Examples with Batcher com.google.api.gax.batching.Batcher used on opensource projects

Example 1 with Batcher

use of com.google.api.gax.batching.Batcher in project java-bigtable by googleapis.

the class MetricsTracerTest method testBatchMutateRowsThrottledTime.

@Test
public void testBatchMutateRowsThrottledTime() throws Exception {
    FlowController flowController = Mockito.mock(FlowController.class);
    BatchingDescriptor batchingDescriptor = Mockito.mock(MutateRowsBatchingDescriptor.class);
    // Mock throttling
    final long throttled = 50;
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) throws Throwable {
            Thread.sleep(throttled);
            return null;
        }
    }).when(flowController).reserve(any(Long.class), any(Long.class));
    when(flowController.getMaxElementCountLimit()).thenReturn(null);
    when(flowController.getMaxRequestBytesLimit()).thenReturn(null);
    when(batchingDescriptor.countBytes(any())).thenReturn(1l);
    when(batchingDescriptor.newRequestBuilder(any())).thenCallRealMethod();
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) {
            @SuppressWarnings("unchecked") StreamObserver<MutateRowsResponse> observer = (StreamObserver<MutateRowsResponse>) invocation.getArguments()[1];
            observer.onNext(MutateRowsResponse.getDefaultInstance());
            observer.onCompleted();
            return null;
        }
    }).when(mockService).mutateRows(any(MutateRowsRequest.class), any());
    ApiCallContext defaultContext = GrpcCallContext.createDefault();
    Batcher batcher = new BatcherImpl(batchingDescriptor, stub.bulkMutateRowsCallable().withDefaultCallContext(defaultContext), BulkMutation.create(TABLE_ID), settings.getStubSettings().bulkMutateRowsSettings().getBatchingSettings(), Executors.newSingleThreadScheduledExecutor(), flowController, defaultContext);
    batcher.add(RowMutationEntry.create("key"));
    batcher.sendOutstanding();
    Thread.sleep(100);
    long throttledTimeMetric = StatsTestUtils.getAggregationValueAsLong(localStats, RpcViewConstants.BIGTABLE_BATCH_THROTTLED_TIME_VIEW, ImmutableMap.of(RpcMeasureConstants.BIGTABLE_OP, TagValue.create("Bigtable.MutateRows")), PROJECT_ID, INSTANCE_ID, APP_PROFILE_ID);
    assertThat(throttledTimeMetric).isAtLeast(throttled);
}

Example 2 with Batcher

use of com.google.api.gax.batching.Batcher in project java-bigtable by googleapis.

the class MetricsTracerTest method testBatchReadRowsThrottledTime.

@Test
public void testBatchReadRowsThrottledTime() throws Exception {
    doAnswer(new Answer() {

        @Override
        public Object answer(InvocationOnMock invocation) {
            @SuppressWarnings("unchecked") StreamObserver<ReadRowsResponse> observer = (StreamObserver<ReadRowsResponse>) invocation.getArguments()[1];
            observer.onNext(DEFAULT_READ_ROWS_RESPONSES);
            observer.onCompleted();
            return null;
        }
    }).when(mockService).readRows(any(ReadRowsRequest.class), any());
    try (Batcher batcher = stub.newBulkReadRowsBatcher(Query.create(TABLE_ID), GrpcCallContext.createDefault())) {
        batcher.add(ByteString.copyFromUtf8("row1"));
        batcher.sendOutstanding();
        // Give OpenCensus a chance to update the views asynchronously.
        Thread.sleep(100);
        long throttledTimeMetric = StatsTestUtils.getAggregationValueAsLong(localStats, RpcViewConstants.BIGTABLE_BATCH_THROTTLED_TIME_VIEW, ImmutableMap.of(RpcMeasureConstants.BIGTABLE_OP, TagValue.create("Bigtable.ReadRows")), PROJECT_ID, INSTANCE_ID, APP_PROFILE_ID);
        assertThat(throttledTimeMetric).isEqualTo(0);
    }
}