Examples with Na io.nuls.kernel.model.Na used on opensource projects

Example 1 with Na

use of io.nuls.kernel.model.Na in project nuls by nuls-io.

the class CoinDataTool method getCoinData.

public static CoinDataResult getCoinData(byte[] address, Na amount, int size, Na price, List<Coin> coinList) {
    if (null == price) {
        throw new NulsRuntimeException(KernelErrorCode.PARAMETER_ERROR);
    }
    CoinDataResult coinDataResult = new CoinDataResult();
    coinDataResult.setEnough(false);
    if (coinList.isEmpty()) {
        return coinDataResult;
    }
    List<Coin> coins = new ArrayList<>();
    Na values = Na.ZERO;
    // 累加到足够支付转出额与手续费
    for (int i = 0; i < coinList.size(); i++) {
        Coin coin = coinList.get(i);
        coins.add(coin);
        size += coin.size();
        if (i == 127) {
            size += 1;
        }
        // 每次累加一条未花费余额时，需要重新计算手续费
        Na fee = TransactionFeeCalculator.getFee(size, price);
        values = values.add(coin.getNa());
        /**
         * 判断是否是脚本验证UTXO
         */
        int signType = coinDataResult.getSignType();
        if (signType != 3) {
            if ((signType & 0x01) == 0 && coin.getTempOwner().length == 23) {
                coinDataResult.setSignType((byte) (signType | 0x01));
                size += P2PHKSignature.SERIALIZE_LENGTH;
            } else if ((signType & 0x02) == 0 && coin.getTempOwner().length != 23) {
                coinDataResult.setSignType((byte) (signType | 0x02));
                size += P2PHKSignature.SERIALIZE_LENGTH;
            }
        }
        // 需要判断是否找零，如果有找零，则需要重新计算手续费
        if (values.isGreaterThan(amount.add(fee))) {
            Na change = values.subtract(amount.add(fee));
            Coin changeCoin = new Coin();
            if (address[2] == NulsContext.P2SH_ADDRESS_TYPE) {
                changeCoin.setOwner(SignatureUtil.createOutputScript(address).getProgram());
            } else {
                changeCoin.setOwner(address);
            }
            changeCoin.setNa(change);
            fee = TransactionFeeCalculator.getFee(size + changeCoin.size(), price);
            if (values.isLessThan(amount.add(fee))) {
                continue;
            }
            changeCoin.setNa(values.subtract(amount.add(fee)));
            if (!changeCoin.getNa().equals(Na.ZERO)) {
                coinDataResult.setChange(changeCoin);
            }
        }
        coinDataResult.setFee(fee);
        if (values.isGreaterOrEquals(amount.add(fee))) {
            coinDataResult.setEnough(true);
            coinDataResult.setCoinList(coins);
            break;
        }
    }
    return coinDataResult;
}

Example 2 with Na

use of io.nuls.kernel.model.Na in project nuls by nuls-io.

the class CallContractTxValidator method validate.

@Override
public ValidateResult validate(CallContractTransaction tx) throws NulsException {
    CallContractData txData = tx.getTxData();
    Na transferNa = Na.valueOf(txData.getValue());
    byte[] contractAddress = txData.getContractAddress();
    byte[] sender = txData.getSender();
    Set<String> addressSet = SignatureUtil.getAddressFromTX(tx);
    if (!ContractLedgerUtil.isExistContractAddress(contractAddress)) {
        Log.error("contract call error: The contract does not exist.");
        return ValidateResult.getFailedResult(this.getClass().getSimpleName(), ContractErrorCode.CONTRACT_ADDRESS_NOT_EXIST);
    }
    if (!addressSet.contains(AddressTool.getStringAddressByBytes(sender))) {
        Log.error("contract call error: The contract caller is not the transaction creator.");
        return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.TX_DATA_VALIDATION_ERROR);
    }
    Na contractReceivedNa = Na.ZERO;
    for (Coin coin : tx.getCoinData().getTo()) {
        byte[] owner = coin.getOwner();
        if (owner.length > 23) {
            owner = coin.getAddress();
        }
        // Keep the change maybe a very small coin
        if (addressSet.contains(AddressTool.getStringAddressByBytes(owner))) {
            // When the receiver sign this tx,Allow it transfer small coin
            continue;
        }
        if (coin.getLockTime() != 0) {
            Log.error("contract call error: The amount of the transfer cannot be locked(UTXO status error).");
            return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.UTXO_STATUS_CHANGE);
        }
        if (!ArraysTool.arrayEquals(owner, contractAddress)) {
            Log.error("contract call error: The receiver is not the contract address.");
            return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.TX_DATA_VALIDATION_ERROR);
        } else {
            contractReceivedNa = contractReceivedNa.add(coin.getNa());
        }
        if (coin.getNa().isLessThan(ProtocolConstant.MININUM_TRANSFER_AMOUNT)) {
            Log.error("contract call error: The amount of the transfer is too small.");
            return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.TOO_SMALL_AMOUNT);
        }
    }
    if (contractReceivedNa.isLessThan(transferNa)) {
        Log.error("contract call error: Insufficient amount to transfer to the contract address.");
        return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.INVALID_AMOUNT);
    }
    Na realFee = tx.getCoinData().getFee();
    Na fee = TransactionFeeCalculator.getTransferFee(tx.size()).add(Na.valueOf(LongUtils.mul(txData.getGasLimit(), txData.getPrice())));
    if (realFee.isGreaterOrEquals(fee)) {
        return ValidateResult.getSuccessResult();
    } else {
        Log.error("contract call error: The contract transaction fee is not right.");
        return ValidateResult.getFailedResult(this.getClass().getName(), TransactionErrorCode.FEE_NOT_RIGHT);
    }
}

Example 3 with Na

use of io.nuls.kernel.model.Na in project nuls by nuls-io.

the class CreateContractTxValidator method validate.

@Override
public ValidateResult validate(CreateContractTransaction tx) throws NulsException {
    CreateContractData txData = tx.getTxData();
    byte[] sender = txData.getSender();
    byte[] contractAddress = txData.getContractAddress();
    if (!ContractUtil.isLegalContractAddress(contractAddress)) {
        Log.error("contract create error: Illegal contract address.");
        return ValidateResult.getFailedResult(this.getClass().getSimpleName(), ContractErrorCode.ILLEGAL_CONTRACT_ADDRESS);
    }
    Set<String> addressSet = SignatureUtil.getAddressFromTX(tx);
    if (!addressSet.contains(AddressTool.getStringAddressByBytes(sender))) {
        Log.error("contract create error: The contract creater is not the transaction creator.");
        return ValidateResult.getFailedResult(this.getClass().getSimpleName(), TransactionErrorCode.TX_DATA_VALIDATION_ERROR);
    }
    Na realFee = tx.getCoinData().getFee();
    Na fee = TransactionFeeCalculator.getTransferFee(tx.size()).add(Na.valueOf(LongUtils.mul(txData.getGasLimit(), txData.getPrice())));
    if (realFee.isGreaterOrEquals(fee)) {
        return ValidateResult.getSuccessResult();
    } else {
        Log.error("contract create error: The contract transaction fee is not right.");
        return ValidateResult.getFailedResult(this.getClass().getName(), TransactionErrorCode.FEE_NOT_RIGHT);
    }
}

Example 4 with Na

use of io.nuls.kernel.model.Na in project nuls by nuls-io.

the class ContractBalance method minusTempUsable.

public void minusTempUsable(Na amount) {
    Na realUsable = this.getRealUsable();
    Na tempUsable = realUsable.minus(amount);
    this.usableConsensusReward = Na.ZERO;
    this.consensusRewardCoins.clear();
    this.usable = tempUsable;
}

Example 5 with Na

use of io.nuls.kernel.model.Na in project nuls by nuls-io.

the class CallContractProcessor method getContractCall.

private ContractCall getContractCall(String[] args) {
    ContractCall call = null;
    try {
        call = new ContractCall();
        call.setSender(args[1].trim());
        call.setGasLimit(Long.valueOf(args[2].trim()));
        call.setPrice(Long.valueOf(args[3].trim()));
        call.setContractAddress(args[4].trim());
        call.setMethodName(args[5].trim());
        long naValue = 0L;
        Na na = Na.parseNuls(args[6].trim());
        if (na != null) {
            naValue = na.getValue();
        }
        call.setValue(naValue);
        if (args.length == 9) {
            String argType = args[7].trim();
            if (argType.equals("-d")) {
                call.setMethodDesc(args[8].trim());
            } else if (argType.equals("-r")) {
                call.setRemark(args[8].trim());
            } else {
                return null;
            }
        } else if (args.length == 11) {
            String argType0 = args[7].trim();
            String argType1 = args[9].trim();
            boolean isType0D = argType0.equals("-d");
            boolean isType1D = argType1.equals("-d");
            boolean isType0R = argType0.equals("-r");
            boolean isType1R = argType1.equals("-r");
            if ((isType0D && isType1D) || (isType0R && isType1R)) {
                // 不能同时为-d或-r
                return null;
            }
            if (isType0D) {
                call.setMethodDesc(args[8].trim());
            }
            if (isType0R) {
                call.setRemark(args[8].trim());
            }
            if (isType1D) {
                call.setMethodDesc(args[10].trim());
            }
            if (isType1R) {
                call.setRemark(args[10].trim());
            }
        }
        return call;
    } catch (Exception e) {
        e.fillInStackTrace();
        return null;
    }
}