#
# 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::common::cisco::standard::snmp::mode::ipsla;

use base qw(centreon::plugins::templates::counter);

use strict;
use warnings;
use Digest::MD5 qw(md5_hex);
use Math::Complex;

sub set_counters {
    my ($self, %options) = @_;
    
    $self->{maps_counters_type} = [
        { name => 'tag', type => 1, cb_prefix_output => 'prefix_tag_output', message_multiple => 'All RTT controls are ok',
          skipped_code => { -2 => 1, -3 => 1, -10 => 1 } }
    ];
    $self->{maps_counters}->{tag} = [
        { label => 'status', threshold => 0, set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, 
                    { name => 'rttMonCtrlAdminTag' },
                    { name => 'rttMonCtrlAdminRttType' },
                    { name => 'rttMonCtrlAdminThreshold' },
                    { name => 'rttMonEchoAdminPrecision' },
                    { name => 'rttMonLatestRttOperCompletionTime' },
                    { name => 'rttMonLatestRttOperSense' },
                    { name => 'rttMonLatestRttOperApplSpecificSense' },
                ],
                closure_custom_calc => $self->can('custom_status_calc'),
                closure_custom_output => $self->can('custom_status_output'),
                closure_custom_perfdata =>  sub { return 0; },
                closure_custom_threshold_check => $self->can('custom_status_threshold'),
            }
        },
        { label => 'CompletionTime', set => {
                key_values => [
                    { name => 'rttMonLatestRttOperCompletionTime' }, { name => 'rttMonEchoAdminPrecision' }, { name => 'rttMonCtrlAdminTag' }
                ],
                output_template => 'Completion Time : %s',
                perfdatas => [
                    { label => 'completion_time', value => 'rttMonLatestRttOperCompletionTime', template => '%s',
                      min => 0, label_extra_instance => 1 },
                ],
            }
        },
        { label => 'NumberOverThresholds', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'OverThresholds_1' }, { name => 'OverThresholds_2' }, { name => 'OverThresholds_times' },
                ],
                closure_custom_calc => $self->can('custom_NumberOverThresholds_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Number Over Thresholds : %s',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'number_over_thresholds', value => 'value', template => '%s',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'AverageDelaySD', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'OWSumSD_1' }, { name => 'OWSumSD_2' }, { name => 'OWSumSD_times' },
                    { name => 'NumOfOW_1' }, { name => 'NumOfOW_2' }, { name => 'NumOfOW_times' },
                ],
                closure_custom_calc => $self->can('custom_AverageDelaySD_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Average Delay SD : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'average_delay_sd', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'AverageDelayDS', set => {
                key_values => [ { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                                { name => 'OWSumDS_1' }, { name => 'OWSumDS_2' }, { name => 'OWSumDS_times' },
                                { name => 'NumOfOW_1' }, { name => 'NumOfOW_2' }, { name => 'NumOfOW_times' },
                              ],
                closure_custom_calc => $self->can('custom_AverageDelayDS_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Average Delay DS : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'average_delay_ds', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'PacketLossRatio', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'PacketLossDS_1' }, { name => 'PacketLossDS_2' }, { name => 'PacketLossDS_times' },
                    { name => 'PacketLossSD_1' }, { name => 'PacketLossSD_2' }, { name => 'PacketLossSD_times' },
                    { name => 'PacketMIA_1' }, { name => 'PacketMIA_2' }, { name => 'PacketMIA_times' },
                    { name => 'PacketLateArrival_1' }, { name => 'PacketLateArrival_2' }, { name => 'PacketLateArrival_times' },
                    { name => 'PacketOutOfSequence_1' }, { name => 'PacketOutOfSequence_2' }, { name => 'PacketOutOfSequence_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                ],
                closure_custom_calc => $self->can('custom_PacketLossRatio_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Packet Loss Ratio : %.2f %%',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'packet_loss_ratio', value => 'value', template => '%.2f', unit => '%',
                      label_extra_instance => 1, min => 0, max => 100 },
                ],
            }
        },
        { label => 'PercentagePacketsPositiveJitter', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'NumOfPositivesSD_1' }, { name => 'NumOfPositivesSD_2' }, { name => 'NumOfPositivesSD_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                ],
                closure_custom_calc => $self->can('custom_PercentagePacketsPositiveJitter_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Percentage of Packets that had Positive Jitter : %.2f',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'prct_jitter_per_packet_positive_jitter', value => 'value', template => '%.2f',
                      label_extra_instance => 1, },
                ],
            }
        },
        { label => 'AverageJitterPerPacketPositiveJitter', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'SumOfPositivesSD_1' }, { name => 'SumOfPositivesSD_2' }, { name => 'SumOfPositivesSD_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                ],
                closure_custom_calc => $self->can('custom_AverageJitterPerPacketPositiveJitter_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Average Jitter per Packet that had Positive Jitter : %.2f',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'average_jitter_per_packet_positive_jitter', value => 'value', template => '%.2f',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'PercentagePacketsNegativeJitter', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'NumOfNegativesSD_1' }, { name => 'NumOfNegativesSD_2' }, { name => 'NumOfNegativesSD_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                ],
                closure_custom_calc => $self->can('custom_PercentagePacketsNegativeJitter_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Percentage of Packets that had Negative Jitter : %.2f',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'prct_jitter_per_packet_negative_jitter', value => 'value', template => '%.2f',
                      label_extra_instance => 1,  },
                ],
            }
        },
        { label => 'AverageJitterPerPacketNegativeJitter', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'SumOfNegativesSD_1' }, { name => 'SumOfNegativesSD_2' }, { name => 'SumOfNegativesSD_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                ],
                closure_custom_calc => $self->can('custom_AverageJitterPerPacketNegativeJitter_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Average Jitter per Packet that had Negative Jitter : %.2f',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'average_jitter_per_packet_negative_jitter', value => 'value', template => '%.2f',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'AverageJitter', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'SumOfPositivesDS_1' }, { name => 'SumOfPositivesDS_2' }, { name => 'SumOfPositivesDS_times' },
                    { name => 'SumOfNegativesDS_1' }, { name => 'SumOfNegativesDS_2' }, { name => 'SumOfNegativesDS_times' },
                    { name => 'SumOfPositivesSD_1' }, { name => 'SumOfPositivesSD_2' }, { name => 'SumOfPositivesSD_times' },
                    { name => 'SumOfNegativesSD_1' }, { name => 'SumOfNegativesSD_2' }, { name => 'SumOfNegativesSD_times' },
                    { name => 'NumOfPositivesDS_1' }, { name => 'NumOfPositivesDS_2' }, { name => 'NumOfPositivesDS_times' },
                    { name => 'NumOfNegativesDS_1' }, { name => 'NumOfNegativesDS_2' }, { name => 'NumOfNegativesDS_times' },
                    { name => 'NumOfPositivesSD_1' }, { name => 'NumOfPositivesSD_2' }, { name => 'NumOfPositivesSD_times' },
                    { name => 'NumOfNegativesSD_1' }, { name => 'NumOfNegativesSD_2' }, { name => 'NumOfNegativesSD_times' },
                ],
                closure_custom_calc => $self->can('custom_AverageJitter_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Average Jitter : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'average_jitter', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'RTTStandardDeviation', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'RTTSum2High_1' }, { name => 'RTTSum2High_2' }, { name => 'RTTSum2High_times' },
                    { name => 'RTTSum2Low_1' }, { name => 'RTTSum2Low_2' }, { name => 'RTTSum2Low_times' },
                    { name => 'NumOfRTT_1' }, { name => 'NumOfRTT_2' }, { name => 'NumOfRTT_times' },
                    { name => 'RTTSum_1' }, { name => 'RTTSum_2' }, { name => 'RTTSum_times' },
                ],
                closure_custom_calc => $self->can('custom_RTTStandardDeviation_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'Round-Trip Time Standard Deviation : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'rtt_standard_deviation', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'DelaySource2DestinationStandardDeviation', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'OWSum2SDHigh_1' }, { name => 'OWSum2SDHigh_2' },  { name => 'OWSum2SDHigh_times' },
                    { name => 'OWSum2SDLow_1' }, { name => 'OWSum2SDLow_2' },  { name => 'OWSum2SDLow_times' },
                    { name => 'NumOfOW_1' }, { name => 'NumOfOW_2' },  { name => 'NumOfOW_times' },
                    { name => 'OWSumSD_1' }, { name => 'OWSumSD_2' },  { name => 'OWSumSD_times' },
                ],
                closure_custom_calc => $self->can('custom_DelaySource2DestinationStandardDeviation_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'One-Way Delay Source to Destination Standard Deviation : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'delay_src2dest_stdev', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'DelayDestination2SourceStandardDeviation', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'OWSum2DSHigh_1' }, { name => 'OWSum2DSHigh_2' }, { name => 'OWSum2DSHigh_times' },
                    { name => 'OWSum2DSLow_1' }, { name => 'OWSum2DSLow_2' }, { name => 'OWSum2DSLow_times' },
                    { name => 'NumOfOW_1' }, { name => 'NumOfOW_2' }, { name => 'NumOfOW_times' },
                    { name => 'OWSumDS_1' }, { name => 'OWSumDS_2' }, { name => 'OWSumDS_times' },
                ],
                closure_custom_calc => $self->can('custom_DelayDestination2SourceStandardDeviation_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'One-Way Delay Destination to Source Standard Deviation : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'delay_dest2src_stdev', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'JitterSource2DestinationStandardDeviation', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'Sum2PositivesSDHigh_1' }, { name => 'Sum2PositivesSDHigh_2' }, { name => 'Sum2PositivesSDHigh_times' },
                    { name => 'Sum2PositivesSDLow_1' }, { name => 'Sum2PositivesSDLow_2' }, { name => 'Sum2PositivesSDLow_times' },
                    { name => 'Sum2NegativesSDHigh_1' }, { name => 'Sum2NegativesSDHigh_2' }, { name => 'Sum2NegativesSDHigh_times' },
                    { name => 'Sum2NegativesSDLow_1' }, { name => 'Sum2NegativesSDLow_2' }, { name => 'Sum2NegativesSDLow_times' },
                    { name => 'SumOfPositivesSD_1' }, { name => 'SumOfPositivesSD_2' }, { name => 'SumOfPositivesSD_times' },
                    { name => 'SumOfNegativesSD_1' }, { name => 'SumOfNegativesSD_2' }, { name => 'SumOfNegativesSD_times' },
                    { name => 'NumOfPositivesSD_1' }, { name => 'NumOfPositivesSD_2' }, { name => 'NumOfPositivesSD_times' },
                    { name => 'NumOfNegativesSD_1' }, { name => 'NumOfNegativesSD_2' }, { name => 'NumOfNegativesSD_times' },
                ],
                closure_custom_calc => $self->can('custom_JitterSource2DestinationStandardDeviation_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'One-Way Jitter Source to Destination Standard Deviation : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'jitter_src2dest_stdev', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
        { label => 'JitterDestination2SourceStandardDeviation', set => {
                key_values => [
                    { name => 'rttMonCtrlAdminStatus' }, { name => 'rttMonCtrlAdminRttType' },
                    { name => 'Sum2PositivesDSHigh_1' }, { name => 'Sum2PositivesDSHigh_2' }, { name => 'Sum2PositivesDSHigh_times' },
                    { name => 'Sum2PositivesDSLow_1' }, { name => 'Sum2PositivesDSLow_2' }, { name => 'Sum2PositivesDSLow_times' },
                    { name => 'Sum2NegativesDSHigh_1' }, { name => 'Sum2NegativesDSHigh_2' }, { name => 'Sum2NegativesDSHigh_times' },
                    { name => 'Sum2NegativesDSLow_1' }, { name => 'Sum2NegativesDSLow_2' }, { name => 'Sum2NegativesDSLow_times' },
                    { name => 'SumOfPositivesDS_1' }, { name => 'SumOfPositivesDS_2' }, { name => 'SumOfPositivesDS_times' },
                    { name => 'SumOfNegativesDS_1' }, { name => 'SumOfNegativesDS_2' }, { name => 'SumOfNegativesDS_times' },
                    { name => 'NumOfPositivesDS_1' }, { name => 'NumOfPositivesDS_2' }, { name => 'NumOfPositivesDS_times' },
                    { name => 'NumOfNegativesDS_1' }, { name => 'NumOfNegativesDS_2' }, { name => 'NumOfNegativesDS_times' },
                ],
                closure_custom_calc => $self->can('custom_JitterDestination2SourceStandardDeviation_calc'),
                closure_custom_output => $self->can('custom_generic_output'),
                output_template => 'One-Way Jitter Destination to Source Standard Deviation : %.2f ms',
                threshold_use => 'value',
                perfdatas => [
                    { label => 'jitter_dest2src_stdev', value => 'value', template => '%.2f', unit => 'ms',
                      label_extra_instance => 1 },
                ],
            }
        },
    ];
}

sub prefix_tag_output {
    my ($self, %options) = @_;
    
    return "RTT '" . $options{instance_value}->{rttMonCtrlAdminTag} . "' ";
}

my $ipsla;
my $thresholds = {
    opersense => [
        ['ok', 'OK'],
        ['.*', 'CRITICAL'],
    ],
    applspecificsense => [
        ['.*', 'OK'],
    ],
};

###### Common func ######

sub get_my_delta {
    my ($self, %options) = @_;
    
    my $value;
    my ($old_time1, $old_time2) = split /_/, $options{old_datas}->{$self->{instance} . '_' . $options{name} . '_times'};
    my ($new_time1, $new_time2) = split /_/, $options{new_datas}->{$self->{instance} . '_' . $options{name} . '_times'};
    if (defined($old_time1) && defined($new_time1) && $old_time1 == $new_time1) {
        $value = $options{new_datas}->{$self->{instance} . '_' . $options{name} . '_1'} - $options{old_datas}->{$self->{instance} . '_' . $options{name} . '_1'} +
                 $options{new_datas}->{$self->{instance} . '_' . $options{name} . '_2'} - $options{old_datas}->{$self->{instance} . '_' . $options{name} . '_2'};
    } else {
        $value = $options{new_datas}->{$self->{instance} . '_' . $options{name} . '_1'} - $options{old_datas}->{$self->{instance} . '_' . $options{name} . '_2'} +
                 $options{new_datas}->{$self->{instance} . '_' . $options{name} . '_2'};
    }
    return $value;
}

sub custom_generic_output {
    my ($self, %options) = @_;
    
    return sprintf($self->{output_template}, $self->{result_values}->{value});
}

sub check_buffer_creation {
    my ($self, %options) = @_;
    
    if (!defined($options{old_datas}->{$self->{instance} . '_' . $options{name} . '_1'})) {
        $self->{error_msg} = "Buffer creation";
        return 1;
    }
    return 0;
}

###### STATUS ######

sub custom_status_threshold {
    my ($self, %options) = @_;
    my $status = 'ok';
    
    if ($self->{result_values}->{rttMonCtrlAdminStatus} !~ /active/) {
        return $status;
    }
   
    $status = $ipsla->get_severity(section => $self->{result_values}->{section}, value => $self->{result_values}->{opersense});
    return $status;
}

sub custom_status_output {
    my ($self, %options) = @_;
    my $msg = 'Status : ';
    
    if ($self->{result_values}->{rttMonCtrlAdminStatus} !~ /active/) {
        $msg .= 'not active (' . $self->{result_values}->{rttMonCtrlAdminStatus} . ')';
        return $msg;
    }
    $msg .= "operation sense is '" . $self->{result_values}->{opersense} . "'";
    return $msg;
}

sub custom_status_calc {
    my ($self, %options) = @_;

    $self->{result_values}->{rttMonCtrlAdminStatus} = $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'};
    $self->{result_values}->{rttMonCtrlAdminTag} = $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminTag'};
    $self->{result_values}->{rttMonCtrlAdminRttType} = $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'};
    $self->{result_values}->{rttMonCtrlAdminThreshold} = $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminThreshold'};
    $self->{result_values}->{rttMonEchoAdminPrecision} = $options{new_datas}->{$self->{instance} . '_rttMonEchoAdminPrecision'};
    $self->{result_values}->{rttMonLatestRttOperCompletionTime} = $options{new_datas}->{$self->{instance} . '_rttMonLatestRttOperCompletionTime'};
    $self->{result_values}->{rttMonLatestRttOperSense} = $options{new_datas}->{$self->{instance} . '_rttMonLatestRttOperSense'};
    $self->{result_values}->{rttMonLatestRttOperApplSpecificSense} = $options{new_datas}->{$self->{instance} . '_rttMonLatestRttOperApplSpecificSense'};
    $self->{result_values}->{opersense} = $self->{result_values}->{rttMonLatestRttOperSense};
    $self->{result_values}->{section} = 'opersense';
    if ($self->{result_values}->{opersense} =~ /applicationSpecific/i) {
        $self->{result_values}->{opersense} = $self->{result_values}->{rttMonLatestRttOperApplSpecificSense};
        $self->{result_values}->{section} = 'applspecificsense';
    }
    return 0;
}

####### 1 - Number Over Thresholds #######
sub custom_NumberOverThresholds_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'OverThresholds'));
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'OverThresholds');
    return 0;
}

####### 2 - Average Delay SD #######
sub custom_AverageDelaySD_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'OWSumSD'));
    my $num_of_ow = get_my_delta($self, %options, name => 'NumOfOW');
    if ($num_of_ow == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'OWSumSD') / $num_of_ow;
    return 0;
}

####### 3 - Average Delay DS #######
sub custom_AverageDelayDS_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'OWSumDS'));
    my $num_of_ow = get_my_delta($self, %options, name => 'NumOfOW');
    if ($num_of_ow == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'OWSumDS') / $num_of_ow;
    return 0;
}

####### 4 - Packet Loss Ratio   #######
sub custom_PacketLossRatio_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'PacketLossDS'));
    my $divide = (get_my_delta($self, %options, name => 'PacketLossSD') + get_my_delta($self, %options, name => 'PacketLossDS') + get_my_delta($self, %options, name => 'PacketMIA') + 
                                        get_my_delta($self, %options, name => 'PacketLateArrival') + get_my_delta($self, %options, name => 'PacketOutOfSequence') + get_my_delta($self, %options, name => 'NumOfRTT'));
    if ($divide == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
    
    $self->{result_values}->{value} = ((get_my_delta($self, %options, name => 'PacketLossDS') + get_my_delta($self, %options, name => 'PacketLossSD') + get_my_delta($self, %options, name => 'PacketMIA')) * 100 ) / 
                                       $divide;
    return 0;
}

####### 5 - Percentage of Packets that had Positive Jitter   #######
sub custom_PercentagePacketsPositiveJitter_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfPositivesSD'));
    my $num_of_rtt = get_my_delta($self, %options, name => 'NumOfRTT');
    if ($num_of_rtt == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'NumOfPositivesSD') / $num_of_rtt;
    return 0;
}

####### 6 - Average Jitter per Packet that had Positive Jitter   #######
sub custom_AverageJitterPerPacketPositiveJitter_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'SumOfPositivesSD'));
    my $num_of_rtt = get_my_delta($self, %options, name => 'NumOfRTT');
    if ($num_of_rtt == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'SumOfPositivesSD') / $num_of_rtt;
    return 0;
}

####### 7 - Percentage of Packets that had Negative Jitter   #######
sub custom_PercentagePacketsNegativeJitter_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfNegativesSD'));
    my $num_of_rtt = get_my_delta($self, %options, name => 'NumOfRTT');
    if ($num_of_rtt == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'NumOfNegativesSD') / $num_of_rtt;
    return 0;
}

####### 8 - Average Jitter per Packet that had Negative Jitter   #######
sub custom_AverageJitterPerPacketNegativeJitter_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'SumOfNegativesSD'));
    my $num_of_rtt = get_my_delta($self, %options, name => 'NumOfRTT');
    if ($num_of_rtt == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = get_my_delta($self, %options, name => 'SumOfNegativesSD') / $num_of_rtt;
    return 0;
}

####### 9 - Average Jitter   #######
sub custom_AverageJitter_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'SumOfPositivesDS'));
    my $divide = (get_my_delta($self, %options, name => 'NumOfPositivesDS') + get_my_delta($self, %options, name => 'NumOfNegativesDS') + get_my_delta($self, %options, name => 'NumOfPositivesSD') + get_my_delta($self, %options, name => 'NumOfNegativesSD'));
    if ($divide == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }

    $self->{result_values}->{value} = (
        get_my_delta($self, %options, name => 'SumOfPositivesDS') +
        get_my_delta($self, %options, name => 'SumOfNegativesDS') +
        get_my_delta($self, %options, name => 'SumOfPositivesSD') +
        get_my_delta($self, %options, name => 'SumOfNegativesSD')) / $divide;
    return 0;
}

####### 10 - Round-Trip Time Standard Deviation   #######
sub custom_RTTStandardDeviation_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfRTT'));
    my $num_of_rtt = get_my_delta($self, %options, name => 'NumOfRTT');
    if ($num_of_rtt == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = sqrt(
        ((get_my_delta($self, %options, name => 'RTTSum2High') * 2 ** 32 + get_my_delta($self, %options, name => 'RTTSum2Low')) / $num_of_rtt) - 
         (get_my_delta($self, %options, name => 'RTTSum') / $num_of_rtt) ** 2
    );
    return 0;
}

####### 11 - One-Way Delay Source to Destination Standard Deviation  #######
sub custom_DelaySource2DestinationStandardDeviation_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfOW'));
    my $num_of_ow = get_my_delta($self, %options, name => 'NumOfOW');
    if ($num_of_ow == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = sqrt(
        ((get_my_delta($self, %options, name => 'OWSum2SDHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'OWSum2SDLow')) / $num_of_ow) -
        (get_my_delta($self, %options, name => 'OWSumSD') / $num_of_ow) ** 2
    );
    return 0;
}

####### 12 - One-Way Delay Destination to Source Standard Deviation  #######
sub custom_DelayDestination2SourceStandardDeviation_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfOW'));
    my $num_of_ow = get_my_delta($self, %options, name => 'NumOfOW');
    if ($num_of_ow == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = sqrt(
        ((get_my_delta($self, %options, name => 'OWSum2DSHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'OWSum2DSLow')) / $num_of_ow) - 
        (get_my_delta($self, %options, name => 'OWSumDS') / $num_of_ow) ** 2
    );
    return 0;
}

####### 13 - One-Way Jitter Source to Destination Standard Deviation #######
sub custom_JitterSource2DestinationStandardDeviation_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfPositivesSD'));
    my $divide = (get_my_delta($self, %options, name => 'NumOfPositivesSD') + get_my_delta($self, %options, name => 'NumOfNegativesSD'));
    if ($divide == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = sqrt(
        ((get_my_delta($self, %options, name => 'Sum2PositivesSDHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'Sum2PositivesSDLow') + get_my_delta($self, %options, name => 'Sum2NegativesSDHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'Sum2NegativesSDLow')) / $divide) - 
        ((get_my_delta($self, %options, name => 'SumOfPositivesSD') + get_my_delta($self, %options, name => 'SumOfNegativesSD')) / $divide) ** 2
    );
    return 0;
}

####### 14 - JitterDestination2SourceStandardDeviation #######
sub custom_JitterDestination2SourceStandardDeviation_calc {
    my ($self, %options) = @_;

    if ($options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminStatus'} !~ /active/ && 
        $options{new_datas}->{$self->{instance} . '_rttMonCtrlAdminRttType'} !~ /jitter/) {
        return -2;
    }
    return -1 if (check_buffer_creation($self, %options, name => 'NumOfPositivesDS'));
    my $divide = (get_my_delta($self, %options, name => 'NumOfPositivesDS') + get_my_delta($self, %options, name => 'NumOfNegativesDS'));
    if ($divide == 0) {
        $self->{error_msg} = "wait new values";
        return -3;
    }
        
    $self->{result_values}->{value} = sqrt(
        ((get_my_delta($self, %options, name => 'Sum2PositivesDSHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'Sum2PositivesDSLow') + get_my_delta($self, %options, name => 'Sum2NegativesDSHigh') * 2 ** 32 + get_my_delta($self, %options, name => 'Sum2NegativesDSLow')) / $divide) - 
        ((get_my_delta($self, %options, name => 'SumOfPositivesDS') + get_my_delta($self, %options, name => 'SumOfNegativesDS')) / $divide) ** 2
    );
    return 0;
}

my $oid_rttMonCtrlAdminEntry        = '.1.3.6.1.4.1.9.9.42.1.2.1.1';
my $oid_rttMonEchoAdminPrecision    = '.1.3.6.1.4.1.9.9.42.1.2.2.1.37';

my $oid_rttMonLatestRttOperEntry    = '.1.3.6.1.4.1.9.9.42.1.2.10.1';

# Packet Loss Ratio (unit: %):
#    [(RttMonJitterStatsPacketLossDS + RttMonJitterStatsPacketLossSD + RttMonJitterStatsPacketMIA) * 100 ] / 
#           [RttMonJitterStatsPacketLossSD + RttMonJitterStatsPacketLossDS + RttMonJitterStatsPacketMIA + 
#            RttMonJitterStatsPacketLateArrival + RttMonJitterStatsPacketOutOfSequence + RttMonJitterStatsNumOfRTT ]

# Percentage (unit: %):
#    NumOfPositiveSD/NumOfRTT (Percentage of Packets that had Positive Jitter)
#    SumOfPositiveSD/NumOfRTT (Average Jitter per Packet that had Positive Jitter)
#    NumOfNegativeSD/NumOfRTT (Percentage of Packets that had Negative Jitter)
#    SumOfNegativeSD/NumOfRTT (Average Jitter per Packet that had Negative Jitter)
#    
# Average Jitter (unit: ms):
#  jitterSum = sumOfPositivesDS + sumOfNegativesDS + sumOfPositivesSD + sumOfNegativesSD;
#  jitterNum = numOfPositivesDS + numOfNegativesDS + numOfPositivesSD + numOfNegativesSD;
#  avgJitter = jitterSum/jitterNum;

# Delays (unit: ms):
#   RttMonJitterStatsOWSumSD / RttMonJitterStatsNumOfOW
#   RttMonJitterStatsOWSumDS / RttMonJitterStatsNumOfOW

# Round-Trip Time Standard Deviation (unit: ms):
#   Square Root of [ ((RttMonJitterStatsRTTSum2High * 2^32 + RttMonJitterStatsRTTSum2Low) / RttMonJitterStatsNumOfRTT) - (RttMonJitterStatsRTTSum / RttMonJitterStatsNumOfRTT)^2 ]
# One-Way Delay Source to Destination Standard Deviation (unit: ms):
#    Square Root of [ ((RttMonJitterStatsOWSum2SDHigh * 2^32 + RttMonJitterStatsOWSum2SDLow) / RttMonJitterStatsNumOfOW) - (RttMonJitterStatsOWSumSD / RttMonJitterStatsNumOfOW)^2 ]
# One-Way Delay Destination to Source Standard Deviation (unit: ms):
#    Square Root of [ ((RttMonJitterStatsOWSum2DSHigh * 2^32 + RttMonJitterStatsOWSum2DSLow) / RttMonJitterStatsNumOfOW) - (RttMonJitterStatsOWSumDS / RttMonJitterStatsNumOfOW)^2 ]
# One-Way Jitter Source to Destination Standard Deviation (unit: ms):
#    Square Root of [ ((RttMonJitterStatsSum2PositivesSDHigh * 2^32 + RttMonJitterStatsSum2PositivesSDLow + RttMonJitterStatsSum2NegativesSDHigh * 2^32 + RttMonJitterStatsSum2NegativesSDLow) / (RttMonJitterStatsNumOfPositivesSD + RttMonJitterStatsNumOfNegativesSD)) - ((RttMonJitterStatsSumOfPositivesSD + RttMonJitterStatsSumOfNegativesSD) / (RttMonJitterStatsNumOfPositivesSD + RttMonJitterStatsNumOfNegativesSD))^2 ]
# One-Way Jitter Destination to Source Standard Deviation (unit: ms):
#    Square Root of [ ((RttMonJitterStatsSum2PositivesDSHigh * 2^32 + RttMonJitterStatsSum2PositivesDSLow + RttMonJitterStatsSum2NegativesDSHigh * 2^32 + RttMonJitterStatsSum2NegativesDSLow) / (RttMonJitterStatsNumOfPositivesDS + RttMonJitterStatsNumOfNegativesDS)) - ((RttMonJitterStatsSumOfPositivesDS + RttMonJitterStatsSumOfNegativesDS) / (RttMonJitterStatsNumOfPositivesDS + RttMonJitterStatsNumOfNegativesDS))^2 ]

my $oid_rttMonJitterStatsEntry  = '.1.3.6.1.4.1.9.9.42.1.3.5.1';
my $oids_jitter_stats = {
    NumOfRTT               => '.1.3.6.1.4.1.9.9.42.1.3.5.1.4',
    OverThresholds         => '.1.3.6.1.4.1.9.9.42.1.3.5.1.3',
    RTTSum                 => '.1.3.6.1.4.1.9.9.42.1.3.5.1.5',
    RTTSum2Low             => '.1.3.6.1.4.1.9.9.42.1.3.5.1.6',
    RTTSum2High            => '.1.3.6.1.4.1.9.9.42.1.3.5.1.7',
    NumOfOW                => '.1.3.6.1.4.1.9.9.42.1.3.5.1.51',
    OWSumSD                => '.1.3.6.1.4.1.9.9.42.1.3.5.1.41', # low
    OWSumSDHigh            => '.1.3.6.1.4.1.9.9.42.1.3.5.1.67', # high
    OWSumDS                => '.1.3.6.1.4.1.9.9.42.1.3.5.1.46', # low
    OWSumDSHigh            => '.1.3.6.1.4.1.9.9.42.1.3.5.1.68', # high
    SumOfPositivesSD       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.13',
    SumOfNegativesSD       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.19',
    SumOfPositivesDS       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.25',
    SumOfNegativesDS       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.31',
    NumOfNegativesSD       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.18',
    Sum2NegativesSDLow     => '.1.3.6.1.4.1.9.9.42.1.3.5.1.20',
    Sum2NegativesSDHigh    => '.1.3.6.1.4.1.9.9.42.1.3.5.1.21',
    NumOfNegativesDS       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.30',
    Sum2NegativesDSLow     => '.1.3.6.1.4.1.9.9.42.1.3.5.1.32',
    Sum2NegativesDSHigh    => '.1.3.6.1.4.1.9.9.42.1.3.5.1.33',
    NumOfPositivesSD       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.12',
    Sum2PositivesSDLow     => '.1.3.6.1.4.1.9.9.42.1.3.5.1.14',
    Sum2PositivesSDHigh    => '.1.3.6.1.4.1.9.9.42.1.3.5.1.15',
    NumOfPositivesDS       => '.1.3.6.1.4.1.9.9.42.1.3.5.1.24',
    Sum2PositivesDSLow     => '.1.3.6.1.4.1.9.9.42.1.3.5.1.26',
    Sum2PositivesDSHigh    => '.1.3.6.1.4.1.9.9.42.1.3.5.1.27',
    PacketLossSD           => '.1.3.6.1.4.1.9.9.42.1.3.5.1.34',
    PacketLossDS           => '.1.3.6.1.4.1.9.9.42.1.3.5.1.35',
    PacketOutOfSequence    => '.1.3.6.1.4.1.9.9.42.1.3.5.1.36',
    PacketMIA              => '.1.3.6.1.4.1.9.9.42.1.3.5.1.37',
    PacketLateArrival      => '.1.3.6.1.4.1.9.9.42.1.3.5.1.38',
    OWSum2SDLow            => '.1.3.6.1.4.1.9.9.42.1.3.5.1.42',
    OWSum2SDHigh           => '.1.3.6.1.4.1.9.9.42.1.3.5.1.43',
    OWSum2DSLow            => '.1.3.6.1.4.1.9.9.42.1.3.5.1.47',
    OWSum2DSHigh           => '.1.3.6.1.4.1.9.9.42.1.3.5.1.48',
    MaxOfICPIF             => '.1.3.6.1.4.1.9.9.42.1.3.5.1.59',
    MaxOfMOS               => '.1.3.6.1.4.1.9.9.42.1.3.5.1.57',
};

my %map_admin_rtt_type = (
    1 => 'echo1', 2 => 'pathEcho', 3 => 'fileIO', 4 => 'script', 5 => 'udpEcho', 6 => 'tcpConnect',
    7 => 'http', 8 => 'dns', 9 => 'jitter', 10 => 'dlsw', 11 => 'dhcp', 12 => 'ftp',
    13 => 'voip', 14 => 'rtp', 15 => 'lspGroup', 16 => 'icmpjitter', 17 => 'lspPing',
    18 => 'lspTrace', 19 => 'ethernetPing', 20 => 'ethernetJitter',
    21 => 'lspPingPseudowire', 22 => 'video', 23 => 'y1731Delay', 24 => 'y1731Loss', 25 => 'mcastJitter',
);
my %map_admin_status = (
    1 => 'active', 2 => 'notInService', 3 => 'notReady', 4 => 'createAndGo', 5 => 'createAndWait', 6 => 'destroy',
);
my %map_admin_precision = (
    1 => 'ms',
    2 => 'us',
);
my %map_rtt_oper_sense = (
    0 => 'other', 1 => 'ok', 2 => 'disconnected', 3 => 'overThreshold', 4 => 'timeout', 5 => 'busy',
    6 => 'notConnected', 7 => 'dropped', 8 => 'sequenceError', 9 => 'verifyError', 10 => 'applicationSpecific',
    11 => 'dnsServerTimeout', 12 => 'tcpConnectTimeout', 13 => 'httpTransactionTimeout', 14 => 'dnsQueryError',
    15 => 'httpError', 16 => 'error', 17 => 'mplsLspEchoTxError', 18 => 'mplsLspUnreachable',
    19 => 'mplsLspMalformedReq', 20 => 'mplsLspReachButNotFEC', 21 => 'enableOk', 22 => 'enableNoConnect',
    23 => 'enableVersionFail', 24 => 'enableInternalError', 25 => 'enableAbort', 26 => 'enableFail',
    27 => 'enableAuthFail', 28 => 'enableFormatError', 29 => 'enablePortInUse', 30 => 'statsRetrieveOk',
    31 => 'statsRetrieveNoConnect', 32 => 'statsRetrieveVersionFail', 33 => 'statsRetrieveInternalError',
    34 => 'statsRetrieveAbort', 35 => 'statsRetrieveFail', 36 => 'statsRetrieveAuthFail',
    37 => 'statsRetrieveFormatError', 38 => 'statsRetrievePortInUse',
);

my $mapping = {
    rttMonCtrlAdminTag          => { oid => '.1.3.6.1.4.1.9.9.42.1.2.1.1.3' },
    rttMonCtrlAdminRttType      => { oid => '.1.3.6.1.4.1.9.9.42.1.2.1.1.4', map => \%map_admin_rtt_type },
    rttMonCtrlAdminThreshold    => { oid => '.1.3.6.1.4.1.9.9.42.1.2.1.1.5' },
    rttMonCtrlAdminStatus       => { oid => '.1.3.6.1.4.1.9.9.42.1.2.1.1.9', map => \%map_admin_status },
};
my $mapping2 = {
    rttMonEchoAdminPrecision    => { oid => '.1.3.6.1.4.1.9.9.42.1.2.2.1.37', map => \%map_admin_precision },
};
my $mapping3 = {
    rttMonLatestRttOperCompletionTime       => { oid => '.1.3.6.1.4.1.9.9.42.1.2.10.1.1' },
    rttMonLatestRttOperSense                => { oid => '.1.3.6.1.4.1.9.9.42.1.2.10.1.2', map => \%map_rtt_oper_sense },
    rttMonLatestRttOperApplSpecificSense    => { oid => '.1.3.6.1.4.1.9.9.42.1.2.10.1.3' },
};

sub new {
    my ($class, %options) = @_;
    my $self = $class->SUPER::new(package => __PACKAGE__, %options, statefile => 1);
    bless $self, $class;
    
    $options{options}->add_options(arguments => {
        'filter-tag:s'          => { name => 'filter_tag', default => '.*' },
        'threshold-overload:s@' => { name => 'threshold_overload' },
    });

    return $self;
}

sub check_options {
    my ($self, %options) = @_;
    $self->SUPER::check_options(%options);
    
    $self->{overload_th} = {};
    foreach my $val (@{$self->{option_results}->{threshold_overload}}) {
        if ($val !~ /^(.*?),(.*?),(.*)$/) {
            $self->{output}->add_option_msg(short_msg => "Wrong threshold-overload option '" . $val . "'.");
            $self->{output}->option_exit();
        }
        my ($section, $status, $filter) = ($1, $2, $3);
        if ($self->{output}->is_litteral_status(status => $status) == 0) {
            $self->{output}->add_option_msg(short_msg => "Wrong threshold-overload status '" . $val . "'.");
            $self->{output}->option_exit();
        }
        $self->{overload_th}->{$section} = [] if (!defined($self->{overload_th}->{$section}));
        push @{$self->{overload_th}->{$section}}, {filter => $filter, status => $status};
    }
    
    # to be used on custom function
    $ipsla = $self;
}

sub manage_selection {
    my ($self, %options) = @_;

    $self->{cache_name} = "cache_cisco_" . $options{snmp}->get_hostname()  . '_' . $options{snmp}->get_port() . '_' . $self->{mode} . '_' .
        (defined($self->{option_results}->{filter_tag}) ? md5_hex($self->{option_results}->{filter_tag}) : md5_hex('all')) . '_' .
        (defined($self->{option_results}->{filter_counters}) ? md5_hex($self->{option_results}->{filter_counters}) : md5_hex('all'));
    
    $self->{results} = $options{snmp}->get_multiple_table(
        oids => [
            { oid => $oid_rttMonCtrlAdminEntry, end => $mapping->{rttMonCtrlAdminStatus}->{oid} },
            { oid => $oid_rttMonEchoAdminPrecision },
            { oid => $oid_rttMonLatestRttOperEntry, end => $mapping3->{rttMonLatestRttOperApplSpecificSense}->{oid} },
            { oid => $oid_rttMonJitterStatsEntry },
        ],
        nothing_quit => 1
    );

    $self->{tag} = {};
    foreach my $oid ($options{snmp}->oid_lex_sort(keys %{$self->{results}->{$oid_rttMonCtrlAdminEntry}})) {
        next if ($oid !~ /^$mapping->{rttMonCtrlAdminTag}->{oid}\.(.*)$/);
        my $instance = $1;
        my $result = $options{snmp}->map_instance(mapping => $mapping, results => $self->{results}->{$oid_rttMonCtrlAdminEntry}, instance => $instance);
        $result->{rttMonCtrlAdminTag} = defined($result->{rttMonCtrlAdminTag}) && $result->{rttMonCtrlAdminTag} ne '' ? $result->{rttMonCtrlAdminTag} : $instance;
        my $tag_name = $result->{rttMonCtrlAdminTag};
        if (!defined($tag_name) || $tag_name eq '') {
            $self->{output}->output_add(long_msg => "skipping: please set a tag name");
            next;
        }
        if (defined($self->{tag}->{$tag_name})) {
            $self->{output}->output_add(long_msg => "skipping  '" . $tag_name . "': duplicate (please change the tag name).");
            next;
        }
        if (defined($self->{option_results}->{filter_tag}) && $self->{option_results}->{filter_tag} ne '' &&
            $tag_name !~ /$self->{option_results}->{filter_tag}/) {
            $self->{output}->output_add(long_msg => "skipping  '" . $tag_name . "': no matching filter.");
            next;
        }
        $self->{tag}->{$tag_name} = { %{$result} };
        $result = $options{snmp}->map_instance(mapping => $mapping2, results => $self->{results}->{$oid_rttMonEchoAdminPrecision}, instance => $instance);
        $self->{tag}->{$tag_name} = { %{$result}, %{$self->{tag}->{$tag_name}} };
        $result = $options{snmp}->map_instance(mapping => $mapping3, results => $self->{results}->{$oid_rttMonLatestRttOperEntry}, instance => $instance);
        $self->{tag}->{$tag_name} = { %{$result}, %{$self->{tag}->{$tag_name}} };
        
        # there are two entries with rotation: 1 -> last hour, 2 -> current hour.
        foreach my $key (keys %{$oids_jitter_stats}) {
            $self->{tag}->{$tag_name}->{$key . '_1'} = 0;
            $self->{tag}->{$tag_name}->{$key . '_2'} = 0;
            my $i = 1;
            my $instances = [];
            foreach my $oid2 ($options{snmp}->oid_lex_sort(keys %{$self->{results}->{$oid_rttMonJitterStatsEntry}})) {
                next if ($oid2 !~ /^$oids_jitter_stats->{$key}\.$instance.(\d+)/);
                push @{$instances}, $1;
                $self->{tag}->{$tag_name}->{$key . '_' . $i} = $self->{results}->{$oid_rttMonJitterStatsEntry}->{$oid2};
                $i++;
            }
            $self->{tag}->{$tag_name}->{$key . '_times'} = join('_', @{$instances});
        }        
    }
    
    if (scalar(keys %{$self->{tag}}) <= 0) {
        $self->{output}->add_option_msg(short_msg => "No entry found.");
        $self->{output}->option_exit();
    } 
}

sub get_severity {
    my ($self, %options) = @_;
    my $status = 'UNKNOWN'; # default 
    
    if (defined($self->{overload_th}->{$options{section}})) {
        foreach (@{$self->{overload_th}->{$options{section}}}) {            
            if ($options{value} =~ /$_->{filter}/i) {
                $status = $_->{status};
                return $status;
            }
        }
    }
    foreach (@{$thresholds->{$options{section}}}) {           
        if ($options{value} =~ /$$_[0]/i) {
            $status = $$_[1];
            return $status;
        }
    }
    
    return $status;
}

1;

__END__

=head1 MODE

Check RTT Controls (CISCO-RTT-MON)

=over 8

=item B<--filter-tag>

Filter tag (Default: '.*')

=item B<--threshold-overload>

Set to overload default threshold values (syntax: section,status,regexp)
It used before default thresholds (order stays).
Example: --threshold-overload='opersense,CRITICAL,^(?!(ok)$)'

=item B<--warning-*>

Threshold warning.
Can be: 'CompletionTime', 'NumberOverThresholds', 'AverageDelaySD', 'AverageDelayDS', 'PacketLossRatio', 
'PercentagePacketsPositiveJitter', 'AverageJitterPerPacketPositiveJitter', 'PercentagePacketsNegativeJitter', 'AverageJitterPerPacketNegativeJitter',
'AverageJitter', 'RTTStandardDeviation', 'DelaySource2DestinationStandardDeviation', 'DelayDestination2SourceStandardDeviation', 
'JitterSource2DestinationStandardDeviation', 'JitterDestination2SourceStandardDeviation'.

=item B<--critical-*>

Threshold critical.
Can be: 'CompletionTime', 'NumberOverThresholds', 'AverageDelaySD', 'AverageDelayDS', 'PacketLossRatio', 
'PercentagePacketsPositiveJitter', 'AverageJitterPerPacketPositiveJitter', 'PercentagePacketsNegativeJitter', 'AverageJitterPerPacketNegativeJitter',
'AverageJitter', 'RTTStandardDeviation', 'DelaySource2DestinationStandardDeviation', 'DelayDestination2SourceStandardDeviation', 
'JitterSource2DestinationStandardDeviation', 'JitterDestination2SourceStandardDeviation'.

=back

=cut