mirror of
https://github.com/invoke-ai/InvokeAI.git
synced 2026-02-02 10:45:23 -05:00
9bd78823a3
Our events handling and implementation has a couple pain points: - Adding or removing data from event payloads requires changes wherever the events are dispatched from. - We have no type safety for events and need to rely on string matching and dict access when interacting with events. - Frontend types for socket events must be manually typed. This has caused several bugs. `fastapi-events` has a neat feature where you can create a pydantic model as an event payload, give it an `__event_name__` attr, and then dispatch the model directly. This allows us to eliminate a layer of indirection and some unpleasant complexity: - Event handler callbacks get type hints for their event payloads, and can use `isinstance` on them if needed. - Event payload construction is now the responsibility of the event itself (a pydantic model), not the service. Every event model has a `build` class method, encapsulating this logic. The build methods are provided as few args as possible. For example, `InvocationStartedEvent.build()` gets the invocation instance and queue item, and can choose the data it wants to include in the event payload. - Frontend event types may be autogenerated from the OpenAPI schema. We use the payload registry feature of `fastapi-events` to collect all payload models into one place, making it trivial to keep our schema and frontend types in sync. This commit moves the backend over to this improved event handling setup.
699 lines
24 KiB
Python
699 lines
24 KiB
Python
import sqlite3
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import threading
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from typing import Optional, Union, cast
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from invokeai.app.services.events.events_common import (
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FastAPIEvent,
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InvocationErrorEvent,
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SessionCanceledEvent,
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SessionCompleteEvent,
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register_events,
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)
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from invokeai.app.services.invoker import Invoker
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from invokeai.app.services.session_queue.session_queue_base import SessionQueueBase
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from invokeai.app.services.session_queue.session_queue_common import (
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DEFAULT_QUEUE_ID,
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QUEUE_ITEM_STATUS,
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Batch,
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BatchStatus,
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CancelByBatchIDsResult,
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CancelByQueueIDResult,
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ClearResult,
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EnqueueBatchResult,
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IsEmptyResult,
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IsFullResult,
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PruneResult,
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SessionQueueItem,
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SessionQueueItemDTO,
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SessionQueueItemNotFoundError,
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SessionQueueStatus,
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calc_session_count,
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prepare_values_to_insert,
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)
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from invokeai.app.services.shared.graph import GraphExecutionState
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from invokeai.app.services.shared.pagination import CursorPaginatedResults
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from invokeai.app.services.shared.sqlite.sqlite_database import SqliteDatabase
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class SqliteSessionQueue(SessionQueueBase):
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__invoker: Invoker
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__conn: sqlite3.Connection
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__cursor: sqlite3.Cursor
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__lock: threading.RLock
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def start(self, invoker: Invoker) -> None:
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self.__invoker = invoker
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self._set_in_progress_to_canceled()
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prune_result = self.prune(DEFAULT_QUEUE_ID)
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register_events(events={InvocationErrorEvent}, func=self._handle_error_event)
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register_events(events={SessionCompleteEvent}, func=self._handle_complete_event)
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register_events(events={SessionCanceledEvent}, func=self._handle_cancel_event)
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if prune_result.deleted > 0:
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self.__invoker.services.logger.info(f"Pruned {prune_result.deleted} finished queue items")
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def __init__(self, db: SqliteDatabase) -> None:
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super().__init__()
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self.__lock = db.lock
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self.__conn = db.conn
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self.__cursor = self.__conn.cursor()
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async def _handle_complete_event(self, event: FastAPIEvent[SessionCompleteEvent]) -> None:
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try:
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# When a queue item has an error, we get an error event, then a completed event.
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# Mark the queue item completed only if it isn't already marked completed, e.g.
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# by a previously-handled error event.
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_event_name, payload = event
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queue_item = self.get_queue_item(payload.item_id)
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if queue_item.status not in ["completed", "failed", "canceled"]:
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self._set_queue_item_status(item_id=payload.item_id, status="completed")
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except SessionQueueItemNotFoundError:
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pass
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async def _handle_error_event(self, event: FastAPIEvent[InvocationErrorEvent]) -> None:
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try:
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_event_name, payload = event
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# always set to failed if have an error, even if previously the item was marked completed or canceled
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self._set_queue_item_status(
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item_id=payload.item_id,
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status="failed",
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error_type=payload.error_type,
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error_message=payload.error_message,
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error_traceback=payload.error_traceback,
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)
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except SessionQueueItemNotFoundError:
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pass
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async def _handle_cancel_event(self, event: FastAPIEvent[SessionCanceledEvent]) -> None:
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try:
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_event_name, payload = event
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queue_item = self.get_queue_item(payload.item_id)
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if queue_item.status not in ["completed", "failed", "canceled"]:
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self._set_queue_item_status(item_id=payload.item_id, status="canceled")
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except SessionQueueItemNotFoundError:
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pass
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def _set_in_progress_to_canceled(self) -> None:
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"""
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Sets all in_progress queue items to canceled. Run on app startup, not associated with any queue.
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This is necessary because the invoker may have been killed while processing a queue item.
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"""
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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UPDATE session_queue
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SET status = 'canceled'
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WHERE status = 'in_progress';
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"""
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)
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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def _get_current_queue_size(self, queue_id: str) -> int:
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"""Gets the current number of pending queue items"""
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self.__cursor.execute(
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"""--sql
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SELECT count(*)
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FROM session_queue
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WHERE
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queue_id = ?
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AND status = 'pending'
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""",
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(queue_id,),
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)
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return cast(int, self.__cursor.fetchone()[0])
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def _get_highest_priority(self, queue_id: str) -> int:
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"""Gets the highest priority value in the queue"""
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self.__cursor.execute(
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"""--sql
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SELECT MAX(priority)
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FROM session_queue
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WHERE
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queue_id = ?
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AND status = 'pending'
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""",
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(queue_id,),
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)
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return cast(Union[int, None], self.__cursor.fetchone()[0]) or 0
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def enqueue_batch(self, queue_id: str, batch: Batch, prepend: bool) -> EnqueueBatchResult:
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try:
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self.__lock.acquire()
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# TODO: how does this work in a multi-user scenario?
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current_queue_size = self._get_current_queue_size(queue_id)
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max_queue_size = self.__invoker.services.configuration.max_queue_size
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max_new_queue_items = max_queue_size - current_queue_size
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priority = 0
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if prepend:
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priority = self._get_highest_priority(queue_id) + 1
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requested_count = calc_session_count(batch)
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values_to_insert = prepare_values_to_insert(
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queue_id=queue_id,
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batch=batch,
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priority=priority,
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max_new_queue_items=max_new_queue_items,
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)
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enqueued_count = len(values_to_insert)
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if requested_count > enqueued_count:
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values_to_insert = values_to_insert[:max_new_queue_items]
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self.__cursor.executemany(
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"""--sql
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INSERT INTO session_queue (queue_id, session, session_id, batch_id, field_values, priority, workflow)
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VALUES (?, ?, ?, ?, ?, ?, ?)
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""",
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values_to_insert,
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)
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self.__conn.commit()
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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enqueue_result = EnqueueBatchResult(
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queue_id=queue_id,
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requested=requested_count,
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enqueued=enqueued_count,
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batch=batch,
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priority=priority,
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)
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self.__invoker.services.events.emit_batch_enqueued(enqueue_result)
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return enqueue_result
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def dequeue(self) -> Optional[SessionQueueItem]:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT *
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FROM session_queue
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WHERE status = 'pending'
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ORDER BY
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priority DESC,
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item_id ASC
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LIMIT 1
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"""
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)
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result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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if result is None:
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return None
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queue_item = SessionQueueItem.queue_item_from_dict(dict(result))
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queue_item = self._set_queue_item_status(item_id=queue_item.item_id, status="in_progress")
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return queue_item
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def get_next(self, queue_id: str) -> Optional[SessionQueueItem]:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT *
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FROM session_queue
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WHERE
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queue_id = ?
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AND status = 'pending'
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ORDER BY
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priority DESC,
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created_at ASC
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LIMIT 1
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""",
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(queue_id,),
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)
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result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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if result is None:
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return None
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return SessionQueueItem.queue_item_from_dict(dict(result))
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def get_current(self, queue_id: str) -> Optional[SessionQueueItem]:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT *
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FROM session_queue
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WHERE
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queue_id = ?
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AND status = 'in_progress'
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LIMIT 1
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""",
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(queue_id,),
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)
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result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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if result is None:
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return None
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return SessionQueueItem.queue_item_from_dict(dict(result))
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def _set_queue_item_status(
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self,
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item_id: int,
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status: QUEUE_ITEM_STATUS,
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error_type: Optional[str] = None,
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error_message: Optional[str] = None,
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error_traceback: Optional[str] = None,
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) -> SessionQueueItem:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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UPDATE session_queue
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SET status = ?, error_type = ?, error_message = ?, error_traceback = ?
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WHERE item_id = ?
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""",
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(status, error_type, error_message, error_traceback, item_id),
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)
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self.__conn.commit()
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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queue_item = self.get_queue_item(item_id)
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batch_status = self.get_batch_status(queue_id=queue_item.queue_id, batch_id=queue_item.batch_id)
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queue_status = self.get_queue_status(queue_id=queue_item.queue_id)
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self.__invoker.services.events.emit_queue_item_status_changed(queue_item, batch_status, queue_status)
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return queue_item
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def is_empty(self, queue_id: str) -> IsEmptyResult:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT count(*)
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FROM session_queue
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WHERE queue_id = ?
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""",
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(queue_id,),
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)
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is_empty = cast(int, self.__cursor.fetchone()[0]) == 0
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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return IsEmptyResult(is_empty=is_empty)
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def is_full(self, queue_id: str) -> IsFullResult:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT count(*)
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FROM session_queue
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WHERE queue_id = ?
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""",
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(queue_id,),
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)
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max_queue_size = self.__invoker.services.configuration.max_queue_size
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is_full = cast(int, self.__cursor.fetchone()[0]) >= max_queue_size
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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return IsFullResult(is_full=is_full)
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def clear(self, queue_id: str) -> ClearResult:
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try:
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self.__lock.acquire()
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self.__cursor.execute(
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"""--sql
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SELECT COUNT(*)
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FROM session_queue
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WHERE queue_id = ?
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""",
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(queue_id,),
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)
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count = self.__cursor.fetchone()[0]
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self.__cursor.execute(
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"""--sql
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DELETE
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FROM session_queue
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WHERE queue_id = ?
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""",
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(queue_id,),
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)
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self.__conn.commit()
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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self.__invoker.services.events.emit_queue_cleared(queue_id)
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return ClearResult(deleted=count)
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def prune(self, queue_id: str) -> PruneResult:
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try:
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where = """--sql
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WHERE
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queue_id = ?
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AND (
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status = 'completed'
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OR status = 'failed'
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OR status = 'canceled'
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)
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"""
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self.__lock.acquire()
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self.__cursor.execute(
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f"""--sql
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SELECT COUNT(*)
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FROM session_queue
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{where};
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""",
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(queue_id,),
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)
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count = self.__cursor.fetchone()[0]
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self.__cursor.execute(
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f"""--sql
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DELETE
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FROM session_queue
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{where};
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""",
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(queue_id,),
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)
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self.__conn.commit()
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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return PruneResult(deleted=count)
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def cancel_queue_item(self, item_id: int) -> SessionQueueItem:
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queue_item = self.get_queue_item(item_id)
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if queue_item.status not in ["canceled", "failed", "completed"]:
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queue_item = self._set_queue_item_status(item_id=item_id, status="canceled")
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self.__invoker.services.events.emit_session_canceled(queue_item)
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return queue_item
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def fail_queue_item(
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self,
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item_id: int,
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error_type: str,
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error_message: str,
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error_traceback: str,
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) -> SessionQueueItem:
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queue_item = self.get_queue_item(item_id)
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if queue_item.status not in ["canceled", "failed", "completed"]:
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queue_item = self._set_queue_item_status(
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item_id=item_id,
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status="failed",
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error_type=error_type,
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error_message=error_message,
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error_traceback=error_traceback,
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)
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self.__invoker.services.events.emit_session_canceled(queue_item)
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return queue_item
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def cancel_by_batch_ids(self, queue_id: str, batch_ids: list[str]) -> CancelByBatchIDsResult:
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try:
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current_queue_item = self.get_current(queue_id)
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self.__lock.acquire()
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placeholders = ", ".join(["?" for _ in batch_ids])
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where = f"""--sql
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WHERE
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queue_id == ?
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AND batch_id IN ({placeholders})
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AND status != 'canceled'
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AND status != 'completed'
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AND status != 'failed'
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"""
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params = [queue_id] + batch_ids
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self.__cursor.execute(
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f"""--sql
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SELECT COUNT(*)
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FROM session_queue
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{where};
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""",
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tuple(params),
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)
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count = self.__cursor.fetchone()[0]
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self.__cursor.execute(
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f"""--sql
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UPDATE session_queue
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SET status = 'canceled'
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{where};
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""",
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tuple(params),
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)
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self.__conn.commit()
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if current_queue_item is not None and current_queue_item.batch_id in batch_ids:
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self.__invoker.services.events.emit_session_canceled(current_queue_item)
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batch_status = self.get_batch_status(queue_id=queue_id, batch_id=current_queue_item.batch_id)
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queue_status = self.get_queue_status(queue_id=queue_id)
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self.__invoker.services.events.emit_queue_item_status_changed(
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current_queue_item, batch_status, queue_status
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)
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except Exception:
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self.__conn.rollback()
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raise
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finally:
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self.__lock.release()
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return CancelByBatchIDsResult(canceled=count)
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|
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def cancel_by_queue_id(self, queue_id: str) -> CancelByQueueIDResult:
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try:
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current_queue_item = self.get_current(queue_id)
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self.__lock.acquire()
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where = """--sql
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WHERE
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queue_id is ?
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AND status != 'canceled'
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AND status != 'completed'
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AND status != 'failed'
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"""
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params = [queue_id]
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self.__cursor.execute(
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f"""--sql
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SELECT COUNT(*)
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FROM session_queue
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{where};
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""",
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tuple(params),
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)
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count = self.__cursor.fetchone()[0]
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self.__cursor.execute(
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f"""--sql
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UPDATE session_queue
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SET status = 'canceled'
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{where};
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""",
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tuple(params),
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)
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self.__conn.commit()
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if current_queue_item is not None and current_queue_item.queue_id == queue_id:
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self.__invoker.services.events.emit_session_canceled(current_queue_item)
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batch_status = self.get_batch_status(queue_id=queue_id, batch_id=current_queue_item.batch_id)
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queue_status = self.get_queue_status(queue_id=queue_id)
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self.__invoker.services.events.emit_queue_item_status_changed(
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current_queue_item, batch_status, queue_status
|
|
)
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
return CancelByQueueIDResult(canceled=count)
|
|
|
|
def get_queue_item(self, item_id: int) -> SessionQueueItem:
|
|
try:
|
|
self.__lock.acquire()
|
|
self.__cursor.execute(
|
|
"""--sql
|
|
SELECT * FROM session_queue
|
|
WHERE
|
|
item_id = ?
|
|
""",
|
|
(item_id,),
|
|
)
|
|
result = cast(Union[sqlite3.Row, None], self.__cursor.fetchone())
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
if result is None:
|
|
raise SessionQueueItemNotFoundError(f"No queue item with id {item_id}")
|
|
return SessionQueueItem.queue_item_from_dict(dict(result))
|
|
|
|
def set_queue_item_session(self, item_id: int, session: GraphExecutionState) -> SessionQueueItem:
|
|
try:
|
|
# Use exclude_none so we don't end up with a bunch of nulls in the graph - this can cause validation errors
|
|
# when the graph is loaded. Graph execution occurs purely in memory - the session saved here is not referenced
|
|
# during execution.
|
|
session_json = session.model_dump_json(warnings=False, exclude_none=True)
|
|
self.__lock.acquire()
|
|
self.__cursor.execute(
|
|
"""--sql
|
|
UPDATE session_queue
|
|
SET session = ?
|
|
WHERE item_id = ?
|
|
""",
|
|
(session_json, item_id),
|
|
)
|
|
self.__conn.commit()
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
return self.get_queue_item(item_id)
|
|
|
|
def list_queue_items(
|
|
self,
|
|
queue_id: str,
|
|
limit: int,
|
|
priority: int,
|
|
cursor: Optional[int] = None,
|
|
status: Optional[QUEUE_ITEM_STATUS] = None,
|
|
) -> CursorPaginatedResults[SessionQueueItemDTO]:
|
|
try:
|
|
item_id = cursor
|
|
self.__lock.acquire()
|
|
query = """--sql
|
|
SELECT item_id,
|
|
status,
|
|
priority,
|
|
field_values,
|
|
error_type,
|
|
error_message,
|
|
error_traceback,
|
|
created_at,
|
|
updated_at,
|
|
completed_at,
|
|
started_at,
|
|
session_id,
|
|
batch_id,
|
|
queue_id
|
|
FROM session_queue
|
|
WHERE queue_id = ?
|
|
"""
|
|
params: list[Union[str, int]] = [queue_id]
|
|
|
|
if status is not None:
|
|
query += """--sql
|
|
AND status = ?
|
|
"""
|
|
params.append(status)
|
|
|
|
if item_id is not None:
|
|
query += """--sql
|
|
AND (priority < ?) OR (priority = ? AND item_id > ?)
|
|
"""
|
|
params.extend([priority, priority, item_id])
|
|
|
|
query += """--sql
|
|
ORDER BY
|
|
priority DESC,
|
|
item_id ASC
|
|
LIMIT ?
|
|
"""
|
|
params.append(limit + 1)
|
|
self.__cursor.execute(query, params)
|
|
results = cast(list[sqlite3.Row], self.__cursor.fetchall())
|
|
items = [SessionQueueItemDTO.queue_item_dto_from_dict(dict(result)) for result in results]
|
|
has_more = False
|
|
if len(items) > limit:
|
|
# remove the extra item
|
|
items.pop()
|
|
has_more = True
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
return CursorPaginatedResults(items=items, limit=limit, has_more=has_more)
|
|
|
|
def get_queue_status(self, queue_id: str) -> SessionQueueStatus:
|
|
try:
|
|
self.__lock.acquire()
|
|
self.__cursor.execute(
|
|
"""--sql
|
|
SELECT status, count(*)
|
|
FROM session_queue
|
|
WHERE queue_id = ?
|
|
GROUP BY status
|
|
""",
|
|
(queue_id,),
|
|
)
|
|
counts_result = cast(list[sqlite3.Row], self.__cursor.fetchall())
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
|
|
current_item = self.get_current(queue_id=queue_id)
|
|
total = sum(row[1] for row in counts_result)
|
|
counts: dict[str, int] = {row[0]: row[1] for row in counts_result}
|
|
return SessionQueueStatus(
|
|
queue_id=queue_id,
|
|
item_id=current_item.item_id if current_item else None,
|
|
session_id=current_item.session_id if current_item else None,
|
|
batch_id=current_item.batch_id if current_item else None,
|
|
pending=counts.get("pending", 0),
|
|
in_progress=counts.get("in_progress", 0),
|
|
completed=counts.get("completed", 0),
|
|
failed=counts.get("failed", 0),
|
|
canceled=counts.get("canceled", 0),
|
|
total=total,
|
|
)
|
|
|
|
def get_batch_status(self, queue_id: str, batch_id: str) -> BatchStatus:
|
|
try:
|
|
self.__lock.acquire()
|
|
self.__cursor.execute(
|
|
"""--sql
|
|
SELECT status, count(*)
|
|
FROM session_queue
|
|
WHERE
|
|
queue_id = ?
|
|
AND batch_id = ?
|
|
GROUP BY status
|
|
""",
|
|
(queue_id, batch_id),
|
|
)
|
|
result = cast(list[sqlite3.Row], self.__cursor.fetchall())
|
|
total = sum(row[1] for row in result)
|
|
counts: dict[str, int] = {row[0]: row[1] for row in result}
|
|
except Exception:
|
|
self.__conn.rollback()
|
|
raise
|
|
finally:
|
|
self.__lock.release()
|
|
|
|
return BatchStatus(
|
|
batch_id=batch_id,
|
|
queue_id=queue_id,
|
|
pending=counts.get("pending", 0),
|
|
in_progress=counts.get("in_progress", 0),
|
|
completed=counts.get("completed", 0),
|
|
failed=counts.get("failed", 0),
|
|
canceled=counts.get("canceled", 0),
|
|
total=total,
|
|
)
|