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* distribution.
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* this software without specific prior written permission.
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package nl.topicus.jdbc.shaded.com.google.api.gax.rpc;
import nl.topicus.jdbc.shaded.com.google.api.core.ApiFuture;
import nl.topicus.jdbc.shaded.com.google.api.gax.batching.BatchingSettings;
import nl.topicus.jdbc.shaded.com.google.api.gax.batching.FlowControlSettings;
import nl.topicus.jdbc.shaded.com.google.api.gax.batching.FlowController;
import nl.topicus.jdbc.shaded.com.google.api.gax.batching.FlowController.LimitExceededBehavior;
import nl.topicus.jdbc.shaded.com.google.api.gax.rpc.testing.FakeBatchableApi;
import nl.topicus.jdbc.shaded.com.google.api.gax.rpc.testing.FakeBatchableApi.LabeledIntList;
import nl.topicus.jdbc.shaded.com.google.api.gax.rpc.testing.FakeBatchableApi.SquarerBatchingDescriptor;
import nl.topicus.jdbc.shaded.com.google.api.gax.rpc.testing.FakeCallContext;
import nl.topicus.jdbc.shaded.com.google.common.truth.Truth;
import java.util.List;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import nl.topicus.jdbc.shaded.org.threeten.bp.Duration;
@RunWith(JUnit4.class)
public class BatchingCallableTest {
private ScheduledExecutorService batchingExecutor;
@Before
public void setUp() {
batchingExecutor = new ScheduledThreadPoolExecutor(2);
}
@After
public void tearDown() {
batchingExecutor.shutdownNow();
}
@Test
public void testBatchedCall() throws Exception {
BatchingSettings batchingSettings =
BatchingSettings.newBuilder()
.setDelayThreshold(Duration.ofSeconds(10))
.setElementCountThreshold(2L)
.setRequestByteThreshold(1000L)
.build();
FlowControlSettings flowControlSettings =
FlowControlSettings.newBuilder()
.setLimitExceededBehavior(LimitExceededBehavior.Ignore)
.build();
FlowController flowController = new FlowController(flowControlSettings);
BatcherFactory> batcherFactory =
new BatcherFactory<>(
new SquarerBatchingDescriptor(), batchingSettings, batchingExecutor, flowController);
BatchingCallable> batchingCallable =
new BatchingCallable<>(
FakeBatchableApi.callLabeledIntSquarer,
FakeBatchableApi.SQUARER_BATCHING_DESC,
batcherFactory);
LabeledIntList request1 = new LabeledIntList("label", 2);
ApiFuture> future1 =
batchingCallable.futureCall(request1, FakeCallContext.createDefault());
// Assume it won't take 10 seconds (the batching delay threshold) to check the first future
Truth.assertThat(future1.isDone()).isFalse();
LabeledIntList request2 = new LabeledIntList("label", 3);
ApiFuture> future2 =
batchingCallable.futureCall(request2, FakeCallContext.createDefault());
List response1 = future1.get();
List response2 = future2.get();
Truth.assertThat(response1.size()).isEqualTo(1);
Truth.assertThat(response1.get(0)).isEqualTo(2 * 2);
Truth.assertThat(response2.size()).isEqualTo(1);
Truth.assertThat(response2.get(0)).isEqualTo(3 * 3);
}
@Test
public void testUnbatchedCall() throws Exception {
BatchingSettings batchingSettings = BatchingSettings.newBuilder().setIsEnabled(false).build();
FlowControlSettings flowControlSettings =
FlowControlSettings.newBuilder()
.setLimitExceededBehavior(LimitExceededBehavior.Ignore)
.build();
FlowController flowController = new FlowController(flowControlSettings);
BatcherFactory> batcherFactory =
new BatcherFactory<>(
new SquarerBatchingDescriptor(), batchingSettings, batchingExecutor, flowController);
BatchingCallable> batchingCallable =
new BatchingCallable<>(
FakeBatchableApi.callLabeledIntSquarer,
FakeBatchableApi.SQUARER_BATCHING_DESC,
batcherFactory);
LabeledIntList request1 = new LabeledIntList("label", 2);
ApiFuture> future1 =
batchingCallable.futureCall(request1, FakeCallContext.createDefault());
List response1 = future1.get();
Truth.assertThat(response1.size()).isEqualTo(1);
Truth.assertThat(response1.get(0)).isEqualTo(2 * 2);
}
}