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 if (defined $obj->{'rrd_vertical'})
81 {
82 push (@ret, '-v', $obj->{'rrd_vertical'});
83 }
85 if ($obj->{'custom_order'})
86 {
87 sort_idents_by_type_instance ($idents, $obj->{'custom_order'});
88 }
90 if ($ignore_unknown)
91 {
92 my $new_idents = [];
93 for (@$idents)
94 {
95 if (exists ($obj->{'ds_names'}{$_->{'type_instance'}}))
96 {
97 push (@$new_idents, $_);
98 }
99 }
101 if (@$new_idents)
102 {
103 $idents = $new_idents;
104 }
105 }
107 $obj->{'ds_names'} ||= {};
108 my @names = map { $obj->{'ds_names'}{$_->{'type_instance'}} || $_->{'type_instance'} } (@$idents);
110 for (my $i = 0; $i < @$idents; $i++)
111 {
112 my $ident = $idents->[$i];
113 my $filename = ident_to_filename ($ident);
115 if ($ds_name_len < length ($names[$i]))
116 {
117 $ds_name_len = length ($names[$i]);
118 }
120 # Escape colons _after_ the length has been checked.
121 $names[$i] =~ s/:/\\:/g;
123 push (@ret,
124 "DEF:min${i}=${filename}:${data_source}:MIN",
125 "DEF:avg${i}=${filename}:${data_source}:AVERAGE",
126 "DEF:max${i}=${filename}:${data_source}:MAX");
127 }
129 for (my $i = @$idents - 1; $i >= 0; $i--)
130 {
131 if ($i == (@$idents - 1))
132 {
133 push (@ret,
134 "CDEF:cdef${i}=avg${i},UN,0,avg${i},IF");
135 }
136 else
137 {
138 my $j = $i + 1;
139 push (@ret,
140 "CDEF:cdef${i}=avg${i},UN,0,avg${i},IF,cdef${j},+");
141 }
142 }
144 for (my $i = 0; $i < @$idents; $i++)
145 {
146 my $type_instance = $idents->[$i]{'type_instance'};
147 my $color = '000000';
148 if (exists $colors->{$type_instance})
149 {
150 $color = $colors->{$type_instance};
151 }
153 $color = get_faded_color ($color);
155 push (@ret,
156 "AREA:cdef${i}#${color}");
157 }
159 for (my $i = 0; $i < @$idents; $i++)
160 {
161 my $type_instance = $idents->[$i]{'type_instance'};
162 my $ds_name = sprintf ("%-*s", $ds_name_len, $names[$i]);
163 my $color = '000000';
164 if (exists $colors->{$type_instance})
165 {
166 $color = $colors->{$type_instance};
167 }
168 push (@ret,
169 "LINE1:cdef${i}#${color}:${ds_name}",
170 "GPRINT:min${i}:MIN:${format} Min,",
171 "GPRINT:avg${i}:AVERAGE:${format} Avg,",
172 "GPRINT:max${i}:MAX:${format} Max,",
173 "GPRINT:avg${i}:LAST:${format} Last\\l");
174 }
176 return (\@ret);
177 }
179 sub getGraphArgs
180 {
181 my $obj = shift;
182 my $index = shift;
184 my $group = group_files_by_plugin_instance (@{$obj->{'files'}});
185 my @group = sort (keys %$group);
187 my $idents = $group->{$group[$index]};
189 my @args = ();
190 for (qw(hostname plugin plugin_instance type))
191 {
192 if (defined ($idents->[0]{$_}))
193 {
194 push (@args, $_ . '=' . $idents->[0]{$_});
195 }
196 }
198 return (join (';', @args));
199 } # getGraphArgs
202 # vim: set shiftwidth=2 softtabstop=2 tabstop=8 :