def statistics(request, statisticsType):
if request.method == "GET" or not "visualization" in request.POST \
or not "domainId" in request.POST:
raise Http404
#endif
visualization = request.POST['visualization']
domainId = int(request.POST['domainId'])
domain = get_object_or_404(Domain, id=domainId)
#TODO: Test if user has permission to the domain
data = {
"status": 200,
"statusMessage": _("OK")
}
monitor = Monitor()
if not monitor.isRunning():
data['status'] = 503,
data['statusMessage'] = _("Monitor is not running")
return HttpResponse(simplejson.dumps(data))
#endif
if visualization.lower() == "gauge":
stats = domain.statistics_set.order_by("-datetime")[0]
if statisticsType.lower() == "cpu":
data['data'] = "%.2f" % (stats.percentage_cpu)
elif statisticsType.lower() == "memory":
data['data'] = "%.2f" % (stats.percentage_memory)
#endif
elif visualization.lower() == "areachart":
lastId = int(request.POST['lastId'])
now = datetime.datetime.now()
# Select only last 1,5 minute
stats = domain.statistics_set.filter(datetime__range=(now - datetime.timedelta(minutes=1), now))\
.filter(id__gt=lastId).order_by("-datetime")[:20]
if statisticsType.lower() == "cpu":
data['data'] = [ {
"time": time.mktime(stat.datetime.timetuple()),
"value": "%.2f" % (stat.percentage_cpu),
"id": stat.id
} for stat in stats ]
elif statisticsType.lower() == "memory":
data['data'] = [ {
"time": time.mktime(stat.datetime.timetuple()),
"value": "%.2f" % (stat.percentage_memory),
"id": stat.id
} for stat in stats ]
#endif
else:
data['status'] == 404
data['statusMessage'] = _("Unsupported visualization")
#endif
return HttpResponse(simplejson.dumps(data))
def handle_noargs(self, **options):
daemon = options.get("daemon", True)
interval = options.get("interval", 3)
try:
monitor = Monitor(daemon, interval)
monitor.run()
except Exception, e:
import traceback
logging.debug("Monitor exception:\n%s" % (traceback.format_exc()))
print unicode(e)
