Java Code Examples for org.bitcoinj.core.TransactionOutput#getValue()

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coindays" spent.
    // TODO: Consider changing the wallets internal format to track just outputs and keep them ordered.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // When calculating the wallet balance, we may be asked to select all possible coins, if so, avoid sorting
    // them in order to improve performance.
    // TODO: Take in network parameters when instanatiated, and then test against the current network. Or just have a boolean parameter for "give me everything"
    if (!target.equals(NetworkParameters.MAX_MONEY)) {
        sortOutputs(sortedOutputs);
    }
    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    for (TransactionOutput output : sortedOutputs) {
        if (total >= target.value) break;
        // Only pick chain-included transactions, or transactions that are ours and pending.
        if (!shouldSelect(output.getParentTransaction())) continue;
        selected.add(output);
        total += output.getValue().value;
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coindays" spent.
    // TODO: Consider changing the wallets internal format to track just outputs and keep them ordered.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // When calculating the wallet balance, we may be asked to select all possible coins, if so, avoid sorting
    // them in order to improve performance.
    // TODO: Take in network parameters when instanatiated, and then test against the current network. Or just have a boolean parameter for "give me everything"
    if (!target.equals(NetworkParameters.MAX_MONEY)) {
        sortOutputs(sortedOutputs);
    }
    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    for (TransactionOutput output : sortedOutputs) {
        if (total >= target.value) break;
        // Only pick chain-included transactions, or transactions that are ours and pending.
        if (!shouldSelect(output.getParentTransaction())) continue;
        selected.add(output);
        total += output.getValue().value;
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

public static UnconfirmedTxOutput fromTransactionOutput(TransactionOutput transactionOutput) {
    Transaction parentTransaction = transactionOutput.getParentTransaction();
    if (parentTransaction != null) {
        return new UnconfirmedTxOutput(transactionOutput.getIndex(),
                transactionOutput.getValue().value,
                parentTransaction.getHashAsString());
    } else {
        log.warn("parentTransaction of transactionOutput is null. " +
                        "This must not happen. " +
                        "We could throw an exception as well " +
                        "here but we prefer to be for now more tolerant and just " +
                        "assign the value 0 if that would be the case. transactionOutput={}",
                transactionOutput);
        return new UnconfirmedTxOutput(transactionOutput.getIndex(),
                0,
                "null");
    }
}
 

public Transaction signTx(Transaction tx) throws WalletException, TransactionVerificationException {
    for (int i = 0; i < tx.getInputs().size(); i++) {
        TransactionInput txIn = tx.getInputs().get(i);
        TransactionOutput connectedOutput = txIn.getConnectedOutput();
        if (connectedOutput != null && connectedOutput.isMine(wallet)) {
            signTransactionInput(wallet, aesKey, tx, txIn, i);
            checkScriptSig(tx, txIn, i);
        }
    }

    for (TransactionOutput txo : tx.getOutputs()) {
        Coin value = txo.getValue();
        // OpReturn outputs have value 0
        if (value.isPositive()) {
            checkArgument(Restrictions.isAboveDust(txo.getValue()),
                    "An output value is below dust limit. Transaction=" + tx);
        }
    }

    checkWalletConsistency(wallet);
    verifyTransaction(tx);
    printTx("BSQ wallet: Signed Tx", tx);
    return tx;
}
 

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coindays" spent.
    // TODO: Consider changing the wallets internal format to track just outputs and keep them ordered.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // When calculating the wallet balance, we may be asked to select all possible coins, if so, avoid sorting
    // them in order to improve performance.
    // TODO: Take in network parameters when instanatiated, and then test against the current network. Or just have a boolean parameter for "give me everything"
    if (!target.equals(NetworkParameters.MAX_MONEY)) {
        sortOutputs(sortedOutputs);
    }
    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    for (TransactionOutput output : sortedOutputs) {
        if (total >= target.value)
            break;
        // Only pick chain-included transactions, or transactions that are ours and pending.
        if (!shouldSelect(output.getParentTransaction()))
            continue;
        selected.add(output);
        total += output.getValue().value;
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coindays" spent.
    // TODO: Consider changing the wallets internal format to track just outputs and keep them ordered.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // When calculating the wallet balance, we may be asked to select all possible coins, if so, avoid sorting
    // them in order to improve performance.
    // TODO: Take in network parameters when instanatiated, and then test against the current network. Or just have a boolean parameter for "give me everything"
    if (!target.equals(NetworkParameters.MAX_MONEY)) {
        sortOutputs(sortedOutputs);
    }
    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    for (TransactionOutput output : sortedOutputs) {
        if (total >= target.value)
            break;
        // Only pick chain-included transactions, or transactions that are ours and pending.
        if (!shouldSelect(output.getParentTransaction()))
            continue;
        selected.add(output);
        total += output.getValue().value;
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coin days" spent.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // If we spend all we don't need to sort
    if (!target.equals(NetworkParameters.MAX_MONEY))
        sortOutputs(sortedOutputs);

    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    long targetValue = target.value;
    for (TransactionOutput output : sortedOutputs) {
        if (total >= targetValue) {
            long change = total - targetValue;
            if (change == 0 || change >= Restrictions.getMinNonDustOutput().value)
                break;
        }

        if (output.getParentTransaction() != null &&
                isTxSpendable(output.getParentTransaction()) &&
                isTxOutputSpendable(output)) {
            selected.add(output);
            total += output.getValue().value;
        }
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

@Override
public Coin getValueSentToMeForTransaction(Transaction transaction) throws ScriptException {
    Coin result = Coin.ZERO;
    final String txId = transaction.getHashAsString();
    // We check if we have a matching BSQ tx. We do that call here to avoid repeated calls in the loop.
    Optional<Tx> txOptional = bsqStateService.getTx(txId);
    // We check all the outputs of our tx
    for (int i = 0; i < transaction.getOutputs().size(); i++) {
        TransactionOutput output = transaction.getOutputs().get(i);
        final boolean isConfirmed = output.getParentTransaction() != null &&
                output.getParentTransaction().getConfidence().getConfidenceType() == TransactionConfidence.ConfidenceType.BUILDING;
        if (output.isMineOrWatched(wallet)) {
            if (isConfirmed) {
                if (txOptional.isPresent()) {
                    // The index of the BSQ tx outputs are the same like the bitcoinj tx outputs
                    TxOutput txOutput = txOptional.get().getTxOutputs().get(i);
                    if (bsqStateService.isBsqTxOutputType(txOutput)) {
                        //TODO check why values are not the same
                        if (txOutput.getValue() != output.getValue().value) {
                            log.warn("getValueSentToMeForTransaction: Value of BSQ output do not match BitcoinJ tx output. " +
                                            "txOutput.getValue()={}, output.getValue().value={}, txId={}",
                                    txOutput.getValue(), output.getValue().value, txId);
                        }

                        // If it is a valid BSQ output we add it
                        result = result.add(Coin.valueOf(txOutput.getValue()));
                    }
                }
            } /*else {
                // TODO atm we don't display amounts of unconfirmed txs but that might change so we leave that code
                // if it will be required
                // If the tx is not confirmed yet we add the value and assume it is a valid BSQ output.
                result = result.add(output.getValue());
            }*/
        }
    }
    return result;
}
 

@Override
public CoinSelection select(Coin target, List<TransactionOutput> candidates) {
    ArrayList<TransactionOutput> selected = new ArrayList<>();
    // Sort the inputs by age*value so we get the highest "coin days" spent.
    ArrayList<TransactionOutput> sortedOutputs = new ArrayList<>(candidates);
    // If we spend all we don't need to sort
    if (!target.equals(NetworkParameters.MAX_MONEY))
        sortOutputs(sortedOutputs);

    // Now iterate over the sorted outputs until we have got as close to the target as possible or a little
    // bit over (excessive value will be change).
    long total = 0;
    long targetValue = target.value;
    for (TransactionOutput output : sortedOutputs) {
        if (!isDustAttackUtxo(output)) {
            if (total >= targetValue) {
                long change = total - targetValue;
                if (change == 0 || change >= Restrictions.getMinNonDustOutput().value)
                    break;
            }

            if (output.getParentTransaction() != null &&
                    isTxSpendable(output.getParentTransaction()) &&
                    isTxOutputSpendable(output)) {
                selected.add(output);
                total += output.getValue().value;
            }
        }
    }
    // Total may be lower than target here, if the given candidates were insufficient to create to requested
    // transaction.
    return new CoinSelection(Coin.valueOf(total), selected);
}
 

@Override
public Coin getValueSentToMeForTransaction(Transaction transaction) throws ScriptException {
    Coin result = Coin.ZERO;
    final String txId = transaction.getHashAsString();
    // We check if we have a matching BSQ tx. We do that call here to avoid repeated calls in the loop.
    Optional<Tx> txOptional = daoStateService.getTx(txId);
    // We check all the outputs of our tx
    for (int i = 0; i < transaction.getOutputs().size(); i++) {
        TransactionOutput output = transaction.getOutputs().get(i);
        final boolean isConfirmed = output.getParentTransaction() != null &&
                output.getParentTransaction().getConfidence().getConfidenceType() == TransactionConfidence.ConfidenceType.BUILDING;
        if (output.isMineOrWatched(wallet)) {
            if (isConfirmed) {
                if (txOptional.isPresent()) {
                    // The index of the BSQ tx outputs are the same like the bitcoinj tx outputs
                    TxOutput txOutput = txOptional.get().getTxOutputs().get(i);
                    if (daoStateService.isBsqTxOutputType(txOutput)) {
                        //TODO check why values are not the same
                        if (txOutput.getValue() != output.getValue().value) {
                            log.warn("getValueSentToMeForTransaction: Value of BSQ output do not match BitcoinJ tx output. " +
                                            "txOutput.getValue()={}, output.getValue().value={}, txId={}",
                                    txOutput.getValue(), output.getValue().value, txId);
                        }

                        // If it is a valid BSQ output we add it
                        result = result.add(Coin.valueOf(txOutput.getValue()));
                    }
                }
            } /*else {
                // TODO atm we don't display amounts of unconfirmed txs but that might change so we leave that code
                // if it will be required
                // If the tx is not confirmed yet we add the value and assume it is a valid BSQ output.
                result = result.add(output.getValue());
            }*/
        }
    }
    return result;
}
 

@Override
public Coin getValueSentFromMeForTransaction(Transaction transaction) throws ScriptException {
    Coin result = Coin.ZERO;
    // We check all our inputs and get the connected outputs.
    for (int i = 0; i < transaction.getInputs().size(); i++) {
        TransactionInput input = transaction.getInputs().get(i);
        // We grab the connected output for that input
        TransactionOutput connectedOutput = input.getConnectedOutput();
        if (connectedOutput != null) {
            // We grab the parent tx of the connected output
            final Transaction parentTransaction = connectedOutput.getParentTransaction();
            final boolean isConfirmed = parentTransaction != null &&
                    parentTransaction.getConfidence().getConfidenceType() == TransactionConfidence.ConfidenceType.BUILDING;
            if (connectedOutput.isMineOrWatched(wallet)) {
                if (isConfirmed) {
                    // We lookup if we have a BSQ tx matching the parent tx
                    // We cannot make that findTx call outside of the loop as the parent tx can change at each iteration
                    Optional<Tx> txOptional = bsqStateService.getTx(parentTransaction.getHash().toString());
                    if (txOptional.isPresent()) {
                        TxOutput txOutput = txOptional.get().getTxOutputs().get(connectedOutput.getIndex());
                        if (bsqStateService.isBsqTxOutputType(txOutput)) {
                            //TODO check why values are not the same
                            if (txOutput.getValue() != connectedOutput.getValue().value)
                                log.warn("getValueSentToMeForTransaction: Value of BSQ output do not match BitcoinJ tx output. " +
                                                "txOutput.getValue()={}, output.getValue().value={}, txId={}",
                                        txOutput.getValue(), connectedOutput.getValue().value, txOptional.get().getId());

                            // If it is a valid BSQ output we add it
                            result = result.add(Coin.valueOf(txOutput.getValue()));
                        }
                    }
                } /*else {
                    // TODO atm we don't display amounts of unconfirmed txs but that might change so we leave that code
                    // if it will be required
                    // If the tx is not confirmed yet we add the value and assume it is a valid BSQ output.
                    result = result.add(connectedOutput.getValue());
                }*/
            }
        }
    }
    return result;
}
 

static Coin verify(final GaService service,
                   final Map<TransactionOutPoint, Coin> countedUtxoValues, final PreparedTransaction ptx,
                   final Address recipient, final Coin amount, final List<Boolean> input) {
    final int changeIdx;
    if (input == null)
        changeIdx = -1;
    else if (input.get(0))
        changeIdx = 0;
    else if (input.get(1))
        changeIdx = 1;
    else
        throw new IllegalArgumentException("Verification: Change output missing.");

    if (input != null && input.get(0) && input.get(1)) {
        // Shouldn't happen really. In theory user can send money to a new change address
        // of themselves which they've generated manually, but it's unlikely, so for
        // simplicity we don't handle it.
        throw new IllegalArgumentException("Verification: Cannot send to a change address.");
    }
    final TransactionOutput output = ptx.mDecoded.getOutputs().get(1 - Math.abs(changeIdx));
    if (recipient != null) {
        final Address gotAddress = output.getScriptPubKey().getToAddress(service.getNetworkParameters());
        if (!gotAddress.equals(recipient))
            throw new IllegalArgumentException("Verification: Invalid recipient address.");
    }
    if (amount != null && !output.getValue().equals(amount))
        throw new IllegalArgumentException("Verification: Invalid output amount.");

    // 3. Verify fee value
    Coin fee = Coin.ZERO;
    for (final TransactionInput in : ptx.mDecoded.getInputs()) {
        if (countedUtxoValues.get(in.getOutpoint()) != null) {
            fee = fee.add(countedUtxoValues.get(in.getOutpoint()));
            continue;
        }

        final Transaction prevTx = ptx.mPrevoutRawTxs.get(in.getOutpoint().getHash().toString());
        if (!prevTx.getHash().equals(in.getOutpoint().getHash()))
            throw new IllegalArgumentException("Verification: Prev tx hash invalid");
        fee = fee.add(prevTx.getOutput((int) in.getOutpoint().getIndex()).getValue());
    }
    for (final TransactionOutput out : ptx.mDecoded.getOutputs())
        fee = fee.subtract(out.getValue());

    final double messageSize = ptx.mDecoded.getMessageSize();
    final double satoshiPerByte = fee.value / messageSize;
    final double satoshiPerKiloByte = satoshiPerByte * 1000.0;
    final Coin feeRate = Coin.valueOf((int) satoshiPerKiloByte);

    final Coin minFeeRate = service.getMinFeeRate();
    if (feeRate.isLessThan(minFeeRate) && service.getNetworkParameters() != RegTestParams.get())
        feeError("small", feeRate, minFeeRate);

    final Coin maxFeeRate = Coin.valueOf(15000 * 1000); // FIXME: Get max fee rate from server
    if (feeRate.isGreaterThan(maxFeeRate))
        feeError("large", feeRate, maxFeeRate);

    return amount == null ? output.getValue() : fee;
}
 

@Override
protected boolean isDustAttackUtxo(TransactionOutput output) {
    return output.getValue().value < ignoreDustThreshold;
}
 

@Override
public Coin getValueSentFromMeForTransaction(Transaction transaction) throws ScriptException {
    Coin result = Coin.ZERO;
    // We check all our inputs and get the connected outputs.
    for (int i = 0; i < transaction.getInputs().size(); i++) {
        TransactionInput input = transaction.getInputs().get(i);
        // We grab the connected output for that input
        TransactionOutput connectedOutput = input.getConnectedOutput();
        if (connectedOutput != null) {
            // We grab the parent tx of the connected output
            final Transaction parentTransaction = connectedOutput.getParentTransaction();
            final boolean isConfirmed = parentTransaction != null &&
                    parentTransaction.getConfidence().getConfidenceType() == TransactionConfidence.ConfidenceType.BUILDING;
            if (connectedOutput.isMineOrWatched(wallet)) {
                if (isConfirmed) {
                    // We lookup if we have a BSQ tx matching the parent tx
                    // We cannot make that findTx call outside of the loop as the parent tx can change at each iteration
                    Optional<Tx> txOptional = daoStateService.getTx(parentTransaction.getHash().toString());
                    if (txOptional.isPresent()) {
                        TxOutput txOutput = txOptional.get().getTxOutputs().get(connectedOutput.getIndex());
                        if (daoStateService.isBsqTxOutputType(txOutput)) {
                            //TODO check why values are not the same
                            if (txOutput.getValue() != connectedOutput.getValue().value)
                                log.warn("getValueSentToMeForTransaction: Value of BSQ output do not match BitcoinJ tx output. " +
                                                "txOutput.getValue()={}, output.getValue().value={}, txId={}",
                                        txOutput.getValue(), connectedOutput.getValue().value, txOptional.get().getId());

                            // If it is a valid BSQ output we add it
                            result = result.add(Coin.valueOf(txOutput.getValue()));
                        }
                    }
                } /*else {
                    // TODO atm we don't display amounts of unconfirmed txs but that might change so we leave that code
                    // if it will be required
                    // If the tx is not confirmed yet we add the value and assume it is a valid BSQ output.
                    result = result.add(connectedOutput.getValue());
                }*/
            }
        }
    }
    return result;
}
 

@Override
protected boolean isDustAttackUtxo(TransactionOutput output) {
    return output.getValue().value < preferences.getIgnoreDustThreshold();
}