#!/usr/bin/env python
"""
=head1 NAME

mongo_conn - MongoDB connections Plugin

=head1 APPLICABLE SYSTEMS

Works until MongoDB 3.6. The httpinterface was later removed.

=head1 CONFIGURATION

    [mongo_lock]
    env.MONGO_DB_URI mongodb://user:password@host:port/dbname

=head1 AUTHOR

Original script there : https://github.com/comerford/mongo-munin

Doc added by Alban Espie-Guillon <alban.espie@alterway.fr>

=cut
"""

import urllib2
import sys

try:
    import json
except ImportError:
    import simplejson as json


def getServerStatus():
    raw = urllib2.urlopen( "http://127.0.0.1:28017/_status" ).read()
    return json.loads( raw )["serverStatus"]

name = "connections"


def doData():
    print name + ".value " + str( getServerStatus()["connections"]["current"] )

def doConfig():

    print "graph_title MongoDB current connections"
    print "graph_args --base 1000 -l 0"
    print "graph_vlabel connections"
    print "graph_category db"

    print name + ".label " + name






if __name__ == "__main__":
    if len(sys.argv) > 1 and sys.argv[1] == "config":
        doConfig()
    else:
        doData()