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-rw-r--r-- | branches/sca-java-1.3.2/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/branches/sca-java-1.3.2/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java b/branches/sca-java-1.3.2/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java new file mode 100644 index 0000000000..00e99aaacd --- /dev/null +++ b/branches/sca-java-1.3.2/modules/databinding-jaxb-axiom/src/main/java/org/apache/tuscany/sca/databinding/jaxb/axiom/OMElement2JAXB.java @@ -0,0 +1,85 @@ +/* + * 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.axiom; + +import java.security.AccessController; +import java.security.PrivilegedActionException; +import java.security.PrivilegedExceptionAction; + +import javax.xml.bind.JAXBContext; +import javax.xml.bind.JAXBException; +import javax.xml.bind.Unmarshaller; +import javax.xml.stream.XMLStreamException; +import javax.xml.stream.XMLStreamReader; + +import org.apache.axiom.om.OMElement; +import org.apache.tuscany.sca.databinding.PullTransformer; +import org.apache.tuscany.sca.databinding.TransformationContext; +import org.apache.tuscany.sca.databinding.TransformationException; +import org.apache.tuscany.sca.databinding.impl.BaseTransformer; +import org.apache.tuscany.sca.databinding.jaxb.JAXBContextHelper; + +/** + * @version $Rev$ $Date$ + */ +public class OMElement2JAXB extends BaseTransformer<OMElement, Object> implements PullTransformer<OMElement, Object> { + + @Override + public String getSourceDataBinding() { + return org.apache.axiom.om.OMElement.class.getName(); + } + + @SuppressWarnings("unchecked") + public Object transform(final OMElement source, final TransformationContext context) throws TransformationException { + try { + return AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() { + public Object run() throws JAXBException, XMLStreamException { + // Marshalling directly to the output stream is faster than marshalling through the + // XMLStreamWriter. + // Take advantage of this optimization if there is an output stream. + JAXBContext jaxbContext = JAXBContextHelper.createJAXBContext(context, false); + Unmarshaller unmarshaller = jaxbContext.createUnmarshaller(); + XMLStreamReader reader = source.getXMLStreamReaderWithoutCaching(); + Object result = + unmarshaller.unmarshal(reader, JAXBContextHelper.getJavaType(context.getTargetDataType())); + reader.close(); + return JAXBContextHelper.createReturnValue(jaxbContext, context.getTargetDataType(), result); + } + }); + } catch (PrivilegedActionException e) { + throw new TransformationException(e.getException()); + } + } + + @Override + public Class<OMElement> getSourceType() { + return OMElement.class; + } + + @Override + public Class<Object> getTargetType() { + return Object.class; + } + + @Override + public int getWeight() { + return 3000; + } +} |