public Iterator<String> getPrefixes(String nsuri) {
if (nsuri == null) {
throw new IllegalArgumentException();
}
Iterator<String> i = currentContext.getPrefixes();
if (!i.hasNext()) {
return EmptyIterator.<String>emptyIterator();
}
final List<String> list = new LinkedList<String>();
do {
String prefix = i.next();
if (nsuri.equals(getNamespaceURI(prefix))) {
list.add(prefix);
}
} while (i.hasNext());
return list.iterator();
}
/** Return an enumeration of all prefixes currently declared. */
public Iterator<String> getAllPrefixes() {
return currentContext.getPrefixes();
}