karesansui/lib/rrd/memory.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_memory_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/memory/memory-%s.rrd" % (rrd_dir, "free"),
  26                     "%s/memory/memory-%s.rrd" % (rrd_dir, "cached"),
  27                     "%s/memory/memory-%s.rrd" % (rrd_dir, "buffered"),
  28                     "%s/memory/memory-%s.rrd" % (rrd_dir, "used"),
  29                     )
  30
  31     for filepath in rrd_filepath:
  32         if is_readable(filepath) is False:
  33             return ""
  34
  35     legend_header_label = {"min":_('Min'),
  36                            "max":_('Max'),
  37                            "ave":_('Ave'),
  38                            "last":_('Last'),
  39                            }
  40
  41     for key in legend_header_label.keys():
  42         if re.search(u"[^a-zA-Z0-9]", legend_header_label[key]):
  43             legend_header_label[key] = "</tt>%s<tt>" % (legend_header_label[key].encode("utf-8"))
  44         else:
  45             legend_header_label[key] = "%s" % (legend_header_label[key].encode("utf-8"))
  46
  47     legend_header = "<tt>                      %s         %s         %s         %s</tt>" % (legend_header_label['min'],
  48                                                                                             legend_header_label['max'],
  49                                                                                             legend_header_label['ave'],
  50                                                                                             legend_header_label['last']
  51                                                                                             )
  52
  53     title = _('Memory')
  54     if re.search(u"[^a-zA-Z0-9_\-\. ]", title):
  55         title = "%s" % (title.encode("utf-8"))
  56     else:
  57         title = "<tt>%s</tt>" % (title.encode("utf-8"))
  58
  59     created_label = _('Graph created')
  60     if re.search(u"[^a-zA-Z0-9 ]", created_label):
  61         created_label = "</tt>%s<tt>" % (created_label.encode("utf-8"))
  62     else:
  63         created_label = "%s" % (created_label.encode("utf-8"))
  64
  65     created_time = "%s" % (datetime.datetime.today().strftime(DEFAULT_LANGS[lang]['DATE_FORMAT'][1]))
  66     created_time = re.sub(r':', '\:', created_time)
  67
  68     legend_footer = "<tt>%s \: %s</tt>" % (created_label, created_time)
  69
  70     data = rrdtool.graph(graph_filepath,
  71                          GRAPH_COMMON_PARAM,
  72                          "--title", title,
  73                          # TRANSLATORS:
  74                          #  メモリのグラフの縦軸のラベル
  75                          #  Byte? Bytes?
  76                          "--vertical-label", _('Byte').encode("utf-8"),
  77                          "--lower-limit", "0",
  78                          "--rigid",
  79                          "--start", start,
  80                          "--end",  end,
  81                          "--legend-direction", "bottomup",
  82                          "DEF:free=%s:value:AVERAGE" % (rrd_filepath[0]),
  83                          "DEF:cached=%s:value:AVERAGE" % (rrd_filepath[1]),
  84                          "DEF:buffered=%s:value:AVERAGE" % (rrd_filepath[2]),
  85                          "DEF:used=%s:value:AVERAGE" % (rrd_filepath[3]),
  86                          "COMMENT:%s\\r" % legend_footer,
  87                          "COMMENT:<tt>---------------------------------------------------------------------------</tt>\\n",
  88                          # TRANSLATORS:
  89                          #  メモリのグラフの項目名
  90                          #  日本語にした場合は表示が崩れますが、後で直すのでそのままで大丈夫です
  91                          "AREA:used#80AA00:<tt>%s        </tt>" % (_('Used').encode("utf-8")),
  92                          "GPRINT:used:MIN:<tt>%8.1lf %s</tt>",
  93                          "GPRINT:used:MAX:<tt>%8.1lf %s</tt>",
  94                          "GPRINT:used:AVERAGE:<tt>%8.1lf %s</tt>",
  95                          "GPRINT:used:LAST:<tt>%8.1lf %s</tt>\\n",
  96                          "STACK:buffered#E7EF00:<tt>%s    </tt>" % (_('Buffered').encode("utf-8")),
  97                          "GPRINT:buffered:MIN:<tt>%8.1lf %s</tt>",
  98                          "GPRINT:buffered:MAX:<tt>%8.1lf %s</tt>",
  99                          "GPRINT:buffered:AVERAGE:<tt>%8.1lf %s</tt>",
 100                          "GPRINT:buffered:LAST:<tt>%8.1lf %s</tt>\\n",
 101                          "STACK:cached#B3EF00:<tt>%s      </tt>" % (_('Cached').encode("utf-8")),
 102                          "GPRINT:cached:MIN:<tt>%8.1lf %s</tt>",
 103                          "GPRINT:cached:MAX:<tt>%8.1lf %s</tt>",
 104                          "GPRINT:cached:AVERAGE:<tt>%8.1lf %s</tt>",
 105                          "GPRINT:cached:LAST:<tt>%8.1lf %s</tt>\\n",
 106                          "STACK:free#FFFFFF:<tt>%s        </tt>" % (_('Free').encode("utf-8")),
 107                          "GPRINT:free:MIN:<tt>%8.1lf %s</tt>",
 108                          "GPRINT:free:MAX:<tt>%8.1lf %s</tt>",
 109                          "GPRINT:free:AVERAGE:<tt>%8.1lf %s</tt>",
 110                          "GPRINT:free:LAST:<tt>%8.1lf %s</tt>\\n",
 111                          "COMMENT:%s\\n" % (legend_header),
 112                          "COMMENT: \\n",
 113                          )
 114
 115     return graph_filepath