| /* |
| * 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.runners.direct; |
| |
| import static org.hamcrest.Matchers.containsInAnyOrder; |
| import static org.hamcrest.Matchers.emptyIterable; |
| import static org.junit.Assert.assertThat; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.when; |
| |
| import org.apache.beam.sdk.coders.VarIntCoder; |
| import org.apache.beam.sdk.runners.AppliedPTransform; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.transforms.Flatten; |
| import org.apache.beam.sdk.transforms.windowing.BoundedWindow; |
| import org.apache.beam.sdk.transforms.windowing.PaneInfo; |
| import org.apache.beam.sdk.util.WindowedValue; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.PCollectionList; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables; |
| import org.hamcrest.Matchers; |
| import org.joda.time.Instant; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link FlattenEvaluatorFactory}. */ |
| @RunWith(JUnit4.class) |
| public class FlattenEvaluatorFactoryTest { |
| private BundleFactory bundleFactory = ImmutableListBundleFactory.create(); |
| |
| @Rule public TestPipeline p = TestPipeline.create().enableAbandonedNodeEnforcement(false); |
| |
| @Test |
| public void testFlattenInMemoryEvaluator() throws Exception { |
| PCollection<Integer> left = p.apply("left", Create.of(1, 2, 4)); |
| PCollection<Integer> right = p.apply("right", Create.of(-1, 2, -4)); |
| PCollectionList<Integer> list = PCollectionList.of(left).and(right); |
| |
| PCollection<Integer> flattened = list.apply(Flatten.pCollections()); |
| |
| CommittedBundle<Integer> leftBundle = bundleFactory.createBundle(left).commit(Instant.now()); |
| CommittedBundle<Integer> rightBundle = bundleFactory.createBundle(right).commit(Instant.now()); |
| |
| EvaluationContext context = mock(EvaluationContext.class); |
| |
| UncommittedBundle<Integer> flattenedLeftBundle = bundleFactory.createBundle(flattened); |
| UncommittedBundle<Integer> flattenedRightBundle = bundleFactory.createBundle(flattened); |
| |
| when(context.createBundle(flattened)).thenReturn(flattenedLeftBundle, flattenedRightBundle); |
| |
| FlattenEvaluatorFactory factory = new FlattenEvaluatorFactory(context); |
| AppliedPTransform<?, ?, ?> flattenedProducer = DirectGraphs.getProducer(flattened); |
| TransformEvaluator<Integer> leftSideEvaluator = |
| factory.forApplication(flattenedProducer, leftBundle); |
| TransformEvaluator<Integer> rightSideEvaluator = |
| factory.forApplication(flattenedProducer, rightBundle); |
| |
| leftSideEvaluator.processElement(WindowedValue.valueInGlobalWindow(1)); |
| rightSideEvaluator.processElement(WindowedValue.valueInGlobalWindow(-1)); |
| leftSideEvaluator.processElement( |
| WindowedValue.timestampedValueInGlobalWindow(2, new Instant(1024))); |
| leftSideEvaluator.processElement(WindowedValue.valueInGlobalWindow(4, PaneInfo.NO_FIRING)); |
| rightSideEvaluator.processElement( |
| WindowedValue.valueInGlobalWindow(2, PaneInfo.ON_TIME_AND_ONLY_FIRING)); |
| rightSideEvaluator.processElement( |
| WindowedValue.timestampedValueInGlobalWindow(-4, new Instant(-4096))); |
| |
| TransformResult<Integer> rightSideResult = rightSideEvaluator.finishBundle(); |
| TransformResult<Integer> leftSideResult = leftSideEvaluator.finishBundle(); |
| |
| assertThat(rightSideResult.getOutputBundles(), Matchers.contains(flattenedRightBundle)); |
| assertThat( |
| rightSideResult.getTransform(), |
| Matchers.<AppliedPTransform<?, ?, ?>>equalTo(flattenedProducer)); |
| assertThat(leftSideResult.getOutputBundles(), Matchers.contains(flattenedLeftBundle)); |
| assertThat( |
| leftSideResult.getTransform(), |
| Matchers.<AppliedPTransform<?, ?, ?>>equalTo(flattenedProducer)); |
| |
| assertThat( |
| flattenedLeftBundle.commit(Instant.now()).getElements(), |
| containsInAnyOrder( |
| WindowedValue.timestampedValueInGlobalWindow(2, new Instant(1024)), |
| WindowedValue.valueInGlobalWindow(4, PaneInfo.NO_FIRING), |
| WindowedValue.valueInGlobalWindow(1))); |
| assertThat( |
| flattenedRightBundle.commit(Instant.now()).getElements(), |
| containsInAnyOrder( |
| WindowedValue.valueInGlobalWindow(2, PaneInfo.ON_TIME_AND_ONLY_FIRING), |
| WindowedValue.timestampedValueInGlobalWindow(-4, new Instant(-4096)), |
| WindowedValue.valueInGlobalWindow(-1))); |
| } |
| |
| @Test |
| public void testFlattenInMemoryEvaluatorWithEmptyPCollectionList() throws Exception { |
| PCollectionList<Integer> list = PCollectionList.empty(p); |
| |
| PCollection<Integer> flattened = list.apply(Flatten.pCollections()); |
| flattened.setCoder(VarIntCoder.of()); |
| |
| EvaluationContext evaluationContext = mock(EvaluationContext.class); |
| when(evaluationContext.createBundle(flattened)) |
| .thenReturn(bundleFactory.createBundle(flattened)); |
| |
| FlattenEvaluatorFactory factory = new FlattenEvaluatorFactory(evaluationContext); |
| AppliedPTransform<?, ?, ?> flattendProducer = DirectGraphs.getProducer(flattened); |
| TransformEvaluator<Integer> emptyEvaluator = |
| factory.forApplication( |
| flattendProducer, |
| bundleFactory.createRootBundle().commit(BoundedWindow.TIMESTAMP_MAX_VALUE)); |
| |
| TransformResult<Integer> leftSideResult = emptyEvaluator.finishBundle(); |
| |
| CommittedBundle<?> outputBundle = |
| Iterables.getOnlyElement(leftSideResult.getOutputBundles()).commit(Instant.now()); |
| assertThat(outputBundle.getElements(), emptyIterable()); |
| assertThat( |
| leftSideResult.getTransform(), |
| Matchers.<AppliedPTransform<?, ?, ?>>equalTo(flattendProducer)); |
| } |
| } |