org.dspace.xoai.app.CCElementItemCompilePlugin Maven / Gradle / Ivy
/**
* The contents of this file are subject to the license and copyright
* detailed in the LICENSE and NOTICE files at the root of the source
* tree and available online at
*
* http://www.dspace.org/license/
*/
package org.dspace.xoai.app;
import java.util.List;
import com.lyncode.xoai.dataprovider.xml.xoai.Element;
import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
import org.apache.commons.lang.StringUtils;
import org.dspace.content.Item;
import org.dspace.core.Context;
import org.dspace.license.factory.LicenseServiceFactory;
import org.dspace.license.service.CreativeCommonsService;
import org.dspace.xoai.util.ItemUtils;
/**
* XOAIExtensionItemCompilePlugin aims to add structured information about the
* creative commons license applied to the item (if any).
* The xoai document will be enriched with a structure like that
*
*
*
*
*
*
*
*/
public class CCElementItemCompilePlugin implements XOAIExtensionItemCompilePlugin {
@Override
public Metadata additionalMetadata(Context context, Metadata metadata, Item item) {
CreativeCommonsService creativeCommonsService = LicenseServiceFactory.getInstance().getCreativeCommonsService();
String licenseURI = creativeCommonsService.getLicenseURI(item);
String licenseName = creativeCommonsService.getLicenseName(item);
// licence uri is mandatory, name is optional
if (StringUtils.isNotBlank(licenseURI)) {
Element ccLicense = ItemUtils.create("cc");
ccLicense.getField().add(ItemUtils.createValue("uri", licenseURI));
if (StringUtils.isNotBlank(licenseName)) {
ccLicense.getField().add(ItemUtils.createValue("name", licenseName));
}
Element other;
List elements = metadata.getElement();
if (ItemUtils.getElement(elements, "others") != null) {
other = ItemUtils.getElement(elements, "others");
} else {
other = ItemUtils.create("others");
}
other.getElement().add(ccLicense);
}
return metadata;
}
}