Logstash snmptrap dynamic fields with ruby

Elastic Stack Logstash
4

the code above reply ccan be wrong when key values changed their position.

i fixed this problem with this modification:

if [SNMPv2-MIB::snmpTrapOID.0] == "BRIDGE-MIB::topologyChange"
                                {
                                                ruby
                                                        {
                                                                code => "
                                                                                v_array=Array.new;
                                                                                i=0;
                                                                                event.to_hash.values.each { |v| v_array.push(v); i=i+1;};
                                                                                i=0;
                                                                                j=0;
                                                                                event.to_hash.keys.each { |k| event.set('vlanid',v_array[i]) if k.include?'VTP-MIB::vtpVlanIndexVlanID';
                                                                                event.set('portid',v_array[j]) if k.include?'IF-MIB::ifName';
                                                                                j=j+1; i=i+1;
                                                                };
                                                                                temp=Time.new;
                                                                                temp=temp.localtime.strftime ('%d %B %Y %H:%M:%S.%L %z' );
                                                                                event.set('timeid',temp);
                                                                                "
                                                                add_tag => "Topo_Change"
                                                                add_field => { "eventid" => "Topology_Change" }
}