| /** |
| * 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.crunch; |
| |
| import com.google.common.collect.ImmutableList; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.collect.Lists; |
| import com.google.common.collect.Sets; |
| import org.apache.crunch.impl.spark.SparkPipeline; |
| import org.apache.crunch.io.From; |
| import org.apache.crunch.io.To; |
| import org.apache.crunch.test.TemporaryPath; |
| import org.apache.crunch.types.avro.Avros; |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import java.io.IOException; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class SparkTaskAttemptIT { |
| @Rule |
| public TemporaryPath tempDir = new TemporaryPath(); |
| |
| private SparkPipeline pipeline; |
| |
| @Before |
| public void setUp() throws IOException { |
| pipeline = new SparkPipeline("local", "taskattempt"); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| pipeline.done(); |
| } |
| |
| @Test |
| public void testTaskAttempts() throws Exception { |
| String inputPath = tempDir.copyResourceFileName("set1.txt"); |
| String inputPath2 = tempDir.copyResourceFileName("set2.txt"); |
| |
| PCollection<String> first = pipeline.read(From.textFile(inputPath)); |
| PCollection<String> second = pipeline.read(From.textFile(inputPath2)); |
| |
| Iterable<Pair<Integer, Long>> cnts = first.union(second) |
| .parallelDo(new TaskMapFn(), Avros.ints()) |
| .count() |
| .materialize(); |
| assertEquals(ImmutableSet.of(Pair.of(0, 4L), Pair.of(1, 3L)), Sets.newHashSet(cnts)); |
| } |
| |
| private static class TaskMapFn extends MapFn<String, Integer> { |
| @Override |
| public Integer map(String input) { |
| return getContext().getTaskAttemptID().getTaskID().getId(); |
| } |
| } |
| } |