@SuppressWarnings("unchecked")
private Object createDefaultValue(RDFProperty property) {
for (Iterator<AnnotationsWidgetPlugin> it = TriplesComponent.plugins(); it.hasNext(); ) {
AnnotationsWidgetPlugin plugin = it.next();
if (plugin.canEdit(subject, property, null)) {
Object defaultValue = plugin.createDefaultValue(subject, property);
if (defaultValue != null) {
return defaultValue;
}
}
}
RDFResource range = property.getRange();
if (range instanceof RDFSDatatype) {
return ((RDFSDatatype) range).getDefaultValue();
} else if (range instanceof OWLDataRange) {
OWLDataRange dataRange = (OWLDataRange) range;
RDFList oneOf = dataRange.getOneOf();
Object firstValue = null;
if (oneOf != null) {
Collection values = oneOf.getValues();
if (!values.isEmpty()) {
firstValue = values.iterator().next();
}
}
return firstValue;
} else if (property instanceof OWLObjectProperty) {
return null;
} else {
return "";
}
}
public List getValues() {
List result = new ArrayList();
RDFList l = this;
while (l != null && l.getFirst() != null) {
result.add(l.getFirst());
l = l.getRest();
}
return result;
}
public boolean isClosed() {
RDFList rest = getRest();
if (rest == null) {
return false;
} else if (rest.equals(getOWLModel().getRDFNil())) {
return true;
} else {
return rest.isClosed();
}
}
public static void removeListValue(
RDFResource resource, RDFProperty property, RDFList li, int index) {
if (index == 0) {
RDFList rest = li.getRest();
if (li.getOWLModel().getRDFNil().equals(rest)) {
rest = null;
}
li.setRest(null);
resource.setPropertyValue(property, rest);
li.delete();
} else {
RDFList pred = null;
while (index > 0) {
index--;
pred = li;
li = li.getRest();
}
RDFList rest = li.getRest();
li.setRest(null);
pred.setRest(rest);
li.delete();
}
}
public boolean equalsStructurally(RDFObject object) {
if (object instanceof RDFList) {
RDFList list = (RDFList) object;
if (getValues().size() == list.getValues().size()) {
Iterator it = getValues().iterator();
for (Iterator listIt = list.getValues().iterator(); listIt.hasNext(); ) {
OWLModel model = getOWLModel();
RDFObject curListObj = model.asRDFObject(listIt.next());
RDFObject curThisObj = model.asRDFObject(it.next());
if (curListObj != null && curThisObj != null) {
if (curListObj.equalsStructurally(curThisObj) == false) {
return false;
}
} else {
if (curListObj != curThisObj) {
return false;
}
}
}
return true;
}
}
return false;
}
public void append(Object value) {
boolean done = false;
RDFList current = this;
while (!done) {
if (current.getFirst() == null) {
current.setFirst(value);
current.setRest(getOWLModel().getRDFNil());
done = true;
} else if (current.getRest() == null || getOWLModel().getRDFNil().equals(current.getRest())) {
RDFSNamedClass listClass = (RDFSNamedClass) getDirectType();
RDFList newRest = (RDFList) listClass.createAnonymousInstance();
newRest.setFirst(value);
newRest.setRest(getOWLModel().getRDFNil());
current.setRest(newRest);
done = true;
} else {
current = current.getRest(); // Recursion into tail
}
}
}
public static void removeListValue(RDFResource resource, RDFProperty property, Object value) {
RDFList list = (RDFList) resource.getPropertyValue(property);
List values = list.getValues();
int index = values.indexOf(value);
removeListValue(resource, property, list, index);
}