Source code for airflow.providers.redis.sensors.redis_key

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from typing import TYPE_CHECKING, Sequence

from airflow.providers.redis.hooks.redis import RedisHook
from airflow.sensors.base import BaseSensorOperator

if TYPE_CHECKING:
    from airflow.utils.context import Context


[docs]class RedisKeySensor(BaseSensorOperator):
    """Checks for the existence of a key in a Redis"""

[docs]    template_fields: Sequence[str] = ('key',)
[docs]    ui_color = '#f0eee4'

    def __init__(self, *, key: str, redis_conn_id: str, **kwargs) -> None:
        super().__init__(**kwargs)
        self.redis_conn_id = redis_conn_id
        self.key = key

[docs]    def poke(self, context: 'Context') -> bool:
        self.log.info('Sensor checks for existence of key: %s', self.key)
        return RedisHook(self.redis_conn_id).get_conn().exists(self.key)