Coverage for /pythoncovmergedfiles/medio/medio/usr/local/lib/python3.11/site-packages/airflow/sdk/definitions/timetables/assets.py: 68%

1# Licensed to the Apache Software Foundation (ASF) under one 

2# or more contributor license agreements. See the NOTICE file 

3# distributed with this work for additional information 

4# regarding copyright ownership. The ASF licenses this file 

5# to you under the Apache License, Version 2.0 (the 

6# "License"); you may not use this file except in compliance 

7# with the License. You may obtain a copy of the License at 

8# 

9# http://www.apache.org/licenses/LICENSE-2.0 

10# 

11# Unless required by applicable law or agreed to in writing, 

12# software distributed under the License is distributed on an 

13# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 

14# KIND, either express or implied. See the License for the 

15# specific language governing permissions and limitations 

16# under the License. 

17 

18from __future__ import annotations 

19 

20from typing import TYPE_CHECKING 

21 

22import attrs 

23 

24from airflow.sdk.bases.timetable import BaseTimetable 

25from airflow.sdk.definitions.asset import AssetAll, BaseAsset 

26 

27if TYPE_CHECKING: 

28 from collections.abc import Collection 

29 

30 from airflow.sdk import Asset 

31 from airflow.sdk.definitions.partition_mapper.base import PartitionMapper 

32 

33 

34@attrs.define 

35class AssetTriggeredTimetable(BaseTimetable): 

36 """ 

37 Timetable that never schedules anything. 

38 

39 This should not be directly used anywhere, but only set if a DAG is triggered by assets. 

40 

41 :meta private: 

42 """ 

43 

44 asset_condition: BaseAsset = attrs.field(alias="assets") 

45 

46 

47@attrs.define 

48class PartitionedAssetTimetable(AssetTriggeredTimetable): 

49 """Asset-driven timetable that listens for partitioned assets.""" 

50 

51 asset_condition: BaseAsset = attrs.field(alias="assets") 

52 partition_mapper: PartitionMapper 

53 

54 

55def _coerce_assets(o: Collection[Asset] | BaseAsset) -> BaseAsset: 

56 if isinstance(o, BaseAsset): 

57 return o 

58 return AssetAll(*o) 

59 

60 

61@attrs.define(kw_only=True) 

62class AssetOrTimeSchedule(AssetTriggeredTimetable): 

63 """ 

64 Combine time-based scheduling with event-based scheduling. 

65 

66 :param assets: An asset of list of assets, in the same format as 

67 ``DAG(schedule=...)`` when using event-driven scheduling. This is used 

68 to evaluate event-based scheduling. 

69 :param timetable: A timetable instance to evaluate time-based scheduling. 

70 """ 

71 

72 asset_condition: BaseAsset = attrs.field(alias="assets", converter=_coerce_assets) 

73 timetable: BaseTimetable 

74 

75 def __attrs_post_init__(self) -> None: 

76 self.active_runs_limit = self.timetable.active_runs_limit 

77 self.can_be_scheduled = self.timetable.can_be_scheduled