/** Returns a {@link Wallet.SendRequest} suitable for broadcasting to the network. */
public Wallet.SendRequest getSendRequest() {
Transaction tx = new Transaction(params);
for (Protos.Output output : paymentDetails.getOutputsList())
tx.addOutput(
new TransactionOutput(
params,
tx,
BigInteger.valueOf(output.getAmount()),
output.getScript().toByteArray()));
return Wallet.SendRequest.forTx(tx);
}
/**
* Create a payment message. This wraps up transaction data along with anything else useful for
* making a payment.
*
* @param transactions transactions to include with the payment message
* @param refundOutputs list of outputs to refund coins to, or null
* @param memo arbitrary, user readable memo, or null if none
* @param merchantData arbitrary merchant data, or null if none
* @return created payment message
*/
public static Protos.Payment createPaymentMessage(
List<Transaction> transactions,
@Nullable List<Protos.Output> refundOutputs,
@Nullable String memo,
@Nullable byte[] merchantData) {
Protos.Payment.Builder builder = Protos.Payment.newBuilder();
for (Transaction transaction : transactions) {
transaction.verify();
builder.addTransactions(ByteString.copyFrom(transaction.unsafeBitcoinSerialize()));
}
if (refundOutputs != null) {
for (Protos.Output output : refundOutputs) builder.addRefundTo(output);
}
if (memo != null) builder.setMemo(memo);
if (merchantData != null) builder.setMerchantData(ByteString.copyFrom(merchantData));
return builder.build();
}
/**
* 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.
*/
public @Nullable Protos.Payment getPayment(
List<Transaction> txns, @Nullable Address refundAddr, @Nullable String memo)
throws IOException {
if (!paymentDetails.hasPaymentUrl()) return null;
Protos.Payment.Builder payment = Protos.Payment.newBuilder();
if (paymentDetails.hasMerchantData()) payment.setMerchantData(paymentDetails.getMerchantData());
if (refundAddr != null) {
Protos.Output.Builder refundOutput = Protos.Output.newBuilder();
refundOutput.setAmount(totalValue.longValue());
refundOutput.setScript(
ByteString.copyFrom(ScriptBuilder.createOutputScript(refundAddr).getProgram()));
payment.addRefundTo(refundOutput);
}
if (memo != null) {
payment.setMemo(memo);
}
for (Transaction txn : txns) {
txn.verify();
ByteArrayOutputStream o = new ByteArrayOutputStream();
txn.bitcoinSerialize(o);
payment.addTransactions(ByteString.copyFrom(o.toByteArray()));
}
return payment.build();
}