mirror of
https://github.com/evilhero/mylar
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40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
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from datetime import datetime, timedelta
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from math import ceil
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from lib.apscheduler.util import convert_to_datetime, timedelta_seconds
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class IntervalTrigger(object):
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def __init__(self, interval, start_date=None):
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if not isinstance(interval, timedelta):
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raise TypeError('interval must be a timedelta')
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if start_date:
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start_date = convert_to_datetime(start_date)
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self.interval = interval
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self.interval_length = timedelta_seconds(self.interval)
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if self.interval_length == 0:
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self.interval = timedelta(seconds=1)
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self.interval_length = 1
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if start_date is None:
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self.start_date = datetime.now() + self.interval
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else:
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self.start_date = convert_to_datetime(start_date)
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def get_next_fire_time(self, start_date):
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if start_date < self.start_date:
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return self.start_date
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timediff_seconds = timedelta_seconds(start_date - self.start_date)
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next_interval_num = int(ceil(timediff_seconds / self.interval_length))
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return self.start_date + self.interval * next_interval_num
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def __str__(self):
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return 'interval[%s]' % str(self.interval)
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def __repr__(self):
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return "<%s (interval=%s, start_date=%s)>" % (
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self.__class__.__name__, repr(self.interval),
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repr(self.start_date))
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