org.web3j.tx.Transfer Java Examples

/**
 * Ether transfer tests using methods {@link Transfer#sendFunds()}.
 * Sending account needs to be unlocked for this to work.   
 */
@Test
public void testSendFunds() throws Exception {
	BigDecimal amountEther = BigDecimal.valueOf(0.123);
	BigInteger amountWei = Convert.toWei(amountEther, Convert.Unit.ETHER).toBigInteger();

	ensureFunds(Alice.ADDRESS, amountWei);

	BigInteger fromBalanceBefore = getBalanceWei(Alice.ADDRESS);
	BigInteger toBalanceBefore = getBalanceWei(Bob.ADDRESS);

	// this is the method to test here
	TransactionReceipt txReceipt = Transfer.sendFunds(
			web3j, Alice.CREDENTIALS, Bob.ADDRESS, amountEther, Convert.Unit.ETHER);

	BigInteger txFees = txReceipt.getGasUsed().multiply(Web3jConstants.GAS_PRICE);

	assertFalse(txReceipt.getBlockHash().isEmpty());
	assertEquals("Unexected balance for 'from' address", fromBalanceBefore.subtract(amountWei.add(txFees)), getBalanceWei(Alice.ADDRESS));
	assertEquals("Unexected balance for 'to' address", toBalanceBefore.add(amountWei), getBalanceWei(Bob.ADDRESS));
}
 

private TransactionReceipt performTransfer(
        Web3j web3j, String destinationAddress,String chainId, Credentials credentials,
        BigDecimal amountInWei) {

    console.printf("Commencing transfer (this may take a few minutes) ");
    try {
        Future<TransactionReceipt> future = Transfer.sendFunds(
                web3j, credentials, destinationAddress,chainId, amountInWei, Convert.Unit.LAT)
                .sendAsync();

        while (!future.isDone()) {
            console.printf(".");
            Thread.sleep(500);
        }
        console.printf("$%n%n");
        return future.get();
    } catch (InterruptedException | ExecutionException | TransactionException | IOException e) {
        exitError("Problem encountered transferring funds: \n" + e.getMessage());
    }
    throw new RuntimeException("Application exit failure");
}
 

private TransactionReceipt performTransfer(
        Web3j web3j, String destinationAddress, Credentials credentials,
        BigDecimal amountInWei) {

    console.printf("Commencing transfer (this may take a few minutes) ");
    try {
        Future<TransactionReceipt> future = Transfer.sendFunds(
                web3j, credentials, destinationAddress, amountInWei, Convert.Unit.WEI)
                .sendAsync();

        while (!future.isDone()) {
            console.printf(".");
            Thread.sleep(500);
        }
        console.printf("$%n%n");
        return future.get();
    } catch (InterruptedException | ExecutionException | TransactionException | IOException e) {
        exitError("Problem encountered transferring funds: \n" + e.getMessage());
    }
    throw new RuntimeException("Application exit failure");
}
 

@Test
public void transferToContract() throws Exception {
	String toAddress = contractAddress;

	// get balance
	PlatonGetBalance balance = web3j.platonGetBalance(toAddress, DefaultBlockParameterName.LATEST).send();
	System.err.println("Before transfer,balance >>> " + balance.getBalance().toString());

	// transfer to toAddress
	Transfer transfer = new Transfer(web3j, transactionManager);
	BigDecimal value = BigDecimal.valueOf(500L);
	TransactionReceipt receipt = transfer.sendFunds(toAddress, value, Convert.Unit.LAT, GAS_PRICE, GAS_LIMIT).send();
	System.err.println("transfer status >>> " + receipt.getStatus());
	System.err.println("transfer result >>> " + JSON.toJSONString(receipt));

	// transfer event
	PayWages payWages = PayWages.load(contractAddress, web3j, transactionManager, gasProvider);
	List<TransferEventResponse> list = payWages.getTransferEvents(receipt);
	System.err.println("to >>> " + list.get(0)._to);
	System.err.println("value >>> " + list.get(0)._value.toString());
	System.err.println("TransferEventResponse >>> " + JSON.toJSONString(list));

	// get balance
	balance = web3j.platonGetBalance(toAddress, DefaultBlockParameterName.LATEST).send();
	System.err.println("After transfer, balance >>> " + balance.getBalance().toString());
}
 

private RemoteCall<TransactionReceipt> createTransaction(
        Transfer transfer, BigInteger gasPrice) {
    return transfer.sendFunds(
            BOB.getAddress(),
            BigDecimal.valueOf(1.0),
            Convert.Unit.KWEI,
            gasPrice,
            Transfer.GAS_LIMIT);
}
 

@Test
public void testTransfer() throws Exception {
    TransactionReceipt transactionReceipt =
            Transfer.sendFunds(
                            web3j,
                            ALICE,
                            BOB.getAddress(),
                            BigDecimal.valueOf(0.2),
                            Convert.Unit.ETHER)
                    .send();
    assertFalse(transactionReceipt.getBlockHash().isEmpty());
}
 

public static TransactionReceipt sendFundsToContract(Credentials credentials,
                                                     Web3j web3j,
                                                     int etherAmount,
                                                     String toAddress,
                                                     Transfer transfer) throws Exception {

    return transfer.sendFunds(
            toAddress,
            new BigDecimal(etherAmount),
            Convert.Unit.ETHER).send();
}
 

@Test
public void testTransfer() throws Exception {
    TransactionReceipt transactionReceipt = Transfer.sendFunds(
            web3j, ALICE, BOB.getAddress(), BigDecimal.valueOf(0.2), Convert.Unit.ETHER)
            .send();
    assertFalse(transactionReceipt.getBlockHash().isEmpty());
}
 

@Test
public void transfer() throws Exception {
    Transfer.sendFunds(web3j, superCredentials, chainId, deleteCredentials.getAddress(), new BigDecimal("10000000"), Unit.LAT).send();
    System.out.println("stakingCredentials balance="+ web3j.platonGetBalance(deleteCredentials.getAddress(), DefaultBlockParameterName.LATEST).send().getBalance());
}
 

@Test
public void transfer() throws Exception {
	Transfer.sendFunds(web3j, superCredentials, chainId, stakingCredentials.getAddress(), new BigDecimal("10000"), Unit.LAT).send();
	System.out.println("stakingCredentials balance="+ web3j.platonGetBalance(stakingCredentials.getAddress(), DefaultBlockParameterName.LATEST).send().getBalance());
}
 

@Test
public void transfer() throws Exception {
	Transfer.sendFunds(web3j, superCredentials, chainId, stakingCredentials.getAddress(), new BigDecimal("10000000"), Unit.LAT).send();
	System.out.println("stakingCredentials balance="+ web3j.platonGetBalance(stakingCredentials.getAddress(), DefaultBlockParameterName.LATEST).send().getBalance());
}
 

private RemoteCall<TransactionReceipt> createTransaction(
        Transfer transfer, BigInteger gasPrice) {
    return transfer.sendFunds(
            BOB.getAddress(), BigDecimal.valueOf(1.0), Convert.Unit.KWEI,
            gasPrice, Transfer.GAS_LIMIT);
}
 

@Test
public void transfer() throws Exception {
	Transfer.sendFunds(web3j, superCredentials, chainId, deleteCredentials.getAddress(), new BigDecimal("10000000"), Unit.LAT).send();
	System.out.println("stakingCredentials balance="+ web3j.platonGetBalance(deleteCredentials.getAddress(), DefaultBlockParameterName.LATEST).send().getBalance());
}
 

public void setTransfer(Transfer transfer) {
    this.transfer = transfer;
}
 

public void transfer() throws Exception {
    Transfer.sendFunds(web3j, superCredentials, chainId, proposalCredentials.getAddress(), transferValue, Unit.LAT).send();
    Transfer.sendFunds(web3j, superCredentials, chainId, voteCredentials.getAddress(), transferValue, Unit.LAT).send();
}
 

public void transfer() throws Exception {
    Transfer.sendFunds(web3j, superCredentials, chainId, stakingCredentials.getAddress(), transferValue, Unit.LAT).send();
    Transfer.sendFunds(web3j, superCredentials, chainId, delegateCredentials.getAddress(), transferValue, Unit.LAT).send();
}
 

public void transfer() throws Exception {
	Transfer.sendFunds(web3j, superCredentials, chainId, restrictingSendCredentials.getAddress(), transferValue, Unit.LAT).send();
}
 

public void transfer() throws Exception {
	Transfer.sendFunds(web3j, superCredentials, chainId, slashCredentials.getAddress(), transferValue, Unit.LAT).send();
}