Source code for airflow.sensors.time_sensor

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from __future__ import annotations

import datetime
from typing import TYPE_CHECKING, NoReturn

from airflow.sensors.base import BaseSensorOperator
from airflow.triggers.temporal import DateTimeTrigger
from airflow.utils import timezone

if TYPE_CHECKING:
    from airflow.utils.context import Context


[docs]class TimeSensor(BaseSensorOperator): """ Waits until the specified time of the day. :param target_time: time after which the job succeeds .. seealso:: For more information on how to use this sensor, take a look at the guide: :ref:`howto/operator:TimeSensor` """ def __init__(self, *, target_time: datetime.time, **kwargs) -> None: super().__init__(**kwargs) self.target_time = target_time
[docs] def poke(self, context: Context) -> bool: self.log.info("Checking if the time (%s) has come", self.target_time) return timezone.make_naive(timezone.utcnow(), self.dag.timezone).time() > self.target_time
[docs]class TimeSensorAsync(BaseSensorOperator): """ Waits until the specified time of the day. This frees up a worker slot while it is waiting. :param target_time: time after which the job succeeds .. seealso:: For more information on how to use this sensor, take a look at the guide: :ref:`howto/operator:TimeSensorAsync` """ def __init__(self, *, target_time: datetime.time, **kwargs) -> None: super().__init__(**kwargs) self.target_time = target_time aware_time = timezone.coerce_datetime( datetime.datetime.combine(datetime.datetime.today(), self.target_time, self.dag.timezone) ) self.target_datetime = timezone.convert_to_utc(aware_time)
[docs] def execute(self, context: Context) -> NoReturn: trigger = DateTimeTrigger(moment=self.target_datetime) self.defer( trigger=trigger, method_name="execute_complete", )
[docs] def execute_complete(self, context, event=None) -> None: """Execute when the trigger fires - returns immediately.""" return None

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