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.tool;
017
018import java.util.Map;
019import java.util.function.Function;
020
021public class FunctionTool extends BaseTool {
022
023    private Function<Map<String, Object>, Object> invoker;
024
025    public FunctionTool() {
026    }
027
028    @Override
029    public Object invoke(Map<String, Object> argsMap) {
030        if (invoker == null) {
031            throw new IllegalStateException("Tool invoker function is not set.");
032        }
033        return invoker.apply(argsMap);
034    }
035
036    // 允许外部设置 invoker（Builder 会用）
037    public void setInvoker(Function<Map<String, Object>, Object> invoker) {
038        this.invoker = invoker;
039    }
040}