public static function createPreApprovalRequest(PagSeguroCredentials $credentials, PagSeguroPaymentRequest $paymentRequest)
 {
     LogPagSeguro::info("PagSeguroPreApprovalService.createPreApprovalRequest(" . $paymentRequest->toString() . ") - begin");
     $connectionData = new PagSeguroConnectionData($credentials, self::SERVICE_NAME);
     $data = array_merge($connectionData->getCredentials()->getAttributesMap(), PagSeguroPreApprovalParser::getData($paymentRequest));
     // On preApproval, credentials goes with data, not in the url query string
     try {
         $connection = new PagSeguroHttpConnection();
         $connection->post(self::buildCheckoutRequestUrl($connectionData), $data, $connectionData->getServiceTimeout(), $connectionData->getCharset());
         $httpStatus = new PagSeguroHttpStatus($connection->getStatus());
         switch ($httpStatus->getType()) {
             case 'OK':
                 $PaymentParserData = PagSeguroPreApprovalParser::readSuccessXml($connection->getResponse());
                 $paymentReturn = array('code' => $PaymentParserData->getCode(), 'cancelUrl' => self::buildCancelUrl($connectionData, $PaymentParserData->getCode()), 'checkoutUrl' => self::buildCheckoutUrl($connectionData, $PaymentParserData->getCode()));
                 LogPagSeguro::info("PagSeguroPreApprovalService.createPreApprovalRequest(" . $paymentRequest->toString() . ") - end {1}" . $PaymentParserData->getCode());
                 break;
             case 'BAD_REQUEST':
                 $errors = PagSeguroPreApprovalParser::readErrors($connection->getResponse());
                 $e = new PagSeguroServiceException($httpStatus, $errors);
                 LogPagSeguro::error("PagSeguroPreApprovalService.createPreApprovalRequest(" . $paymentRequest->toString() . ") - error " . $e->getOneLineMessage());
                 throw $e;
                 break;
             default:
                 $e = new PagSeguroServiceException($httpStatus);
                 LogPagSeguro::error("PagSeguroPreApprovalService.createPreApprovalRequest(" . $paymentRequest->toString() . ") - error " . $e->getOneLineMessage());
                 throw $e;
                 break;
         }
         return isset($paymentReturn) ? $paymentReturn : false;
     } catch (PagSeguroServiceException $e) {
         throw $e;
     } catch (Exception $e) {
         LogPagSeguro::error("Exception: " . $e->getMessage());
         throw $e;
     }
 }
 /**
  * @param $connection
  * @param null $code
  * @return null|PagSeguroParserData
  * @throws PagSeguroServiceException
  */
 private function getResult($connection, $code = null)
 {
     $httpStatus = new PagSeguroHttpStatus($connection->getStatus());
     $response = $connection->getResponse();
     switch ($httpStatus->getType()) {
         case 'OK':
             switch (self::$service) {
                 case "PreApprovalRequest":
                     $response = PagSeguroPreApprovalParser::readSuccessXml($response);
                     $result = array('code' => $response->getCode(), 'cancelUrl' => self::buildPreApprovalCancelUrl(self::$connectionData, $response->getCode()), 'checkoutUrl' => self::buildPreApprovalRequestUrl(self::$connectionData, $response->getCode()));
                     break;
                 case "PreApprovalCancel":
                     $result = PagSeguroPreApprovalParser::readCancelXml($response);
                     break;
                 case "PreApprovalPaymentCharge":
                     $result = PagSeguroPreApprovalParser::readTransactionXml($response);
                     break;
             }
             //Logging
             if (is_null($code) && self::$service == "PreApprovalRequest") {
                 $log['text'] = sprintf("PagSeguroPreApprovalService.%s(" . $response->toString() . ") - end ", self::$service);
                 LogPagSeguro::info($log['text'] . ")");
             } else {
                 $log['text'] = sprintf("PagSeguroPreApprovalService.%s({$code}) - end ", self::$service);
                 LogPagSeguro::info($log['text']);
             }
             break;
         case 'BAD_REQUEST':
             $errors = PagSeguroServiceParser::readErrors($response);
             $errors = new PagSeguroServiceException($httpStatus, $errors);
             //Logging
             $log['text'] = sprintf("PagSeguroPreApprovalService.%s({$code}) - error ", self::$service);
             LogPagSeguro::error($log['text'] . $errors->getOneLineMessage());
             //Exception
             throw $errors;
             break;
         default:
             $errors = new PagSeguroServiceException($httpStatus);
             //Logging
             $log['text'] = sprintf("PagSeguroPreApprovalService.%s({$code}) - error ", self::$service);
             LogPagSeguro::error($log['text'] . $errors->getOneLineMessage());
             //Exception
             throw $errors;
             break;
     }
     return isset($result) ? $result : null;
 }