#
# Copyright 2020 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 apps::tomcat::web::mode::memory;
use base qw(centreon::plugins::templates::counter);
use strict;
use warnings;
use centreon::plugins::http;
use XML::XPath;
sub custom_memory_output {
my ($self, %options) = @_;
my $msg = sprintf("Memory Total: %s %s Used: %s %s (%.2f%%) Free: %s %s (%.2f%%)",
$self->{perfdata}->change_bytes(value => $self->{result_values}->{total}),
$self->{perfdata}->change_bytes(value => $self->{result_values}->{used}),
$self->{result_values}->{prct_used},
$self->{perfdata}->change_bytes(value => $self->{result_values}->{free}),
$self->{result_values}->{prct_free});
return $msg;
}
sub set_counters {
my ($self, %options) = @_;
$self->{maps_counters_type} = [
{ name => 'global', type => 0, skipped_code => { -10 => 1 } },
];
$self->{maps_counters}->{global} = [
{ label => 'usage', nlabel => 'memory.usage.bytes', set => {
key_values => [ { name => 'used' }, { name => 'free' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_memory_output'),
perfdatas => [
{ value => 'used', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 },
],
}
},
{ label => 'usage-free', display_ok => 0, nlabel => 'memory.free.bytes', set => {
key_values => [ { name => 'free' }, { name => 'used' }, { name => 'prct_used' }, { name => 'prct_free' }, { name => 'total' } ],
closure_custom_output => $self->can('custom_memory_output'),
perfdatas => [
{ value => 'free', template => '%d', min => 0, max => 'total',
unit => 'B', cast_int => 1 },
],
}
},
{ label => 'usage-prct', display_ok => 0, nlabel => 'memory.usage.percentage', set => {
key_values => [ { name => 'prct_used' } ],
output_template => 'Memory Used : %.2f %%',
perfdatas => [
{ value => 'prct_used', template => '%.2f', min => 0, max => 100, unit => '%' },
],
}
},
];
}
sub new {
my ($class, %options) = @_;
my $self = $class->SUPER::new(package => __PACKAGE__, %options, force_new_perfdata => 1);
bless $self, $class;
$options{options}->add_options(arguments => {
'hostname:s' => { name => 'hostname' },
'port:s' => { name => 'port', default => '8080' },
'proto:s' => { name => 'proto' },
'credentials' => { name => 'credentials' },
'basic' => { name => 'basic' },
'username:s' => { name => 'username' },
'password:s' => { name => 'password' },
'timeout:s' => { name => 'timeout' },
'urlpath:s' => { name => 'url_path', default => '/manager/status?XML=true' },
});
$self->{http} = centreon::plugins::http->new(%options);
return $self;
}
sub check_options {
my ($self, %options) = @_;
$self->SUPER::check_options(%options);
$self->{http}->set_options(%{$self->{option_results}});
}
my %xpath_to_check = (
memMax => '/status/jvm/memory/@max',
memFree => '/status/jvm/memory/@free',
memTotal => '/status/jvm/memory/@total',
);
sub manage_selection {
my ($self, %options) = @_;
my $webcontent = $self->{http}->request();
#EXAMPLE 1:
#
#
#
#
#
#
#
#
#
#
#
#
#
#EXAMPLE 2:
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
#
my $result = {};
my $xpath = XML::XPath->new(xml => $webcontent);
foreach my $xpath_check (keys %xpath_to_check) {
my $nodeset = $xpath->find($xpath_to_check{$xpath_check});
foreach my $node ($nodeset->get_nodelist()) {
my $value = $node->string_value();
if ($value =~ /^"?([0-9.]+)"?$/) {
$result->{$xpath_check} = $1;
}
};
};
if (!defined($result->{memTotal}) || !defined($result->{memFree})) {
$self->{output}->add_option_msg(short_msg => "some informations missing.");
$self->{output}->option_exit();
}
my $total = $result->{memTotal};
$self->{global} = {
total => $total,
free => $result->{memFree},
used => $total - $result->{memFree},
prct_free => $result->{memFree} * 100 / $total,
prct_used => ($result->{memTotal} - $result->{memFree}) * 100 / $total,
};
};
1;
__END__
=head1 MODE
Check Tomcat Application Servers Memory Usage
=over 8
=item B<--hostname>
IP Address or FQDN of the Tomcat Application Server
=item B<--port>
Port used by Tomcat
=item B<--proto>
Protocol used http or https
=item B<--credentials>
Specify this option if you access server-status page with authentication
=item B<--username>
Specify username for authentication (Mandatory if --credentials is specified)
=item B<--password>
Specify password for authentication (Mandatory if --credentials is specified)
=item B<--basic>
Specify this option if you access server-status page over basic authentication and don't want a '401 UNAUTHORIZED' error to be logged on your webserver.
Specify this option if you access server-status page over hidden basic authentication or you'll get a '404 NOT FOUND' error.
(Use with --credentials)
=item B<--timeout>
Threshold for HTTP timeout
=item B<--urlpath>
Path to the Tomcat Manager XML (Default: '/manager/status?XML=true')
=item B<--warning-*> B<--critical-*>
Thresholds.
Can be: 'usage' (B), 'usage-free' (B), 'usage-prct' (%).
=back
=cut