/*******************************************************************************
* Copyright (c) 1998, 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.oxm.record.deferred;
import org.xml.sax.SAXException;
import org.eclipse.persistence.exceptions.XMLMarshalException;
import org.eclipse.persistence.internal.oxm.record.UnmappedContentHandlerWrapper;
import org.eclipse.persistence.internal.security.PrivilegedNewInstanceFromClass;
import org.eclipse.persistence.oxm.record.UnmarshalRecord;
import org.eclipse.persistence.oxm.unmapped.UnmappedContentHandler;
/**
* <p><b>Purpose</b>: Implementation of DeferredContentHandler for XMLAnyCollectionMappings.
* <p><b>Responsibilities</b>:<ul>
* <li> If the element is empty then execute stored events and return control to the original parentRecord
* <li> If the element has simple content execute stored events and return control to the original parentRecord
* <li> If the element has complex content execute stored events and return control to a new unmappedhandler
* </ul>
*/
public class AnyMappingContentHandler extends DeferredContentHandler {
private boolean usesXMLRoot;
public AnyMappingContentHandler(UnmarshalRecord parentRecord, boolean usesXMLRoot) {
super(parentRecord);
this.usesXMLRoot = usesXMLRoot;
}
protected void processEmptyElement() throws SAXException {
processSimpleElement();
}
protected void processSimpleElement() throws SAXException {
if(usesXMLRoot) {
//Remove the first event as the start element for this element was already process by parentRecord
getEvents().remove(0);
executeEvents(getParent());
} else {
processComplexElement();
}
}
protected void processComplexElement() throws SAXException {
getParent().unmappedContent();
Class unmappedContentHandlerClass = getParent().getUnmarshaller().getUnmappedContentHandlerClass();
UnmappedContentHandler unmappedContentHandler;
if (null == unmappedContentHandlerClass) {
unmappedContentHandler = UnmarshalRecord.DEFAULT_UNMAPPED_CONTENT_HANDLER;
} else {
try {
PrivilegedNewInstanceFromClass privilegedNewInstanceFromClass = new PrivilegedNewInstanceFromClass(unmappedContentHandlerClass);
unmappedContentHandler = (UnmappedContentHandler)privilegedNewInstanceFromClass.run();
} catch (ClassCastException e) {
throw XMLMarshalException.unmappedContentHandlerDoesntImplement(e, unmappedContentHandlerClass.getName());
} catch (IllegalAccessException e) {
throw XMLMarshalException.errorInstantiatingUnmappedContentHandler(e, unmappedContentHandlerClass.getName());
} catch (InstantiationException e) {
throw XMLMarshalException.errorInstantiatingUnmappedContentHandler(e, unmappedContentHandlerClass.getName());
}
}
UnmappedContentHandlerWrapper unmappedContentHandlerWrapper = new UnmappedContentHandlerWrapper(getParent(), unmappedContentHandler);
executeEvents(unmappedContentHandlerWrapper);
}
}