更改项目名称为"rag2_0"，更新相关依赖项名称，增强PgSql类的线程安全性，添加锁机制以确保数据库连接的安全关闭，同时优化DifyTool类的资源管理，确保在对象销毁时自动关闭数据库连接。

pyproject.toml

@@ -1,5 +1,5 @@
 [project]
-name = "queryrewrite"
+name = "rag2_0"
 version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"

rag2_0/dify/dify_client/__init__.py

@@ -1 +1,4 @@
-from dify_client.client import ChatClient, CompletionClient, DifyClient
+
+__all__ = ["ChatClient", "CompletionClient", "DifyClient"]
+
+from .client import ChatClient, CompletionClient, DifyClient

rag2_0/dify/dify_tool.py

@@ -7,12 +7,13 @@ from concurrent.futures import ThreadPoolExecutor, as_completed
 from rag2_0.dify.dify_client import ChatClient
 from pydantic import BaseModel, Field
 from langchain.output_parsers import PydanticOutputParser
-
+from threading import Lock
 
 class ContentSource(BaseModel):
     score: int = Field(description="相关性分数")
     reason: str = Field(description="评分理由")
 
+
 class PgSql:
     """
     用于连接和操作 PostgreSQL 数据库的类。
@@ -21,6 +22,7 @@ class PgSql:
     主要用于从 Dify 应用相关的表中获取数据。
     """
     def __init__(self):
+        self.pg_sql_lock = Lock()
         """
         初始化 PgSql 实例并建立数据库连接。
         """
@@ -53,8 +55,10 @@ class PgSql:
 
         如果存在活动的连接，则关闭它。
         """
-        if self.connection:
+        with self.pg_sql_lock:
-            self.connection.close()
+            if self.connection:
+                self.connection.close()
+                self.connection = None
 
 
     def get_appinfo(self, appid:str)->dict | None:
@@ -68,21 +72,22 @@ class PgSql:
             一个字典，其中键是列名，值是对应的应用数据。
             如果未找到应用或发生错误，则返回 None。
         """
-        try:
+        with self.pg_sql_lock:
-            with self.connection.cursor() as cursor:
+            try:
-                cursor.execute(
+                with self.connection.cursor() as cursor:
-                    """
+                    cursor.execute(
-                    SELECT * FROM apps WHERE id = %s
+                        """
-                    """,
+                        SELECT * FROM apps WHERE id = %s
-                    (appid,)
+                        """,
-                )
+                        (appid,)
-                result = cursor.fetchone()
+                    )
-                if result:
+                    result = cursor.fetchone()
-                    colnames = [desc[0] for desc in cursor.description]
+                    if result:
-                    return dict(zip(colnames, result))
+                        colnames = [desc[0] for desc in cursor.description]
-                return None
+                        return dict(zip(colnames, result))
-        except (Exception, psycopg2.Error) as error:
+                    return None
-            raise Exception(f"Error while getting tenant_id by appid: {error}")
+            except (Exception, psycopg2.Error) as error:
+                raise Exception(f"Error while getting tenant_id by appid: {error}")
 
 
     def get_messages_info(self, appid:str, query:str)->dict | None:
@@ -97,41 +102,43 @@ class PgSql:
             一个字典，其中键是列名，值是对应的消息数据。
             如果未找到消息或发生错误，则返回 None。
         """
-        try:
+        with self.pg_sql_lock:
-            with self.connection.cursor() as cursor:
+            try:
-                cursor.execute(
+                with self.connection.cursor() as cursor:
-                    """
+                    cursor.execute(
-                    SELECT * FROM messages WHERE app_id = %s AND query = %s ORDER BY created_at DESC
+                        """
-                    """,
+                        SELECT * FROM messages WHERE app_id = %s AND query = %s ORDER BY created_at DESC
-                    (appid, query)
+                        """,
-                )
+                        (appid, query)
-                result = cursor.fetchone()
+                    )
-                if result:
+                    result = cursor.fetchone()
-                    colnames = [desc[0] for desc in cursor.description]
+                    if result:
-                    return dict(zip(colnames, result))
+                        colnames = [desc[0] for desc in cursor.description]
-                return None
+                        return dict(zip(colnames, result))
-        except (Exception, psycopg2.Error) as error:
+                    return None
-            raise Exception(f"Error while getting messages_info: {error}")
+            except (Exception, psycopg2.Error) as error:
+                raise Exception(f"Error while getting messages_info: {error}")
 
     def get_messages_info_by_id(self, message_id:str)->dict | None:
         """
         根据消息 ID 从 'messages' 表中获取消息信息。
         """
-        try:
+        with self.pg_sql_lock:
-            with self.connection.cursor() as cursor:
+            try:
-                cursor.execute(
+                with self.connection.cursor() as cursor:
-                    """
+                    cursor.execute(
-                    SELECT * FROM messages WHERE id = %s
+                        """
-                    """,
+                        SELECT * FROM messages WHERE id = %s
-                    (message_id, )
+                        """,
-                )
+                        (message_id, )
-                result = cursor.fetchone()
+                    )
-                if result:
+                    result = cursor.fetchone()
-                    colnames = [desc[0] for desc in cursor.description]
+                    if result:
-                    return dict(zip(colnames, result))
+                        colnames = [desc[0] for desc in cursor.description]
-                return None
+                        return dict(zip(colnames, result))
-        except (Exception, psycopg2.Error) as error:
+                    return None
-            raise Exception(f"Error while getting messages_info by id: {error}")
+            except (Exception, psycopg2.Error) as error:
+                raise Exception(f"Error while getting messages_info by id: {error}")
 
     def get_workflow_node_executions_info(self, workflow_run_id:str)->list[dict] | None:
         """
@@ -144,21 +151,22 @@ class PgSql:
             一个字典，其中键是列名，值是对应的节点执行数据。
             如果未找到执行信息或发生错误，则返回 None。
         """
-        try:
+        with self.pg_sql_lock:
-            with self.connection.cursor() as cursor:
+            try:
-                cursor.execute(
+                with self.connection.cursor() as cursor:
-                    """
+                    cursor.execute(
-                    SELECT * FROM workflow_node_executions WHERE workflow_run_id = %s
+                        """
-                    """,
+                        SELECT * FROM workflow_node_executions WHERE workflow_run_id = %s
-                    (workflow_run_id,)
+                        """,
-                )
+                        (workflow_run_id,)
+                    )
                 result = cursor.fetchall()
                 if result:
                     colnames = [desc[0] for desc in cursor.description]
                     return [dict(zip(colnames, row)) for row in result]
                 return None
-        except (Exception, psycopg2.Error) as error:
+            except (Exception, psycopg2.Error) as error:
-            raise Exception(f"Error while getting workflow_node_executions_info: {error}")
+                raise Exception(f"Error while getting workflow_node_executions_info: {error}")
 
 class DifyTool:
     """
@@ -167,17 +175,30 @@ class DifyTool:
     该类利用 PgSql 类从数据库中检索与特定应用和查询相关的
     应用信息、消息详情以及工作流节点执行情况。
     """
-    @staticmethod
+
-    def get_message_debug_info_by_id(message_id:str)->dict | None:
+    def __init__(self):
+        self.dify_pgsql = PgSql()
+
+    def __del__(self):
+        """
+        析构函数，在对象被销毁时自动关闭数据库连接。
+        确保在对象生命周期结束时释放数据库资源。
+        """
+        try:
+            self.dify_pgsql.close_connection()
+        except Exception as e:
+            # 析构函数中的异常不应该传播，所以这里只是简单记录
+            print(f"关闭数据库连接时出错: {e}")
+    
+    def get_message_debug_info_by_id(self, message_id:str)->dict | None:
         """
         根据消息 ID 从 'messages' 表中获取消息信息。
         """
-        dify_pgsql = PgSql()
         try:
-            messages_info = dify_pgsql.get_messages_info_by_id(message_id)
+            messages_info = self.dify_pgsql.get_messages_info_by_id(message_id)
             if not messages_info:
                 return None
-            workflow_node_executions_info = dify_pgsql.get_workflow_node_executions_info(messages_info['workflow_run_id'])
+            workflow_node_executions_info = self.dify_pgsql.get_workflow_node_executions_info(messages_info['workflow_run_id'])
             if not workflow_node_executions_info:
                 return None
             return {
@@ -186,12 +207,8 @@ class DifyTool:
             }
         except Exception as e:
             raise Exception(f"Error in get_message_debug_info_by_id: {e}")
-        finally:
-            dify_pgsql.close_connection()
     
-
+    def get_message_debug_info_by_query(self, appid:str, query:str)->dict:
-    @staticmethod
-    def get_message_debug_info_by_query(appid:str, query:str)->dict:
         """
         获取指定应用和查询相关的调试信息。
 
@@ -207,15 +224,14 @@ class DifyTool:
             "workflow_node_executions_info"键的字典，分别对应
             查询到的应用数据、消息数据和节点执行数据。
         """
-        dify_pgsql = PgSql()
         try:
-            appinfo = dify_pgsql.get_appinfo(appid)
+            appinfo = self.dify_pgsql.get_appinfo(appid)
             if not appinfo:
-                return None
+                return None 
-            messages_info = dify_pgsql.get_messages_info(appid, query)
+            messages_info = self.dify_pgsql.get_messages_info(appid, query)
             if not messages_info:
                 return None
-            workflow_node_executions_info = dify_pgsql.get_workflow_node_executions_info(messages_info['workflow_run_id'])
+            workflow_node_executions_info = self.dify_pgsql.get_workflow_node_executions_info(messages_info['workflow_run_id'])
             if not workflow_node_executions_info:
                 return None
             return {
@@ -225,8 +241,6 @@ class DifyTool:
             }
         except Exception as e:
             raise Exception(f"Error in get_message_debug_info_by_query: {e}")
-        finally:
-            dify_pgsql.close_connection()
 
 class BaseWorkflowChat:
     """
@@ -242,6 +256,14 @@ class BaseWorkflowChat:
         """
         self.chat_client = ChatClient(api_key=api_key, base_url=base_url)
         self.content_source_parser = PydanticOutputParser(pydantic_object=ContentSource)
+        self.dify_tool = DifyTool()
+
+    def __del__(self):
+        """
+        析构函数，在对象被销毁时自动关闭数据库连接。
+        确保在对象生命周期结束时释放数据库资源。
+        """
+        self.dify_tool.close_connection()
         
     def create_chat_message(self, query: str):
         """
@@ -369,6 +391,9 @@ class NewWorkflowChat(BaseWorkflowChat):
     """
     新工作流对话类，用于调用新工作流发送对话并解析获取相关数据
     """
+    def __init__(self, api_key: str, base_url: str):
+        super().__init__(api_key, base_url)
+
     def process_question(self, query: str) -> dict:
         """
         处理问题，获取新工作流的回答和相关信息
@@ -425,7 +450,7 @@ class NewWorkflowChat(BaseWorkflowChat):
         reranker_sorce=[]
         try:
             # 先取出重排得分
-            message_info = DifyTool.get_message_debug_info_by_id(message_id=message_id)
+            message_info = self.dify_tool.get_message_debug_info_by_id(message_id=message_id)
             for workflow_node in message_info["workflow_node_executions_info"]:
                 if workflow_node["title"] == "软件知识检索聚合":
                     retrieve_outputs = json.loads(workflow_node["inputs"])["result"]
@@ -470,6 +495,10 @@ class OldWorkFlowChat(BaseWorkflowChat):
     """
     旧工作流对话类，用于调用旧工作流发送对话并解析获取相关数据
     """
+
+    def __init__(self, api_key: str, base_url: str):
+        super().__init__(api_key, base_url)
+
     def process_question(self, query: str) -> dict:
         """
         处理问题，获取旧工作流的回答和相关信息
@@ -520,7 +549,7 @@ class OldWorkFlowChat(BaseWorkflowChat):
         rewrite_query = ""
         
         try:
-            message_info = DifyTool.get_message_debug_info_by_id(message_id=message_id)
+            message_info = self.dify_tool.get_message_debug_info_by_id(message_id=message_id)
             for workflow_node in message_info["workflow_node_executions_info"]:
                 if workflow_node["title"] == "知识检索结果后处理":
                     outputs = json.loads(workflow_node["outputs"])  
@@ -538,8 +567,4 @@ class OldWorkFlowChat(BaseWorkflowChat):
         } 
 
 if __name__ == "__main__":
-    try:
+    pass
-        result = DifyTool.get_message_debug_info_by_query("ccf92b97-2789-4a3f-90e0-135a869a37c5", "电力建设计价通软件,导入结算后没有暂列金怎么办？要手动添加么？")
-        print(result)
-    except Exception as e:
-        print(f"执行出错: {e}")

rag2_0/dify/test_dify_chatapi.py

@@ -69,6 +69,14 @@ class DifyComparisonTester:
         else:
             self.wiki_excel = None
         
+        self.dify_tool = DifyTool()
+
+    def __del__(self):
+        """
+        析构函数，在对象被销毁时自动关闭数据库连接。
+        确保在对象生命周期结束时释放数据库资源。
+        """
+        self.dify_tool.close_connection()
 
     def get_llm(self):
         api_key = os.getenv("OPENAI_API_KEY")
@@ -381,7 +389,7 @@ content: "{content}"
         """
         try:
             # 使用DifyTool直接获取消息信息
-            new_message_info = DifyTool.get_message_debug_info_by_id(message_id=new_message_id)
+            new_message_info = self.dify_tool.get_message_debug_info_by_id(message_id=new_message_id)
             
             # 初始化变量
             retrieve_title = []
@@ -428,7 +436,7 @@ content: "{content}"
         """
         try:
             # 使用DifyTool直接获取消息信息
-            old_message_info = DifyTool.get_message_debug_info_by_id(message_id=old_message_id)
+            old_message_info = self.dify_tool.get_message_debug_info_by_id(message_id=old_message_id)
             
             # 初始化变量
             retrieve_title = []

uv.lock

@@ -1416,7 +1416,7 @@ wheels = [
 ]
 
 [[package]]
-name = "queryrewrite"
+name = "rag2-0"
 version = "0.1.0"
 source = { virtual = "." }
 dependencies = [