Examples with NulsException io.nuls.kernel.exception.NulsException used on opensource projects

Example 6 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class AccountLedgerResource method getLockUtxo.

@GET
@Path("/utxo/lock/{address}")
@Produces(MediaType.APPLICATION_JSON)
@ApiOperation(value = "查询用户冻结列表", notes = "result.data: balanceJson 返回账户相关的冻结UTXO列表")
@ApiResponses(value = { @ApiResponse(code = 200, message = "success", response = Page.class) })
public RpcClientResult getLockUtxo(@ApiParam(name = "address", value = "地址") @PathParam("address") String address, @ApiParam(name = "pageNumber", value = "页码") @QueryParam("pageNumber") Integer pageNumber, @ApiParam(name = "pageSize", value = "每页条数") @QueryParam("pageSize") Integer pageSize) {
    if (null == pageNumber || pageNumber == 0) {
        pageNumber = 1;
    }
    if (null == pageSize || pageSize == 0) {
        pageSize = 10;
    }
    if (pageNumber < 0 || pageSize < 0 || pageSize > 100) {
        return Result.getFailed(KernelErrorCode.PARAMETER_ERROR).toRpcClientResult();
    }
    byte[] addressBytes = null;
    Result dtoResult = new Result<>();
    try {
        addressBytes = AddressTool.getAddress(address);
    } catch (Exception e) {
        return Result.getFailed(AccountErrorCode.ADDRESS_ERROR).toRpcClientResult();
    }
    // 获取所有锁定的utxo
    Result<List<Coin>> result = accountLedgerService.getLockedUtxo(addressBytes);
    if (result.isFailed()) {
        dtoResult.setSuccess(false);
        dtoResult.setErrorCode(result.getErrorCode());
        return dtoResult.toRpcClientResult();
    }
    List<Coin> coinList = result.getData();
    Page<UtxoDto> page = new Page<>(pageNumber, pageSize, result.getData().size());
    int start = pageNumber * pageSize - pageSize;
    if (start >= coinList.size()) {
        dtoResult.setSuccess(true);
        dtoResult.setData(page);
        return dtoResult.toRpcClientResult();
    }
    List<UtxoDto> utxoDtoList = new ArrayList<>();
    byte[] txHash = new byte[NulsDigestData.HASH_LENGTH];
    for (Coin coin : coinList) {
        // 找到每一条uxto，对应的交易类型与时间
        System.arraycopy(coin.getOwner(), 0, txHash, 0, NulsDigestData.HASH_LENGTH);
        Transaction tx = ledgerService.getTx(txHash);
        if (tx == null) {
            NulsDigestData hash = new NulsDigestData();
            try {
                hash.parse(txHash, 0);
                tx = accountLedgerService.getUnconfirmedTransaction(hash).getData();
            } catch (NulsException e) {
                Log.error(e);
                return Result.getFailed(KernelErrorCode.DATA_PARSE_ERROR).toRpcClientResult();
            }
        }
        // 考虑到数据回滚，会出现找不到的情况
        if (tx == null) {
            continue;
        }
        utxoDtoList.add(new UtxoDto(coin, tx));
    }
    // 重新赋值page对象
    page = new Page<>(pageNumber, pageSize, utxoDtoList.size());
    if (start >= page.getTotal()) {
        dtoResult.setData(page);
        return dtoResult.toRpcClientResult();
    }
    Collections.sort(utxoDtoList, UtxoDtoComparator.getInstance());
    int end = start + pageSize;
    if (end > utxoDtoList.size()) {
        end = utxoDtoList.size();
    }
    page.setList(utxoDtoList.subList(start, end));
    dtoResult.setSuccess(true);
    dtoResult.setData(page);
    return dtoResult.toRpcClientResult();
}

Example 7 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class BalanceManager method getCoinListByAddress.

public List<Coin> getCoinListByAddress(byte[] address) {
    List<Coin> coinList = new ArrayList<>();
    Collection<Entry<byte[], byte[]>> rawList = localUtxoStorageService.loadAllCoinList();
    for (Entry<byte[], byte[]> coinEntry : rawList) {
        Coin coin = new Coin();
        try {
            coin.parse(coinEntry.getValue(), 0);
        } catch (NulsException e) {
            Log.info("parse coin form db error");
            continue;
        }
        if (Arrays.equals(coin.getAddress(), address)) {
            coin.setTempOwner(coin.getOwner());
            coin.setOwner(coinEntry.getKey());
            coinList.add(coin);
        }
    }
    return coinList;
}

Example 8 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class BalanceManager method getBalance.

/**
 * 获取账户余额
 */
public Result<Balance> getBalance(byte[] address) {
    lock.lock();
    try {
        if (address == null || address.length != Address.ADDRESS_LENGTH) {
            return Result.getFailed(AccountLedgerErrorCode.PARAMETER_ERROR);
        }
        String addressKey = AddressTool.getStringAddressByBytes(address);
        BalanceCacheEntity entity = balanceMap.get(addressKey);
        Balance balance = null;
        if (entity == null || (entity.getEarlistLockTime() > 0L && entity.getEarlistLockTime() <= TimeService.currentTimeMillis())) {
            try {
                balance = calBalanceByAddress(address);
            } catch (NulsException e) {
                Log.info("getbalance of address[" + AddressTool.getStringAddressByBytes(address) + "] error");
            }
        } else {
            balance = entity.getBalance();
        }
        return Result.getSuccess().setData(balance);
    } finally {
        lock.unlock();
    }
}

Example 9 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ContractTxServiceImpl method contractCallTx.

/**
 * 创建调用智能合约的交易
 *
 * @param sender          交易创建者
 * @param value           交易附带的货币量
 * @param gasLimit        最大gas消耗
 * @param price           执行合约单价
 * @param contractAddress 合约地址
 * @param methodName      方法名
 * @param methodDesc      方法签名，如果方法名不重复，可以不传
 * @param args            参数列表
 * @param password        账户密码
 * @param remark          备注
 * @return
 */
@Override
public Result contractCallTx(String sender, Na value, Long gasLimit, Long price, String contractAddress, String methodName, String methodDesc, String[][] args, String password, String remark) {
    try {
        AssertUtil.canNotEmpty(sender, "the sender address can not be empty");
        AssertUtil.canNotEmpty(contractAddress, "the contractAddress can not be empty");
        AssertUtil.canNotEmpty(methodName, "the methodName can not be empty");
        if (value == null) {
            value = Na.ZERO;
        }
        if (!ContractUtil.checkPrice(price.longValue())) {
            return Result.getFailed(ContractErrorCode.CONTRACT_MINIMUM_PRICE);
        }
        Result<Account> accountResult = accountService.getAccount(sender);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        Account account = accountResult.getData();
        // 验证账户密码
        if (account.isEncrypted() && account.isLocked()) {
            AssertUtil.canNotEmpty(password, "the password can not be empty");
            if (!account.validatePassword(password)) {
                return Result.getFailed(AccountErrorCode.PASSWORD_IS_WRONG);
            }
        }
        if (!account.isOk()) {
            return Result.getFailed(AccountErrorCode.IMPORTING_ACCOUNT);
        }
        byte[] senderBytes = AddressTool.getAddress(sender);
        byte[] contractAddressBytes = AddressTool.getAddress(contractAddress);
        BlockHeader blockHeader = NulsContext.getInstance().getBestBlock().getHeader();
        // 当前区块高度
        long blockHeight = blockHeader.getHeight();
        // 当前区块状态根
        byte[] prevStateRoot = ContractUtil.getStateRoot(blockHeader);
        AssertUtil.canNotEmpty(prevStateRoot, "All features of the smart contract are locked.");
        // 组装VM执行数据
        ProgramCall programCall = new ProgramCall();
        programCall.setContractAddress(contractAddressBytes);
        programCall.setSender(senderBytes);
        programCall.setNumber(blockHeight);
        programCall.setMethodName(methodName);
        programCall.setMethodDesc(methodDesc);
        programCall.setArgs(args);
        // 如果方法是不上链的合约调用，同步执行合约代码，不改变状态根，并返回值
        ProgramMethod method;
        if ((method = vmHelper.getMethodInfoByContractAddress(methodName, methodDesc, contractAddressBytes)).isView()) {
            ProgramResult programResult = vmHelper.invokeCustomGasViewMethod(contractAddressBytes, methodName, methodDesc, ContractUtil.twoDimensionalArray(args, method.argsType2Array()));
            // programCall.setValue(BigInteger.ZERO);
            // programCall.setGasLimit(ContractConstant.CONTRACT_CONSTANT_GASLIMIT);
            // programCall.setPrice(ContractConstant.CONTRACT_CONSTANT_PRICE);
            // ProgramExecutor track = programExecutor.begin(prevStateRoot);
            // ProgramResult programResult = track.call(programCall);
            Result result;
            if (!programResult.isSuccess()) {
                Log.error(programResult.getStackTrace());
                result = Result.getFailed(ContractErrorCode.DATA_ERROR);
                result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
                result = checkVmResultAndReturn(programResult.getErrorMessage(), result);
            } else {
                result = Result.getSuccess();
                result.setData(programResult.getResult());
            }
            return result;
        }
        // 创建链上交易，包含智能合约
        programCall.setValue(BigInteger.valueOf(value.getValue()));
        programCall.setPrice(price.longValue());
        programCall.setGasLimit(gasLimit.longValue());
        CallContractTransaction tx = new CallContractTransaction();
        if (StringUtils.isNotBlank(remark)) {
            try {
                tx.setRemark(remark.getBytes(NulsConfig.DEFAULT_ENCODING));
            } catch (UnsupportedEncodingException e) {
                Log.error(e);
                throw new RuntimeException(e);
            }
        }
        tx.setTime(TimeService.currentTimeMillis());
        // 计算CoinData
        /*
             * 智能合约计算手续费以消耗的Gas*Price为根据，然而创建交易时并不执行智能合约，
             * 所以此时交易的CoinData是不固定的，比实际要多，
             * 打包时执行智能合约，真实的手续费已算出，然而tx的手续费已扣除，
             * 多扣除的费用会以CoinBase交易还给Sender
             */
        CoinData coinData = new CoinData();
        // 向智能合约账户转账
        if (!Na.ZERO.equals(value)) {
            Coin toCoin = new Coin(contractAddressBytes, value);
            coinData.getTo().add(toCoin);
        }
        // 执行VM验证合法性
        ProgramExecutor track = programExecutor.begin(prevStateRoot);
        // 验证合约时跳过Gas验证
        long realGasLimit = programCall.getGasLimit();
        programCall.setGasLimit(MAX_GASLIMIT);
        ProgramResult programResult = track.call(programCall);
        // 执行结果失败时，交易直接返回错误，不上链，不消耗Gas
        if (!programResult.isSuccess()) {
            Log.error(programResult.getStackTrace());
            Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
            result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
            result = checkVmResultAndReturn(programResult.getErrorMessage(), result);
            return result;
        } else {
            // 其他合法性都通过后，再验证Gas
            track = programExecutor.begin(prevStateRoot);
            programCall.setGasLimit(realGasLimit);
            programResult = track.call(programCall);
            if (!programResult.isSuccess()) {
                Log.error(programResult.getStackTrace());
                Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
                result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
                return result;
            }
        }
        long gasUsed = gasLimit.longValue();
        Na imputedNa = Na.valueOf(LongUtils.mul(gasUsed, price));
        // 总花费
        Na totalNa = imputedNa.add(value);
        // 组装txData
        CallContractData callContractData = new CallContractData();
        callContractData.setContractAddress(contractAddressBytes);
        callContractData.setSender(senderBytes);
        callContractData.setValue(value.getValue());
        callContractData.setPrice(price.longValue());
        callContractData.setGasLimit(gasLimit.longValue());
        callContractData.setMethodName(methodName);
        callContractData.setMethodDesc(methodDesc);
        if (args != null) {
            callContractData.setArgsCount((byte) args.length);
            callContractData.setArgs(args);
        }
        tx.setTxData(callContractData);
        CoinDataResult coinDataResult = accountLedgerService.getCoinData(senderBytes, totalNa, tx.size() + coinData.size(), TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
        if (!coinDataResult.isEnough()) {
            return Result.getFailed(TransactionErrorCode.INSUFFICIENT_BALANCE);
        }
        coinData.setFrom(coinDataResult.getCoinList());
        // 找零的UTXO
        if (coinDataResult.getChange() != null) {
            coinData.getTo().add(coinDataResult.getChange());
        }
        tx.setCoinData(coinData);
        tx.setHash(NulsDigestData.calcDigestData(tx.serializeForHash()));
        // 生成签名
        List<ECKey> signEckeys = new ArrayList<>();
        List<ECKey> scriptEckeys = new ArrayList<>();
        ECKey eckey = account.getEcKey(password);
        // 如果最后一位为1则表示该交易包含普通签名
        if ((coinDataResult.getSignType() & 0x01) == 0x01) {
            signEckeys.add(eckey);
        }
        // 如果倒数第二位位为1则表示该交易包含脚本签名
        if ((coinDataResult.getSignType() & 0x02) == 0x02) {
            scriptEckeys.add(eckey);
        }
        SignatureUtil.createTransactionSignture(tx, scriptEckeys, signEckeys);
        // 保存未确认Token转账
        Result<byte[]> unConfirmedTokenTransferResult = this.saveUnConfirmedTokenTransfer(tx, sender, contractAddress, methodName, args);
        if (unConfirmedTokenTransferResult.isFailed()) {
            return unConfirmedTokenTransferResult;
        }
        byte[] infoKey = unConfirmedTokenTransferResult.getData();
        // 保存未确认交易到本地账本
        Result saveResult = accountLedgerService.verifyAndSaveUnconfirmedTransaction(tx);
        if (saveResult.isFailed()) {
            if (infoKey != null) {
                contractTokenTransferStorageService.deleteTokenTransferInfo(infoKey);
            }
            if (KernelErrorCode.DATA_SIZE_ERROR.getCode().equals(saveResult.getErrorCode().getCode())) {
                // 重新算一次交易(不超出最大交易数据大小下)的最大金额
                Result rs = accountLedgerService.getMaxAmountOfOnce(senderBytes, tx, TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
                if (rs.isSuccess()) {
                    Na maxAmount = (Na) rs.getData();
                    rs = Result.getFailed(KernelErrorCode.DATA_SIZE_ERROR_EXTEND);
                    rs.setMsg(rs.getMsg() + maxAmount.toDouble());
                }
                return rs;
            }
            return saveResult;
        }
        // 广播
        Result sendResult = transactionService.broadcastTx(tx);
        if (sendResult.isFailed()) {
            // 失败则回滚
            accountLedgerService.deleteTransaction(tx);
            if (infoKey != null) {
                contractTokenTransferStorageService.deleteTokenTransferInfo(infoKey);
            }
            return sendResult;
        }
        return Result.getSuccess().setData(tx.getHash().getDigestHex());
    } catch (IOException e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_EXECUTE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_EXECUTE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    }
}

Example 10 with NulsException

use of io.nuls.kernel.exception.NulsException in project nuls by nuls-io.

the class ContractTxServiceImpl method contractCreateTx.

/**
 * 创建生成智能合约的交易
 * 如果是创建合约的交易，交易仅仅用于创建合约，合约内部不执行复杂逻辑
 *
 * @param sender       交易创建者
 * @param gasLimit     最大gas消耗
 * @param price        执行合约单价
 * @param contractCode 合约代码
 * @param args         参数列表
 * @param password     账户密码
 * @param remark       备注
 * @return
 */
@Override
public Result contractCreateTx(String sender, Long gasLimit, Long price, byte[] contractCode, String[][] args, String password, String remark) {
    try {
        AssertUtil.canNotEmpty(sender, "the sender address can not be empty");
        AssertUtil.canNotEmpty(contractCode, "the contractCode can not be empty");
        Na value = Na.ZERO;
        Result<Account> accountResult = accountService.getAccount(sender);
        if (accountResult.isFailed()) {
            return accountResult;
        }
        if (!accountResult.getData().isOk()) {
            return Result.getFailed(AccountErrorCode.IMPORTING_ACCOUNT);
        }
        if (!ContractUtil.checkPrice(price.longValue())) {
            return Result.getFailed(ContractErrorCode.CONTRACT_MINIMUM_PRICE);
        }
        Account account = accountResult.getData();
        // 验证账户密码
        if (account.isEncrypted() && account.isLocked()) {
            AssertUtil.canNotEmpty(password, "the password can not be empty");
            if (!account.validatePassword(password)) {
                return Result.getFailed(AccountErrorCode.PASSWORD_IS_WRONG);
            }
        }
        // 生成一个地址作为智能合约地址
        Address contractAddress = AccountTool.createContractAddress();
        byte[] contractAddressBytes = contractAddress.getAddressBytes();
        byte[] senderBytes = AddressTool.getAddress(sender);
        CreateContractTransaction tx = new CreateContractTransaction();
        if (StringUtils.isNotBlank(remark)) {
            try {
                tx.setRemark(remark.getBytes(NulsConfig.DEFAULT_ENCODING));
            } catch (UnsupportedEncodingException e) {
                Log.error(e);
                throw new RuntimeException(e);
            }
        }
        tx.setTime(TimeService.currentTimeMillis());
        // 计算CoinData
        /*
             * 智能合约计算手续费以消耗的Gas*Price为根据，然而创建交易时并不执行智能合约，
             * 所以此时交易的CoinData是不固定的，比实际要多，
             * 打包时执行智能合约，真实的手续费已算出，然而tx的手续费已扣除，
             * 多扣除的费用会以CoinBase交易还给Sender
             */
        CoinData coinData = new CoinData();
        BlockHeader blockHeader = NulsContext.getInstance().getBestBlock().getHeader();
        // 当前区块高度
        long blockHeight = blockHeader.getHeight();
        // 当前区块状态根
        byte[] prevStateRoot = ContractUtil.getStateRoot(blockHeader);
        AssertUtil.canNotEmpty(prevStateRoot, "All features of the smart contract are locked.");
        // 执行VM验证合法性
        ProgramCreate programCreate = new ProgramCreate();
        programCreate.setContractAddress(contractAddressBytes);
        programCreate.setSender(senderBytes);
        programCreate.setValue(BigInteger.valueOf(value.getValue()));
        programCreate.setPrice(price.longValue());
        programCreate.setGasLimit(gasLimit.longValue());
        programCreate.setNumber(blockHeight);
        programCreate.setContractCode(contractCode);
        if (args != null) {
            programCreate.setArgs(args);
        }
        ProgramExecutor track = programExecutor.begin(prevStateRoot);
        // 验证合约时跳过Gas验证
        long realGasLimit = programCreate.getGasLimit();
        programCreate.setGasLimit(MAX_GASLIMIT);
        ProgramResult programResult = track.create(programCreate);
        // 执行结果失败时，交易直接返回错误，不上链，不消耗Gas，
        if (!programResult.isSuccess()) {
            Log.error(programResult.getStackTrace());
            Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
            result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
            result = checkVmResultAndReturn(programResult.getErrorMessage(), result);
            return result;
        } else {
            // 其他合法性都通过后，再验证Gas
            track = programExecutor.begin(prevStateRoot);
            programCreate.setGasLimit(realGasLimit);
            programResult = track.create(programCreate);
            if (!programResult.isSuccess()) {
                Log.error(programResult.getStackTrace());
                Result result = Result.getFailed(ContractErrorCode.DATA_ERROR);
                result.setMsg(ContractUtil.simplifyErrorMsg(programResult.getErrorMessage()));
                return result;
            }
        }
        long gasUsed = gasLimit.longValue();
        Na imputedNa = Na.valueOf(LongUtils.mul(gasUsed, price));
        // 总花费
        Na totalNa = imputedNa.add(value);
        // 组装txData
        CreateContractData createContractData = new CreateContractData();
        createContractData.setSender(senderBytes);
        createContractData.setContractAddress(contractAddressBytes);
        createContractData.setValue(value.getValue());
        createContractData.setGasLimit(gasLimit);
        createContractData.setPrice(price);
        createContractData.setCodeLen(contractCode.length);
        createContractData.setCode(contractCode);
        if (args != null) {
            createContractData.setArgsCount((byte) args.length);
            if (args.length > 0) {
                createContractData.setArgs(args);
            }
        }
        tx.setTxData(createContractData);
        CoinDataResult coinDataResult = accountLedgerService.getCoinData(senderBytes, totalNa, tx.size() + coinData.size(), TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
        if (!coinDataResult.isEnough()) {
            return Result.getFailed(TransactionErrorCode.INSUFFICIENT_BALANCE);
        }
        coinData.setFrom(coinDataResult.getCoinList());
        // 找零的UTXO
        if (coinDataResult.getChange() != null) {
            coinData.getTo().add(coinDataResult.getChange());
        }
        tx.setCoinData(coinData);
        tx.setHash(NulsDigestData.calcDigestData(tx.serializeForHash()));
        // 生成签名
        List<ECKey> signEckeys = new ArrayList<>();
        List<ECKey> scriptEckeys = new ArrayList<>();
        ECKey eckey = account.getEcKey(password);
        // 如果最后一位为1则表示该交易包含普通签名
        if ((coinDataResult.getSignType() & 0x01) == 0x01) {
            signEckeys.add(eckey);
        }
        // 如果倒数第二位位为1则表示该交易包含脚本签名
        if ((coinDataResult.getSignType() & 0x02) == 0x02) {
            scriptEckeys.add(eckey);
        }
        SignatureUtil.createTransactionSignture(tx, scriptEckeys, signEckeys);
        // 保存未确认交易到本地账本
        Result saveResult = accountLedgerService.verifyAndSaveUnconfirmedTransaction(tx);
        if (saveResult.isFailed()) {
            if (KernelErrorCode.DATA_SIZE_ERROR.getCode().equals(saveResult.getErrorCode().getCode())) {
                // 重新算一次交易(不超出最大交易数据大小下)的最大金额
                Result rs = accountLedgerService.getMaxAmountOfOnce(senderBytes, tx, TransactionFeeCalculator.MIN_PRICE_PRE_1024_BYTES);
                if (rs.isSuccess()) {
                    Na maxAmount = (Na) rs.getData();
                    rs = Result.getFailed(KernelErrorCode.DATA_SIZE_ERROR_EXTEND);
                    rs.setMsg(rs.getMsg() + maxAmount.toDouble());
                }
                return rs;
            }
            return saveResult;
        }
        // 广播交易
        Result sendResult = transactionService.broadcastTx(tx);
        if (sendResult.isFailed()) {
            accountLedgerService.deleteTransaction(tx);
            return sendResult;
        }
        Map<String, String> resultMap = MapUtil.createHashMap(2);
        String txHash = tx.getHash().getDigestHex();
        String contractAddressStr = AddressTool.getStringAddressByBytes(contractAddressBytes);
        resultMap.put("txHash", txHash);
        resultMap.put("contractAddress", contractAddressStr);
        // 保留未确认的创建合约交易到内存中
        this.saveLocalUnconfirmedCreateContractTransaction(sender, resultMap, tx.getTime());
        return Result.getSuccess().setData(resultMap);
    } catch (IOException e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_TX_CREATE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    } catch (NulsException e) {
        Log.error(e);
        return Result.getFailed(e.getErrorCode());
    } catch (Exception e) {
        Log.error(e);
        Result result = Result.getFailed(ContractErrorCode.CONTRACT_TX_CREATE_ERROR);
        result.setMsg(e.getMessage());
        return result;
    }
}