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Diffstat (limited to 'sca-java-1.x/branches/sca-java-0.99/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java')
-rw-r--r-- | sca-java-1.x/branches/sca-java-0.99/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/sca-java-1.x/branches/sca-java-0.99/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java b/sca-java-1.x/branches/sca-java-0.99/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java new file mode 100644 index 0000000000..cd71869154 --- /dev/null +++ b/sca-java-1.x/branches/sca-java-0.99/modules/core-databinding/src/main/java/org/apache/tuscany/sca/core/databinding/transformers/Exception2ExceptionTransformer.java @@ -0,0 +1,127 @@ +/* + * 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.databinding.DataBinding; +import org.apache.tuscany.sca.databinding.ExceptionHandler; +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.Transformer; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.interfacedef.DataType; +import org.osoa.sca.annotations.Reference; +import org.osoa.sca.annotations.Service; + +/** + * This is a special transformer to transform the exception from one IDL to the + * other one + */ +@Service(Transformer.class) +public class Exception2ExceptionTransformer extends BaseTransformer<Object[], Object[]> implements + PullTransformer<Exception, Exception> { + + protected Mediator mediator; + + public Exception2ExceptionTransformer() { + super(); + } + + @Override + public String getSourceDataBinding() { + return DataBinding.IDL_FAULT; + } + + @Override + public String getTargetDataBinding() { + return DataBinding.IDL_FAULT; + } + + /** + * @param mediator the mediator to set + */ + @Reference + public void setMediator(Mediator mediator) { + this.mediator = mediator; + } + + /** + * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getSourceType() + */ + @Override + protected Class getSourceType() { + return Exception.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.impl.BaseTransformer#getTargetType() + */ + @Override + protected Class getTargetType() { + return Exception.class; + } + + /** + * @see org.apache.tuscany.sca.databinding.Transformer#getWeight() + */ + @Override + public int getWeight() { + return 10000; + } + + @SuppressWarnings("unchecked") + public Exception transform(Exception source, TransformationContext context) { + DataType<DataType> sourceType = context.getSourceDataType(); + + DataType<DataType> targetType = context.getTargetDataType(); + + ExceptionHandler exceptionHandler = getExceptionHandler(sourceType); + if (exceptionHandler == null) { + return source; + } + + Object sourceFaultInfo = exceptionHandler.getFaultInfo(source); + Object targetFaultInfo = + mediator.mediate(sourceFaultInfo, sourceType.getLogical(), targetType.getLogical(), context.getMetadata()); + + ExceptionHandler targetHandler = getExceptionHandler(targetType); + + if (targetHandler != null) { + Exception targetException = + targetHandler.createException(targetType, source.getMessage(), targetFaultInfo, source.getCause()); + return targetException; + } + + // FIXME + return source; + + } + + private ExceptionHandler getExceptionHandler(DataType<DataType> targetType) { + DataType targetFaultType = (DataType)targetType.getLogical(); + DataBinding targetDataBinding = + mediator.getDataBindings().getDataBinding(targetFaultType.getDataBinding()); + if (targetDataBinding == null) { + return null; + } + ExceptionHandler targetHandler = targetDataBinding.getExceptionHandler(); + return targetHandler; + } +} |