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105 lines
3.1 KiB
105 lines
3.1 KiB
# -*- coding: utf-8 -*-
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#
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import os
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import datetime
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import sys
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import time
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from django.conf import settings
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from django.utils import timezone
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from django.core.cache import cache
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from django.db import transaction
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from celery import subtask
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from celery.signals import worker_ready, worker_shutdown, task_prerun, \
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task_postrun, after_task_publish
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from django_celery_beat.models import PeriodicTask
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from common.utils import get_logger, TeeObj, get_object_or_none
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from common.const import celery_task_pre_key
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from .utils import get_after_app_ready_tasks, get_after_app_shutdown_clean_tasks
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from ..models import CeleryTask
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logger = get_logger(__file__)
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@worker_ready.connect
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def on_app_ready(sender=None, headers=None, body=None, **kwargs):
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if cache.get("CELERY_APP_READY", 0) == 1:
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return
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cache.set("CELERY_APP_READY", 1, 10)
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logger.debug("App ready signal recv")
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tasks = get_after_app_ready_tasks()
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logger.debug("Start need start task: [{}]".format(
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", ".join(tasks))
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)
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for task in tasks:
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subtask(task).delay()
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@worker_shutdown.connect
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def after_app_shutdown(sender=None, headers=None, body=None, **kwargs):
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if cache.get("CELERY_APP_SHUTDOWN", 0) == 1:
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return
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cache.set("CELERY_APP_SHUTDOWN", 1, 10)
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tasks = get_after_app_shutdown_clean_tasks()
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logger.debug("App shutdown signal recv")
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logger.debug("Clean need cleaned period tasks: [{}]".format(
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', '.join(tasks))
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)
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PeriodicTask.objects.filter(name__in=tasks).delete()
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@after_task_publish.connect
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def after_task_publish_signal_handler(sender, headers=None, **kwargs):
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CeleryTask.objects.create(
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id=headers["id"], status=CeleryTask.WAITING, name=headers["task"]
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)
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cache.set(headers["id"], True, 3600)
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@task_prerun.connect
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def pre_run_task_signal_handler(sender, task_id=None, task=None, **kwargs):
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time.sleep(0.1)
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for i in range(5):
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if cache.get(task_id, False):
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break
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else:
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time.sleep(0.1)
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continue
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t = get_object_or_none(CeleryTask, id=task_id)
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if t is None:
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logger.warn("Not get the task: {}".format(task_id))
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return
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now = datetime.datetime.now().strftime("%Y-%m-%d")
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log_path = os.path.join(now, task_id + '.log')
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full_path = os.path.join(CeleryTask.LOG_DIR, log_path)
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if not os.path.exists(os.path.dirname(full_path)):
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os.makedirs(os.path.dirname(full_path))
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with transaction.atomic():
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t.date_start = timezone.now()
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t.status = CeleryTask.RUNNING
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t.log_path = log_path
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t.save()
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f = open(full_path, 'w')
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tee = TeeObj(f)
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sys.stdout = tee
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task.log_f = tee
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@task_postrun.connect
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def post_run_task_signal_handler(sender, task_id=None, task=None, **kwargs):
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t = get_object_or_none(CeleryTask, id=task_id)
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if t is None:
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logger.warn("Not get the task: {}".format(task_id))
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return
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with transaction.atomic():
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t.status = CeleryTask.FINISHED
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t.date_finished = timezone.now()
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t.save()
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task.log_f.flush()
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sys.stdout = task.log_f.origin_stdout
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task.log_f.close()
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