private Map<String, TreeElement> getElementMap(final List<TreeElement> model) {
final Map<String, TreeElement> elementMap = new HashMap<String, TreeElement>(model.size());
for (final TreeElement te : model) {
if (te.getName() != null) {
elementMap.put(te.getName(), te);
}
}
return Collections.unmodifiableMap(elementMap);
}
private Set<String> getRoots(List<TreeElement> model) {
final Set<String> roots = new HashSet<String>(model.size());
for (final TreeElement tn : model) {
if (tn.getName() != null) {
roots.add(tn.getName());
}
}
for (final TreeElement tn : model) {
for (final TreeElement child : tn.getElements()) {
if (child.getClazz() != null) {
roots.remove(child.getClazz());
}
}
}
return roots;
}