From eee3a064e3c4e5698274f7be8f0a078f4be56bb1 Mon Sep 17 00:00:00 2001
From: THEPAUT <fthepaut@centreon.com>
Date: Thu, 12 Jul 2018 03:52:04 -0400
Subject: [PATCH] add database-size mode (#870)

---
 .../database/postgres/mode/databasesize.pm    | 122 ++++++++++++++++++
 centreon-plugins/database/postgres/plugin.pm  |   1 +
 2 files changed, 123 insertions(+)
 create mode 100644 centreon-plugins/database/postgres/mode/databasesize.pm

diff --git a/centreon-plugins/database/postgres/mode/databasesize.pm b/centreon-plugins/database/postgres/mode/databasesize.pm
new file mode 100644
index 000000000..ec125b6a6
--- /dev/null
+++ b/centreon-plugins/database/postgres/mode/databasesize.pm
@@ -0,0 +1,122 @@
+#
+# Copyright 2018 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 database::postgres::mode::databasesize;
+
+use base qw(centreon::plugins::mode);
+
+use strict;
+use warnings;
+
+sub new {
+    my ($class, %options) = @_;
+    my $self = $class->SUPER::new(package => __PACKAGE__, %options);
+    bless $self, $class;
+    
+    $self->{version} = '1.0';
+    $options{options}->add_options(arguments =>
+                                { 
+                                  "warning:s"               => { name => 'warning', default => ''},
+                                  "critical:s"              => { name => 'critical', default => ''},
+                                  "filter:s"                => { name => 'filter', }, # database name to check
+                                });
+    
+    return $self;
+}
+
+sub check_options {
+    my ($self, %options) = @_;
+    $self->SUPER::init(%options);
+    
+    if (($self->{perfdata}->threshold_validate(label => 'warning', value => $self->{option_results}->{warning})) == 0) {
+       $self->{output}->add_option_msg(short_msg => "Wrong warning threshold '" . $self->{option_results}->{warning} . "'.");
+       $self->{output}->option_exit();
+    }
+    
+    if (($self->{perfdata}->threshold_validate(label => 'critical', value => $self->{option_results}->{critical})) == 0) {
+       $self->{output}->add_option_msg(short_msg => "Wrong critical threshold '" . $self->{option_results}->{critical} . "'.");
+       $self->{output}->option_exit();
+    }
+}
+
+sub run {
+    my ($self, %options) = @_;
+    $self->{sql} = $options{sql};
+
+    $self->{sql}->connect();
+    
+    my $target_fields = undef;
+
+    # Query to get database size
+    my $query = sprintf("SELECT pg_database.datname, pg_database_size(pg_database.datname);",$self->{option_results}->{database});
+    
+    my $result = $self->{sql}->fetchall_arrayref();
+	
+    $self->{output}->output_add(severity => 'OK',
+                                short_msg => "All databases are ok.");	
+								
+    foreach my $row (@$result) {
+        next if (defined($self->{option_results}->{filter}) && 
+                 $$row[0] !~ /$self->{option_results}->{filter}/);
+    
+        my $exit_code = $self->{perfdata}->threshold_check(value => $$row[1], threshold => [ { label => 'critical', exit_litteral => 'critical' }, { label => 'warning', exit_litteral => 'warning' } ]);
+        
+        my ($value, $value_unit) = $self->{perfdata}->change_bytes(value => $$row[1]);
+        $self->{output}->output_add(long_msg => sprintf("DB '" . $$row[0] . "' size: %s%s", $value, $value_unit));
+        if (!$self->{output}->is_status(value => $exit_code, compare => 'ok', litteral => 1)) {
+            $self->{output}->output_add(severity => $exit_code,
+                                        short_msg => sprintf("DB '" . $$row[0] . "' size: %s%s", $value, $value_unit));
+        }
+        $self->{output}->perfdata_add(label => $$row[0] . '_size', unit => 'B',
+                                      value => $$row[1],
+                                      warning => $self->{perfdata}->get_perfdata_for_output(label => 'warning'),
+                                      critical => $self->{perfdata}->get_perfdata_for_output(label => 'critical'),
+                                      min => 0);
+    }
+
+    $self->{output}->display();
+    $self->{output}->exit();
+}
+
+1;
+
+__END__
+
+=head1 MODE
+
+Check a database size
+
+=over 8
+
+=item B<--warning>
+
+Threshold warning in bytes, maximum size allowed.
+
+=item B<--critical>
+
+Threshold critical in bytes, maximum size allowed.
+
+=item B<--filter>
+
+Filter database to checks.
+
+=back
+
+=cut
diff --git a/centreon-plugins/database/postgres/plugin.pm b/centreon-plugins/database/postgres/plugin.pm
index aa28dea17..5b48275ef 100644
--- a/centreon-plugins/database/postgres/plugin.pm
+++ b/centreon-plugins/database/postgres/plugin.pm
@@ -43,6 +43,7 @@ sub new {
                          'sql'              => 'centreon::common::protocols::sql::mode::sql',
                          'statistics'       => 'database::postgres::mode::statistics',
                          'tablespace'       => 'database::postgres::mode::tablespace',
+			 'database-size'    => 'database::postgres::mode::databasesize'0000
                          );
     $self->{sql_modes}{psqlcmd} = 'database::postgres::psqlcmd';
     return $self;