Source code for airflow.dag.base_dag

# -*- coding: utf-8 -*-
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from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals

from abc import ABCMeta, abstractmethod, abstractproperty

[docs]class BaseDag(object): """ Base DAG object that both the SimpleDag and DAG inherit. """ __metaclass__ = ABCMeta @abstractproperty def dag_id(self): """ :return: the DAG ID :rtype: unicode """ raise NotImplementedError() @abstractproperty def task_ids(self): """ :return: A list of task IDs that are in this DAG :rtype: List[unicode] """ raise NotImplementedError() @abstractproperty def full_filepath(self): """ :return: The absolute path to the file that contains this DAG's definition :rtype: unicode """ raise NotImplementedError() @abstractmethod def concurrency(self): """ :return: maximum number of tasks that can run simultaneously from this DAG :rtype: int """ raise NotImplementedError() @abstractmethod def is_paused(self): """ :return: whether this DAG is paused or not :rtype: bool """ raise NotImplementedError() @abstractmethod def pickle_id(self): """ :return: The pickle ID for this DAG, if it has one. Otherwise None. :rtype: unicode """ raise NotImplementedError
[docs]class BaseDagBag(object): """ Base object that both the SimpleDagBag and DagBag inherit. """ @abstractproperty def dag_ids(self): """ :return: a list of DAG IDs in this bag :rtype: List[unicode] """ raise NotImplementedError() @abstractmethod def get_dag(self, dag_id): """ :return: whether the task exists in this bag :rtype: airflow.dag.base_dag.BaseDag """ raise NotImplementedError()