class PushNotificationSubscriptionRequestServiceImpl implements PushNotificationSubscriptionRequestService {

    @Nonnull
    @Override
    public boolean checkIfPushNotificationSubscriptionRecipientExistsForUuId(@Nonnull final String uuId) {
        assertPushNotificationSubscriptionRequestUuId(uuId);
        LOGGER.debug("Checking if push notification subscription request exists for uuid - {}", uuId);
        final PushNotificationSubscriptionRequest request = pushNotificationSubscriptionRequestRepository.findByUuId(uuId);
        final boolean exists = (request != null);
        LOGGER.debug("Push notification subscription request lookup result for uuid - {} is - {}", uuId, exists);
        return exists;
    }

    public  PushNotificationSubscriptionRequestServiceImpl();

}