public void addTypedIdResource(TypedIdResource typedIdResource) throws FrameworkException {
logger.log(Level.FINE, "Adding id {0} to id set", typedIdResource.getIdResource().getUriPart());
// we need to differentiate between UuidResource and UuidResource
UuidResource idResource = typedIdResource.getIdResource();
if (idResource instanceof UuidResource) {
// add uuid from TypedIdResource to idSet
if (!idSet.add(((UuidResource) idResource).getUriPart())) {
// id alread in set, this is an illegal path!
throw new IllegalPathException();
}
} else {
// add id from TypedIdResource to idSet
if (!idSet.add(idResource.getUuid())) {
// id alread in set, this is an illegal path!
throw new IllegalPathException();
}
}
// add id from TypedIdResource to idSet
uriParts.add(typedIdResource.getUriPart());
// find static relationship between the two types
PropertyKey key = findPropertyKey(lastResource, typedIdResource.getTypeResource());
if (key != null && key instanceof AbstractRelationProperty) {
AbstractRelationProperty rel = (AbstractRelationProperty) key;
if (!visitedRelationships.contains(rel)) {
traversalDescription =
traversalDescription.relationships(rel.getRelType(), rel.getDirection());
visitedRelationships.add(rel);
}
} else {
String rawType1 = lastResource.getTypeResource().getRawType();
String rawType2 = typedIdResource.getTypeResource().getRawType();
logger.log(
Level.INFO,
"No relationship defined between {0} and {1}, illegal path",
new Object[] {rawType1, rawType2});
// no relationship defined, illegal path
throw new IllegalPathException();
}
// store last constraint separately
lastResource = typedIdResource;
}
@Override
public TraversalDescription getTraversalDescription(final SecurityContext securityContext) {
TraversalDescription description =
StructrApp.getInstance(securityContext)
.getGraphDatabaseService()
.traversalDescription()
.breadthFirst()
.uniqueness(getUniqueness());
// set evaluators
for (Evaluator evaluator : getEvaluators()) {
description = description.evaluator(evaluator);
}
// add predicates as evaluators
for (final Predicate<Node> predicate : predicates) {
description =
description.evaluator(
new Evaluator() {
@Override
public Evaluation evaluate(Path path) {
Node endNode = path.endNode();
if (predicate.evaluate(securityContext, endNode)) {
return Evaluation.EXCLUDE_AND_PRUNE;
}
return Evaluation.INCLUDE_AND_CONTINUE;
}
});
}
// set rel type and direction
int numRels = relTypes.size();
for (int i = 0; i < numRels; i++) {
RelationshipType relType = relTypes.get(i);
Direction direction = directions.get(i);
description = description.relationships(relType, direction);
}
return description;
}
