/**
* Create a payment request. You may want to sign the request using {@link #signPaymentRequest}.
* Use {@link Protos.PaymentRequest.Builder#build} to get the actual payment request.
*
* @param params network parameters
* @param outputs list of outputs to request coins to
* @param memo arbitrary, user readable memo, or null if none
* @param paymentUrl URL to send payment message to, or null if none
* @param merchantData arbitrary merchant data, or null if none
* @return created payment request, in its builder form
*/
public static Protos.PaymentRequest.Builder createPaymentRequest(
NetworkParameters params,
List<Protos.Output> outputs,
@Nullable String memo,
@Nullable String paymentUrl,
@Nullable byte[] merchantData) {
final Protos.PaymentDetails.Builder paymentDetails = Protos.PaymentDetails.newBuilder();
paymentDetails.setNetwork(params.getPaymentProtocolId());
for (Protos.Output output : outputs) paymentDetails.addOutputs(output);
if (memo != null) paymentDetails.setMemo(memo);
if (paymentUrl != null) paymentDetails.setPaymentUrl(paymentUrl);
if (merchantData != null) paymentDetails.setMerchantData(ByteString.copyFrom(merchantData));
paymentDetails.setTime(Utils.currentTimeSeconds());
final Protos.PaymentRequest.Builder paymentRequest = Protos.PaymentRequest.newBuilder();
paymentRequest.setSerializedPaymentDetails(paymentDetails.build().toByteString());
return paymentRequest;
}
