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# -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 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 libs
from statsd import StatsClient
from numbers import Number
import sys
# Import Glances lib
from glances.core.glances_logging import logger
from ConfigParser import NoSectionError, NoOptionError
from glances.exports.glances_export import GlancesExport
class Export(GlancesExport):
"""This class manages the Statsd export module."""
def __init__(self, config=None, args=None):
"""Init the Statsd export IF."""
GlancesExport.__init__(self, config=config, args=args)
# Load the InfluxDB configuration file
self.host = None
self.port = None
self.prefix = None
self.export_enable = self.load_conf()
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 = StatsClient(self.host,
int(self.port),
prefix=self.prefix)
def load_conf(self, section="statsd"):
"""Load the Statsd configuration in the Glances configuration file"""
if self.config is None:
return False
try:
self.host = self.config.get_raw_option(section, "host")
self.port = self.config.get_raw_option(section, "port")
except NoSectionError:
logger.critical("No Statsd configuration found")
return False
except NoOptionError as e:
logger.critical("Error in the Statsd configuration (%s)" % e)
return False
else:
logger.debug("Load Statsd from the Glances configuration file")
# Prefix is optional
try:
self.prefix = self.config.get_raw_option(section, "prefix")
except NoOptionError as e:
pass
return True
def init(self, prefix='glances'):
"""Init the connection to the Statsd server"""
if not self.export_enable:
return None
return StatsClient(self.host,
self.port,
prefix=prefix)
def export(self, name, columns, points):
"""Export the stats to the Statsd server"""
for i in range(0, len(columns)):
if not isinstance(points[i], Number):
continue
stat_name = '{0}.{1}'.format(name, columns[i])
stat_value = points[i]
try:
self.client.gauge(stat_name, stat_value)
except Exception as e:
logger.error("Can not export stats to Statsd (%s)" % e)
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