content: /**
   * Copyright (C) 2024 AIDC-AI
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.alibaba.langengine.demo.callback.support;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.TypeReference;
  import com.alibaba.langengine.core.languagemodel.BaseLanguageModel;
  import com.alibaba.langengine.core.tool.StructuredTool;
  import com.alibaba.langengine.core.tool.ToolExecuteResult;
  import com.alibaba.langengine.core.util.PythonUtils;
  import com.alibaba.langengine.tool.PythonCodeConstants;
  import lombok.Data;
  import lombok.extern.slf4j.Slf4j;
  
  import java.util.Map;
  
  @Data
  @Slf4j
  public class MyLLMMathAdvanceTool extends StructuredTool {
  
      private BaseLanguageModel llm;
  
      public MyLLMMathAdvanceTool() {
          setName("Calculator");
          setDescription("Useful for when you need to answer questions about math.");
      }
  
      @Override
      public ToolExecuteResult execute(String toolInput) {
  //        throw new RuntimeException("LLMMathAdvanceTool error.");
          Map<String, Object> expression = JSON.parseObject(toolInput, new TypeReference<Map>(){});
          if(expression != null && expression.containsKey("expression")) {
              toolInput = (String) expression.get("expression");
          }
          toolInput = toolInput.replaceAll("\\^", "**");
          String returnString = PythonUtils.invokePythonCode(PythonCodeConstants.LLMMATH_PYTHON_CODE, toolInput);
          return new ToolExecuteResult("Answer: " + returnString);
      }
  
      public static void main(String[] args) {
          MyLLMMathAdvanceTool llmMathAdvanceTool = new MyLLMMathAdvanceTool();
          ToolExecuteResult toolExecuteResult = llmMathAdvanceTool.execute("3^0.43");
          System.out.println("toolExecuteResult:" + toolExecuteResult.getOutput());
      }
  }
  