vendor/shopware/core/System/Language/CachedLanguageLoader.php line 51

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  1. <?php declare(strict_types=1);
  3. namespace Shopware\Core\System\Language;
  5. use Psr\Cache\CacheItemPoolInterface;
  6. use Symfony\Component\EventDispatcher\EventSubscriberInterface;
  8. class CachedLanguageLoader implements LanguageLoaderInterface, EventSubscriberInterface
  9. {
  10.     private const CACHE_KEY = 'shopware.languages';
  12.     /**
  13.      * @var CacheItemPoolInterface
  14.      */
  15.     private $cache;
  17.     /**
  18.      * @var LanguageLoaderInterface
  19.      */
  20.     private $loader;
  22.     public function __construct(LanguageLoaderInterface $loader, CacheItemPoolInterface $cache)
  23.     {
  24.         $this->cache = $cache;
  25.         $this->loader = $loader;
  26.     }
  28.     public static function getSubscribedEvents(): array
  29.     {
  30.         return [
  31.             LanguageEvents::LANGUAGE_DELETED_EVENT => 'invalidateCache',
  32.             LanguageEvents::LANGUAGE_WRITTEN_EVENT => 'invalidateCache',
  33.         ];
  34.     }
  36.     public function loadLanguages(): array
  37.     {
  38.         $cacheItem = $this->cache->getItem(self::CACHE_KEY);
  39.         if ($cacheItem->isHit()) {
  40.             return $cacheItem->get();
  41.         }
  43.         $languages = $this->loader->loadLanguages();
  45.         $cacheItem->set($languages);
  46.         $this->cache->save($cacheItem);
  48.         return $languages;
  49.     }
  51.     public function invalidateCache(): void
  52.     {
  53.         $cacheItem = $this->cache->getItem(self::CACHE_KEY);
  54.         if (!$cacheItem->isHit()) {
  55.             return;
  56.         }
  57.         $this->cache->deleteItem($cacheItem->getKey());
  58.     }
  59. }