private void assignStratifierValuesByKey(
final StratNode<K> node, final LinkedList<Object> states) {
if (node.isLeaf()) { // we're here!
if (states.isEmpty())
throw new ReviewedGATKException("Found a leaf node with an empty state values vector");
stratifierValuesByKey.set(
node.getKey(), Collections.unmodifiableList(new ArrayList<Object>(states)));
} else {
for (Map.Entry<Object, StratNode<K>> entry : node.getSubnodes().entrySet()) {
final LinkedList<Object> newStates = new LinkedList<Object>(states);
newStates.addLast(entry.getKey());
assignStratifierValuesByKey(entry.getValue(), newStates);
}
}
}
