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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2019 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Statsd interface class."""
import sys
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)
# Mandatories configuration keys (additional to host and port)
# N/A
# Optionals configuration keys
self.prefix = None
# Load the InfluxDB configuration file
self.export_enable = self.load_conf('statsd',
mandatories=['host', 'port'],
options=['prefix'])
if not self.export_enable:
sys.exit(2)
# 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
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