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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 javax.xml.stream.XMLStreamConstants;
import javax.xml.stream.XMLStreamReader;
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.apache.tuscany.sdo.api.SDOUtil;
import org.apache.tuscany.sdo.api.XMLStreamHelper;
import commonj.sdo.DataObject;
import commonj.sdo.helper.HelperContext;
public class XMLStreamReader2DataObject extends BaseTransformer<XMLStreamReader, DataObject> implements
PullTransformer<XMLStreamReader, DataObject> {
public DataObject transform(XMLStreamReader source, TransformationContext context) {
if (source == null) {
return null;
}
try {
HelperContext helperContext = SDOContextHelper.getHelperContext(context, false);
XMLStreamHelper streamHelper = SDOUtil.createXMLStreamHelper(helperContext);
// The XMLStreamHelper requires that the reader is positioned at
// START_ELEMENT
while (source.getEventType() != XMLStreamConstants.START_ELEMENT && source.hasNext()) {
source.next();
}
DataObject target = streamHelper.loadObject(source);
source.close();
return target;
} catch (Exception e) {
throw new TransformationException(e);
}
}
@Override
protected Class<DataObject> getTargetType() {
return DataObject.class;
}
@Override
protected Class<XMLStreamReader> getSourceType() {
return XMLStreamReader.class;
}
@Override
public int getWeight() {
return 15;
}
}
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