from __future__ import print_function
import cgi
import json
import math
import pkg_resources
from crunchstat_summary import logger
class ChartJS(object):
JSLIB = 'https://cdnjs.cloudflare.com/ajax/libs/canvasjs/1.7.0/canvasjs.min.js'
def __init__(self, label, summarizers):
self.label = label
self.summarizers = summarizers
def html(self):
return '''
{} stats
'''.format(cgi.escape(self.label), self.JSLIB, self.js())
def js(self):
return 'var sections = {};\n{}'.format(
json.dumps(self.sections()),
pkg_resources.resource_string('crunchstat_summary', 'chartjs.js'))
def sections(self):
return [
{
'label': s.long_label(),
'charts': self.charts(s.label, s.tasks),
}
for s in self.summarizers]
def _axisY(self, tasks, stat):
ymax = 1
for task in tasks.itervalues():
for pt in task.series[stat]:
ymax = max(ymax, pt[1])
ytick = math.exp((1+math.floor(math.log(ymax, 2)))*math.log(2))/4
return {
'gridColor': '#cccccc',
'gridThickness': 1,
'interval': ytick,
'minimum': 0,
'maximum': ymax,
'valueFormatString': "''",
}
def charts(self, label, tasks):
return [
{
'axisY': self._axisY(tasks=tasks, stat=stat),
'data': [
{
'type': 'line',
'markerType': 'none',
'dataPoints': self._datapoints(
label=uuid, task=task, series=task.series[stat]),
}
for uuid, task in tasks.iteritems()
],
'title': {
'text': '{}: {} {}'.format(label, stat[0], stat[1]),
},
'zoomEnabled': True,
}
for stat in (('cpu', 'user+sys__rate'),
('mem', 'rss'),
('net:eth0', 'tx+rx__rate'),
('net:keep0', 'tx+rx__rate'))]
def _datapoints(self, label, task, series):
points = [
{'x': pt[0].total_seconds(), 'y': pt[1]}
for pt in series]
if len(points) > 0:
points[-1]['markerType'] = 'cross'
points[-1]['markerSize'] = 12
return points