dify / api /core /app /apps /workflow /app_queue_manager.py
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from core.app.apps.base_app_queue_manager import AppQueueManager, GenerateTaskStoppedException, PublishFrom
from core.app.entities.app_invoke_entities import InvokeFrom
from core.app.entities.queue_entities import (
AppQueueEvent,
QueueErrorEvent,
QueueMessageEndEvent,
QueueStopEvent,
QueueWorkflowFailedEvent,
QueueWorkflowSucceededEvent,
WorkflowQueueMessage,
)
class WorkflowAppQueueManager(AppQueueManager):
def __init__(self, task_id: str,
user_id: str,
invoke_from: InvokeFrom,
app_mode: str) -> None:
super().__init__(task_id, user_id, invoke_from)
self._app_mode = app_mode
def _publish(self, event: AppQueueEvent, pub_from: PublishFrom) -> None:
"""
Publish event to queue
:param event:
:param pub_from:
:return:
"""
message = WorkflowQueueMessage(
task_id=self._task_id,
app_mode=self._app_mode,
event=event
)
self._q.put(message)
if isinstance(event, QueueStopEvent
| QueueErrorEvent
| QueueMessageEndEvent
| QueueWorkflowSucceededEvent
| QueueWorkflowFailedEvent):
self.stop_listen()
if pub_from == PublishFrom.APPLICATION_MANAGER and self._is_stopped():
raise GenerateTaskStoppedException()