superset cron_util 源码
superset cron_util 代码
文件路径：/superset/tasks/cron_util.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.
import logging
from datetime import datetime, timedelta, timezone as dt_timezone
from typing import Iterator
from croniter import croniter
from pytz import timezone as pytz_timezone, UnknownTimeZoneError
from superset import app
logger = logging.getLogger(__name__)
def cron_schedule_window(cron: str, timezone: str) -> Iterator[datetime]:
window_size = app.config["ALERT_REPORTS_CRON_WINDOW_SIZE"]
# create a time-aware datetime in utc
time_now = datetime.now(tz=dt_timezone.utc)
try:
tz = pytz_timezone(timezone)
except UnknownTimeZoneError:
# fallback to default timezone
tz = pytz_timezone("UTC")
logger.warning("Timezone %s was invalid. Falling back to 'UTC'", timezone)
utc = pytz_timezone("UTC")
# convert the current time to the user's local time for comparison
time_now = time_now.astimezone(tz)
start_at = time_now - timedelta(seconds=1)
stop_at = time_now + timedelta(seconds=window_size)
crons = croniter(cron, start_at)
for schedule in crons.all_next(datetime):
if schedule >= stop_at:
break
# convert schedule back to utc
yield schedule.astimezone(utc).replace(tzinfo=None)
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦