/**
* Generates a Payment message based on the information in the PaymentRequest. Provide
* transactions built by the wallet. If the PaymentRequest did not specify a payment_url, returns
* null.
*
* @param txns list of transactions to be included with the Payment message.
* @param refundAddr will be used by the merchant to send money back if there was a problem.
* @param memo is a message to include in the payment message sent to the merchant.
*/
@Nullable
public Protos.Payment getPayment(
List<Transaction> txns, @Nullable Address refundAddr, @Nullable String memo)
throws IOException, PaymentProtocolException.InvalidNetwork {
if (paymentDetails.hasPaymentUrl()) {
for (Transaction tx : txns)
if (!tx.getParams().equals(params))
throw new PaymentProtocolException.InvalidNetwork(params.getPaymentProtocolId());
return PaymentProtocol.createPaymentMessage(
txns, totalValue, refundAddr, memo, getMerchantData());
} else {
return null;
}
}
