1 files changed, 112 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java b/sca-java-2.x/tags/2.0.1-RC1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java
new file mode 100644
index 0000000000..f0e4a0fa10
--- /dev/null
+++ b/sca-java-2.x/tags/2.0.1-RC1/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java
@@ -0,0 +1,112 @@
+/*
+ * 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.core.databinding.transformers;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.databinding.Mediator;
+import org.apache.tuscany.sca.databinding.PullTransformer;
+import org.apache.tuscany.sca.databinding.TransformationContext;
+import org.apache.tuscany.sca.databinding.BaseTransformer;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.FaultExceptionMapper;
+import static org.apache.tuscany.sca.interfacedef.Operation.IDL_FAULT;
+
+/**
+ * This is a special transformer to transform the exception from one IDL to the
+ * other one
+ *
+ * @version $Rev$ $Date$
+ */
+public class Exception2ExceptionTransformer extends BaseTransformer<Throwable, Throwable> implements
+    PullTransformer<Throwable, Throwable> {
+
+    protected Mediator mediator;
+    protected FaultExceptionMapper faultExceptionMapper;
+
+    public Exception2ExceptionTransformer(ExtensionPointRegistry registry) {
+        super();
+        UtilityExtensionPoint utilityExtensionPoint = registry.getExtensionPoint(UtilityExtensionPoint.class);
+        this.mediator = utilityExtensionPoint.getUtility(Mediator.class);
+        this.faultExceptionMapper = utilityExtensionPoint.getUtility(FaultExceptionMapper.class);
+    }
+    
+    protected Exception2ExceptionTransformer(Mediator mediator, FaultExceptionMapper faultExceptionMapper) {
+        super();
+        this.mediator = mediator;
+        this.faultExceptionMapper = faultExceptionMapper;
+    }
+
+    @Override
+    public String getSourceDataBinding() {
+        return IDL_FAULT;
+    }
+
+    @Override
+    public String getTargetDataBinding() {
+        return IDL_FAULT;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.BaseTransformer#getSourceType()
+     */
+    @Override
+    protected Class<Throwable> getSourceType() {
+        return Throwable.class;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.BaseTransformer#getTargetType()
+     */
+    @Override
+    protected Class<Throwable> getTargetType() {
+        return Throwable.class;
+    }
+
+    /**
+     * @see org.apache.tuscany.sca.databinding.Transformer#getWeight()
+     */
+    @Override
+    public int getWeight() {
+        return 10000;
+    }
+
+    @SuppressWarnings("unchecked")
+    public Throwable transform(Throwable source, TransformationContext context) {
+        DataType<DataType> sourceType = context.getSourceDataType();
+
+        DataType<DataType> targetType = context.getTargetDataType();
+
+        Object sourceFaultInfo = faultExceptionMapper.getFaultInfo(source, sourceType.getLogical().getPhysical(), context.getSourceOperation());
+        Object targetFaultInfo =
+            mediator.mediate(sourceFaultInfo, sourceType.getLogical(), targetType.getLogical(), context.getMetadata());
+
+        Throwable targetException =
+            faultExceptionMapper.wrapFaultInfo(targetType, source.getMessage(), targetFaultInfo, source.getCause(), context.getTargetOperation());
+
+        // FIXME
+        return targetException == null ? source : targetException;
+
+    }
+
+    public void setFaultExceptionMapper(FaultExceptionMapper faultExceptionMapper) {
+        this.faultExceptionMapper = faultExceptionMapper;
+    }
+}