airflow log 源码
airflow log 代码
文件路径：/airflow/models/log.py
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
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
class Log(Base):
"""Used to actively log events to the database"""
__tablename__ = "log"
id = Column(Integer, primary_key=True)
dttm = Column(UtcDateTime)
dag_id = Column(StringID())
task_id = Column(StringID())
map_index = Column(Integer)
event = Column(String(30))
execution_date = Column(UtcDateTime)
owner = Column(String(500))
extra = Column(Text)
__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
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