == null) {
return null;
} else {
QName element = new QName(webFault.targetNamespace(), webFault.name());
// TODO: Need to determine the fault bean class
// String faultBean = webFault.faultBean();
Class faultBeanClass = null;
try {
Method method = exceptionType.getMethod("getFaultInfo", EMPTY_CLASS_ARRAY);
faultBeanClass = method.getReturnType();
} catch (NoSuchMethodException e) {
faultBeanClass = null;
}
// The logical type of a fault is the QName of the element that the
// only part in
// the fault message references
DataType<XMLType> faultType =
new DataTypeImpl<XMLType>(JAXBDataBinding.NAME, faultBeanClass, new XMLType(element, null));
// faultType.setMetadata(ElementInfo.class.getName(), new
// ElementInfo(element, null));
return faultType;
}
}
}
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