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83 lines
2.4 KiB
83 lines
2.4 KiB
#!/usr/bin/python
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from __future__ import unicode_literals
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import logging
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import re
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import socket
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import threading
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import time
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from timeit import default_timer
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from ..registry import REGISTRY
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# Roughly, have to keep to what works as a file name.
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# We also remove periods, so labels can be distinguished.
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_INVALID_GRAPHITE_CHARS = re.compile(r"[^a-zA-Z0-9_-]")
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def _sanitize(s):
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return _INVALID_GRAPHITE_CHARS.sub('_', s)
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class _RegularPush(threading.Thread):
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def __init__(self, pusher, interval, prefix):
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super(_RegularPush, self).__init__()
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self._pusher = pusher
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self._interval = interval
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self._prefix = prefix
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def run(self):
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wait_until = default_timer()
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while True:
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while True:
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now = default_timer()
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if now >= wait_until:
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# May need to skip some pushes.
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while wait_until < now:
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wait_until += self._interval
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break
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# time.sleep can return early.
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time.sleep(wait_until - now)
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try:
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self._pusher.push(prefix=self._prefix)
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except IOError:
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logging.exception("Push failed")
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class GraphiteBridge(object):
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def __init__(self, address, registry=REGISTRY, timeout_seconds=30, _timer=time.time):
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self._address = address
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self._registry = registry
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self._timeout = timeout_seconds
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self._timer = _timer
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def push(self, prefix=''):
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now = int(self._timer())
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output = []
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prefixstr = ''
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if prefix:
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prefixstr = prefix + '.'
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for metric in self._registry.collect():
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for s in metric.samples:
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if s.labels:
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labelstr = '.' + '.'.join(
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['{0}.{1}'.format(
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_sanitize(k), _sanitize(v))
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for k, v in sorted(s.labels.items())])
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else:
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labelstr = ''
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output.append('{0}{1}{2} {3} {4}\n'.format(
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prefixstr, _sanitize(s.name), labelstr, float(s.value), now))
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conn = socket.create_connection(self._address, self._timeout)
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conn.sendall(''.join(output).encode('ascii'))
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conn.close()
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def start(self, interval=60.0, prefix=''):
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t = _RegularPush(self, interval, prefix)
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t.daemon = True
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t.start()
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