Files
django-q2/django_q/helpers.py
2023-03-31 02:09:54 +02:00

44 lines
1.4 KiB
Python

from copy import Error
from django_q.worker import WorkerProcess
from django_q.monitor import Monitor
from django_q.models import Task
from typing import Optional, Sequence, Tuple
from django_q.conf import logger
from django_q.queue_task import QueueTask
from django_q.puller import Puller
from django_q.scheduler import Scheduler
def run_scheduler_once(broker=None) -> None:
Scheduler.schedule_tasks(broker)
def get_scheduled_tasks(broker=None) -> Sequence[QueueTask]:
try:
return Puller.get_tasks_from_broker(broker=broker)
except ValueError:
logger.exception("Couldn't get items from broker")
return []
def run_task(task=None) -> QueueTask:
if task is None:
scheduled_tasks = get_scheduled_tasks()
if not len(scheduled_tasks):
raise ValueError("No tasks scheduled and no task given to run for worker")
task = scheduled_tasks[0]
return WorkerProcess.run_task(task)
def save_task(task, broker=None) -> Tuple[QueueTask, Optional[Task]]:
return Monitor.save_task(task, broker)
def run_cluster_once(workers, tasks=[], broker=None) -> None:
if not len(tasks):
run_scheduler_once(broker=broker)
tasks = get_scheduled_tasks(broker=broker)
for idx, worker in enumerate(range(workers)):
if len(tasks) >= idx + 1:
task = run_task(tasks[idx])
save_task(task, broker=broker)