71 lines
2.4 KiB
Python
71 lines
2.4 KiB
Python
# (C) Copyright 2014 Hewlett Packard Enterprise Development Company LP
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from monascastatsd import metricbase
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class Counter(metricbase.MetricBase):
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def __init__(self, name, connection, dimensions=None):
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super(self.__class__, self).__init__(name=name,
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connection=connection,
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dimensions=dimensions)
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def increment(self, value=1, dimensions=None, sample_rate=1):
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"""Increment a counter, optionally setting a value, dimensions
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and a sample rate.
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>>> monascastatsd.increment()
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>>> monascastatsd.increment(12)
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"""
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self._connection.report(metric=self._name,
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metric_type='c',
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value=value,
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dimensions=self.update_dimensions(dimensions),
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sample_rate=sample_rate)
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def decrement(self, value=1, dimensions=None, sample_rate=1):
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"""Decrement a counter, optionally setting a value, dimensions and a
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sample rate.
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>>> monascastatsd.decrement()
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>>> monascastatsd.decrement(2)
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"""
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self._connection.report(metric=self._name,
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metric_type='c',
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value=-value,
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dimensions=self.update_dimensions(dimensions),
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sample_rate=sample_rate)
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def __add__(self, value):
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"""Increment the counter with `value`
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:keyword value: The value to add to the counter
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:type value: int
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"""
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self.increment(value=value)
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return self
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def __sub__(self, value):
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"""Decrement the counter with `value`
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:keyword value: The value to remove from the counter
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:type value: int
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"""
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self.decrement(value=value)
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return self
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