128 lines
3.7 KiB
Python
Executable File
128 lines
3.7 KiB
Python
Executable File
#!/usr/bin/python
|
|
from time import time
|
|
from os import getloadavg
|
|
import logging #TODO be more precise
|
|
#import pdb
|
|
|
|
class probe(object):
|
|
""""
|
|
An atomic measurment
|
|
|
|
Consists of name, value and unit. Unit is optional, althought when
|
|
available it is highly recommended to state it; bd default it is set
|
|
to "".
|
|
"""
|
|
def __init__(self, name, value, unit=""):
|
|
self.name = name
|
|
self.time = time()
|
|
self.value = value
|
|
self.unit = unit
|
|
|
|
class survey(object):
|
|
"""
|
|
A survey skeleton - a survey is a probe container.
|
|
|
|
Inherit from this class if you want to create your on Survey.
|
|
"Implement" update by any means.
|
|
"""
|
|
def __init__(self):
|
|
self.probe = [] #just to let you know
|
|
self.update()
|
|
self.name = 'Generic Survey'
|
|
|
|
def update(self):
|
|
"""
|
|
Updates the list of probes
|
|
|
|
Empty list of probes first and fill it with new ones afterwards
|
|
"""
|
|
pass
|
|
|
|
class display(object):
|
|
"""
|
|
A display skeleton - a display updates and displays surveys
|
|
|
|
Inherit from this class if you want to create your own display
|
|
Implement display.
|
|
"""
|
|
def __init__(self):
|
|
self.survey = []
|
|
|
|
def update(self):
|
|
for s in self.survey:
|
|
s.update()
|
|
|
|
def display(self):
|
|
"""
|
|
Displays self.survey items
|
|
|
|
Don't forget to add some surveys first and update them as needed
|
|
"""
|
|
pass
|
|
|
|
class surveyLoad(survey):
|
|
""" Surveys unix load average """
|
|
def __init__(self):
|
|
super(surveyLoad,self).__init__() #call superconstructor
|
|
self.name = 'Load Survey'
|
|
|
|
def update(self):
|
|
self.probe = []
|
|
try:
|
|
self.load = getloadavg()
|
|
self.probe.append(probe('lastminute',self.load[0]))
|
|
self.probe.append(probe('last5minute',self.load[1]))
|
|
self.probe.append(probe('last15minute',self.load[2]))
|
|
except Exception, ex:
|
|
logging.exception("Error ocurred while probing %s" % self.__class__.__name__)
|
|
pass
|
|
|
|
class surveyFree(survey):
|
|
#TODO it's just a quick hack; might not work too well
|
|
""" Primitive memory survey"""
|
|
def __init__(self):
|
|
super(surveyFree,self).__init__()
|
|
self.name = 'Simple Memory Survey'
|
|
|
|
def update(self):
|
|
self.probe = []
|
|
try:
|
|
f = open('/proc/meminfo', "r")
|
|
self.probe.append(self.parseline(f.next()))
|
|
self.probe.append(self.parseline(f.next()))
|
|
f.next() #skip Buffer
|
|
self.probe.append(self.parseline(f.next()))
|
|
f.close()
|
|
self.probe.append(probe("Effective free memory",
|
|
self.probe[1].value + self.probe[2].value, 'kb'))
|
|
except Exception, ex:
|
|
logging.exception("Error ocurred while probing %s" % self.__class__.__name__)
|
|
pass
|
|
|
|
def parseline(self, memline):
|
|
tmp = memline.partition(' ')
|
|
name = tmp[0].rstrip(':')
|
|
tmp = tmp[2].lstrip(' ').partition(' ')
|
|
value = int(tmp[0])
|
|
unit = tmp[2].rstrip('\n')
|
|
return probe(name,value,unit)
|
|
|
|
|
|
class displaycli(display):
|
|
""" "Dumps" survey to standard out """
|
|
def display(self):
|
|
for s in self.survey:
|
|
s.update()
|
|
print "Name: %s" % s.name
|
|
for p in s.probe:
|
|
print "%s \t%s %s" % (p.name,p.value,p.unit)
|
|
print ""
|
|
|
|
if __name__ == "__main__":
|
|
dis = displaycli()
|
|
dis.survey.append(surveyLoad())
|
|
dis.survey.append(surveyLoad())
|
|
dis.survey.append(surveyFree())
|
|
dis.display()
|
|
#pdb.set_trace()
|