From 714beff8adb5a9ea2a787bfc4d9f39b6c93f0d27 Mon Sep 17 00:00:00 2001
From: chentianrui <chentianrui@noreply.localhost>
Date: Tue, 24 Jun 2025 14:46:17 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8F=96=E6=B6=88=E4=B8=A4=E6=AC=A1=E5=88=9B?=
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---
 src/code_executor.py | 126 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 126 insertions(+)
 create mode 100644 src/code_executor.py

diff --git a/src/code_executor.py b/src/code_executor.py
new file mode 100644
index 0000000..d363dd5
--- /dev/null
+++ b/src/code_executor.py
@@ -0,0 +1,126 @@
+import logging
+from langchain_core.output_parsers import StrOutputParser
+from langchain_experimental.utilities import PythonREPL
+from langchain_core.tools import Tool
+from langchain_experimental.tools import PythonREPLTool
+from project_implementation import ProjectBuilder
+import sys
+import io
+import traceback
+
+logger = logging.getLogger("BoweiAgent.CodeExecutor")
+
+
+class CodeExecutor:
+    def __init__(self, prompts, llm_client, max_retries=3, neo4j_driver=None):
+        self.llm_client = llm_client
+        self.prompts = prompts
+        self.max_retries = max_retries
+        self.output_parser = StrOutputParser()
+        self.neo4j_driver = neo4j_driver  # 存储驱动实例
+
+    def generate_code(self, user_request: str, context: str = "", bowei_api_docs: str = "") -> str:
+        logger.info(f"开始生成代码，访问请求：{user_request}")
+        prompt = self.prompts.code_gen_prompt.format_prompt(
+            user_request=user_request, context=context, bowei_api_docs=bowei_api_docs
+        )
+
+        response = self.llm_client.invoke(prompt.to_messages())
+        code = self.output_parser.parse(response)
+        logger.debug(f"生成的代码内容：\n{code}")
+        return code
+
+    def fix_code(self, code: str, error: str) -> str:
+        logger.warning(f"代码执行出错，开始修复。错误信息：{error}")
+        prompt = self.prompts.code_fix_prompt.format_prompt(code=code, error=error)
+        response = self.llm_client.invoke(prompt.to_messages())
+        fixed_code = self.output_parser.parse(response)
+        logger.debug(f"修复后的代码内容：\n{fixed_code}")
+        return fixed_code
+
+    def execute_code(self, code_str):
+        """封装代码执行逻辑"""
+        logger.debug(f"开始执行代码: {code_str}")
+        try:
+            namespace = {
+                "ProjectBuilder": ProjectBuilder,
+                "project_implementation": __import__("project_implementation"),
+                "project": __import__("project"),
+            }
+
+            # 如果有驱动实例，先创建项目实例并传入驱动
+            if self.neo4j_driver:
+                namespace["project_instance"] = ProjectBuilder.build(self.neo4j_driver)
+
+            old_stdout = sys.stdout
+            redirected_output = io.StringIO()
+            sys.stdout = redirected_output
+
+            exec(code_str, namespace)
+
+            # 确保neo4j_find_function存在
+            if "project_get_calculate_function" not in namespace:
+                raise ValueError("代码中未定义project_get_calculate_function函数")
+
+            result_tuple = namespace["project_get_calculate_function"]()
+
+            sys.stdout = old_stdout
+            output = redirected_output.getvalue().strip()
+
+            if not isinstance(result_tuple, tuple) or len(result_tuple) != 4:
+                raise ValueError("函数应返回包含4个元素的元组(status, data, error, helper_info)")
+
+            status, data, error, helper_info = result_tuple
+
+            logger.info(f"执行结果: status={status}, data={data}, error={error}")
+
+            return {
+                "status": status,
+                "data": data,
+                "error": error,
+                "helper_info": helper_info,
+                "output": output,
+            }
+
+        except Exception as e:
+            # 确保恢复stdout
+            sys.stdout = old_stdout
+            logger.error(f"执行代码时出错: {e}")
+            logger.error(traceback.format_exc())
+
+            return {
+                "status": "error",
+                "error": str(e),
+                "helper_info": [],
+                "traceback": traceback.format_exc(),
+            }
+
+    def generate_and_run_code(self, user_request: str, context: str = "", bowei_api_docs: str = "") -> str:
+        code = self.generate_code(user_request, context, bowei_api_docs)
+        logger.info("开始执行生成的代码")
+
+        pre_code = ""
+        error_msg = ""
+        prev_happend_error = False
+        for attempt in range(self.max_retries):
+            try:
+                if prev_happend_error:
+                    logger.error(f"代码执行失败，尝试第 {attempt+1} 次修复。错误信息：{error_msg}")
+                    code = self.fix_code(pre_code, error_msg)
+
+                import re
+
+                pre_code = re.sub(r"^```python\s*|\s*```$", "", code.content, flags=re.MULTILINE)
+                result = self.execute_code(pre_code)
+                if result["status"] == "success":
+                    logger.info(f"代码执行成功，结果： {result['data']}")
+                    return result["data"]
+                else:
+                    error_msg = result.get("error", "未知错误")
+                    prev_happend_error = True
+            except Exception as e:
+                error_msg = str(e)
+                prev_happend_error = True
+
+        logger.error(f"代码执行失败，超过最大重试次数 {self.max_retries}")
+        return f"代码执行失败，超过最大重试次数 {self.max_retries}。\n最后一次错误信息：\n{error_msg}"