use of com.google.cloud.spanner.AsyncResultSet.CallbackResponse in project java-spanner by googleapis.
the class ConnectionAsyncApiAbortedTest method testUpdateAndQueryAbortedMidway.
@Test
public void testUpdateAndQueryAbortedMidway() throws InterruptedException {
mockSpanner.setExecuteStreamingSqlExecutionTime(SimulatedExecutionTime.ofStreamException(mockSpanner.createAbortedException(ByteString.copyFromUtf8("test")), RANDOM_RESULT_SET_ROW_COUNT / 2));
final RetryCounter counter = new RetryCounter();
try (Connection connection = createConnection(counter)) {
assertThat(counter.retryCount).isEqualTo(0);
final SettableApiFuture<Long> rowCount = SettableApiFuture.create();
final CountDownLatch updateLatch = new CountDownLatch(1);
final CountDownLatch queryLatch = new CountDownLatch(1);
ApiFuture<Void> finished;
try (AsyncResultSet rs = connection.executeQueryAsync(SELECT_RANDOM_STATEMENT, Options.bufferRows(RANDOM_RESULT_SET_ROW_COUNT / 2 - 1))) {
finished = rs.setCallback(singleThreadedExecutor, new ReadyCallback() {
long count;
@Override
public CallbackResponse cursorReady(AsyncResultSet resultSet) {
// Indicate that the query has been executed.
queryLatch.countDown();
try {
// Wait until the update is on its way.
updateLatch.await(10L, TimeUnit.SECONDS);
while (true) {
switch(resultSet.tryNext()) {
case OK:
count++;
break;
case DONE:
rowCount.set(count);
return CallbackResponse.DONE;
case NOT_READY:
return CallbackResponse.CONTINUE;
}
}
} catch (InterruptedException e) {
throw SpannerExceptionFactory.propagateInterrupt(e);
}
}
});
}
// Wait until the query has actually executed.
queryLatch.await(10L, TimeUnit.SECONDS);
ApiFuture<Long> updateCount = connection.executeUpdateAsync(INSERT_STATEMENT);
updateCount.addListener(updateLatch::countDown, MoreExecutors.directExecutor());
// We should not commit before the AsyncResultSet has finished.
assertThat(get(finished)).isNull();
ApiFuture<Void> commit = connection.commitAsync();
assertThat(get(rowCount)).isEqualTo(RANDOM_RESULT_SET_ROW_COUNT);
assertThat(get(updateCount)).isEqualTo(UPDATE_COUNT);
assertThat(get(commit)).isNull();
assertThat(counter.retryCount).isEqualTo(1);
// Verify the order of the statements on the server.
List<? extends AbstractMessage> requests = Lists.newArrayList(Collections2.filter(mockSpanner.getRequests(), input -> input instanceof ExecuteSqlRequest));
// The entire transaction should be retried.
assertThat(requests).hasSize(4);
assertThat(((ExecuteSqlRequest) requests.get(0)).getSeqno()).isEqualTo(1L);
assertThat(((ExecuteSqlRequest) requests.get(0)).getSql()).isEqualTo(SELECT_RANDOM_STATEMENT.getSql());
assertThat(((ExecuteSqlRequest) requests.get(1)).getSeqno()).isEqualTo(2L);
assertThat(((ExecuteSqlRequest) requests.get(1)).getSql()).isEqualTo(INSERT_STATEMENT.getSql());
assertThat(((ExecuteSqlRequest) requests.get(2)).getSeqno()).isEqualTo(1L);
assertThat(((ExecuteSqlRequest) requests.get(2)).getSql()).isEqualTo(SELECT_RANDOM_STATEMENT.getSql());
assertThat(((ExecuteSqlRequest) requests.get(3)).getSeqno()).isEqualTo(2L);
assertThat(((ExecuteSqlRequest) requests.get(3)).getSql()).isEqualTo(INSERT_STATEMENT.getSql());
}
}
use of com.google.cloud.spanner.AsyncResultSet.CallbackResponse in project java-spanner by googleapis.
the class ConnectionAsyncApiAbortedTest method testQueriesAbortedMidway_ResultsChanged.
@Test
public void testQueriesAbortedMidway_ResultsChanged() {
mockSpanner.setExecuteStreamingSqlExecutionTime(SimulatedExecutionTime.ofStreamException(mockSpanner.createAbortedException(ByteString.copyFromUtf8("test")), RANDOM_RESULT_SET_ROW_COUNT - 1));
final Statement statement = Statement.of("SELECT * FROM TEST_TABLE");
final RandomResultSetGenerator generator = new RandomResultSetGenerator(RANDOM_RESULT_SET_ROW_COUNT - 10);
mockSpanner.putStatementResult(StatementResult.query(statement, generator.generate()));
final CountDownLatch latch = new CountDownLatch(1);
final RetryCounter counter = new RetryCounter();
try (Connection connection = createConnection(counter)) {
ApiFuture<Void> res1;
try (AsyncResultSet rs = connection.executeQueryAsync(SELECT_RANDOM_STATEMENT, Options.bufferRows(5))) {
res1 = rs.setCallback(multiThreadedExecutor, resultSet -> {
try {
latch.await(10L, TimeUnit.SECONDS);
while (true) {
switch(resultSet.tryNext()) {
case OK:
break;
case DONE:
return CallbackResponse.DONE;
case NOT_READY:
return CallbackResponse.CONTINUE;
}
}
} catch (Throwable t) {
throw SpannerExceptionFactory.asSpannerException(t);
}
});
}
try (AsyncResultSet rs = connection.executeQueryAsync(statement, Options.bufferRows(5))) {
rs.setCallback(multiThreadedExecutor, new ReadyCallback() {
boolean replaced;
@Override
public CallbackResponse cursorReady(AsyncResultSet resultSet) {
if (!replaced) {
// Replace the result of the query on the server after the first execution.
mockSpanner.putStatementResult(StatementResult.query(statement, generator.generate()));
replaced = true;
}
while (true) {
switch(resultSet.tryNext()) {
case OK:
break;
case DONE:
latch.countDown();
return CallbackResponse.DONE;
case NOT_READY:
return CallbackResponse.CONTINUE;
}
}
}
});
}
try {
get(res1);
fail("Missing expected exception");
} catch (AbortedDueToConcurrentModificationException e) {
assertThat(counter.retryCount).isEqualTo(1);
}
}
}
use of com.google.cloud.spanner.AsyncResultSet.CallbackResponse in project java-spanner by googleapis.
the class ConnectionAsyncApiTest method testReadWriteMultipleAsyncStatements.
@Test
public void testReadWriteMultipleAsyncStatements() {
try (Connection connection = createConnection()) {
assertThat(connection.isAutocommit()).isFalse();
ApiFuture<Long> update1 = connection.executeUpdateAsync(INSERT_STATEMENT);
ApiFuture<Long> update2 = connection.executeUpdateAsync(INSERT_STATEMENT);
ApiFuture<long[]> batch = connection.executeBatchUpdateAsync(ImmutableList.of(INSERT_STATEMENT, INSERT_STATEMENT));
final SettableApiFuture<Integer> rowCount = SettableApiFuture.create();
try (AsyncResultSet rs = connection.executeQueryAsync(SELECT_RANDOM_STATEMENT)) {
rs.setCallback(executor, new ReadyCallback() {
int count = 0;
@Override
public CallbackResponse cursorReady(AsyncResultSet resultSet) {
try {
while (true) {
switch(resultSet.tryNext()) {
case DONE:
rowCount.set(count);
return CallbackResponse.DONE;
case NOT_READY:
return CallbackResponse.CONTINUE;
case OK:
count++;
}
}
} catch (SpannerException e) {
rowCount.setException(e);
return CallbackResponse.DONE;
}
}
});
}
ApiFuture<Void> commit = connection.commitAsync();
assertThat(get(update1)).isEqualTo(UPDATE_COUNT);
assertThat(get(update2)).isEqualTo(UPDATE_COUNT);
assertThat(get(batch)).asList().containsExactly(1L, 1L);
assertThat(get(rowCount)).isEqualTo(RANDOM_RESULT_SET_ROW_COUNT);
assertNull(get(commit));
// Get the last commit request.
CommitRequest commitRequest = mockSpanner.getRequestsOfType(CommitRequest.class).stream().reduce((first, second) -> second).get();
// Verify the order of the statements on the server.
List<? extends AbstractMessage> requests = Lists.newArrayList(Collections2.filter(mockSpanner.getRequests(), input -> (input instanceof ExecuteSqlRequest && ((ExecuteSqlRequest) input).getSession().equals(commitRequest.getSession())) || (input instanceof ExecuteBatchDmlRequest && ((ExecuteBatchDmlRequest) input).getSession().equals(commitRequest.getSession()))));
assertThat(requests).hasSize(4);
assertThat(requests.get(0)).isInstanceOf(ExecuteSqlRequest.class);
assertThat(((ExecuteSqlRequest) requests.get(0)).getSeqno()).isEqualTo(1L);
assertThat(requests.get(1)).isInstanceOf(ExecuteSqlRequest.class);
assertThat(((ExecuteSqlRequest) requests.get(1)).getSeqno()).isEqualTo(2L);
assertThat(requests.get(2)).isInstanceOf(ExecuteBatchDmlRequest.class);
assertThat(((ExecuteBatchDmlRequest) requests.get(2)).getSeqno()).isEqualTo(3L);
assertThat(requests.get(3)).isInstanceOf(ExecuteSqlRequest.class);
assertThat(((ExecuteSqlRequest) requests.get(3)).getSeqno()).isEqualTo(4L);
}
}
use of com.google.cloud.spanner.AsyncResultSet.CallbackResponse in project java-spanner by googleapis.
the class ITAsyncExamplesTest method readAsync.
@Test
public void readAsync() throws Exception {
final SettableApiFuture<List<String>> future = SettableApiFuture.create();
try (AsyncResultSet rs = client.singleUse().readAsync(TABLE_NAME, KeySet.all(), ALL_COLUMNS)) {
rs.setCallback(executor, new ReadyCallback() {
final List<String> values = new LinkedList<>();
@Override
public CallbackResponse cursorReady(AsyncResultSet resultSet) {
try {
while (true) {
switch(resultSet.tryNext()) {
case DONE:
future.set(values);
return CallbackResponse.DONE;
case NOT_READY:
return CallbackResponse.CONTINUE;
case OK:
values.add(resultSet.getString("StringValue"));
break;
}
}
} catch (Throwable t) {
future.setException(t);
return CallbackResponse.DONE;
}
}
});
}
assertThat(future.get()).containsExactlyElementsIn(ALL_VALUES_IN_PK_ORDER);
}
use of com.google.cloud.spanner.AsyncResultSet.CallbackResponse in project grpc-gcp-java by GoogleCloudPlatform.
the class SpannerClient method singleReadAsync.
public ApiFuture<Void> singleReadAsync() {
final AsyncResultSet asyncResultSet = dbClient.singleUse().readAsync(TABLE_NAME, READ_KEY_SET, ALL_COLUMNS);
final ApiFuture<Void> readFuture = asyncResultSet.setCallback(executor, new ReadyCallback() {
@Override
public CallbackResponse cursorReady(AsyncResultSet resultSet) {
while (true) {
switch(resultSet.tryNext()) {
case OK:
// System.out.println(resultSet.getString("StringValue"));
break;
case NOT_READY:
return CallbackResponse.CONTINUE;
case DONE:
return CallbackResponse.DONE;
default:
throw new IllegalStateException();
}
}
}
});
return readFuture;
}
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