monasca-statsd/monascastatsd/counter.py

56 lines
1.8 KiB
Python

from metricbase import MetricBase
class Counter(MetricBase):
def __init__(self, name, connection, dimensions=None):
super(self.__class__, self).__init__(name=name,
connection=connection,
dimensions=dimensions)
def increment(self, value=1, dimensions=None, sample_rate=1):
"""Increment a counter, optionally setting a value, dimensions
and a sample rate.
>>> monascastatsd.increment()
>>> monascastatsd.increment(12)
"""
self._connection.report(metric=self._name,
metric_type='c',
value=value,
dimensions=self.update_dimensions(dimensions),
sample_rate=sample_rate)
def decrement(self, value=1, dimensions=None, sample_rate=1):
"""Decrement a counter, optionally setting a value, dimensions and a
sample rate.
>>> monascastatsd.decrement()
>>> monascastatsd.decrement(2)
"""
self._connection.report(metric=self._name,
metric_type='c',
value=-value,
dimensions=self.update_dimensions(dimensions),
sample_rate=sample_rate)
def __add__(self, value):
"""Increment the counter with `value`
:keyword value: The value to add to the counter
:type value: int
"""
self.increment(value=value)
return self
def __sub__(self, value):
"""Decrement the counter with `value`
:keyword value: The value to remove from the counter
:type value: int
"""
self.decrement(value=value)
return self