/
agent_simulator.py
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/
agent_simulator.py
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#!/usr/bin/env python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# | ____ _ _ __ __ _ __ |
# | / ___| |__ ___ ___| | __ | \/ | |/ / |
# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / |
# | | |___| | | | __/ (__| < | | | | . \ |
# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ |
# | |
# | Copyright Mathias Kettner 2014 mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk 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 in version 2. check_mk is distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY; with-
# out even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU General Public License for more de-
# tails. You should have received a copy of the GNU General Public
# License along with GNU Make; see the file COPYING. If not, write
# to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
# Boston, MA 02110-1301 USA.
from __future__ import division
import math
import cmk.utils.debug
def our_uptime():
return float((open("/proc/uptime").read().split()[0]))
# replace simulator tags in output
def process(output):
try:
while True:
i = output.find('%{')
if i == -1:
break
e = output.find('}', i)
if e == -1:
break
simfunc = output[i + 2:e]
replacement = str(eval("agentsim_" + simfunc)) # nosec
output = output[:i] + replacement + output[e + 1:]
except Exception as e:
if cmk.utils.debug.enabled():
raise
return output
def agentsim_uptime(rate=1.0, period=None): # period = sinus wave
if period is None:
return int(our_uptime() * rate)
a = (rate * period) / (2.0 * math.pi) # fixed: true-division
u = our_uptime()
return int(u * rate + int(a * math.sin(u * 2.0 * math.pi / period))) # fixed: true-division
def agentsim_enum(values, period=1): # period is in seconds
hit = int(our_uptime() / period % len(values)) # fixed: true-division
return values[hit]
def agentsim_sinus(base=50, amplitude=50, period=300):
return int(math.sin(our_uptime() * math.pi * 2.0 / period) * amplitude +
base) # fixed: true-division