public static void collectResourcesSO(Model m, Collection target) throws ModelException {
for (Enumeration en = m.elements(); en.hasMoreElements(); ) {
Statement st = (Statement) en.nextElement();
if (!(st.object() instanceof Literal) && !(st.object() instanceof Statement))
target.add(st.object());
target.add(st.subject());
}
}
public static void replaceResources(Collection src, Collection dest, NodeFactory f, Map o2n)
throws ModelException {
Iterator it = src.iterator();
while (it.hasNext()) {
Statement st = (Statement) it.next();
dest.add(replaceResources(st, f, o2n));
}
}
public static void collectPredicates(Model m, Collection target) throws ModelException {
for (Enumeration en = m.elements(); en.hasMoreElements(); ) {
Statement st = (Statement) en.nextElement();
target.add(st.predicate());
}
}
// 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 void collectNamespaces(Resource r, Collection target) throws ModelException {
String ns = r.getNamespace();
if (ns != null) target.add(ns);
}