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-rw-r--r-- | branches/sca-java-0.99/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBExceptionHandler.java | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/branches/sca-java-0.99/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBExceptionHandler.java b/branches/sca-java-0.99/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBExceptionHandler.java new file mode 100644 index 0000000000..aa37031c04 --- /dev/null +++ b/branches/sca-java-0.99/modules/databinding-jaxb/src/main/java/org/apache/tuscany/sca/databinding/jaxb/JAXBExceptionHandler.java @@ -0,0 +1,107 @@ +/* + * 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; + } + } + +} |