优化DifyQueryRetrieval类，新增top_k参数以支持检索结果的数量控制，同时重构相关方法以提升性能和可维护性。更新DifyTool类，新增获取应用会话和消息信息的方法。修复DifyExporter类中的代码格式问题，调整日期参数的默认值。

rag2_0/dify/DifyQueryRetrieval.py

@@ -102,7 +102,7 @@ class DifyQueryRetrieval:
         
         return await self.retrieve_api_async(original_query, query_list, datasets)
 
-    def retrieve_api(self, original_query: str, query_list: List[str],data_set_list: List[str])->List[Dict[str, Any]]:
+    def retrieve_api(self, original_query: str, query_list: List[str],data_set_list: List[str], top_k: int = 5)->List[Dict[str, Any]]:
         all_documents=[]
         # 使用线程池替代无限制创建线程
         # 设置合理的最大线程数，这里使用min(32, len(query_list) * len(datasets))来限制
@@ -140,13 +140,13 @@ class DifyQueryRetrieval:
         
         # 对所有检索出来的文档进行重排序
         time_start = time.time()
-        processed_documents = self.data_post_processor(original_query, deduplicated_documents)
+        processed_documents = self.data_post_processor(original_query, deduplicated_documents, top_k)
         time_end = time.time()
         logging.info(f"检索后重排序耗时: {time_end - time_start:.2f}秒")
 
         return processed_documents
 
-    async def retrieve_api_async(self, original_query: str, query_list: List[str], data_set_list: List[str])->List[Dict[str, Any]]:
+    async def retrieve_api_async(self, original_query: str, query_list: List[str], data_set_list: List[str], top_k: int = 5)->List[Dict[str, Any]]:
         """
         异步版本的retrieve_api方法，使用asyncio代替线程池
         
@@ -199,16 +199,16 @@ class DifyQueryRetrieval:
         
         # 对所有检索出来的文档进行重排序
         time_start = time.time()
-        processed_documents = await self.data_post_processor_async(original_query, deduplicated_documents)
+        processed_documents = await self.data_post_processor_async(original_query, deduplicated_documents, top_k)
         time_end = time.time()
         logging.info(f"异步检索后重排序耗时: {time_end - time_start:.2f}秒")
 
         return processed_documents
 
-    def data_post_processor(self, query: str, all_documents: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+    def data_post_processor(self, query: str, all_documents: List[Dict[str, Any]], top_k: int = 5) -> List[Dict[str, Any]]:
         reranker_model = XinferenceReRankerModel()
         documents = [document['segment']['content'] for document in all_documents]
-        reranked_documents = reranker_model.rerank(query, documents, top_k=5)
+        reranked_documents = reranker_model.rerank(query, documents, top_k=top_k)
         new_all_documents = []
 
         def to_dify_document_format(document: dict)->dict:
@@ -240,7 +240,7 @@ class DifyQueryRetrieval:
             new_all_documents.append(to_dify_document_format(cur_doc_info))
         return new_all_documents
 
-    async def data_post_processor_async(self, query: str, all_documents: List[Dict[str, Any]]) -> List[Dict[str, Any]]:
+    async def data_post_processor_async(self, query: str, all_documents: List[Dict[str, Any]], top_k: int = 5) -> List[Dict[str, Any]]:
         """
         异步版本的data_post_processor方法
         
@@ -254,7 +254,7 @@ class DifyQueryRetrieval:
         reranker_model = XinferenceReRankerModel()
         documents = [document['segment']['content'] for document in all_documents]
         # 使用异步重排序方法
-        reranked_documents = await reranker_model.rerank_async(query, documents, top_k=5)
+        reranked_documents = await reranker_model.rerank_async(query, documents, top_k=top_k)
         new_all_documents = []
 
         def to_dify_document_format(document: dict)->dict:

rag2_0/dify/DifyQueryRetrieval_api.py

@@ -93,7 +93,8 @@ async def retrieve(request: RetrieveRequest):
         results = await dify_query_retrieval.retrieve_api_async(
             request.original_query, 
             query_list, 
-            data_set_list
+            data_set_list,
+            top_k=3
         )
         end_time = time.time()
         

rag2_0/dify/dify_tool.py

@@ -68,7 +68,6 @@ class PgSql:
                 self.connection.close()
                 self.connection = None
 
-
     def get_appinfo(self, appid:str)->dict | None:
         """
         根据应用 ID 从 'apps' 表中获取应用信息。
@@ -97,7 +96,6 @@ class PgSql:
             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:
         """
         根据应用 ID 和查询内容从 'messages' 表中获取消息信息。
@@ -246,6 +244,7 @@ class PgSql:
                 raise Exception(f"Error while getting conversation_messages: {error}")
             return rating
 
+
 class DifyTool:
     """
     提供用于获取 Dify 应用调试信息的工具类。
@@ -322,6 +321,21 @@ class DifyTool:
             }
         except Exception as e:
             raise Exception(f"Error in get_message_debug_info_by_query: {e}")
+    
+    def get_app_conversations(self, appid:str)->list[str] | None:
+        """
+        根据应用 ID 从 'conversations' 表中获取应用会话信息。
+        """
+        return self.dify_pgsql.get_app_conversations(appid)
+
+    def get_conversation_messages(self, conversation_id:str):
+        """
+        根据会话 ID 从 'messages' 表中获取会话消息信息。
+        """
+        return self.dify_pgsql.get_app_conversations(conversation_id)
+
+    def get_message_rating(self, msg_id):
+        return self.dify_pgsql.get_message_rating(msg_id)
 
 class BaseWorkflowChat:
     """

rag2_0/dify/export_new_dify.py

@@ -174,8 +174,6 @@ class DifyExporter:
         """
         conversations = self.dify_pgsql.get_app_conversations(appid=self.app_id)
         for conversation in conversations:
-            if conversation['conversation_id'] == '10d04219-0359-42f7-b9da-2ba039bf87a2':
-                breakpoint()
             messages = self.dify_pgsql.get_conversation_messages(conversation_id=conversation['conversation_id'])
             message_chain_new = self.process_message_chain(messages)
             if len(message_chain_new) != len(messages):
@@ -198,7 +196,7 @@ class DifyExporter:
                 message_info = self.extract_message_info(message)
                 if message_info:
                     self.message_info_list.append(message_info)
-                
+
         return self.message_info_list
     
     def save_to_excel(self, message_info_list, output_file):
@@ -323,7 +321,7 @@ if __name__ == "__main__":
                         help='Dify应用ID')
     parser.add_argument('--query_log_file', '-q', type=str, default="data/query_logs/answer_type_logs.json",
                         help='查询日志文件路径')
-    parser.add_argument('--start_date', '-s', type=str, default=None,
+    parser.add_argument('--start_date', '-s', type=str, default="2025-07-09 13",
                         help='开始日期时间，格式为YYYY-MM-DD HH，例如2025-07-08 14表示2025年7月8日14时（UTC+8时区）')
     parser.add_argument('--end_date', '-e', type=str, default=None,
                         help='结束日期时间，格式为YYYY-MM-DD HH，例如2025-07-08 18表示2025年7月8日18时（UTC+8时区）')