| /* |
| * 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.equalTo; |
| import static org.hamcrest.Matchers.hasSize; |
| import static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertThat; |
| |
| import java.io.Serializable; |
| import java.util.List; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import org.apache.beam.runners.direct.ViewOverrideFactory.WriteView; |
| import org.apache.beam.sdk.Pipeline.PipelineVisitor; |
| import org.apache.beam.sdk.runners.AppliedPTransform; |
| import org.apache.beam.sdk.runners.PTransformOverrideFactory.PTransformReplacement; |
| import org.apache.beam.sdk.runners.TransformHierarchy.Node; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.transforms.View; |
| import org.apache.beam.sdk.transforms.View.CreatePCollectionView; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.PCollectionView; |
| import org.apache.beam.sdk.values.TupleTag; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link ViewOverrideFactory}. */ |
| @RunWith(JUnit4.class) |
| public class ViewOverrideFactoryTest implements Serializable { |
| @Rule |
| public transient TestPipeline p = TestPipeline.create().enableAbandonedNodeEnforcement(false); |
| |
| private transient ViewOverrideFactory<Integer, List<Integer>> factory = |
| new ViewOverrideFactory<>(); |
| |
| @Test |
| public void replacementGetViewReturnsOriginal() { |
| final PCollection<Integer> ints = p.apply("CreateContents", Create.of(1, 2, 3)); |
| final PCollectionView<List<Integer>> view = ints.apply(View.asList()); |
| PTransformReplacement<PCollection<Integer>, PCollection<Integer>> replacement = |
| factory.getReplacementTransform( |
| AppliedPTransform.of( |
| "foo", ints.expand(), view.expand(), CreatePCollectionView.of(view), p)); |
| ints.apply(replacement.getTransform()); |
| final AtomicBoolean writeViewVisited = new AtomicBoolean(); |
| p.traverseTopologically( |
| new PipelineVisitor.Defaults() { |
| @Override |
| public void visitPrimitiveTransform(Node node) { |
| if (node.getTransform() instanceof WriteView) { |
| assertThat( |
| "There should only be one WriteView primitive in the graph", |
| writeViewVisited.getAndSet(true), |
| is(false)); |
| PCollectionView<?> replacementView = ((WriteView) node.getTransform()).getView(); |
| |
| // replacementView.getPCollection() is null, but that is not a requirement |
| // so not asserted one way or the other |
| assertThat( |
| replacementView.getTagInternal(), equalTo((TupleTag) view.getTagInternal())); |
| assertThat(replacementView.getViewFn(), equalTo(view.getViewFn())); |
| assertThat(replacementView.getWindowMappingFn(), equalTo(view.getWindowMappingFn())); |
| assertThat(node.getInputs().entrySet(), hasSize(1)); |
| } |
| } |
| }); |
| |
| assertThat(writeViewVisited.get(), is(true)); |
| } |
| } |