public Collection<OntView> getCandidates() {
OntResource r = verb.getRange();
r = m().getOntClass(r.getURI());
return new each(r.asClass().listInstances()) {
void $() {
if (!m().contains(subject, verb, item)) add(OntView.$(item));
}
}.result;
}
/**
* Call this method to convert a value (v) as a Java object to a typed Literal matching the range
* of the property.
*
* @param m
* @param prop
* @param v
* @return
* @throws Exception
*/
public static synchronized Literal getLiteralMatchingDataPropertyRange(
OntModel m, OntProperty prop, Object v) throws Exception {
Literal val = null;
String errMsg = null;
if (prop.isAnnotationProperty()) {
return m.createTypedLiteral(v);
}
// SADL only has DoubleLiterals--if this property has range float convert v to Float.
OntResource rng = prop.getRange();
String rnguri = rng != null ? rng.getURI() : null;
if (rng == null) {
errMsg = "Range not given.";
} else if (rng.isAnon()) {
// this is a complex range--needs work. Try to do something with it....
// If value is a String
if (v instanceof String) {
v = stripQuotes((String) v);
val = m.createTypedLiteral(v);
} else {
val = m.createTypedLiteral(v);
if (val == null) {
errMsg =
"Range is an unsupported complex type, failed to create a Literal value for '"
+ v.toString()
+ "'.";
}
}
} else {
val = getLiteralMatchingDataPropertyRange(m, rnguri, v);
}
if (errMsg != null) {
errMsg += " (Property is '" + prop.getLocalName() + "'.)";
throw new Exception(errMsg);
}
return val;
}
private void addField(OntResource type, OntProperty p, OntProperty ancestor) {
int minCardinality = 0;
int maxCardinality = -1;
OntResource range = null;
String typeURI = type.getURI();
if (typeURI == null) {
// We only add fields to named types.
return;
}
// Do not add abstract properties.
if (isAbstract(p)) return;
Frame frame = manager.getFrameByUri(typeURI);
if (frame == null) {
if (isStandard(typeURI)) return;
logger.warn(
"Ignoring property "
+ p.getLocalName()
+ " on class "
+ type.getLocalName()
+ ": frame not found");
return;
}
if (frame.getDeclaredFieldByPropertyURI(p.getURI()) != null) return;
if (p.hasRDFType(OWL.FunctionalProperty)) {
maxCardinality = 1;
}
OntClass restriction = frame.getRestriction(p.getURI());
range = p.getRange();
if (range == null && ancestor != null) {
range = ancestor.getRange();
}
if (range == null) {
// logger.warn("Ignoring property " + p.getLocalName() + " on class " +
// type.getLocalName() + ": range not defined");
// return;
range = THING;
}
if (restriction != null) {
Resource onClass = restriction.getPropertyResourceValue(OWL2.onClass);
if (onClass != null) {
range = onClass.as(OntResource.class);
if (restriction.hasProperty(OWL2.minQualifiedCardinality)) {
minCardinality = restriction.getProperty(OWL2.minQualifiedCardinality).getInt();
}
if (restriction.hasProperty(OWL2.maxQualifiedCardinality)) {
maxCardinality = restriction.getProperty(OWL2.maxQualifiedCardinality).getInt();
}
} else {
if (restriction.hasProperty(OWL.minCardinality)) {
minCardinality = restriction.getProperty(OWL.minCardinality).getInt();
}
if (restriction.hasProperty(OWL.maxCardinality)) {
maxCardinality = restriction.getProperty(OWL.maxCardinality).getInt();
}
}
}
Field field = null;
String rangeURI = range.getURI();
if (rangeURI == null) {
field = createListField(frame, p, range);
if (field == null) {
logger.warn(
"Ignoring property "
+ p.getLocalName()
+ " on class "
+ type.getLocalName()
+ ": range has no URI");
return;
}
} else {
field = new Field(frame, p, range, minCardinality, maxCardinality);
if (field.getRdfType() == null) {
logger.warn(
"Failed to create RdfType for field "
+ field.getLocalName()
+ " of type "
+ field.getType().getURI());
}
}
Resource rawInverse = p.getPropertyResourceValue(OWL.inverseOf);
if (rawInverse != null && rawInverse.canAs(OntProperty.class)) {
field.setInverseOf(rawInverse.as(OntProperty.class));
}
frame.getDeclaredFields().add(field);
}