Examples with TransactionException com.scalar.db.exception.transaction.TransactionException used on opensource projects

Example 1 with TransactionException

use of com.scalar.db.exception.transaction.TransactionException in project scalardb by scalar-labs.

the class DistributedTransactionServiceWithJdbcTransactionIntegrationTest method populateRecords.

private void populateRecords() throws TransactionException {
    GrpcTransaction transaction = manager.start();
    IntStream.range(0, NUM_ACCOUNTS).forEach(i -> IntStream.range(0, NUM_TYPES).forEach(j -> {
        Key partitionKey = new Key(ACCOUNT_ID, i);
        Key clusteringKey = new Key(ACCOUNT_TYPE, j);
        Put put = new Put(partitionKey, clusteringKey).forNamespace(NAMESPACE).forTable(TABLE).withValue(BALANCE, INITIAL_BALANCE);
        try {
            transaction.put(put);
        } catch (CrudException e) {
            throw new RuntimeException(e);
        }
    }));
    transaction.commit();
}

Example 2 with TransactionException

use of com.scalar.db.exception.transaction.TransactionException in project scalardb by scalar-labs.

the class ElectronicMoneyWithTransaction method charge.

@Override
public void charge(String id, int amount) throws TransactionException {
    // Start a transaction
    DistributedTransaction tx = manager.start();
    try {
        // Retrieve the current balance for id
        Get get = new Get(new Key(ID, id));
        Optional<Result> result = tx.get(get);
        // Calculate the balance
        int balance = amount;
        if (result.isPresent()) {
            int current = result.get().getValue(BALANCE).get().getAsInt();
            balance += current;
        }
        // Update the balance
        Put put = new Put(new Key(ID, id)).withValue(BALANCE, balance);
        tx.put(put);
        // Commit the transaction (records are automatically recovered in case of failure)
        tx.commit();
    } catch (Exception e) {
        tx.abort();
        throw e;
    }
}

Example 3 with TransactionException

use of com.scalar.db.exception.transaction.TransactionException in project scalardb by scalar-labs.

the class DistributedTransactionIntegrationTestBase method scan_ScanAllWithProjectionsGiven_ShouldRetrieveSpecifiedValues.

@Test
public void scan_ScanAllWithProjectionsGiven_ShouldRetrieveSpecifiedValues() throws TransactionException {
    // Arrange
    populateRecords();
    DistributedTransaction transaction = manager.start();
    ScanAll scanAll = prepareScanAll().withProjection(ACCOUNT_TYPE).withProjection(BALANCE);
    // Act
    List<Result> results = transaction.scan(scanAll);
    transaction.commit();
    // Assert
    List<ExpectedResult> expectedResults = new ArrayList<>();
    IntStream.range(0, NUM_ACCOUNTS).forEach(i -> IntStream.range(0, NUM_TYPES).forEach(j -> {
        ExpectedResultBuilder erBuilder = new ExpectedResultBuilder().clusteringKey(Key.ofInt(ACCOUNT_TYPE, j)).nonKeyColumns(ImmutableList.of(IntColumn.of(BALANCE, INITIAL_BALANCE)));
        expectedResults.add(erBuilder.build());
    }));
    assertResultsContainsExactlyInAnyOrder(results, expectedResults);
}

Example 4 with TransactionException

use of com.scalar.db.exception.transaction.TransactionException in project scalardb by scalar-labs.

the class TwoPhaseCommitTransactionIntegrationTestBase method scan_ScanAllWithProjectionsGiven_ShouldRetrieveSpecifiedValues.

@Test
public void scan_ScanAllWithProjectionsGiven_ShouldRetrieveSpecifiedValues() throws TransactionException {
    // Arrange
    populateRecords();
    TwoPhaseCommitTransaction transaction = manager.start();
    ScanAll scanAll = prepareScanAll().withProjection(ACCOUNT_TYPE).withProjection(BALANCE);
    // Act
    List<Result> results = transaction.scan(scanAll);
    transaction.prepare();
    transaction.validate();
    transaction.commit();
    // Assert
    List<ExpectedResult> expectedResults = new ArrayList<>();
    IntStream.range(0, NUM_ACCOUNTS).forEach(i -> IntStream.range(0, NUM_TYPES).forEach(j -> {
        ExpectedResultBuilder erBuilder = new ExpectedResultBuilder().clusteringKey(Key.ofInt(ACCOUNT_TYPE, j)).nonKeyColumns(ImmutableList.of(IntColumn.of(BALANCE, INITIAL_BALANCE)));
        expectedResults.add(erBuilder.build());
    }));
    assertResultsContainsExactlyInAnyOrder(results, expectedResults);
    results.forEach(result -> {
        assertThat(result.contains(ACCOUNT_ID)).isFalse();
        assertThat(result.contains(SOME_COLUMN)).isFalse();
    });
}

Example 5 with TransactionException

use of com.scalar.db.exception.transaction.TransactionException in project scalardb by scalar-labs.

the class TwoPhaseCommitTransactionIntegrationTestBase method populateRecords.

private void populateRecords() throws TransactionException {
    TwoPhaseCommitTransaction transaction = manager.start();
    IntStream.range(0, NUM_ACCOUNTS).forEach(i -> IntStream.range(0, NUM_TYPES).forEach(j -> {
        Key partitionKey = new Key(ACCOUNT_ID, i);
        Key clusteringKey = new Key(ACCOUNT_TYPE, j);
        Put put = new Put(partitionKey, clusteringKey).forNamespace(namespace).forTable(TABLE).withIntValue(BALANCE, INITIAL_BALANCE).withIntValue(SOME_COLUMN, i * j);
        try {
            transaction.put(put);
        } catch (CrudException e) {
            throw new RuntimeException(e);
        }
    }));
    transaction.prepare();
    transaction.validate();
    transaction.commit();
}