public function cancel(Customweb_Payment_Authorization_ITransaction $transaction)
{
if (!$transaction instanceof Customweb_Saferpay_Authorization_Transaction) {
throw new Exception("The given transaction is not instanceof Customweb_Saferpay_Authorization_Transaction.");
}
$transaction->cancelDry();
$builder = new Customweb_Saferpay_BackendOperation_Adapter_Cancel_ParameterBuilder($transaction, $this->getConfiguration(), $this->container);
$parameters = $builder->buildParameters();
$this->performPayCompleteAction($parameters, Customweb_I18n_Translation::__('Transaction could not be canceled.'));
$transaction->cancel();
}
