#!/usr/bin/env python
# -*- encoding: utf-8 -*-
#
# Swift monitoring script for munin
#
# Copyright © 2012 eNovance <licensing@enovance.com>
#
# Author: Julien Danjou <julien@danjou.info>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

import sys
import json
import os
import requests

try:
    swift_server = sys.argv[0].split("_", 1)[1]
except:
    print "E: Cannot find server name using script name"
    sys.exit(1)

try:
    if sys.argv[1] == 'config':
        print "graph_title Swift object async pending %s" % swift_server
        print "graph_category fs"
        print "async_pending.type GAUGE"
        print "async_pending.label Async pending"
        print "async_pending.draw AREA"
    sys.exit(0)
except IndexError:
    pass

async_r = requests.get("http://%s:%s/recon/async" \
                           % (swift_server, os.getenv("SWIFT_OBJECT_PORT", "6000")))
async_r = json.loads(async_r.text)['async_pending']
async_r = int(0 if async_r is None else async_r)
print "async_pending.value %d" % async_r
