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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# SPDX-FileCopyrightText: 2022 Nicolas Hennion <nicolas@nicolargo.com>
#
# SPDX-License-Identifier: LGPL-3.0-only
#
"""Statsd interface class."""
from numbers import Number
from glances.compat import range
from glances.logger import logger
from glances.exports.glances_export import GlancesExport
from statsd import StatsClient
class Export(GlancesExport):
"""This class manages the Statsd export module."""
def __init__(self, config=None, args=None):
"""Init the Statsd export IF."""
super(Export, self).__init__(config=config, args=args)
# Mandatory configuration keys (additional to host and port)
# N/A
# Optional configuration keys
self.prefix = None
# Load the configuration file
self.export_enable = self.load_conf('statsd', mandatories=['host', 'port'], options=['prefix'])
if not self.export_enable:
exit('Missing STATSD config')
# Default prefix for stats is 'glances'
if self.prefix is None:
self.prefix = 'glances'
# Init the Statsd client
self.client = self.init()
def init(self):
"""Init the connection to the Statsd server."""
if not self.export_enable:
return None
logger.info("Stats will be exported to StatsD server: {}:{}".format(self.host, self.port))
return StatsClient(self.host, int(self.port), prefix=self.prefix)
def export(self, name, columns, points):
"""Export the stats to the Statsd server."""
for i in range(len(columns)):
if not isinstance(points[i], Number):
continue
stat_name = '{}.{}'.format(name, columns[i])
stat_value = points[i]
try:
self.client.gauge(normalize(stat_name), stat_value)
except Exception as e:
logger.error("Can not export stats to Statsd (%s)" % e)
logger.debug("Export {} stats to Statsd".format(name))
def normalize(name):
"""Normalize name for the Statsd convention"""
# Name should not contain some specials chars (issue #1068)
ret = name.replace(':', '')
ret = ret.replace('%', '')
ret = ret.replace(' ', '_')
return ret