| /* |
| * 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.dataflow.worker; |
| |
| import static org.hamcrest.Matchers.equalTo; |
| import static org.hamcrest.Matchers.hasItem; |
| import static org.hamcrest.Matchers.hasSize; |
| import static org.junit.Assert.assertThat; |
| |
| import java.util.List; |
| import org.apache.beam.runners.dataflow.worker.GroupAlsoByWindowParDoFnFactory.MergingCombineFn; |
| import org.apache.beam.sdk.coders.VarLongCoder; |
| import org.apache.beam.sdk.testing.TestPipeline; |
| import org.apache.beam.sdk.transforms.Combine.BinaryCombineLongFn; |
| import org.apache.beam.sdk.transforms.Sum; |
| import org.apache.beam.sdk.transforms.windowing.FixedWindows; |
| import org.apache.beam.sdk.transforms.windowing.WindowFn; |
| import org.apache.beam.sdk.values.WindowingStrategy; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableList; |
| import org.joda.time.Duration; |
| import org.junit.Rule; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.JUnit4; |
| |
| /** Tests for {@link GroupAlsoByWindowParDoFnFactory}. */ |
| @RunWith(JUnit4.class) |
| public class GroupAlsoByWindowParDoFnFactoryTest { |
| @Rule public TestPipeline p = TestPipeline.create().enableAbandonedNodeEnforcement(false); |
| |
| @Test |
| public void testJavaWindowingStrategyDeserialization() throws Exception { |
| WindowFn windowFn = FixedWindows.of(Duration.millis(17)); |
| |
| WindowingStrategy windowingStrategy = WindowingStrategy.of(windowFn); |
| |
| assertThat(windowingStrategy.getWindowFn(), equalTo(windowFn)); |
| } |
| |
| @Test |
| public void testMultipleAccumulatorsInMergingCombineFn() { |
| BinaryCombineLongFn originalFn = Sum.ofLongs(); |
| MergingCombineFn<Void, long[]> fn = |
| new MergingCombineFn<>( |
| originalFn, originalFn.getAccumulatorCoder(p.getCoderRegistry(), VarLongCoder.of())); |
| |
| long[] inputAccum = originalFn.createAccumulator(); |
| inputAccum = originalFn.addInput(inputAccum, 1L); |
| inputAccum = originalFn.addInput(inputAccum, 2L); |
| assertThat(inputAccum[0], equalTo(3L)); |
| |
| long[] otherAccum = originalFn.createAccumulator(); |
| otherAccum = originalFn.addInput(otherAccum, 4L); |
| assertThat(otherAccum[0], equalTo(4L)); |
| |
| List<long[]> first = fn.createAccumulator(); |
| first = fn.addInput(first, inputAccum); |
| assertThat(first, hasItem(inputAccum)); |
| assertThat(inputAccum.length, equalTo(1)); |
| assertThat(inputAccum[0], equalTo(3L)); |
| |
| List<long[]> second = fn.createAccumulator(); |
| second = fn.addInput(second, inputAccum); |
| assertThat(second, hasItem(inputAccum)); |
| assertThat(inputAccum.length, equalTo(1)); |
| assertThat(inputAccum[0], equalTo(3L)); |
| |
| List<long[]> mergeToSecond = fn.createAccumulator(); |
| mergeToSecond = fn.addInput(mergeToSecond, otherAccum); |
| assertThat(mergeToSecond, hasItem(otherAccum)); |
| assertThat(otherAccum.length, equalTo(1)); |
| assertThat(otherAccum[0], equalTo(4L)); |
| |
| List<long[]> firstSelfMerged = fn.mergeAccumulators(ImmutableList.of(first)); |
| List<long[]> compactedFirst = fn.compact(firstSelfMerged); |
| assertThat(firstSelfMerged, equalTo(compactedFirst)); |
| assertThat(firstSelfMerged, hasSize(1)); |
| assertThat(firstSelfMerged.get(0)[0], equalTo(3L)); |
| |
| List<long[]> secondMerged = fn.mergeAccumulators(ImmutableList.of(second, mergeToSecond)); |
| List<long[]> secondCompacted = fn.compact(secondMerged); |
| assertThat(secondCompacted, hasSize(1)); |
| assertThat(secondCompacted.get(0)[0], equalTo(7L)); |
| assertThat(firstSelfMerged, equalTo(compactedFirst)); |
| assertThat(firstSelfMerged, hasSize(1)); |
| assertThat(firstSelfMerged.get(0)[0], equalTo(3L)); |
| } |
| } |