karesansui/lib/rrd/users.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 datetime
  16 import rrdtool
  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_users_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/users/users.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 = {"min":_('Min'),
  33                            "max":_('Max'),
  34                            "ave":_('Ave'),
  35                            "last":_('Last'),
  36                            }
  37
  38     for key in legend_header_label.keys():
  39         if re.search(u"[^a-zA-Z0-9]", legend_header_label[key]):
  40             legend_header_label[key] = "</tt>%s<tt>" % (legend_header_label[key].encode("utf-8"))
  41         else:
  42             legend_header_label[key] = "%s" % (legend_header_label[key].encode("utf-8"))
  43
  44     legend_header = "<tt>                 %s       %s       %s       %s</tt>" % (legend_header_label['min'],
  45                                                                                 legend_header_label['max'],
  46                                                                                 legend_header_label['ave'],
  47                                                                                 legend_header_label['last']
  48                                                                                 )
  49     # TRANSLATORS:
  50     #  ユーザ数のグラフのタイトル
  51     title = _('Users Logged In')
  52     if re.search(u"[^a-zA-Z0-9_\-\.]", title):
  53         title = "%s" % (title.encode("utf-8"))
  54     else:
  55         title = "<tt>%s</tt>" % (title.encode("utf-8"))
  56
  57     created_label = _('Graph created')
  58     if re.search(u"[^a-zA-Z0-9 ]", created_label):
  59         created_label = "</tt>%s<tt>" % (created_label.encode("utf-8"))
  60     else:
  61         created_label = "%s" % (created_label.encode("utf-8"))
  62
  63     created_time = "%s" % (datetime.datetime.today().strftime(DEFAULT_LANGS[lang]['DATE_FORMAT'][1]))
  64     created_time = re.sub(r':', '\:', created_time)
  65
  66     legend_footer = "<tt>%s \: %s</tt>" % (created_label, created_time)
  67
  68     data = rrdtool.graph(graph_filepath,
  69                          GRAPH_COMMON_PARAM,
  70                          "--title", title,
  71                          # TRANSLATORS:
  72                          #   ユーザ数のグラフの縦軸のラベル
  73                          "--vertical-label", _('Users ').encode("utf-8"),
  74                          "--start", start,
  75                          "--end",  end,
  76                          "--legend-direction", "bottomup",
  77                          "DEF:users=%s:users:AVERAGE" % (rrd_filepath[0]),
  78                          "COMMENT:%s\\r" % legend_footer,
  79                          "COMMENT:<tt>---------------------------------------------------------------------------</tt>\\n",
  80                          # TRANSLATORS:
  81                          #   ユーザ数のグラフの凡例
  82                          "AREA:users#80AA00:<tt>%s    </tt>" % (_('Users').encode("utf-8")),
  83                          "GPRINT:users:MIN:<tt>%8.2lf</tt>",
  84                          "GPRINT:users:MAX:<tt>%8.2lf</tt>",
  85                          "GPRINT:users:AVERAGE:<tt>%8.2lf</tt>",
  86                          "GPRINT:users:LAST:<tt>%8.2lf</tt>\\n",
  87                          "COMMENT:%s\\n" % (legend_header),
  88                          "COMMENT: \\n",
  89                          )
  90
  91     return graph_filepath