karesansui/lib/rrd/uptime.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 #
   4 # This file is part of Karesansui Core.
   5 #
   6 # Copyright (C) 2010 HDE, Inc.
   7 #
   8 # This program is free software; you can redistribute it and/or
   9 # modify it under the terms of the GNU Lesser General Public
  10 # License as published by the Free Software Foundation; either
  11 # version 2.1 of the License, or (at your option) any later version.
  12 #
  13
  14 import re
  15 import rrdtool
  16 import datetime
  17 import karesansui
  18 from karesansui.lib.const import GRAPH_COMMON_PARAM, DEFAULT_LANGS
  19 from karesansui.lib.utils import is_readable, generate_phrase
  20
  21 def create_uptime_graph(_, lang, graph_dir, rrd_dir, start, end, dev=None, type=None):
  22     graph_filename = "%s.png" % (generate_phrase(12,'abcdefghijklmnopqrstuvwxyz'))
  23     graph_filepath = "%s/%s" % (graph_dir, graph_filename)
  24
  25     rrd_filepath = ("%s/uptime/uptime.rrd" % (rrd_dir),
  26                     )
  27
  28     for filepath in rrd_filepath:
  29         if is_readable(filepath) is False:
  30             return ""
  31
  32     legend_header_label = {"last":_('Last'),
  33                            }
  34
  35     for key in legend_header_label.keys():
  36         if re.search(u"[^a-zA-Z0-9]", legend_header_label[key]):
  37             legend_header_label[key] = "</tt>%s<tt>" % (legend_header_label[key].encode("utf-8"))
  38         else:
  39             legend_header_label[key] = "   %s" % (legend_header_label[key].encode("utf-8"))
  40
  41     legend_header = "<tt>                          %s</tt>" % (legend_header_label['last'])
  42
  43     # TRANSLATORS:
  44     #   起動時間のグラフの凡例
  45     legend_label = {"uptime":_('uptime'),
  46                     "day":_('days'),
  47                     "hour":_('hours'),
  48                     "minute":_('mins'),
  49                     }
  50
  51     for key in legend_label.keys():
  52         if re.search(u"[^a-zA-Z0-9]", legend_label[key]):
  53             legend_label[key] = "</tt>%s<tt>" % (legend_label[key].encode("utf-8"))
  54         else:
  55             legend_label[key] = "%s" % (legend_label[key].encode("utf-8"))
  56
  57     # TRANSLATORS:
  58     #  起動時間のグラフのタイトル
  59     title = _('Uptime')
  60     if re.search(u"[^a-zA-Z0-9_\-\.]", title):
  61         title = "%s" % (title.encode("utf-8"))
  62     else:
  63         title = "<tt>%s</tt>" % (title.encode("utf-8"))
  64
  65     created_label = _('Graph created')
  66     if re.search(u"[^a-zA-Z0-9 ]", created_label):
  67         created_label = "</tt>%s<tt>" % (created_label.encode("utf-8"))
  68     else:
  69         created_label = "%s" % (created_label.encode("utf-8"))
  70
  71     created_time = "%s" % (datetime.datetime.today().strftime(DEFAULT_LANGS[lang]['DATE_FORMAT'][1]))
  72     created_time = re.sub(r':', '\:', created_time)
  73
  74     legend_footer = "<tt>%s \: %s</tt>" % (created_label, created_time)
  75
  76     data = rrdtool.graph(graph_filepath,
  77                          GRAPH_COMMON_PARAM,
  78                          "--title", title,
  79                          # TRANSLATORS:
  80                          #  起動時間のグラフの縦軸のラベル
  81                          "--vertical-label", _('Days').encode("utf-8"),
  82                          "--lower-limit", "0",
  83                          "--rigid",
  84                          "--start", start,
  85                          "--end",  end,
  86                          "--alt-autoscale",
  87                          "--legend-direction", "bottomup",
  88                          "DEF:uptime=%s:value:AVERAGE" % (rrd_filepath[0]),
  89                          "CDEF:day=uptime,86400,/",
  90                          "CDEF:hour=uptime,86400,%,3600,/",
  91                          "CDEF:minute=uptime,3600,%,60,/",
  92                          "COMMENT:%s\\r" % legend_footer,
  93                          "COMMENT:<tt>---------------------------------------------------------------------------</tt>\\n",
  94                          "AREA:day#80AA00:<tt>%s    </tt>" % (legend_label["uptime"]),
  95                          "GPRINT:day:LAST:<tt>%%6.0lf %s</tt>" % (legend_label["day"]),
  96                          "GPRINT:hour:LAST:<tt>%%2.0lf %s</tt>" % (legend_label["hour"]),
  97                          "GPRINT:minute:LAST:<tt>%%2.0lf %s</tt>\\n" % (legend_label["minute"]),
  98                          "COMMENT:%s\\n" % (legend_header),
  99                          "COMMENT: \\n",
 100                          )
 101
 102     return graph_filepath