20 lines
606 B
Python
20 lines
606 B
Python
from __future__ import absolute_import
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from kafka.metrics.stats.sampled_stat import AbstractSampledStat
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class Max(AbstractSampledStat):
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"""An AbstractSampledStat that gives the max over its samples."""
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__slots__ = ('_initial_value', '_samples', '_current')
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def __init__(self):
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super(Max, self).__init__(float('-inf'))
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def update(self, sample, config, value, now):
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sample.value = max(sample.value, value)
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def combine(self, samples, config, now):
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if not samples:
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return float('-inf')
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return float(max(sample.value for sample in samples))
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