| /* |
| * 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.samza.util; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| import java.io.Serializable; |
| import java.util.Objects; |
| import org.apache.beam.runners.core.construction.PipelineTranslation; |
| import org.apache.beam.runners.core.construction.graph.ExecutableStage; |
| import org.apache.beam.runners.core.construction.graph.GreedyPipelineFuser; |
| import org.apache.beam.sdk.Pipeline; |
| import org.apache.beam.sdk.transforms.Create; |
| import org.apache.beam.sdk.transforms.Filter; |
| import org.apache.beam.sdk.transforms.GroupByKey; |
| import org.apache.beam.sdk.transforms.PTransform; |
| import org.apache.beam.sdk.values.KV; |
| import org.apache.beam.sdk.values.PCollection; |
| import org.apache.beam.sdk.values.PDone; |
| import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.Iterables; |
| import org.junit.Test; |
| |
| public class DoFnUtilsTest implements Serializable { |
| private final Pipeline pipeline = Pipeline.create(); |
| |
| @Test |
| public void testExecutableStageWithoutOutput() { |
| pipeline.apply(Create.of(KV.of(1L, "1"))); |
| |
| assertEquals("[Create.Values-]", DoFnUtils.toStepName(getOnlyExecutableStage(pipeline))); |
| } |
| |
| @Test |
| public void testExecutableStageWithCustomizedName() { |
| pipeline.apply("MyCreateOf", Create.of(KV.of(1L, "1"))); |
| assertEquals("[MyCreateOf-]", DoFnUtils.toStepName(getOnlyExecutableStage(pipeline))); |
| } |
| |
| @Test |
| public void testExecutableStageWithOutput() { |
| pipeline |
| .apply("MyCreateOf", Create.of(KV.of(1L, "1"))) |
| .apply("MyFilterBy", Filter.by(Objects::nonNull)) |
| .apply(GroupByKey.create()); |
| |
| assertEquals("[MyCreateOf-MyFilterBy]", DoFnUtils.toStepName(getOnlyExecutableStage(pipeline))); |
| } |
| |
| @Test |
| public void testExecutableStageWithPDone() { |
| pipeline |
| .apply("MyCreateOf", Create.of("1")) |
| .apply( |
| "PDoneTransform", |
| new PTransform<PCollection<String>, PDone>() { |
| @Override |
| public PDone expand(PCollection<String> input) { |
| return PDone.in(pipeline); |
| } |
| }); |
| |
| assertEquals("[MyCreateOf-]", DoFnUtils.toStepName(getOnlyExecutableStage(pipeline))); |
| } |
| |
| private static ExecutableStage getOnlyExecutableStage(Pipeline p) { |
| return Iterables.getOnlyElement( |
| GreedyPipelineFuser.fuse(PipelineTranslation.toProto(p)).getFusedStages()); |
| } |
| } |