8596ae9df673be2a0054e2bc68460fbf1b66af45
1 package Collectd::Graph::Type::GenericStacked;
3 # Copyright (C) 2008,2009 Florian octo Forster <octo at verplant.org>
4 #
5 # This program is free software; you can redistribute it and/or modify it under
6 # the terms of the GNU General Public License as published by the Free Software
7 # Foundation; only version 2 of the License is applicable.
8 #
9 # This program is distributed in the hope that it will be useful, but WITHOUT
10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11 # FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
12 # details.
13 #
14 # You should have received a copy of the GNU General Public License along with
15 # this program; if not, write to the Free Software Foundation, Inc.,
16 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 use strict;
19 use warnings;
20 use base ('Collectd::Graph::Type');
22 use Collectd::Graph::Common (qw($ColorCanvas $ColorFullBlue $ColorHalfBlue
23 group_files_by_plugin_instance ident_to_filename sanitize_type_instance
24 get_faded_color sort_idents_by_type_instance));
26 return (1);
28 sub getGraphsNum
29 {
30 my $obj = shift;
31 my $group = group_files_by_plugin_instance (@{$obj->{'files'}});
33 return (scalar (keys %$group));
34 }
36 sub getRRDArgs
37 {
38 my $obj = shift;
39 my $index = shift;
41 my $group = group_files_by_plugin_instance (@{$obj->{'files'}});
42 my @group = sort (keys %$group);
44 my $rrd_opts = $obj->{'rrd_opts'} || [];
45 my $format = $obj->{'rrd_format'} || '%5.1lf';
47 my $idents = $group->{$group[$index]};
48 my $ds_name_len = 0;
50 my $ds = $obj->getDataSources ();
51 if (!$ds)
52 {
53 confess ("obj->getDataSources failed.");
54 }
55 if (@$ds != 1)
56 {
57 confess ("I can only work with RRD files that have "
58 . "exactly one data source!");
59 }
60 my $data_source = $ds->[0];
62 my $rrd_title = $obj->getTitle ($idents->[0]);
64 my $colors = $obj->{'rrd_colors'} || {};
65 my @ret = ('-t', $rrd_title, @$rrd_opts);
67 my $ignore_unknown = $obj->{'ignore_unknown'} || 0;
68 if ($ignore_unknown)
69 {
70 if ($ignore_unknown =~ m/^(yes|true|on)$/i)
71 {
72 $ignore_unknown = 1;
73 }
74 else
75 {
76 $ignore_unknown = 0;
77 }
78 }
80 my $stacking = $obj->{'stacking'};
81 if ($stacking)
82 {
83 if ($stacking =~ m/^(no|false|off|none)$/i)
84 {
85 $stacking = 0;
86 }
87 else
88 {
89 $stacking = 1;
90 }
91 }
93 if (defined $obj->{'rrd_vertical'})
94 {
95 push (@ret, '-v', $obj->{'rrd_vertical'});
96 }
98 if ($obj->{'custom_order'})
99 {
100 sort_idents_by_type_instance ($idents, $obj->{'custom_order'});
101 }
103 if ($ignore_unknown)
104 {
105 my $new_idents = [];
106 for (@$idents)
107 {
108 if (exists ($obj->{'ds_names'}{$_->{'type_instance'}}))
109 {
110 push (@$new_idents, $_);
111 }
112 }
114 if (@$new_idents)
115 {
116 $idents = $new_idents;
117 }
118 }
120 $obj->{'ds_names'} ||= {};
121 my @names = map { $obj->{'ds_names'}{$_->{'type_instance'}} || $_->{'type_instance'} } (@$idents);
123 for (my $i = 0; $i < @$idents; $i++)
124 {
125 my $ident = $idents->[$i];
126 my $filename = ident_to_filename ($ident);
128 if ($ds_name_len < length ($names[$i]))
129 {
130 $ds_name_len = length ($names[$i]);
131 }
133 # Escape colons _after_ the length has been checked.
134 $names[$i] =~ s/:/\\:/g;
136 push (@ret,
137 "DEF:min${i}=${filename}:${data_source}:MIN",
138 "DEF:avg${i}=${filename}:${data_source}:AVERAGE",
139 "DEF:max${i}=${filename}:${data_source}:MAX");
140 }
142 if ($stacking) {
143 for (my $i = @$idents - 1; $i >= 0; $i--)
144 {
145 if ($i == (@$idents - 1))
146 {
147 push (@ret,
148 "CDEF:cdef${i}=avg${i},UN,0,avg${i},IF");
149 }
150 else
151 {
152 my $j = $i + 1;
153 push (@ret,
154 "CDEF:cdef${i}=avg${i},UN,0,avg${i},IF,cdef${j},+");
155 }
156 }
158 for (my $i = 0; $i < @$idents; $i++)
159 {
160 my $type_instance = $idents->[$i]{'type_instance'};
161 my $color = '000000';
162 if (exists $colors->{$type_instance})
163 {
164 $color = $colors->{$type_instance};
165 }
167 $color = get_faded_color ($color);
169 push (@ret,
170 "AREA:cdef${i}#${color}");
171 }
172 }
173 else
174 {
175 for (my $i = @$idents - 1; $i >= 0; $i--)
176 {
177 push (@ret,
178 "CDEF:cdef${i}=avg${i}");
179 }
180 }
183 for (my $i = 0; $i < @$idents; $i++)
184 {
185 my $type_instance = $idents->[$i]{'type_instance'};
186 my $ds_name = sprintf ("%-*s", $ds_name_len, $names[$i]);
187 my $color = '000000';
188 if (exists $colors->{$type_instance})
189 {
190 $color = $colors->{$type_instance};
191 }
192 push (@ret,
193 "LINE1:cdef${i}#${color}:${ds_name}",
194 "GPRINT:min${i}:MIN:${format} Min,",
195 "GPRINT:avg${i}:AVERAGE:${format} Avg,",
196 "GPRINT:max${i}:MAX:${format} Max,",
197 "GPRINT:avg${i}:LAST:${format} Last\\l");
198 }
200 return (\@ret);
201 }
203 sub getGraphArgs
204 {
205 my $obj = shift;
206 my $index = shift;
208 my $group = group_files_by_plugin_instance (@{$obj->{'files'}});
209 my @group = sort (keys %$group);
211 my $idents = $group->{$group[$index]};
213 my @args = ();
214 for (qw(hostname plugin plugin_instance type))
215 {
216 if (defined ($idents->[0]{$_}))
217 {
218 push (@args, $_ . '=' . $idents->[0]{$_});
219 }
220 }
222 return (join (';', @args));
223 } # getGraphArgs
226 # vim: set shiftwidth=2 softtabstop=2 tabstop=8 :