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   1 <?php
   2
   3 namespace Drupal\pbt_entity_test\EventSubscriber;
   4
   5 use Drupal\dynamic_page_cache\EventSubscriber\DynamicPageCacheSubscriber;
   6 use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
   7 use Symfony\Component\HttpKernel\Event\GetResponseEvent;
   8
   9 /**
  10  * Mocked dynamic page cache subscriber.
  11  *
  12  * Ensures the requests are cached.
  13  */
  14 class MockedDynamicPageCacheSubscriber extends DynamicPageCacheSubscriber {
  15
  16   /**
  17    * {@inheritdoc}
  18    */
  19   public function onRouteMatch(GetResponseEvent $event) {
  20     // Sets the response for the current route, if cached.
  21     $cached = $this->renderCache->get($this->dynamicPageCacheRedirectRenderArray);
  22     if ($cached) {
  23       $response = $this->renderArrayToResponse($cached);
  24       $response->headers->set(self::HEADER, 'HIT');
  25       $event->setResponse($response);
  26     }
  27   }
  28
  29   /**
  30    * {@inheritdoc}
  31    */
  32   public function onResponse(FilterResponseEvent $event) {
  33     $response = $event->getResponse();
  34
  35     // Embed the response object in a render array so that RenderCache is able
  36     // to cache it, handling cache redirection for us.
  37     $response_as_render_array = $this->responseToRenderArray($response);
  38     $this->renderCache->set($response_as_render_array, $this->dynamicPageCacheRedirectRenderArray);
  39
  40     // The response was generated, mark the response as a cache miss. The next
  41     // time, it will be a cache hit.
  42     $response->headers->set(self::HEADER, 'MISS');
  43   }
  44 }