public Source findRoot(String prefix, Source source) { Source parent = findParent(prefix, source); int parents = new StringTokenizer(prefix, ".").countTokens(); for (int i = 0; i < parents; i++) { parent = parent.getParent(); } return parent; }
public boolean hasPrefix(String prefix, Source source) { List packages = CollectionUtil.toList(new StringTokenizer(prefix, ".")); Collections.reverse(packages); for (int i = 0; i < packages.size(); i++) { String aPackage = (String) packages.get(i); if (!aPackage.equals(source.getName())) { return false; } source = source.getParent(); } return true; }
public Source findParent(String prefix, Source source) { while (source != null && !hasPrefix(prefix, source)) { source = source.getParent(); } return source; }