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import asyncio
from abc import ABCMeta, abstractmethod
from aiomeasures.checks import Check
from aiomeasures.events import Event
from aiomeasures.metrics import CountingMetric, GaugeMetric
from aiomeasures.metrics import HistogramMetric, SetMetric, TimingMetric
from time import perf_counter
class Client(metaclass=ABCMeta):
def incr(self, name, value=None, rate=None, tags=None):
value = abs(value or 1)
metric = CountingMetric(name, value, rate=rate, tags=tags)
return self.register(metric)
def decr(self, name, value=None, rate=None, tags=None):
value = -abs(value or 1)
metric = CountingMetric(name, value, rate=rate, tags=tags)
return self.register(metric)
def counter(self, name, value, rate=None, tags=None):
metric = CountingMetric(name, value, rate=rate, tags=tags)
return self.register(metric)
def timing(self, name, value=None, rate=None, tags=None):
metric = TimingMetric(name, value, rate=rate, tags=tags)
return self.register(metric)
def timer(self, name, rate=None, tags=None):
return Timer(client=self, name=name, rate=rate, tags=tags)
def gauge(self, name, value, rate=None, delta=False):
metric = GaugeMetric(name, value, rate=rate, delta=delta)
return self.register(metric)
def histogram(self, name, value, rate=None, delta=False):
metric = HistogramMetric(name, value, rate=rate, delta=delta)
return self.register(metric)
def set(self, name, value, rate=None, tags=None):
metric = SetMetric(name, value, rate=rate, tags=tags)
return self.register(metric)
def event(self, title, text, **kwargs):
event = Event(title, text, **kwargs)
return self.register(event)
def check(self, name, status, **kwargs):
check = Check(name, status, **kwargs)
return self.register(check)
@abstractmethod
def format(self, metric, prefix=None):
raise NotImplementedError()
@asyncio.coroutine
@abstractmethod
def send(self):
"""Sends key/value pairs via UDP or TCP.
"""
raise NotImplementedError()
@abstractmethod
def register(self, metric):
raise NotImplementedError()
@abstractmethod
def close(self):
raise NotImplementedError()
class Timer:
def __init__(self, client, name, rate=None, tags=None):
self.client = client
self.name = name
self.rate = rate
self.tags = tags
def __call__(self, func):
def wrapper(*args, **kwargs):
try:
self.start()
return func(*args, **kwargs)
finally:
self.stop()
return wrapper
def __enter__(self):
self.start()
def __exit__(self, type, value, tb):
self.stop()
def start(self):
self._started = perf_counter()
def stop(self):
value = int((perf_counter() - self._started) * 1000)
self.client.timing(self.name, value, rate=self.rate, tags=self.tags)
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