public static function createCheckoutRequest(Credentials $credentials, PaymentRequest $paymentRequest)
 {
     LogPagSeguro::info("PaymentService.Register(" . $paymentRequest->toString() . ") - begin");
     $connectionData = new PagSeguroConnectionData($credentials, self::serviceName);
     try {
         $connection = new HttpConnection();
         $connection->post(self::buildCheckoutRequestUrl($connectionData), PaymentParser::getData($paymentRequest), $connectionData->getServiceTimeout(), $connectionData->getCharset());
         $httpStatus = new HttpStatus($connection->getStatus());
         switch ($httpStatus->getType()) {
             case 'OK':
                 $PaymentParserData = PaymentParser::readSuccessXml($connection->getResponse());
                 $paymentUrl = self::buildCheckoutUrl($connectionData, $PaymentParserData->getCode());
                 LogPagSeguro::info("PaymentService.Register(" . $paymentRequest->toString() . ") - end {1}" . $PaymentParserData->getCode());
                 break;
             case 'BAD_REQUEST':
                 $errors = PaymentParser::readErrors($connection->getResponse());
                 $e = new PagSeguroServiceException($httpStatus, $errors);
                 LogPagSeguro::error("PaymentService.Register(" . $paymentRequest->toString() . ") - error " . $e->getOneLineMessage());
                 throw $e;
                 break;
             default:
                 $e = new PagSeguroServiceException($httpStatus);
                 LogPagSeguro::error("PaymentService.Register(" . $paymentRequest->toString() . ") - error " . $e->getOneLineMessage());
                 throw $e;
                 break;
         }
         return isset($paymentUrl) ? $paymentUrl : false;
     } catch (PagSeguroServiceException $e) {
         throw $e;
     } catch (Exception $e) {
         LogPagSeguro::error("Exception: " . $e->getMessage());
         throw $e;
     }
 }