Java TransactionManager类代码示例

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
private byte[] callHash(String name, Type...parameters) throws InterruptedException, ExecutionException {

        Function function = new Function(name,
            Arrays.asList(parameters),
            Arrays.asList(new TypeReference<Bytes32>() {})
        );
        String encodedFunction = FunctionEncoder.encode(function);

        TransactionManager transactionManager = cfg.getTransactionManager(cfg.getMainAddress());
        String channelLibraryAddress = contractsProperties.getAddress().get("ChannelLibrary").toString();
        org.web3j.protocol.core.methods.response.EthCall ethCall = web3j.ethCall(
            Transaction.createEthCallTransaction(
                transactionManager.getFromAddress(), channelLibraryAddress, encodedFunction),
            DefaultBlockParameterName.LATEST)
            .sendAsync().get();

        String value = ethCall.getValue();
        List<Type> list = FunctionReturnDecoder.decode(value, function.getOutputParameters());
        return ((Bytes32) list.get(0)).getValue();
    }
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
private <T extends Contract> T create(Class<T> type, TransactionReceipt rc) {
    try {
        Constructor<T> constructor = type.getDeclaredConstructor(
            String.class,
            Web3j.class, TransactionManager.class,
            BigInteger.class, BigInteger.class);
        constructor.setAccessible(true);

        T contract = constructor.newInstance(null, web3j, transactionManager, rpcProperties.getGasPrice(), rpcProperties.getGasLimit());
        contract.setContractAddress(rc.getContractAddress());
        contract.setTransactionReceipt(rc);
        return contract;
    } catch (Exception e) {
        throw Throwables.propagate(e);
    }
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public void refill(BigDecimal minBalance, String address, Supplier<TransactionManager> managerSupplier) throws InterruptedException, ExecutionException {
    BigDecimal balance = ethereumService.getBalance(address, Convert.Unit.ETHER);

    log.info("Balance of {} is {}", address, balance);

    if (minBalance != null && minBalance.signum() > 0) {
        if (balance.compareTo(minBalance) < 0) {
            TransactionManager manager = managerSupplier.get();
            log.info("Refill {} ETH from {} to {}", minBalance, manager.getFromAddress(), address);
            try {
                new Transfer(web3j, manager).sendFunds(address, minBalance, Convert.Unit.ETHER).send();
            } catch (Exception e) {
                log.warn("Refill failed", e);
            }
            log.info("Balance after refill of {} is {}", address, ethereumService.getBalance(address, Convert.Unit.ETHER));
        }
    }
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
void generateJavaFiles(
        String contractName, String bin, List<AbiDefinition> abi, String destinationDir,
        String basePackageName, Map<String, String> addresses)
        throws IOException, ClassNotFoundException {
    String className = Strings.capitaliseFirstLetter(contractName);

    TypeSpec.Builder classBuilder = createClassBuilder(className, bin);

    classBuilder.addMethod(buildConstructor(Credentials.class, CREDENTIALS));
    classBuilder.addMethod(buildConstructor(TransactionManager.class,
            TRANSACTION_MANAGER));
    classBuilder.addMethods(
            buildFunctionDefinitions(className, classBuilder, abi));
    classBuilder.addMethod(buildLoad(className, Credentials.class, CREDENTIALS));
    classBuilder.addMethod(buildLoad(className, TransactionManager.class,
            TRANSACTION_MANAGER));

    addAddressesSupport(classBuilder, addresses);

    write(basePackageName, classBuilder.build(), destinationDir);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public ContractsManager(String fromAddress, EthRpcProperties rpcProperties, Web3j web3j, ContractsProperties contractsProperties, TransactionManager transactionManager) {
    this.web3j = web3j;
    this.rpcProperties = rpcProperties;
    this.transactionManager = transactionManager;
    this.contractsProperties = contractsProperties;
    
    registry = loadPredeployedContract(EndpointRegistryContract.class);
    token = loadPredeployedContract(StandardToken.class, "Token");
    this.fromAddress = new Address(fromAddress);
    tokenService = new TokenService(token, this.fromAddress);
    channelManager = loadPredeployedContract(ChannelManagerContract.class);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public <C extends Contract> C load(Class<C> contractClass, Address address)  {
    try {
        //String contractAddress, Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit
        Method method = contractClass.getDeclaredMethod("load", String.class, Web3j.class, TransactionManager.class, BigInteger.class, BigInteger.class);
        Object contract = method.invoke(null, address.toString(), web3j, transactionManager, rpcProperties.getGasPrice(), rpcProperties.getGasLimit());
        return contractClass.cast(contract);
    } catch (Exception e) {
        throw Throwables.propagate(e);
    }
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public Address deployContract(TransactionManager transactionManager, String binary, Map<String, Address> libraries, Type... constructorArgs) throws IOException, InterruptedException, TransactionException {
    ContractLinker linker = new ContractLinker(binary);
    if (libraries != null && !libraries.isEmpty()) {
        libraries.forEach(linker::link);
    }
    linker.assertLinked();
    String encodedConstructor = FunctionEncoder.encodeConstructor(Arrays.<Type>asList(constructorArgs));
    String data = linker.getBinary() + encodedConstructor;

    EthSendTransaction transactionResponse = transactionManager.sendTransaction(
        properties.getGasPrice(), properties.getGasLimit(), null, data, BigInteger.ZERO);

    if (transactionResponse.hasError()) {
        throw new RuntimeException("Error processing transaction request: "
            + transactionResponse.getError().getMessage());
    }

    String transactionHash = transactionResponse.getTransactionHash();

    Optional<TransactionReceipt> receiptOptional =
        sendTransactionReceiptRequest(transactionHash, web3j);

    long millis = properties.getSleep().toMillis();
    int attempts = properties.getAttempts();
    for (int i = 0; i < attempts; i++) {
        if (!receiptOptional.isPresent()) {
            Thread.sleep(millis);
            receiptOptional = sendTransactionReceiptRequest(transactionHash, web3j);
        } else {
            String contractAddress = receiptOptional.get().getContractAddress();
            return new Address(contractAddress);
        }
    }
    throw new TransactionException("Transaction receipt was not generated after " + (millis * attempts / 1000)
        + " seconds for transaction: " + transactionHash);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public static RemoteCall<HumanStandardToken> deploy(Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit, BigInteger _initialAmount, String _tokenName, BigInteger _decimalUnits, String _tokenSymbol) {
    String encodedConstructor = FunctionEncoder.encodeConstructor(Arrays.<Type>asList(new org.web3j.abi.datatypes.generated.Uint256(_initialAmount),
            new org.web3j.abi.datatypes.Utf8String(_tokenName),
            new org.web3j.abi.datatypes.generated.Uint8(_decimalUnits),
            new org.web3j.abi.datatypes.Utf8String(_tokenSymbol)));
    return deployRemoteCall(HumanStandardToken.class, web3j, transactionManager, gasPrice, gasLimit, BINARY, encodedConstructor);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public static RemoteCall<HumanStandardToken> deploy(Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit, BigInteger _initialAmount, String _tokenName, BigInteger _decimalUnits, String _tokenSymbol) {
    String encodedConstructor = FunctionEncoder.encodeConstructor(Arrays.<Type>asList(new org.web3j.abi.datatypes.generated.Uint256(_initialAmount), 
            new org.web3j.abi.datatypes.Utf8String(_tokenName), 
            new org.web3j.abi.datatypes.generated.Uint8(_decimalUnits), 
            new org.web3j.abi.datatypes.Utf8String(_tokenSymbol)));
    return deployRemoteCall(HumanStandardToken.class, web3j, transactionManager, gasPrice, gasLimit, BINARY, encodedConstructor);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
private ModumToken(String contractAddress, Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit) {
    super(BINARY, contractAddress, web3j, transactionManager, gasPrice, gasLimit);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public static Future<ModumToken> deploy(Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit, BigInteger initialWeiValue) {
    return deployAsync(ModumToken.class, web3j, transactionManager, gasPrice, gasLimit, BINARY, "", initialWeiValue);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public static ModumToken load(String contractAddress, Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit) {
    return new ModumToken(contractAddress, web3j, transactionManager, gasPrice, gasLimit);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public TransactionManager getTransactionManager() {
    return transactionManager;
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
public ContractsManager createManager(TransactionManager transactionManager, String fromAddress) {
    return new ContractsManager(fromAddress, ethProperties.getRpc(), web3j, contractsProperties, transactionManager);
}
 

import org.web3j.tx.TransactionManager; //导入依赖的package包/类
private Echo_sol_Echo(String contractAddress, Web3j web3j, TransactionManager transactionManager, BigInteger gasPrice, BigInteger gasLimit) {
    super(BINARY, contractAddress, web3j, transactionManager, gasPrice, gasLimit);
}