// 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 Statement replaceNamespace(
Statement st, String o, String n, NodeFactory f, Map o2n, Set resourcesToIgnore)
throws ModelException {
boolean replaced = false;
Resource subj = st.subject();
Resource pred = st.predicate();
RDFNode obj = st.object();
if (obj instanceof Resource
&& !(obj instanceof Statement)
&& o.equals(((Resource) obj).getNamespace())
&& (resourcesToIgnore == null || !resourcesToIgnore.contains(obj))) {
replaced = true;
Resource r = f.createResource(n, ((Resource) obj).getLocalName());
if (o2n != null) o2n.put(obj, r);
obj = r;
}
if (o.equals(subj.getNamespace())
&& (resourcesToIgnore == null || !resourcesToIgnore.contains(subj))) {
replaced = true;
Resource r = f.createResource(n, subj.getLocalName());
if (o2n != null) o2n.put(subj, r);
subj = r;
}
if (o.equals(pred.getNamespace())
&& (resourcesToIgnore == null || !resourcesToIgnore.contains(pred))) {
replaced = true;
Resource r = f.createResource(n, pred.getLocalName());
if (o2n != null) o2n.put(pred, r);
pred = r;
}
return replaced ? f.createStatement(subj, pred, obj) : st;
}
public static Statement replaceResources(Statement st, NodeFactory f, Map o2n)
throws ModelException {
boolean replaced = false;
Resource subj = st.subject();
Resource pred = st.predicate();
RDFNode obj = st.object();
Object n = null;
if (obj instanceof Statement) {
n = obj;
obj = replaceResources((Statement) obj, f, o2n);
replaced = n != obj;
} else if ((n = o2n.get(obj)) != null) {
replaced = true;
obj = (RDFNode) n;
}
if (subj instanceof Statement) {
n = subj;
subj = replaceResources((Statement) subj, f, o2n);
replaced = n != subj;
}
if ((n = o2n.get(subj)) != null) {
replaced = true;
subj = (Resource) n;
}
if ((n = o2n.get(pred)) != null) {
replaced = true;
pred = (Resource) n;
}
return replaced ? f.createStatement(subj, pred, obj) : st;
}
/**
* @return a new model in which all occurrences of the old resources are replaced by the new ones.
* Returns number replacements done.
*/
public static int replaceResource(Model m, Resource oldR, Resource newR) throws ModelException {
Map map = new HashMap();
map.put(oldR, newR);
return replaceResources(m, map);
}
