centreon-plugins/centreon/plugins/perfdata.pm

173 lines
6.8 KiB
Perl

#
# Copyright 2021 Centreon (http://www.centreon.com/)
#
# Centreon is a full-fledged industry-strength solution that meets
# the needs in IT infrastructure and application monitoring for
# service performance.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
package centreon::plugins::perfdata;
use strict;
use warnings;
use centreon::plugins::misc;
sub new {
my ($class, %options) = @_;
my $self = {};
bless $self, $class;
$self->{output} = $options{output};
# Typical Nagios Perfdata 'with ~ @ ..'
$self->{threshold_label} = {};
$self->{float_precision} = defined($self->{output}->{option_results}->{float_precision}) && $self->{output}->{option_results}->{float_precision} =~ /\d+/ ?
int($self->{output}->{option_results}->{float_precision}) : 8;
return $self;
}
sub get_perfdata_for_output {
my ($self, %options) = @_;
# $options{label} : threshold label
# $options{total} : percent threshold to transform in global
# $options{cast_int} : cast absolute to int
# $options{op} : operator to apply to start/end value (uses with 'value'})
# $options{value} : value to apply with 'op' option
if (!defined($self->{threshold_label}->{$options{label}}->{value}) || $self->{threshold_label}->{$options{label}}->{value} eq '') {
return '';
}
my %perf_value = %{$self->{threshold_label}->{$options{label}}};
if (defined($options{op}) && defined($options{value})) {
eval "\$perf_value{start} = \$perf_value{start} $options{op} \$options{value}" if ($perf_value{infinite_neg} == 0);
eval "\$perf_value{end} = \$perf_value{end} $options{op} \$options{value}" if ($perf_value{infinite_pos} == 0);
}
if (defined($options{total})) {
$perf_value{start} = $perf_value{start} * $options{total} / 100 if ($perf_value{infinite_neg} == 0);
$perf_value{end} = $perf_value{end} * $options{total} / 100 if ($perf_value{infinite_pos} == 0);
$perf_value{start} = sprintf("%.2f", $perf_value{start}) if ($perf_value{infinite_neg} == 0 && (!defined($options{cast_int}) || $options{cast_int} != 1));
$perf_value{end} = sprintf("%.2f", $perf_value{end}) if ($perf_value{infinite_pos} == 0 && (!defined($options{cast_int}) || $options{cast_int} != 1));
}
$perf_value{start} = int($perf_value{start}) if ($perf_value{infinite_neg} == 0 && defined($options{cast_int}) && $options{cast_int} == 1);
$perf_value{end} = int($perf_value{end}) if ($perf_value{infinite_pos} == 0 && defined($options{cast_int}) && $options{cast_int} == 1);
my $perf_output = ($perf_value{arobase} == 1 ? '@' : '') .
(($perf_value{infinite_neg} == 0) ? $perf_value{start} : '~') .
':' .
(($perf_value{infinite_pos} == 0) ? $perf_value{end} : '');
return $perf_output;
}
sub threshold_validate {
my ($self, %options) = @_;
# $options{label} : threshold label
# $options{value} : threshold value
my $status = 1;
$self->{threshold_label}->{$options{label}} = { value => $options{value}, start => undef, end => undef, arobase => undef, infinite_neg => undef, infinite_pos => undef };
if (!defined($options{value}) || $options{value} eq '') {
return $status;
}
($status, my $result_perf) =
centreon::plugins::misc::parse_threshold(threshold => $options{value});
$self->{threshold_label}->{$options{label}} = { %{$self->{threshold_label}->{$options{label}}}, %$result_perf };
$self->{threshold_label}->{$options{label}}->{start_precision} = $self->{threshold_label}->{$options{label}}->{start};
if ($self->{threshold_label}->{$options{label}}->{start} =~ /[.,]/) {
$self->{threshold_label}->{$options{label}}->{start_precision} = sprintf("%.$self->{output}->{option_results}->{float_precision}f", $self->{threshold_label}->{$options{label}}->{start});
}
$self->{threshold_label}->{$options{label}}->{end_precision} = $self->{threshold_label}->{$options{label}}->{end};
if ($self->{threshold_label}->{$options{label}}->{end} =~ /[.,]/) {
$self->{threshold_label}->{$options{label}}->{end_precision} = sprintf("%.$self->{output}->{option_results}->{float_precision}f", $self->{threshold_label}->{$options{label}}->{end});
}
return $status;
}
sub threshold_check {
my ($self, %options) = @_;
# Can check multiple threshold. First match: out. Order is important
# options{value}: value to compare
# options{threshold}: ref to an array (example: [ {label => 'warning', exit_litteral => 'warning' }, {label => 'critical', exit_litteral => 'critical'} ]
if ($options{value} =~ /[.,]/) {
$options{value} = sprintf("%.$self->{output}->{option_results}->{float_precision}f", $options{value});
}
foreach (@{$options{threshold}}) {
next if (!defined($self->{threshold_label}->{$_->{label}}));
next if (!defined($self->{threshold_label}->{$_->{label}}->{value}) || $self->{threshold_label}->{$_->{label}}->{value} eq '');
if ($self->{threshold_label}->{$_->{label}}->{arobase} == 0 && ($options{value} < $self->{threshold_label}->{$_->{label}}->{start_precision} || $options{value} > $self->{threshold_label}->{$_->{label}}->{end_precision})) {
return $_->{exit_litteral};
} elsif ($self->{threshold_label}->{$_->{label}}->{arobase} == 1 && ($options{value} >= $self->{threshold_label}->{$_->{label}}->{start_precision} && $options{value} <= $self->{threshold_label}->{$_->{label}}->{end_precision})) {
return $_->{exit_litteral};
}
}
return 'ok';
}
sub trim {
my ($self, $value) = @_;
$value =~ s/^[ \t]+//;
$value =~ s/[ \t]+$//;
return $value;
}
sub change_bytes {
my ($self, %options) = @_;
my $value = $options{value};
my $divide = defined($options{network}) ? 1000 : 1024;
my @units = ('K', 'M', 'G', 'T');
my $unit = '';
my $sign = '';
$sign = '-' if ($value != abs($value));
$value = abs($value);
for (my $i = 0; $i < scalar(@units); $i++) {
last if (($value / $divide) < 1);
$unit = $units[$i];
$value = $value / $divide;
}
return (sprintf('%.2f', $sign . $value), $unit . (defined($options{network}) ? 'b' : 'B'));
}
1;
__END__
=head1 NAME
Perfdata class
=head1 SYNOPSIS
-
=head1 DESCRIPTION
B<perfdata>.
=cut