-
Notifications
You must be signed in to change notification settings - Fork 13.7k
/
weekday.py
89 lines (74 loc) · 3.27 KB
/
weekday.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
#
# 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 airflow.sensors.base import BaseSensorOperator
from airflow.utils import timezone
from airflow.utils.weekday import WeekDay
class DayOfWeekSensor(BaseSensorOperator):
"""
Waits until the first specified day of the week. For example, if the execution
day of the task is '2018-12-22' (Saturday) and you pass 'FRIDAY', the task will wait
until next Friday.
**Example** (with single day): ::
weekend_check = DayOfWeekSensor(
task_id='weekend_check',
week_day='Saturday',
use_task_execution_day=True,
dag=dag)
**Example** (with multiple day using set): ::
weekend_check = DayOfWeekSensor(
task_id='weekend_check',
week_day={'Saturday', 'Sunday'},
use_task_execution_day=True,
dag=dag)
**Example** (with :class:`~airflow.utils.weekday.WeekDay` enum): ::
# import WeekDay Enum
from airflow.utils.weekday import WeekDay
weekend_check = DayOfWeekSensor(
task_id='weekend_check',
week_day={WeekDay.SATURDAY, WeekDay.SUNDAY},
use_task_execution_day=True,
dag=dag)
:param week_day: Day of the week to check (full name). Optionally, a set
of days can also be provided using a set.
Example values:
* ``"MONDAY"``,
* ``{"Saturday", "Sunday"}``
* ``{WeekDay.TUESDAY}``
* ``{WeekDay.SATURDAY, WeekDay.SUNDAY}``
:type week_day: iterable or airflow.utils.weekday.WeekDay
:param use_task_execution_day: If ``True``, uses task's execution day to compare
with week_day. Execution Date is Useful for backfilling.
If ``False``, uses system's day of the week. Useful when you
don't want to run anything on weekdays on the system.
:type use_task_execution_day: bool
"""
def __init__(self, *, week_day, use_task_execution_day=False, **kwargs):
super().__init__(**kwargs)
self.week_day = week_day
self.use_task_execution_day = use_task_execution_day
self._week_day_num = WeekDay.validate_week_day(week_day)
def poke(self, context):
self.log.info(
'Poking until weekday is in %s, Today is %s',
self.week_day,
WeekDay(timezone.utcnow().isoweekday()).name,
)
if self.use_task_execution_day:
return context['logical_date'].isoweekday() in self._week_day_num
else:
return timezone.utcnow().isoweekday() in self._week_day_num