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   1  <?php
   2  
   3  /*
   4   * This file is part of the Symfony package.
   5   *
   6   * (c) Fabien Potencier <fabien@symfony.com>
   7   *
   8   * For the full copyright and license information, please view the LICENSE
   9   * file that was distributed with this source code.
  10   */
  11  
  12  namespace Symfony\Component\HttpKernel\EventListener;
  13  
  14  use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  15  use Symfony\Component\HttpFoundation\StreamedResponse;
  16  use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
  17  use Symfony\Component\HttpKernel\KernelEvents;
  18  
  19  /**
  20   * StreamedResponseListener is responsible for sending the Response
  21   * to the client.
  22   *
  23   * @author Fabien Potencier <fabien@symfony.com>
  24   */
  25  class StreamedResponseListener implements EventSubscriberInterface
  26  {
  27      /**
  28       * Filters the Response.
  29       */
  30      public function onKernelResponse(FilterResponseEvent $event)
  31      {
  32          if (!$event->isMasterRequest()) {
  33              return;
  34          }
  35  
  36          $response = $event->getResponse();
  37  
  38          if ($response instanceof StreamedResponse) {
  39              $response->send();
  40          }
  41      }
  42  
  43      public static function getSubscribedEvents()
  44      {
  45          return array(
  46              KernelEvents::RESPONSE => array('onKernelResponse', -1024),
  47          );
  48      }
  49  }