/**
  * Constructor.
  * 
  * @param Rublon $rublon
  * @param string $url
  * @param array $params
  */
 public function __construct(RublonConsumer $rublon, $params)
 {
     parent::__construct($rublon);
     if (!$rublon->isConfigured()) {
         trigger_error(RublonConsumer::TEMPLATE_CONFIG_ERROR, E_USER_ERROR);
     }
     $consumerRegistrationData = RublonHelper::getConsumerRegistrationData();
     $url = $consumerRegistrationData['url'] . $consumerRegistrationData['action'] . $this->urlPath;
     // Set request URL and parameters
     $this->setRequestURL($url)->setRequestParams($params);
 }