| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.beam.fn.harness.data; |
| |
| import static org.hamcrest.Matchers.contains; |
| import static org.junit.Assert.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.powermock.api.mockito.PowerMockito.mockStatic; |
| |
| import org.apache.beam.runners.core.metrics.ExecutionStateTracker; |
| import org.apache.beam.runners.core.metrics.MetricsContainerStepMap; |
| import org.apache.beam.sdk.fn.data.FnDataReceiver; |
| import org.apache.beam.sdk.metrics.MetricsEnvironment; |
| import org.apache.beam.sdk.util.WindowedValue; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.powermock.api.mockito.PowerMockito; |
| import org.powermock.core.classloader.annotations.PrepareForTest; |
| import org.powermock.modules.junit4.PowerMockRunner; |
| |
| /** Tests for {@link PCollectionConsumerRegistryTest}. */ |
| @RunWith(PowerMockRunner.class) |
| @PrepareForTest(MetricsEnvironment.class) |
| public class PCollectionConsumerRegistryTest { |
| |
| @Rule public ExpectedException expectedException = ExpectedException.none(); |
| |
| /** |
| * Test that the counter increments only once when multiple consumers of same pCollection read the |
| * same element. |
| */ |
| @Test |
| public void multipleConsumersSamePCollection() throws Exception { |
| final String pCollectionA = "pCollectionA"; |
| final String pTransformId = "pTransformId"; |
| |
| MetricsContainerStepMap metricsContainerRegistry = new MetricsContainerStepMap(); |
| PCollectionConsumerRegistry consumers = |
| new PCollectionConsumerRegistry( |
| metricsContainerRegistry, mock(ExecutionStateTracker.class)); |
| FnDataReceiver<WindowedValue<String>> consumerA1 = mock(FnDataReceiver.class); |
| FnDataReceiver<WindowedValue<String>> consumerA2 = mock(FnDataReceiver.class); |
| |
| consumers.register(pCollectionA, pTransformId, consumerA1); |
| consumers.register(pCollectionA, pTransformId, consumerA2); |
| |
| FnDataReceiver<WindowedValue<String>> wrapperConsumer = |
| (FnDataReceiver<WindowedValue<String>>) |
| (FnDataReceiver) consumers.getMultiplexingConsumer(pCollectionA); |
| |
| WindowedValue<String> element = WindowedValue.valueInGlobalWindow("elem"); |
| int numElements = 20; |
| for (int i = 0; i < numElements; i++) { |
| wrapperConsumer.accept(element); |
| } |
| |
| // Check that the underlying consumers are each invoked per element. |
| verify(consumerA1, times(numElements)).accept(element); |
| verify(consumerA2, times(numElements)).accept(element); |
| assertThat(consumers.keySet(), contains(pCollectionA)); |
| } |
| |
| @Test |
| public void throwsOnRegisteringAfterMultiplexingConsumerWasInitialized() throws Exception { |
| final String pCollectionA = "pCollectionA"; |
| final String pTransformId = "pTransformId"; |
| |
| MetricsContainerStepMap metricsContainerRegistry = new MetricsContainerStepMap(); |
| PCollectionConsumerRegistry consumers = |
| new PCollectionConsumerRegistry( |
| metricsContainerRegistry, mock(ExecutionStateTracker.class)); |
| FnDataReceiver<WindowedValue<String>> consumerA1 = mock(FnDataReceiver.class); |
| FnDataReceiver<WindowedValue<String>> consumerA2 = mock(FnDataReceiver.class); |
| |
| consumers.register(pCollectionA, pTransformId, consumerA1); |
| consumers.getMultiplexingConsumer(pCollectionA); |
| |
| expectedException.expect(RuntimeException.class); |
| expectedException.expectMessage("cannot be register()-d after"); |
| consumers.register(pCollectionA, pTransformId, consumerA2); |
| } |
| |
| @Test |
| public void testScopedMetricContainerInvokedUponAcceptingElement() throws Exception { |
| mockStatic(MetricsEnvironment.class); |
| final String pCollectionA = "pCollectionA"; |
| |
| MetricsContainerStepMap metricsContainerRegistry = new MetricsContainerStepMap(); |
| PCollectionConsumerRegistry consumers = |
| new PCollectionConsumerRegistry( |
| metricsContainerRegistry, mock(ExecutionStateTracker.class)); |
| FnDataReceiver<WindowedValue<String>> consumerA1 = mock(FnDataReceiver.class); |
| FnDataReceiver<WindowedValue<String>> consumerA2 = mock(FnDataReceiver.class); |
| |
| consumers.register("pCollectionA", "pTransformA", consumerA1); |
| consumers.register("pCollectionA", "pTransformB", consumerA2); |
| |
| FnDataReceiver<WindowedValue<String>> wrapperConsumer = |
| (FnDataReceiver<WindowedValue<String>>) |
| (FnDataReceiver) consumers.getMultiplexingConsumer(pCollectionA); |
| |
| WindowedValue<String> element = WindowedValue.valueInGlobalWindow("elem"); |
| wrapperConsumer.accept(element); |
| |
| // Verify that static scopedMetricsContainer is called with pTransformA's container. |
| PowerMockito.verifyStatic(MetricsEnvironment.class, times(1)); |
| MetricsEnvironment.scopedMetricsContainer(metricsContainerRegistry.getContainer("pTransformA")); |
| |
| // Verify that static scopedMetricsContainer is called with pTransformB's container. |
| PowerMockito.verifyStatic(MetricsEnvironment.class, times(1)); |
| MetricsEnvironment.scopedMetricsContainer(metricsContainerRegistry.getContainer("pTransformB")); |
| } |
| } |