public static String getCanonicalForm(DSpaceObject dso) {
String cf = "";
String ns = ConfigurationManager.getProperty("identifier.url-scheme");
if (!"".equals(ns) && ns != null) {
ExternalIdentifierType type = ExternalIdentifierMint.getType(ns);
List<ExternalIdentifier> eids = dso.getExternalIdentifiers();
for (ExternalIdentifier eid : eids) {
if (eid.getType().equals(type)) {
cf = eid.getCanonicalForm();
}
}
}
if ("".equals(cf)) {
ObjectIdentifier oid = dso.getIdentifier();
if (oid == null) {
return cf;
}
cf = oid.getCanonicalForm();
}
return cf;
}
public static URL getURL(DSpaceObject dso) {
URL url = null;
String ns = ConfigurationManager.getProperty("identifier.url-scheme");
if (!"".equals(ns) && ns != null) {
ExternalIdentifierType type = ExternalIdentifierMint.getType(ns);
List<ExternalIdentifier> eids = dso.getExternalIdentifiers();
for (ExternalIdentifier eid : eids) {
if (eid.getType().equals(type)) {
url = IdentifierFactory.getURL(eid);
}
}
}
if (url == null) {
ObjectIdentifier oid = dso.getIdentifier();
if (oid == null) {
return null;
}
url = IdentifierFactory.getURL(oid);
}
return url;
}