@Override
public void deleteRelation(
CoreSession session,
DocumentModel from,
DocumentModel to,
String predicate,
boolean includeStatementsInEvents)
throws ClientException {
QNameResource fromResource =
(QNameResource)
getRelationManager().getResource(RelationConstants.DOCUMENT_NAMESPACE, from, null);
QNameResource toResource =
(QNameResource)
getRelationManager().getResource(RelationConstants.DOCUMENT_NAMESPACE, to, null);
Resource predicateResource = new ResourceImpl(predicate);
Graph graph = getRelationManager().getGraphByName(RelationConstants.GRAPH_NAME);
List<Statement> statements = graph.getStatements(fromResource, predicateResource, toResource);
if (statements == null || statements.size() == 0) {
// Silent ignore the deletion as it doesn't exist
return;
}
for (Statement stmt : statements) {
deleteRelation(session, stmt);
}
}
@Override
public void addRelation(
CoreSession session,
DocumentModel from,
Node toResource,
String predicate,
boolean inverse,
boolean includeStatementsInEvents,
String comment)
throws ClientException {
Graph graph = getRelationManager().getGraphByName(RelationConstants.GRAPH_NAME);
QNameResource fromResource = getNodeFromDocumentModel(from);
Resource predicateResource = new ResourceImpl(predicate);
Statement stmt = null;
List<Statement> statements = null;
if (inverse) {
stmt = new StatementImpl(toResource, predicateResource, fromResource);
statements = graph.getStatements(toResource, predicateResource, fromResource);
if (statements != null && statements.size() > 0) {
throw new RelationAlreadyExistsException();
}
} else {
stmt = new StatementImpl(fromResource, predicateResource, toResource);
statements = graph.getStatements(fromResource, predicateResource, toResource);
if (statements != null && statements.size() > 0) {
throw new RelationAlreadyExistsException();
}
}
// Comment ?
if (!StringUtils.isEmpty(comment)) {
stmt.addProperty(RelationConstants.COMMENT, new LiteralImpl(comment));
}
Literal now = RelationDate.getLiteralDate(new Date());
if (stmt.getProperties(RelationConstants.CREATION_DATE) == null) {
stmt.addProperty(RelationConstants.CREATION_DATE, now);
}
if (stmt.getProperties(RelationConstants.MODIFICATION_DATE) == null) {
stmt.addProperty(RelationConstants.MODIFICATION_DATE, now);
}
if (session.getPrincipal() != null && stmt.getProperty(RelationConstants.AUTHOR) != null) {
stmt.addProperty(RelationConstants.AUTHOR, new LiteralImpl(session.getPrincipal().getName()));
}
// notifications
Map<String, Serializable> options = new HashMap<String, Serializable>();
String currentLifeCycleState = from.getCurrentLifeCycleState();
options.put(CoreEventConstants.DOC_LIFE_CYCLE, currentLifeCycleState);
if (includeStatementsInEvents) {
putStatements(options, stmt);
}
options.put(RelationEvents.GRAPH_NAME_EVENT_KEY, RelationConstants.GRAPH_NAME);
// before notification
notifyEvent(RelationEvents.BEFORE_RELATION_CREATION, from, options, comment, session);
// add statement
graph.add(stmt);
// XXX AT: try to refetch it from the graph so that resources are
// transformed into qname resources: useful for indexing
if (includeStatementsInEvents) {
putStatements(options, graph.getStatements(stmt));
}
// after notification
notifyEvent(RelationEvents.AFTER_RELATION_CREATION, from, options, comment, session);
}