72 lines
1.7 KiB
Python
72 lines
1.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
"""
|
|
celery.app.registry
|
|
~~~~~~~~~~~~~~~~~~~
|
|
|
|
Registry of available tasks.
|
|
|
|
"""
|
|
from __future__ import absolute_import
|
|
|
|
import inspect
|
|
|
|
from importlib import import_module
|
|
|
|
from celery._state import get_current_app
|
|
from celery.exceptions import NotRegistered
|
|
from celery.five import items
|
|
|
|
__all__ = ['TaskRegistry']
|
|
|
|
|
|
class TaskRegistry(dict):
|
|
NotRegistered = NotRegistered
|
|
|
|
def __missing__(self, key):
|
|
raise self.NotRegistered(key)
|
|
|
|
def register(self, task):
|
|
"""Register a task in the task registry.
|
|
|
|
The task will be automatically instantiated if not already an
|
|
instance.
|
|
|
|
"""
|
|
self[task.name] = inspect.isclass(task) and task() or task
|
|
|
|
def unregister(self, name):
|
|
"""Unregister task by name.
|
|
|
|
:param name: name of the task to unregister, or a
|
|
:class:`celery.task.base.Task` with a valid `name` attribute.
|
|
|
|
:raises celery.exceptions.NotRegistered: if the task has not
|
|
been registered.
|
|
|
|
"""
|
|
try:
|
|
self.pop(getattr(name, 'name', name))
|
|
except KeyError:
|
|
raise self.NotRegistered(name)
|
|
|
|
# -- these methods are irrelevant now and will be removed in 4.0
|
|
def regular(self):
|
|
return self.filter_types('regular')
|
|
|
|
def periodic(self):
|
|
return self.filter_types('periodic')
|
|
|
|
def filter_types(self, type):
|
|
return dict((name, task) for name, task in items(self)
|
|
if getattr(task, 'type', 'regular') == type)
|
|
|
|
|
|
def _unpickle_task(name):
|
|
return get_current_app().tasks[name]
|
|
|
|
|
|
def _unpickle_task_v2(name, module=None):
|
|
if module:
|
|
import_module(module)
|
|
return get_current_app().tasks[name]
|