/**
  * 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;
   }
 }
示例#2
0
  /**
   * 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;
  }