feat: optimize the efficiency of generating chatbot conversation name (#3472)

api/core/app/apps/advanced_chat/generate_task_pipeline.py

         )
 
         self._stream_generate_routes = self._get_stream_generate_routes()
+        self._conversation_name_generate_thread = None
 
     def process(self) -> Union[ChatbotAppBlockingResponse, Generator[ChatbotAppStreamResponse, None, None]]:
         """
         db.session.refresh(self._user)
         db.session.close()
 
+        # start generate conversation name thread
+        self._conversation_name_generate_thread = self._generate_conversation_name(
+            self._conversation,
+            self._application_generate_entity.query
+        )
+
         generator = self._process_stream_response()
         if self._stream:
             return self._to_stream_response(generator)
             else:
                 continue
 
+        if self._conversation_name_generate_thread:
+            self._conversation_name_generate_thread.join()
+
     def _save_message(self) -> None:
         """
         Save message.

api/core/app/task_pipeline/easy_ui_based_generate_task_pipeline.py

             )
         )
 
+        self._conversation_name_generate_thread = None
+
     def process(self) -> Union[
         ChatbotAppBlockingResponse,
         CompletionAppBlockingResponse,
         db.session.refresh(self._message)
         db.session.close()
 
+        if self._application_generate_entity.app_config.app_mode != AppMode.COMPLETION:
+            # start generate conversation name thread
+            self._conversation_name_generate_thread = self._generate_conversation_name(
+                self._conversation,
+                self._application_generate_entity.query
+            )
+
         generator = self._process_stream_response()
         if self._stream:
             return self._to_stream_response(generator)
             else:
                 continue
 
+        if self._conversation_name_generate_thread:
+            self._conversation_name_generate_thread.join()
+
     def _save_message(self) -> None:
         """
         Save message.

api/core/app/task_pipeline/message_cycle_manage.py

+from threading import Thread
 from typing import Optional, Union
 
+from flask import Flask, current_app
+
 from core.app.entities.app_invoke_entities import (
     AdvancedChatAppGenerateEntity,
     AgentChatAppGenerateEntity,
     MessageReplaceStreamResponse,
     MessageStreamResponse,
 )
+from core.llm_generator.llm_generator import LLMGenerator
 from core.tools.tool_file_manager import ToolFileManager
 from extensions.ext_database import db
-from models.model import MessageAnnotation, MessageFile
+from models.model import AppMode, Conversation, MessageAnnotation, MessageFile
 from services.annotation_service import AppAnnotationService
 
 
     ]
     _task_state: Union[EasyUITaskState, AdvancedChatTaskState]
 
+    def _generate_conversation_name(self, conversation: Conversation, query: str) -> Optional[Thread]:
+        """
+        Generate conversation name.
+        :param conversation: conversation
+        :param query: query
+        :return: thread
+        """
+        is_first_message = self._application_generate_entity.conversation_id is None
+        extras = self._application_generate_entity.extras
+        auto_generate_conversation_name = extras.get('auto_generate_conversation_name', True)
+
+        if auto_generate_conversation_name and is_first_message:
+            # start generate thread
+            thread = Thread(target=self._generate_conversation_name_worker, kwargs={
+                'flask_app': current_app._get_current_object(),
+                'conversation_id': conversation.id,
+                'query': query
+            })
+
+            thread.start()
+
+            return thread
+
+        return None
+
+    def _generate_conversation_name_worker(self,
+                                           flask_app: Flask,
+                                           conversation_id: str,
+                                           query: str):
+        with flask_app.app_context():
+            # get conversation and message
+            conversation = (
+                db.session.query(Conversation)
+                .filter(Conversation.id == conversation_id)
+                .first()
+            )
+
+            if conversation.mode != AppMode.COMPLETION.value:
+                app_model = conversation.app
+                if not app_model:
+                    return
+
+                # generate conversation name
+                try:
+                    name = LLMGenerator.generate_conversation_name(app_model.tenant_id, query)
+                    conversation.name = name
+                except:
+                    pass
+
+                db.session.merge(conversation)
+                db.session.commit()
+                db.session.close()
+
     def _handle_annotation_reply(self, event: QueueAnnotationReplyEvent) -> Optional[MessageAnnotation]:
         """
         Handle annotation reply.

api/events/event_handlers/__init__.py

 from .create_site_record_when_app_created import handle
 from .deduct_quota_when_messaeg_created import handle
 from .delete_installed_app_when_app_deleted import handle
-from .generate_conversation_name_when_first_message_created import handle
 from .update_app_dataset_join_when_app_model_config_updated import handle
 from .update_provider_last_used_at_when_messaeg_created import handle
 from .update_app_dataset_join_when_app_published_workflow_updated import handle

api/events/event_handlers/generate_conversation_name_when_first_message_created.py

-from core.llm_generator.llm_generator import LLMGenerator
-from events.message_event import message_was_created
-from extensions.ext_database import db
-from models.model import AppMode
-
-
-@message_was_created.connect
-def handle(sender, **kwargs):
-    message = sender
-    conversation = kwargs.get('conversation')
-    is_first_message = kwargs.get('is_first_message')
-    extras = kwargs.get('extras', {})
-
-    auto_generate_conversation_name = True
-    if extras:
-        auto_generate_conversation_name = extras.get('auto_generate_conversation_name', True)
-
-    if auto_generate_conversation_name and is_first_message:
-        if conversation.mode != AppMode.COMPLETION.value:
-            app_model = conversation.app
-            if not app_model:
-                return
-
-            # generate conversation name
-            try:
-                name = LLMGenerator.generate_conversation_name(app_model.tenant_id, message.query)
-                conversation.name = name
-            except:
-                pass
-                
-            db.session.merge(conversation)
-            db.session.commit()