/**
* 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.rdf.storage;
import org.apache.log4j.Logger;
import org.dspace.content.DSpaceObject;
import org.dspace.content.factory.ContentServiceFactory;
import org.dspace.core.Constants;
import org.dspace.core.Context;
import org.dspace.identifier.IdentifierException;
import org.dspace.identifier.factory.IdentifierServiceFactory;
import org.dspace.identifier.service.DOIService;
import java.sql.SQLException;
import java.util.List;
import java.util.UUID;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Required;
/**
*
* @author pbecker
*/
public class DOIURIGenerator implements URIGenerator
{
private static final Logger log = Logger.getLogger(DOIURIGenerator.class);
protected static URIGenerator fallback;
@Required
public static void setFallback(URIGenerator fallback) {
DOIURIGenerator.fallback = fallback;
}
@Autowired(required=true)
protected DOIService doiService;
@Override
public String generateIdentifier(Context context, int type, UUID id, String handle, List<String> identifiers)
throws SQLException
{
if (type != Constants.SITE
&& type != Constants.COMMUNITY
&& type != Constants.COLLECTION
&& type != Constants.ITEM)
{
return null;
}
String doi = null;
for (String identifier : identifiers)
{
try
{
doi = doiService.DOIToExternalForm(identifier);
} catch (IdentifierException ex) {
// identifier is not a DOI: no problem, keep on looking.
}
}
if (doi != null) {
return doi;
} else {
log.info("Didn't find a DOI for " + Constants.typeText[type] + ", id " + id.toString()
+ ", will use fallback URIGenerator.");
return fallback.generateIdentifier(context, type, id, handle, identifiers);
}
}
@Override
public String generateIdentifier(Context context, DSpaceObject dso)
throws SQLException
{
return generateIdentifier(
context,
dso.getType(),
dso.getID(),
dso.getHandle(),
ContentServiceFactory.getInstance().getDSpaceObjectService(dso)
.getIdentifiers(context, dso)
);
}
}