001/*
002 *  Copyright (c) 2023-2026, Agents-Flex (fuhai999@gmail.com).
003 *  <p>
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *  <p>
008 *  http://www.apache.org/licenses/LICENSE-2.0
009 *  <p>
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package com.agentsflex.core.util;
017
018import com.agentsflex.core.message.UserMessage;
019import com.agentsflex.core.message.Message;
020
021import java.util.List;
022
023public class MessageUtil {
024
025    public static UserMessage findLastUserMessage(List<Message> messages) {
026        if (messages == null || messages.isEmpty()) {
027            return null;
028        }
029        for (int i = messages.size() - 1; i >= 0; i--) {
030            Message message = messages.get(i);
031            if (message instanceof UserMessage) {
032                return (UserMessage) message;
033            }
034        }
035        return null;
036    }
037
038}