/** Setter function for numeric type. */
 protected function setNumeric($property, $value)
 {
     try {
         $this->{$property} = LoggerOptionConverter::toNumericEx($value);
     } catch (Exception $ex) {
         $value = var_export($value, true);
         $this->warn("Invalid value given for '{$property}' property: [{$value}]. Expected a number. Property not changed.");
     }
 }