org.apache.fop.fo.extensions.xmp.AbstractMetadataElement Maven / Gradle / Ivy
/*
* 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.
*/
/* $Id: AbstractMetadataElement.java 1296526 2012-03-03 00:18:45Z gadams $ */
package org.apache.fop.fo.extensions.xmp;
import org.apache.xmlgraphics.xmp.Metadata;
import org.apache.fop.fo.FONode;
import org.apache.fop.fo.FObj;
import org.apache.fop.fo.extensions.ExtensionAttachment;
import org.apache.fop.util.ContentHandlerFactory;
import org.apache.fop.util.ContentHandlerFactory.ObjectBuiltListener;
/**
* Abstract base class for the XMP and RDF root nodes.
*/
public abstract class AbstractMetadataElement extends FONode implements ObjectBuiltListener {
private XMPMetadata attachment;
/**
* Main constructor.
* @param parent the parent formatting object
*/
public AbstractMetadataElement(FONode parent) {
super(parent);
}
/**
* {@inheritDoc}
*/
public ContentHandlerFactory getContentHandlerFactory() {
return new XMPContentHandlerFactory();
}
/** {@inheritDoc} */
public ExtensionAttachment getExtensionAttachment() {
if (parent instanceof FObj) {
if (attachment == null) {
attachment = new XMPMetadata();
}
return attachment;
} else {
return super.getExtensionAttachment();
}
}
/** {@inheritDoc} */
public void notifyObjectBuilt(Object obj) {
attachment.setMetadata((Metadata)obj);
}
}