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.model.chat;
017
018import com.agentsflex.core.model.chat.response.AiMessageResponse;
019
020/**
021 * 聊天模型请求拦截器。
022 * <p>
023 * 通过责任链模式，在 LLM 调用前后插入自定义逻辑。
024 * 支持同步（{@link #intercept}）和流式（{@link #interceptStream}）两种模式。
025 */
026public interface ChatInterceptor {
027
028    /**
029     * 拦截同步聊天请求。
030     */
031    AiMessageResponse intercept(BaseChatModel<?> chatModel, ChatContext context, SyncChain chain);
032
033    /**
034     * 拦截流式聊天请求。
035     */
036    void interceptStream(BaseChatModel<?> chatModel, ChatContext context, StreamResponseListener listener, StreamChain chain);
037}