airflow database_callback_sink 源码
airflow database_callback_sink 代码
文件路径：/airflow/callbacks/database_callback_sink.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
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# 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.orm import Session
from airflow.callbacks.base_callback_sink import BaseCallbackSink
from airflow.callbacks.callback_requests import CallbackRequest
from airflow.models.db_callback_request import DbCallbackRequest
from airflow.utils.session import NEW_SESSION, provide_session
class DatabaseCallbackSink(BaseCallbackSink):
"""Sends callbacks to database."""
@provide_session
def send(self, callback: CallbackRequest, session: Session = NEW_SESSION) -> None:
"""Sends callback for execution."""
db_callback = DbCallbackRequest(callback=callback, priority_weight=10)
session.add(db_callback)
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