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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.sdo;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+import javax.xml.namespace.QName;
+
+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;
+
+import commonj.sdo.Type;
+import commonj.sdo.helper.HelperContext;
+import commonj.sdo.impl.HelperProvider;
+
+/**
+ * SDO implementation of ExceptionHandler
+ *
+ * @version $Rev$ $Date$
+ */
+public class SDOExceptionHandler implements ExceptionHandler {
+ private static final Class[] EMPTY_CLASS_ARRAY = new Class[0];
+
+ // FIXME: Need a way to pass in the HelperContext
+ private HelperContext helperContext = HelperProvider.getDefaultContext();
+
+ /**
+ * <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 = (Class)exceptionType.getPhysical();
+ DataType<?> faultBeanType = exceptionType.getLogical();
+ Class faultBeanClass = (Class)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 exceptionDataType) {
+ Class exceptionType = (Class) exceptionDataType.getPhysical();
+ Class faultBeanClass = null;
+ try {
+ Method method = exceptionType.getMethod("getFaultInfo", EMPTY_CLASS_ARRAY);
+ faultBeanClass = method.getReturnType();
+ } catch (NoSuchMethodException e) {
+ faultBeanClass = null;
+ }
+ if (faultBeanClass == null) {
+ return null;
+ }
+
+ QName faultElement = null;
+ try {
+ Field field = exceptionType.getField("FAULT_ELEMENT");
+ faultElement = (QName)field.get(null);
+ } catch (NoSuchFieldException e) {
+ // Fall back to type inspection
+ Type type = helperContext.getTypeHelper().getType(faultBeanClass);
+ if (type != null) {
+ String ns = type.getURI();
+ String name = helperContext.getXSDHelper().getLocalName(type);
+ faultElement = new QName(ns, name);
+ }
+ } catch (Throwable e) {
+ // Ignore
+ }
+ if (faultElement == null) {
+ return null;
+ }
+ DataType<XMLType> faultType =
+ new DataTypeImpl<XMLType>(SDODataBinding.NAME, faultBeanClass, new XMLType(faultElement, null));
+ return faultType;
+
+ }
+
+}