// returns list of statements
protected static void replaceMultSPO(
Statement st, NodeFactory f, Map o2n, Collection result, RDFNode toReplace, int position)
throws ModelException {
Collection replacements;
if (toReplace instanceof Statement) {
List l = new ArrayList();
replaceMult((Statement) toReplace, f, o2n, l);
if (l.size() == 1 && toReplace == l.get(0)) {
result.add(st);
return; // keep the same
} else replacements = l;
} else {
Object ro = o2n.get(toReplace);
if (ro instanceof Collection) replacements = (Collection) ro;
else if (ro != null) {
replacements = new ArrayList();
replacements.add(ro);
} else { // no replacement needed
result.add(st); // keep the same statement
return;
}
}
for (Iterator it = replacements.iterator(); it.hasNext(); ) {
Statement rs = null;
Object rr = it.next();
switch (position) {
case 0:
rs = f.createStatement((Resource) rr, st.predicate(), st.object());
break;
case 1:
rs = f.createStatement(st.subject(), (Resource) rr, st.object());
break;
case 2:
rs = f.createStatement(st.subject(), st.predicate(), (RDFNode) rr);
break;
}
result.add(rs);
}
}
public static List getObjects(Model m, Resource subject, Resource predicate)
throws ModelException {
List result = new ArrayList();
if (m == null || m.size() == 0) return result;
for (Enumeration en = m.find(subject, predicate, null).elements(); en.hasMoreElements(); ) {
Statement st = (Statement) en.nextElement();
result.add(st.object());
}
return result;
}
// returns list of statements
public static void replaceMult(Statement st, NodeFactory f, Map o2n, Collection result)
throws ModelException {
List l1 = new ArrayList();
replaceMultSPO(st, f, o2n, l1, st.subject(), 0);
List l2 = new ArrayList();
for (int i = 0; i < l1.size(); i++)
replaceMultSPO((Statement) l1.get(i), f, o2n, l2, st.predicate(), 1);
for (int i = 0; i < l2.size(); i++)
replaceMultSPO((Statement) l2.get(i), f, o2n, result, st.object(), 2);
}