class SerializableTempstoreFactory

class SerializableTempstoreFactory extends SharedTempStoreFactory {
    
    /**
     * The current logged user.
     *
     * @var \Drupal\Core\Session\AccountProxyInterface
     */
    protected $currentUser;
    
    /**
     * Constructs a Drupal\Core\TempStore\SharedTempStoreFactory object.
     *
     * @param \Drupal\Core\KeyValueStore\KeyValueExpirableFactoryInterface $storage_factory
     *   The key/value store factory.
     * @param \Drupal\Core\Lock\LockBackendInterface $lock_backend
     *   The lock object used for this data.
     * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
     *   The request stack.
     * @param int $expire
     *   The time to live for items, in seconds.
     * @param \Drupal\Core\Session\AccountProxyInterface|null $current_user
     *   The current logged user.
     */
    public function __construct(KeyValueExpirableFactoryInterface $storage_factory, LockBackendInterface $lock_backend, RequestStack $request_stack, $expire = 604800, AccountProxyInterface $current_user = NULL) {
        parent::__construct($storage_factory, $lock_backend, $request_stack, $expire);
        $this->currentUser = $current_user ?: \Drupal::currentUser();
    }
    
    /**
     * {@inheritdoc}
     */
    public function get($collection, $owner = NULL) {
        // Use the currently authenticated user ID or the active user ID unless the
        // owner is overridden.
        if (!isset($owner)) {
            $owner = $this->currentUser
                ->id() ?: session_id();
        }
        // Store the data for this collection in the database.
        $storage = $this->storageFactory
            ->get("tempstore.shared.{$collection}");
        return new CoreSharedTempStore($storage, $this->lockBackend, $owner, $this->requestStack, $this->expire);
    }

}