/** 获取所有的停止词 */
public Set<String> allStopwords() {
Node<Void> root = stopWords.getRoot();
final List<Character> list = new ArrayList<>();
root.childHandle(
new NodeChildHandle<Void>() {
@Override
public boolean onHandle(Node<Void> child) {
list.add(child.getChar());
return true;
}
});
Set<String> allStopWords = new HashSet<>();
for (Character c : list) {
List<Map.Entry<String, Void>> ret = stopWords.prefixSearch(c.toString());
if (ret != null) {
for (Map.Entry<String, Void> e : ret) {
allStopWords.add(e.getKey());
}
}
}
return allStopWords;
}
/** 判断是否为停止词 */
public static boolean isStopword(char[] text, int off, int len) {
Node node = INSTANCE.getInstance().stopWords.getNode(text, off, len);
return node != null && node.accept();
}