/usr/lib/python2.7/dist-packages/monascastatsd/timer.py is in python-monasca-statsd 1.9.0-0ubuntu1.
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import contextlib
import functools
import time
from monascastatsd import metricbase
class Timer(metricbase.MetricBase):
def __init__(self, connection, name=None, dimensions=None):
super(self.__class__, self).__init__(name=name,
connection=connection,
dimensions=dimensions)
def timing(self, name, value, dimensions=None, sample_rate=1):
"""Record a timing, optionally setting dimensions and a sample rate.
>>> monascastatsd.timing("query.response.time", 1234)
"""
self._connection.report(metric=self.update_name(name),
metric_type='g',
value=value,
dimensions=self.update_dimensions(dimensions),
sample_rate=sample_rate)
def timed(self, name, dimensions=None, sample_rate=1):
"""A decorator that will measure the distribution of a function's
run time. Optionally specify a list of tag or a sample rate.
::
@monascastatsd.timed('user.query.time', sample_rate=0.5)
def get_user(user_id):
# Do what you need to ...
pass
# Is equivalent to ...
start = time.time()
try:
get_user(user_id)
finally:
monascastatsd.timing('user.query.time', time.time() - start)
"""
def wrapper(func):
@functools.wraps(func)
def wrapped(*args, **kwargs):
start = time.time()
result = func(*args, **kwargs)
self.timing(name,
time.time() - start,
dimensions=dimensions,
sample_rate=sample_rate)
return result
wrapped.__name__ = func.__name__
wrapped.__doc__ = func.__doc__
wrapped.__dict__.update(func.__dict__)
return wrapped
return wrapper
@contextlib.contextmanager
def time(self, name, dimensions=None, sample_rate=1):
"""Time a block of code, optionally setting dimensions and a sample rate.
try:
with monascastatsd.time("query.response.time"):
Do something...
except Exception:
Log something...
"""
start_time = time.time()
yield
end_time = time.time()
self.timing(name, end_time - start_time, dimensions, sample_rate)
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