| /* |
| * 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.core.construction; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.junit.Assert.assertThat; |
| |
| import java.util.Collections; |
| import org.apache.beam.sdk.io.GenerateSequence; |
| 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.DoFn; |
| import org.apache.beam.sdk.transforms.ParDo; |
| import org.apache.beam.sdk.transforms.View; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.PCollectionView; |
| import org.apache.beam.sdk.values.PValue; |
| import org.apache.beam.sdk.values.TupleTag; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.rules.ExpectedException; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link PTransformReplacements}. */ |
| @RunWith(JUnit4.class) |
| public class PTransformReplacementsTest { |
| @Rule public TestPipeline pipeline = TestPipeline.create().enableAbandonedNodeEnforcement(false); |
| @Rule public ExpectedException thrown = ExpectedException.none(); |
| private PCollection<Long> mainInput = pipeline.apply(GenerateSequence.from(0)); |
| private PCollectionView<String> sideInput = |
| pipeline.apply(Create.of("foo")).apply(View.asSingleton()); |
| |
| private PCollection<Long> output = mainInput.apply(ParDo.of(new TestDoFn())); |
| |
| @Test |
| public void getMainInputSingleOutputSingleInput() { |
| AppliedPTransform<PCollection<Long>, ?, ?> application = |
| AppliedPTransform.of( |
| "application", |
| Collections.singletonMap(new TupleTag<Long>(), mainInput), |
| Collections.singletonMap(new TupleTag<Long>(), output), |
| ParDo.of(new TestDoFn()), |
| pipeline); |
| PCollection<Long> input = PTransformReplacements.getSingletonMainInput(application); |
| assertThat(input, equalTo(mainInput)); |
| } |
| |
| @Test |
| public void getMainInputSingleOutputSideInputs() { |
| AppliedPTransform<PCollection<Long>, ?, ?> application = |
| AppliedPTransform.of( |
| "application", |
| ImmutableMap.<TupleTag<?>, PValue>builder() |
| .put(new TupleTag<Long>(), mainInput) |
| .put(sideInput.getTagInternal(), sideInput.getPCollection()) |
| .build(), |
| Collections.singletonMap(new TupleTag<Long>(), output), |
| ParDo.of(new TestDoFn()).withSideInputs(sideInput), |
| pipeline); |
| PCollection<Long> input = PTransformReplacements.getSingletonMainInput(application); |
| assertThat(input, equalTo(mainInput)); |
| } |
| |
| @Test |
| public void getMainInputExtraMainInputsThrows() { |
| PCollection<Long> notInParDo = pipeline.apply("otherPCollection", Create.of(1L, 2L, 3L)); |
| ImmutableMap<TupleTag<?>, PValue> inputs = |
| ImmutableMap.<TupleTag<?>, PValue>builder() |
| .putAll(mainInput.expand()) |
| // Not represnted as an input |
| .put(new TupleTag<Long>(), notInParDo) |
| .put(sideInput.getTagInternal(), sideInput.getPCollection()) |
| .build(); |
| AppliedPTransform<PCollection<Long>, ?, ?> application = |
| AppliedPTransform.of( |
| "application", |
| inputs, |
| Collections.singletonMap(new TupleTag<Long>(), output), |
| ParDo.of(new TestDoFn()).withSideInputs(sideInput), |
| pipeline); |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("multiple inputs"); |
| thrown.expectMessage("not additional inputs"); |
| thrown.expectMessage(mainInput.toString()); |
| thrown.expectMessage(notInParDo.toString()); |
| PTransformReplacements.getSingletonMainInput(application); |
| } |
| |
| @Test |
| public void getMainInputNoMainInputsThrows() { |
| ImmutableMap<TupleTag<?>, PValue> inputs = |
| ImmutableMap.<TupleTag<?>, PValue>builder() |
| .put(sideInput.getTagInternal(), sideInput.getPCollection()) |
| .build(); |
| AppliedPTransform<PCollection<Long>, ?, ?> application = |
| AppliedPTransform.of( |
| "application", |
| inputs, |
| Collections.singletonMap(new TupleTag<Long>(), output), |
| ParDo.of(new TestDoFn()).withSideInputs(sideInput), |
| pipeline); |
| thrown.expect(IllegalArgumentException.class); |
| thrown.expectMessage("No main input"); |
| PTransformReplacements.getSingletonMainInput(application); |
| } |
| |
| private static class TestDoFn extends DoFn<Long, Long> { |
| @ProcessElement |
| public void process(ProcessContext context) {} |
| } |
| } |