airflow runnable_exec_date_dep 源码
airflow runnable_exec_date_dep 代码
文件路径：/airflow/ti_deps/deps/runnable_exec_date_dep.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 airflow.ti_deps.deps.base_ti_dep import BaseTIDep
from airflow.utils import timezone
from airflow.utils.session import provide_session
class RunnableExecDateDep(BaseTIDep):
"""Determines whether a task's execution date is valid."""
NAME = "Execution Date"
IGNORABLE = True
@provide_session
def _get_dep_statuses(self, ti, session, dep_context):
cur_date = timezone.utcnow()
# don't consider runs that are executed in the future unless
# specified by config and schedule_interval is None
logical_date = ti.get_dagrun(session).execution_date
if logical_date > cur_date and not ti.task.dag.allow_future_exec_dates:
yield self._failing_status(
reason=(
f"Execution date {logical_date.isoformat()} is in the future "
f"(the current date is {cur_date.isoformat()})."
)
)
if ti.task.end_date and logical_date > ti.task.end_date:
yield self._failing_status(
reason=(
f"The execution date is {logical_date.isoformat()} but this is "
f"after the task's end date {ti.task.end_date.isoformat()}."
)
)
if ti.task.dag and ti.task.dag.end_date and logical_date > ti.task.dag.end_date:
yield self._failing_status(
reason=(
f"The execution date is {logical_date.isoformat()} but this is after "
f"the task's DAG's end date {ti.task.dag.end_date.isoformat()}."
)
)
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