Examples with CommitTimestampFuture com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture used on opensource projects

Example 1 with CommitTimestampFuture

use of com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture in project java-spanner by googleapis.

the class AsyncTransactionManagerTest method asyncTransactionManagerUpdate.

@Test
public void asyncTransactionManagerUpdate() throws Exception {
    try (AsyncTransactionManager manager = client().transactionManagerAsync()) {
        TransactionContextFuture transactionContextFuture = manager.beginAsync();
        while (true) {
            try {
                AsyncTransactionStep<Void, Long> updateCount = transactionContextFuture.then((transactionContext, ignored) -> transactionContext.executeUpdateAsync(UPDATE_STATEMENT), executor);
                CommitTimestampFuture commitTimestamp = updateCount.commitAsync();
                assertThat(updateCount.get()).isEqualTo(UPDATE_COUNT);
                assertThat(commitTimestamp.get()).isNotNull();
                break;
            } catch (AbortedException e) {
                transactionContextFuture = manager.resetForRetryAsync();
            }
        }
    }
}

Example 2 with CommitTimestampFuture

use of com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture in project java-spanner by googleapis.

the class AsyncTransactionManagerTest method asyncTransactionManagerQuery.

@Test
public void asyncTransactionManagerQuery() throws Exception {
    mockSpanner.putStatementResult(StatementResult.query(Statement.of("SELECT FirstName FROM Singers WHERE ID=1"), MockSpannerTestUtil.READ_FIRST_NAME_SINGERS_RESULTSET));
    final long singerId = 1L;
    try (AsyncTransactionManager manager = client().transactionManagerAsync()) {
        TransactionContextFuture transactionContextFuture = manager.beginAsync();
        while (true) {
            final String column = "FirstName";
            CommitTimestampFuture commitTimestamp = transactionContextFuture.then((transactionContext, ignored) -> transactionContext.readRowAsync("Singers", Key.of(singerId), Collections.singleton(column)), executor).then((transaction, input) -> {
                String name = input.getString(column);
                return transaction.bufferAsync(Mutation.newUpdateBuilder("Singers").set(column).to(name.toUpperCase()).build());
            }, executor).commitAsync();
            try {
                commitTimestamp.get();
                break;
            } catch (AbortedException e) {
                transactionContextFuture = manager.resetForRetryAsync();
            }
        }
    }
}

Example 3 with CommitTimestampFuture

use of com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture in project java-spanner by googleapis.

the class AsyncTransactionManagerTest method asyncTransactionManagerIsNonBlocking.

@Test
public void asyncTransactionManagerIsNonBlocking() throws Exception {
    mockSpanner.freeze();
    try (AsyncTransactionManager manager = clientWithEmptySessionPool().transactionManagerAsync()) {
        TransactionContextFuture transactionContextFuture = manager.beginAsync();
        while (true) {
            try {
                AsyncTransactionStep<Void, Long> updateCount = transactionContextFuture.then((transactionContext, ignored) -> transactionContext.executeUpdateAsync(UPDATE_STATEMENT), executor);
                CommitTimestampFuture commitTimestamp = updateCount.commitAsync();
                mockSpanner.unfreeze();
                assertThat(updateCount.get(10L, TimeUnit.SECONDS)).isEqualTo(UPDATE_COUNT);
                assertThat(commitTimestamp.get(10L, TimeUnit.SECONDS)).isNotNull();
                break;
            } catch (AbortedException e) {
                transactionContextFuture = manager.resetForRetryAsync();
            }
        }
    }
}

Example 4 with CommitTimestampFuture

use of com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture in project java-spanner by googleapis.

the class AsyncTransactionManagerTest method asyncTransactionManagerCommitAborted.

@Test
public void asyncTransactionManagerCommitAborted() throws Exception {
    final AtomicInteger attempt = new AtomicInteger();
    CountDownLatch abortedLatch = new CountDownLatch(1);
    try (AsyncTransactionManager manager = clientWithEmptySessionPool().transactionManagerAsync()) {
        TransactionContextFuture transactionContextFuture = manager.beginAsync();
        while (true) {
            try {
                attempt.incrementAndGet();
                AsyncTransactionStep<Void, Long> updateCount = transactionContextFuture.then((transaction, ignored) -> transaction.executeUpdateAsync(UPDATE_STATEMENT), executor);
                updateCount.then((transaction, ignored) -> {
                    if (attempt.get() == 1) {
                        mockSpanner.abortTransaction(transaction);
                        abortedLatch.countDown();
                    }
                    return ApiFutures.immediateFuture(null);
                }, executor);
                abortedLatch.await(10L, TimeUnit.SECONDS);
                CommitTimestampFuture commitTimestamp = updateCount.commitAsync();
                assertThat(updateCount.get()).isEqualTo(UPDATE_COUNT);
                assertThat(commitTimestamp.get()).isNotNull();
                assertThat(attempt.get()).isEqualTo(2);
                break;
            } catch (AbortedException e) {
                transactionContextFuture = manager.resetForRetryAsync();
            }
        }
    }
}

Example 5 with CommitTimestampFuture

use of com.google.cloud.spanner.AsyncTransactionManager.CommitTimestampFuture in project java-spanner by googleapis.

the class AsyncTransactionManagerTest method asyncTransactionManagerUpdateAborted.

@Test
public void asyncTransactionManagerUpdateAborted() throws Exception {
    try (AsyncTransactionManager manager = client().transactionManagerAsync()) {
        // Temporarily set the result of the update to 2 rows.
        mockSpanner.putStatementResult(StatementResult.update(UPDATE_STATEMENT, UPDATE_COUNT + 1L));
        final AtomicInteger attempt = new AtomicInteger();
        TransactionContextFuture transactionContextFuture = manager.beginAsync();
        while (true) {
            try {
                CommitTimestampFuture commitTimestampFuture = transactionContextFuture.then((ignored1, ignored2) -> {
                    if (attempt.incrementAndGet() == 1) {
                        // Abort the first attempt.
                        mockSpanner.abortNextStatement();
                    } else {
                        // Set the result of the update statement back to 1 row.
                        mockSpanner.putStatementResult(StatementResult.update(UPDATE_STATEMENT, UPDATE_COUNT));
                    }
                    return ApiFutures.immediateFuture(null);
                }, executor).then((transactionContext, ignored) -> transactionContext.executeUpdateAsync(UPDATE_STATEMENT), executor).commitAsync();
                assertThat(commitTimestampFuture.get()).isNotNull();
                break;
            } catch (AbortedException e) {
                transactionContextFuture = manager.resetForRetryAsync();
            }
        }
        assertThat(attempt.get()).isEqualTo(2);
    } finally {
        mockSpanner.putStatementResult(StatementResult.update(UPDATE_STATEMENT, UPDATE_COUNT));
    }
}