/*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*
* This software is open source.
* See the bottom of this file for the licence.
*/
package org.dom4j.jaxb;
import org.dom4j.dom.DOMDocument;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.Marshaller;
import javax.xml.bind.Unmarshaller;
import javax.xml.transform.Source;
import javax.xml.transform.stream.StreamSource;
import java.io.StringReader;
/**
* DOCUMENT ME!
*
* @author Wonne Keysers (Realsoftware.be)
*/
abstract class JAXBSupport {
private String contextPath;
private ClassLoader classloader;
private JAXBContext jaxbContext;
private Marshaller marshaller;
private Unmarshaller unmarshaller;
public JAXBSupport(String contextPath) {
this.contextPath = contextPath;
}
public JAXBSupport(String contextPath, ClassLoader classloader) {
this.contextPath = contextPath;
this.classloader = classloader;
}
/**
* Marshals the given {@link javax.xml.bind.Element}in to its DOM4J
* counterpart.
*
* @param element JAXB Element to be marshalled
* @return the marshalled DOM4J {@link org.dom4j.Element}
* @throws JAXBException when an error occurs
*/
protected org.dom4j.Element marshal(javax.xml.bind.Element element)
throws JAXBException {
DOMDocument doc = new DOMDocument();
getMarshaller().marshal(element, doc);
return doc.getRootElement();
}
/**
* Unmarshalls the specified DOM4J {@link org.dom4j.Element}into a {@link
* javax.xml.bind.Element}
*
* @param element the DOM4J element to unmarshall
* @return the unmarshalled JAXB object
* @throws JAXBException when an error occurs
*/
protected javax.xml.bind.Element unmarshal(org.dom4j.Element element)
throws JAXBException {
Source source = new StreamSource(new StringReader(element.asXML()));
return (javax.xml.bind.Element) getUnmarshaller().unmarshal(source);
}
private Marshaller getMarshaller() throws JAXBException {
if (marshaller == null) {
marshaller = getContext().createMarshaller();
}
return marshaller;
}
private Unmarshaller getUnmarshaller() throws JAXBException {
if (unmarshaller == null) {
unmarshaller = getContext().createUnmarshaller();
}
return unmarshaller;
}
private JAXBContext getContext() throws JAXBException {
if (jaxbContext == null) {
if (classloader == null) {
jaxbContext = JAXBContext.newInstance(contextPath);
} else {
jaxbContext = JAXBContext.newInstance(contextPath, classloader);
}
}
return jaxbContext;
}
}
/*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name "DOM4J" must not be used to endorse or promote products derived
* from this Software without prior written permission of MetaStuff, Ltd. For
* written permission, please contact dom4j-info@metastuff.com.
*
* 4. Products derived from this Software may not be called "DOM4J" nor may
* "DOM4J" appear in their names without prior written permission of MetaStuff,
* Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
*
* 5. Due credit should be given to the DOM4J Project - http://dom4j.sourceforge.net
*
* THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
*/