code: protected function execute(InputInterface $input, OutputInterface $output)
      {
          $name = $input->getArgument('name');
  
          /** @var $factory \Orkestra\Bundle\ApplicationBundle\Worker\WorkerFactoryInterface */
          $factory = $this->getContainer()->get('orkestra.worker_factory');
          $worker = $factory->getWorker($name);
  
          $worker->execute();
  
          $output->writeln(array(
              '',
              'The worker has completed successfully.',
              ''
          ));
      }
docs: Executes the current command
  
  @param \Symfony\Component\Console\Input\InputInterface $input
  @param \Symfony\Component\Console\Output\OutputInterface $output