/**
* removeLink
*
* <p>Remove the specified link with the object
*
* <pre>
* Version Date Developer Description
* 0.21 22/10/2012 Genevieve Turner(GT) Initial
* 0.23 26/11/2012 Genevieve Turner (GT) Added the removal of reverse links
* </pre>
*
* @param fedoraObject The fedoraObject to remove an association with
* @param linkType The relationship type to remove
* @param itemId The item to remove the relationship from
* @throws FedoraClientException
* @see
* au.edu.anu.datacommons.security.service.FedoraObjectService#removeLink(au.edu.anu.datacommons.data.db.model.FedoraObject,
* java.lang.String, java.lang.String)
*/
@Override
public void removeLink(FedoraObject fedoraObject, String linkType, String itemId)
throws FedoraClientException {
String link = GlobalProps.getProperty(GlobalProps.PROP_FEDORA_RELATEDURI);
LinkTypeDAO linkTypeDAO = new LinkTypeDAOImpl();
LinkType linkTypeRecord = linkTypeDAO.getByCode(linkType);
if (null == linkTypeRecord) {
throw new WebApplicationException(
Response.status(400).entity("Invalid relation type").build());
}
FedoraReference reference = new FedoraReference();
String referenceType = linkType;
String referenceItem = itemId;
reference.setPredicate_(link + referenceType);
reference.setObject_(referenceItem);
reference.setIsLiteral_(Boolean.FALSE);
LOGGER.debug(
"Item: {}, Predicate: {}, Object: {}",
new Object[] {
fedoraObject.getObject_id(), reference.getPredicate_(), reference.getObject_()
});
FedoraBroker.removeRelationship(fedoraObject.getObject_id(), reference);
if (referenceItem.startsWith("info:fedora/")) {
String referenceItemID = referenceItem.substring(12);
FedoraReference reverseReference = new FedoraReference();
reverseReference.setPredicate_(link + linkTypeRecord.getReverse());
reverseReference.setObject_("info:fedora/" + fedoraObject.getObject_id());
reverseReference.setIsLiteral_(Boolean.FALSE);
LOGGER.debug(
"Item: {}, Predicate: {}, Object: {}",
new Object[] {
referenceItemID, reverseReference.getPredicate_(), reverseReference.getObject_()
});
FedoraBroker.removeRelationship(referenceItemID, reverseReference);
}
}
