public function retrieveUrlForOrder(OrderInterface $order)
 {
     $paymentMethod = $this->getPaymentMethodFromSystemName($order->getPaymentInstruction()->getPaymentSystemName());
     /** @var $gateway \Omnipay\Common\AbstractGateway */
     $gateway = $this->container->get('hyper_ads.payment.gateway.' . $paymentMethod);
     /** @var $response \Omnipay\BitPay\Message\PurchaseResponse */
     $response = $gateway->purchase($this->getParameters($order))->send();
     if ($response->isRedirect()) {
         return $response->getRedirectUrl();
     } elseif (!$response->isSuccessful()) {
         throw new PaymentException('Problem with getting payment URL. Cause: ' . $response->getMessage());
     } else {
         throw new PaymentException('Payment that does not return redirects to the payment page are not supported');
     }
 }
 private function getPosData(OrderInterface $order)
 {
     return array('order' => $order->getId());
 }
 private function getHash(OrderInterface $order)
 {
     return $order->getId() . '_' . $order->getPaymentInstruction()->getId();
 }
 /**
  * @return \JMS\Payment\CoreBundle\Model\PaymentInterface
  */
 private function getPaymentFromOrder(OrderInterface $order)
 {
     if (null === ($pendingTransaction = $order->getPaymentInstruction()->getPendingTransaction())) {
         $this->logger->info('Pending transaction for order not found', array('orderId' => $order->getId(), 'requestId' => $this->request->getId()));
         $payment = $this->pluginController->createPayment($order->getPaymentInstruction()->getId(), round($order->getPaymentInstruction()->getAmount() - $order->getPaymentInstruction()->getDepositedAmount(), 2));
     } else {
         $payment = $pendingTransaction->getPayment();
     }
     return $payment;
 }