Source code for airflow.models.log

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from __future__ import annotations

from sqlalchemy import Column, Index, Integer, String, Text

from airflow.models.base import Base, StringID
from airflow.utils import timezone
from airflow.utils.sqlalchemy import UtcDateTime

[docs]class Log(Base): """Used to actively log events to the database"""
[docs] __tablename__ = "log"
[docs] id = Column(Integer, primary_key=True)
[docs] dttm = Column(UtcDateTime)
[docs] dag_id = Column(StringID())
[docs] task_id = Column(StringID())
[docs] map_index = Column(Integer)
[docs] event = Column(String(30))
[docs] execution_date = Column(UtcDateTime)
[docs] owner = Column(String(500))
[docs] extra = Column(Text)
[docs] __table_args__ = ( Index("idx_log_dag", dag_id), Index("idx_log_event", event),
) def __init__(self, event, task_instance=None, owner=None, extra=None, **kwargs): self.dttm = timezone.utcnow() self.event = event self.extra = extra task_owner = None if task_instance: self.dag_id = task_instance.dag_id self.task_id = task_instance.task_id self.execution_date = task_instance.execution_date self.map_index = task_instance.map_index if getattr(task_instance, "task", None): task_owner = task_instance.task.owner if "task_id" in kwargs: self.task_id = kwargs["task_id"] if "dag_id" in kwargs: self.dag_id = kwargs["dag_id"] if kwargs.get("execution_date"): self.execution_date = kwargs["execution_date"] if "map_index" in kwargs: self.map_index = kwargs["map_index"] self.owner = owner or task_owner
[docs] def __str__(self) -> str: return f"Log({self.event}, {self.task_id}, {self.owner}, {self.extra})"

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