| /* |
| * 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 javax.xml.bind.JAXBContext; |
| import javax.xml.bind.Unmarshaller; |
| import javax.xml.bind.ValidationEvent; |
| import javax.xml.bind.util.ValidationEventCollector; |
| |
| import org.apache.tuscany.sca.core.ExtensionPointRegistry; |
| import org.apache.tuscany.sca.databinding.BaseTransformer; |
| import org.apache.tuscany.sca.databinding.PullTransformer; |
| import org.apache.tuscany.sca.databinding.TransformationContext; |
| import org.apache.tuscany.sca.databinding.TransformationException; |
| import org.w3c.dom.Node; |
| |
| /** |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class Node2JAXB extends BaseTransformer<Node, Object> implements PullTransformer<Node, Object> { |
| private JAXBContextHelper contextHelper; |
| |
| public Node2JAXB(ExtensionPointRegistry registry) { |
| contextHelper = JAXBContextHelper.getInstance(registry); |
| } |
| |
| public Object transform(Node source, TransformationContext context) { |
| ValidationEventCollector validationEventCollector = new ValidationEventCollector(); |
| Object response = null; |
| if (source == null) |
| return null; |
| try { |
| JAXBContext jaxbContext = contextHelper.createJAXBContext(context, false); |
| Object result; |
| // TUSCANY-3791 |
| synchronized(source){ |
| /* some debug code |
| System.setProperty("jaxb.debug", "true"); |
| unmarshaller.setListener(new DebugListener()); |
| */ |
| Unmarshaller unmarshaller = contextHelper.getUnmarshaller(jaxbContext); |
| try { |
| validationEventCollector.reset(); |
| unmarshaller.setEventHandler(validationEventCollector); |
| result = unmarshaller.unmarshal(source, JAXBContextHelper.getJavaType(context.getTargetDataType())); |
| } finally { |
| contextHelper.releaseJAXBUnmarshaller(jaxbContext, unmarshaller); |
| } |
| } |
| response = JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result); |
| } catch (Exception e) { |
| throw new TransformationException(e); |
| } |
| |
| if (validationEventCollector.hasEvents()){ |
| String validationErrors = ""; |
| for(ValidationEvent event : validationEventCollector.getEvents()){ |
| validationErrors += "Event: " + event.getMessage() + " "; |
| } |
| throw new TransformationException(validationErrors); |
| } |
| return response; |
| } |
| |
| @Override |
| protected Class<Node> getSourceType() { |
| return Node.class; |
| } |
| |
| @Override |
| protected Class<Object> getTargetType() { |
| return Object.class; |
| } |
| |
| @Override |
| public int getWeight() { |
| return 30; |
| } |
| |
| @Override |
| public String getTargetDataBinding() { |
| return JAXBDataBinding.NAME; |
| } |
| |
| /* some debug code |
| class DebugListener extends Unmarshaller.Listener { |
| public void beforeUnmarshal(Object target, Object parent) { |
| |
| } |
| |
| public void afterUnmarshal(Object target, Object parent) { |
| |
| } |
| } |
| */ |
| } |