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42 lines
1.1 KiB
42 lines
1.1 KiB
from __future__ import absolute_import
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class Quota(object):
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"""An upper or lower bound for metrics"""
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def __init__(self, bound, is_upper):
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self._bound = bound
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self._upper = is_upper
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@staticmethod
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def upper_bound(upper_bound):
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return Quota(upper_bound, True)
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@staticmethod
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def lower_bound(lower_bound):
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return Quota(lower_bound, False)
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def is_upper_bound(self):
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return self._upper
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@property
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def bound(self):
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return self._bound
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def is_acceptable(self, value):
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return ((self.is_upper_bound() and value <= self.bound) or
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(not self.is_upper_bound() and value >= self.bound))
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def __hash__(self):
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prime = 31
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result = prime + self.bound
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return prime * result + self.is_upper_bound()
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def __eq__(self, other):
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if self is other:
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return True
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return (type(self) == type(other) and
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self.bound == other.bound and
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self.is_upper_bound() == other.is_upper_bound())
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def __ne__(self, other):
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return not self.__eq__(other)
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