jota.model.Transaction Java Exaples

Source File: TangleEntity.java From qupla with Apache License 2.0

6 votes

private void onSubscribe(final TritVector address, final TritVector id)
{
  idMap.put(address, id);

  try
  {
    // we just got informed that this address is interesting to us
    final List<Transaction> transactions = iotaAPI.findTransactionObjectsByAddresses(new String[] { address.toTrytes() });
    if (transactions.size() != 0)
    {
      int breakPoint = 0;
    }
  }
  catch (ArgumentException e)
  {
    e.printStackTrace();
  }
}

Source File: TangleEntity.java From qupla with Apache License 2.0

6 votes

private void process(final String zmqMessage)
{
  Qupla.log(zmqMessage);

  try
  {
    final String[] messageFragments = zmqMessage.split(" ");
    String addressTrytes = messageFragments[1];
    String txHashTrytes = messageFragments[2];
    final List<Transaction> transactions = iotaAPI.findTransactionsObjectsByHashes(new String[] { txHashTrytes });
    if (transactions.size() < 2)
    {
      return;
    }

    processTransaction(addressTrytes, transactions);
  }
  catch (final ArgumentException e)
  {
    Qupla.log(zmqMessage);
    e.printStackTrace();
  }
}

Source File: TangleInterface.java From qupla with Apache License 2.0

6 votes

private List<Transaction> fetchOrderedBundleTransactions(String bundleHash)
{
  List<Transaction> orderedBundleTxs;
  try
  {
    String[] txHashes = iotaAPI.findTransactionsByBundles(bundleHash).getHashes();
    List<Transaction> unorderedBundleTxs = iotaAPI.findTransactionsObjectsByHashes(txHashes);
    orderedBundleTxs = orderTransactionsByIndex(unorderedBundleTxs);
  }
  catch (ArgumentException e)
  {
    e.printStackTrace();
    throw new RuntimeException(e);
  }
  return orderedBundleTxs;
}

Source File: TestnetCoordinator.java From private-iota-testnet with MIT License

6 votes

private static boolean isConfirming(IotaAPI api, String confirming, String confirmed) throws Exception {
	// getInclusionStates is broken for non-milestones, therefore approximate the result by a (depth-limited) breadth-first search.
	if (confirming.equals(confirmed))
		return true;
	Set<String> currentDepth = new HashSet<>();
	Set<String> seen = new HashSet<>();
	currentDepth.add(confirming);
	seen.add(confirming);
	for (int depth = 0; depth < 10; depth++) {
		Set<String> nextDepth = new HashSet<>();
		for (String hash : currentDepth) {
			if (hash.equals(confirmed))
				return true;
			if (hash.equals(NULL_HASH))
				continue;
			Transaction tx = new Transaction(api.getTrytes(hash).getTrytes()[0]);
			if (seen.add(tx.getTrunkTransaction()))
				nextDepth.add(tx.getTrunkTransaction());
			if (seen.add(tx.getBranchTransaction()))
				nextDepth.add(tx.getBranchTransaction());
		}
		currentDepth = nextDepth;
	}
	// not found, so we assume it is not
	return false;
}

Source File: TangleEntity.java From qupla with Apache License 2.0

5 votes

private void processTransaction(final String addressTrytes, final List<Transaction> transactions)
{
  final Transaction tx0 = transactions.get(0);
  final Transaction tx1 = transactions.get(1);

  final TritVector id = new TritVector(HASH_SIZE, TritVector.TRIT_ZERO);
  final TritVector map = TritVector.fromTrytes(tx0.getSignatureFragments());
  final TritVector signature = TritVector.fromTrytes(tx1.getSignatureFragments().substring(0, 81));
  final TritVector address = TritVector.fromTrytes(addressTrytes);
  final TritVector cmd = new TritVector(1, TritVector.TRIT_ZERO);
  final TritVector message = TritVector.concat(TritVector.concat(TritVector.concat(TritVector.concat(id, map), signature), address), cmd);
  golStore.affect(message, 0);
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

private static String accumulateTransactionMessages(List<Transaction> transactions)
{
  StringBuilder sb = new StringBuilder();
  for (Transaction transaction : transactions)
  {
    sb.append(transaction.getSignatureFragments().substring(0, SIGNATURE_FRAGMENTS_LENGTH));
  }
  return sb.toString();
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

private static List<Transaction> orderTransactionsByIndex(List<Transaction> unordered)
{
  Transaction[] ordered = new Transaction[unordered.size()];
  for (Transaction transaction : unordered)
  {
    ordered[(int) transaction.getCurrentIndex()] = transaction;
  }
  return Arrays.asList(ordered);
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

/**
 * @param address Address from which transactions shall be fetched.
 * @return Message of fetched transactions interpreted as ASCII.
 * @throws RuntimeException if argument is invalid.
 **/
public String[] fetchByAddress(String address)
{
  List<Transaction> transactions;
  try
  {
    transactions = iotaAPI.findTransactionObjectsByAddresses(new String[] { address });
  }
  catch (ArgumentException e)
  {
    e.printStackTrace();
    throw new RuntimeException(e);
  }
  return readAsciiTxMsg(transactions);
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

/**
 * @param hash Hash of transaction to fetch.
 * @return Message of fetched transaction interpreted as ASCII.
 * @throws RuntimeException if argument is invalid.
 **/
public String fetchByHash(String hash)
{
  Transaction transaction;
  try
  {
    transaction = iotaAPI.findTransactionsObjectsByHashes(new String[] { hash }).get(0);
  }
  catch (ArgumentException e)
  {
    e.printStackTrace();
    throw new RuntimeException(e);
  }
  return readAsciiTxMsg(transaction);
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

public String fetchMessageFromBundle(String bundleHash)
{
  List<Transaction> orderedBundleTxs = fetchOrderedBundleTransactions(bundleHash);
  String messagePacket = accumulateTransactionMessages(orderedBundleTxs);
  String header = messagePacket.substring(0, MESSAGE_PACKET_HEADER_LENGTH);
  int contentLength = Converter.value(Converter.trits(header));
  return messagePacket.substring(MESSAGE_PACKET_HEADER_LENGTH, MESSAGE_PACKET_HEADER_LENGTH + contentLength);
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

/**
 * Same as {@link #readAsciiTxMsg(Transaction)} but for multiple transactions.
 */
private String[] readAsciiTxMsg(List<Transaction> transactions)
{
  String[] extracted = new String[transactions.size()];
  for (int i = 0; i < extracted.length; i++)
  {
    extracted[i] = readAsciiTxMsg(transactions.get(i));
  }
  return extracted;
}

Source File: TangleInterface.java From qupla with Apache License 2.0

5 votes

/**
 * @param transaction Transaction whose message shall be converted to ASCII.
 * @return Transaction message decoded to ASCII.
 */
private String readAsciiTxMsg(Transaction transaction)
{
  String trytes = transaction.getSignatureFragments();
  String trimmedTrytes = unpadTrytes(trytes);
  return TrytesConverter.trytesToAscii(trimmedTrytes);
}

Source File: GetAccountDataResponse.java From guarda-android-wallets with GNU General Public License v3.0

4 votes

public GetAccountDataResponse(jota.dto.response.GetAccountDataResponse apiResponse) throws ArgumentException {

        attachedAddresses = apiResponse.getAddresses();
        Collections.reverse(attachedAddresses);

        Bundle[] transferBundle = apiResponse.getTransfers();

        if (transferBundle != null) {
            for (Bundle aTransferBundle : transferBundle) {

                totalValue = 0;

                for (Transaction trx : aTransferBundle.getTransactions()) {

                    address = trx.getAddress();
                    persistence = trx.getPersistence();
                    value = trx.getValue();

                    if (value != 0 && attachedAddresses.contains(Checksum.addChecksum(address)))
                        totalValue += value;

                    if (trx.getCurrentIndex() == 0) {
                        timestamp = trx.getAttachmentTimestamp() / 1000;
                        tag = trx.getTag();
                        destinationAddress = address;
                        hash = trx.getHash();
                    }

                    // check if sent transaction
                    if (attachedAddresses.contains(Checksum.addChecksum(address))) {
                        boolean isRemainder = (trx.getCurrentIndex() == trx.getLastIndex()) && trx.getLastIndex() != 0;
                        if (value < 0 && !isRemainder) {

                            if (addresses.contains(new Address(Checksum.addChecksum(address), false)))
                                addresses.remove(new Address(Checksum.addChecksum(address), false));

                            if (!addresses.contains(new Address(Checksum.addChecksum(address), true)))
                                addresses.add(new Address(Checksum.addChecksum(address), true));
                        } else {
                            if (!addresses.contains(new Address(Checksum.addChecksum(address), true)) &&
                                    !addresses.contains(new Address(Checksum.addChecksum(address), false)))
                                addresses.add(new Address(Checksum.addChecksum(address), false));
                        }
                    }
                }

                transfers.add(new Transfer(timestamp, destinationAddress, hash, persistence, totalValue, message, tag));

            }

            // sort the addresses
            final Map<String, Integer> map = new HashMap<>();
            for (int i = 0; i < attachedAddresses.toArray().length; ++i)
                map.put(attachedAddresses.get(i), i);
            Collections.sort(addresses, new Comparator<Address>() {
                @Override
                public int compare(Address add1, Address add2) {
                    return map.get(add1.getAddress()) - map.get(add2.getAddress());
                }
            });

            Collections.sort(transfers);

            //Don't know why, but in ver. 1.5.5 correct balance = value, before it was apiResponse.getBalance()
            setBalance(value);
            setDuration(apiResponse.getDuration());
        }
    }

Source File: GetAccountDataResponse.java From android-wallet-app with GNU General Public License v3.0

4 votes

public GetAccountDataResponse(jota.dto.response.GetAccountDataResponse apiResponse) throws ArgumentException {

        attachedAddresses = apiResponse.getAddresses();
        Collections.reverse(attachedAddresses);

        Bundle[] transferBundle = apiResponse.getTransfers();

        if (transferBundle != null) {
            for (Bundle aTransferBundle : transferBundle) {

                totalValue = 0;

                for (Transaction trx : aTransferBundle.getTransactions()) {

                    address = trx.getAddress();
                    persistence = trx.getPersistence();
                    value = trx.getValue();

                    if (value != 0 && attachedAddresses.contains(Checksum.addChecksum(address)))
                        totalValue += value;

                    if (trx.getCurrentIndex() == 0) {
                        timestamp = trx.getAttachmentTimestamp() / 1000;
                        tag = trx.getTag();
                        destinationAddress = address;
                        hash = trx.getHash();
                    }

                    // check if sent transaction
                    if (attachedAddresses.contains(Checksum.addChecksum(address))) {
                        boolean isRemainder = (trx.getCurrentIndex() == trx.getLastIndex()) && trx.getLastIndex() != 0;
                        if (value < 0 && !isRemainder) {

                            if (addresses.contains(new Address(Checksum.addChecksum(address), false)))
                                addresses.remove(new Address(Checksum.addChecksum(address), false));

                            if (!addresses.contains(new Address(Checksum.addChecksum(address), true)))
                                addresses.add(new Address(Checksum.addChecksum(address), true));
                        } else {
                            if (!addresses.contains(new Address(Checksum.addChecksum(address), true)) &&
                                    !addresses.contains(new Address(Checksum.addChecksum(address), false)))
                                addresses.add(new Address(Checksum.addChecksum(address), false));
                        }
                    }
                }

                transfers.add(new Transfer(timestamp, destinationAddress, hash, persistence, totalValue, message, tag));

            }

            // sort the addresses
            final Map<String, Integer> map = new HashMap<>();
            for (int i = 0; i < attachedAddresses.toArray().length; ++i)
                map.put(attachedAddresses.get(i), i);
            Collections.sort(addresses, new Comparator<Address>() {
                @Override
                public int compare(Address add1, Address add2) {
                    return map.get(add1.getAddress()) - map.get(add2.getAddress());
                }
            });

            Collections.sort(transfers);

            setBalance(apiResponse.getBalance());
            setDuration(apiResponse.getDuration());
        }
    }

jota.model.Transaction Java Examples