+ Add sqlstring mode
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Simon Bomm
GitHub
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#
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# Copyright 2017 Centreon (http://www.centreon.com/)
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#
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# Centreon is a full-fledged industry-strength solution that meets
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# the needs in IT infrastructure and application monitoring for
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# service performance.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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package centreon::common::protocols::sql::mode::sqlstring;
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use base qw(centreon::plugins::templates::counter);
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use strict;
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use warnings;
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my $instance_mode;
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sub set_counters {
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my ($self, %options) = @_;
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$self->{maps_counters_type} = [
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{ name => 'rows', type => 1, message_multiple => "SQL Query is OK" },
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];
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$self->{maps_counters}->{rows} = [
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{ label => 'string', threshold => 0, set => {
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key_values => [ { name => 'key_field' }, { name => 'value_field' } ],
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closure_custom_calc => $self->can('custom_string_calc'),
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closure_custom_output => $self->can('custom_string_output'),
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closure_custom_threshold_check => $self->can('custom_string_threshold'),
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closure_custom_perfdata => sub { return 0; },
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}
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},
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];
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}
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sub custom_string_calc {
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my ($self, %options) = @_;
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$self->{result_values}->{key_field} = $options{new_datas}->{$self->{instance} . '_key_field'};
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$self->{result_values}->{value_field} = $options{new_datas}->{$self->{instance} . '_value_field'};
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return 0;
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}
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sub custom_string_output {
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my ($self, %options) = @_;
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my $msg;
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my $message;
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if (defined($instance_mode->{option_results}->{printf_format}) && $instance_mode->{option_results}->{printf_format} ne '') {
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eval {
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local $SIG{__WARN__} = sub { $message = $_[0]; };
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local $SIG{__DIE__} = sub { $message = $_[0]; };
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$msg = sprintf("$instance_mode->{option_results}->{printf_format}", eval $instance_mode->{option_results}->{printf_value});
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};
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} else {
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$msg = sprintf("'%s'", $self->{result_values}->{value_field});
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}
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if (defined($message)) {
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$self->{output}->output_add(long_msg => 'output value issue: ' . $message);
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}
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return $msg;
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}
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sub custom_string_threshold {
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my ($self, %options) = @_;
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my $status = 'ok';
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my $message;
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eval {
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local $SIG{__WARN__} = sub { $message = $_[0]; };
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local $SIG{__DIE__} = sub { $message = $_[0]; };
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if (defined($instance_mode->{option_results}->{critical_string}) && $instance_mode->{option_results}->{critical_string} ne '' &&
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eval "$instance_mode->{option_results}->{critical_string}") {
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$status = 'critical';
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} elsif (defined($instance_mode->{option_results}->{warning_string}) && $instance_mode->{option_results}->{warning_string} ne '' &&
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eval "$instance_mode->{option_results}->{warning_string}") {
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$status = 'warning';
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}
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};
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if (defined($message)) {
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$self->{output}->output_add(long_msg => 'threshold regex issue: ' . $message);
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}
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return $status;
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}
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sub new {
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my ($class, %options) = @_;
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my $self = $class->SUPER::new(package => __PACKAGE__, %options);
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bless $self, $class;
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$self->{version} = '1.0';
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$options{options}->add_options(arguments =>
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{
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"sql-statement:s" => { name => 'sql_statement' },
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"key-column:s" => { name => 'key_column' },
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"value-column:s" => { name => 'value_column' },
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"warning-string:s" => { name => 'warning_string', default => '' },
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"critical-string:s" => { name => 'critical_string', default => '' },
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"printf-format:s" => { name => 'printf_format' },
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"printf-value:s" => { name => 'printf_value' },
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});
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return $self;
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}
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sub check_options {
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my ($self, %options) = @_;
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#$self->SUPER::init(%options);
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$self->SUPER::check_options(%options);
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$instance_mode = $self;
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if (!defined($instance_mode->{option_results}->{sql_statement}) || $instance_mode->{option_results}->{sql_statement} eq '') {
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$instance_mode->{output}->add_option_msg(short_msg => "Need to specify '--sql-statement' option.");
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$instance_mode->{output}->option_exit();
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}
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$instance_mode->change_macros();
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}
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sub change_macros {
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my ($self, %options) = @_;
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foreach (('warning_string', 'critical_string')) {
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if (defined($self->{option_results}->{$_})) {
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$self->{option_results}->{$_} =~ s/%\{(.*?)\}/\$self->{result_values}->{$1}/g;
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}
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}
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}
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sub manage_selection {
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my ($self, %options) = @_;
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$self->{sql} = $options{sql};
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$self->{sql}->connect();
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$self->{sql}->query(query => $self->{option_results}->{sql_statement});
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$self->{rows} = {};
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my $row_count = 0;
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while (my $row = $self->{sql}->fetchrow_hashref()) {
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if (!defined($self->{option_results}->{key_column})) {
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$self->{rows}->{$self->{option_results}->{value_column} . $row_count} = { key_field => $row->{$self->{option_results}->{value_column}},
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value_field => $row->{$self->{option_results}->{value_column}}};
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$row_count++;
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} else {
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$self->{rows}->{$self->{option_results}->{key_column} . $row_count} = { key_field => $row->{$self->{option_results}->{key_column}},
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value_field => $row->{$self->{option_results}->{value_column}}};
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$row_count++;
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}
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}
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if (scalar(keys %{$self->{rows}}) <= 0) {
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$self->{output}->add_option_msg(short_msg => "No row returned or --key-column/--value-column do not correctly match selected field");
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$self->{output}->option_exit();
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}
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}
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1;
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__END__
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=head1 MODE
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Check SQL statement to query string pattern (You cannot have more than to fiels in select)
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=over 8
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=item B<--sql-statement>
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SQL statement that returns a string.
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=item B<--key-column>
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Key column (must be one of the selected field). NOT mandatory if you select only one field
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=item B<--value-column>
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Value column (must be one of the selected field). MANDATORY
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=item B<--printf-format>
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Specify a custom output message relying on printf formatting
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=item B<--printf-value>
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Specify scalar used to replace in printf
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(Can be: $self->{result_values}->{key_field}, $self->{result_values}->{value_field})
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=item B<--warning-string>
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Set warning condition (if statement syntax) for status evaluation.
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(Can be: %{key_field}, %{value_field})
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e.g --warning-string '%{key_field} eq 'Central' && %{value_field} =~ /127.0.0.1/'
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=item B<--critical-string>
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Set critical condition (if statement syntax) for status evaluation.
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(Can be: %{key_field} or %{value_field})
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=back
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=cut
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