| # 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 import settings |
| from airflow.timetables.base import DataInterval, Timetable |
| from airflow.timetables.interval import CronDataIntervalTimetable, DeltaDataIntervalTimetable |
| |
| |
| def cron_timetable(expr: str) -> CronDataIntervalTimetable: |
| return CronDataIntervalTimetable(expr, settings.TIMEZONE) |
| |
| |
| def delta_timetable(delta) -> DeltaDataIntervalTimetable: |
| return DeltaDataIntervalTimetable(delta) |
| |
| |
| class CustomSerializationTimetable(Timetable): |
| def __init__(self, value: str): |
| self.value = value |
| |
| @classmethod |
| def deserialize(cls, data): |
| return cls(data["value"]) |
| |
| def __eq__(self, other) -> bool: |
| """Only for testing purposes.""" |
| if not isinstance(other, CustomSerializationTimetable): |
| return False |
| return self.value == other.value |
| |
| def serialize(self): |
| return {"value": self.value} |
| |
| @property |
| def summary(self): |
| return f"{type(self).__name__}({self.value!r})" |
| |
| def infer_manual_data_interval(self, *, run_after): |
| raise DataInterval.exact(run_after) |
| |
| def next_dagrun_info(self, *, last_automated_data_interval, restriction): |
| return None |