/**
  * If appropriate, validate command data.
  *
  * @param $command
  */
 protected function validateCommand(Command $command)
 {
     $validator = $this->commandTranslator->toValidator($command);
     $validators = $this->app->config->get('app.validators.' . $validator, [$validator]);
     foreach ($validators as $validator) {
         if (class_exists($validator)) {
             $this->app->make($validator)->validate($command);
         }
     }
 }