| /** |
| * 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 static org.hamcrest.Matchers.is; |
| import static org.junit.Assert.assertThat; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.crunch.PipelineResult.StageResult; |
| import org.apache.crunch.impl.mem.MemPipeline; |
| import org.apache.crunch.impl.mr.MRPipeline; |
| import org.apache.crunch.io.From; |
| import org.apache.crunch.test.TemporaryPath; |
| import org.apache.crunch.test.TemporaryPaths; |
| import org.apache.crunch.types.PTypeFamily; |
| import org.apache.crunch.types.avro.AvroTypeFamily; |
| import org.apache.crunch.types.writable.WritableTypeFamily; |
| import org.junit.After; |
| import org.junit.Rule; |
| import org.junit.Test; |
| |
| import com.google.common.collect.ImmutableMap; |
| import com.google.common.collect.Maps; |
| import com.google.common.collect.Sets; |
| |
| public class StageResultsCountersIT { |
| |
| @Rule |
| public TemporaryPath tmpDir = TemporaryPaths.create(); |
| |
| public static HashSet<String> SPECIAL_KEYWORDS = Sets.newHashSet("AND", "OR", "NOT"); |
| |
| public static String KEYWORDS_COUNTER_GROUP = "KEYWORDS_COUNTER_GROUP"; |
| |
| @After |
| public void after() { |
| MemPipeline.clearCounters(); |
| } |
| |
| @Test |
| public void testStageResultsCountersMRWritables() throws Exception { |
| testSpecialKeywordCount(new MRPipeline(StageResultsCountersIT.class, tmpDir.getDefaultConfiguration()), |
| WritableTypeFamily.getInstance()); |
| } |
| |
| @Test |
| public void testStageResultsCountersMRAvro() throws Exception { |
| testSpecialKeywordCount(new MRPipeline(StageResultsCountersIT.class, tmpDir.getDefaultConfiguration()), |
| AvroTypeFamily.getInstance()); |
| } |
| |
| @Test |
| public void testStageResultsCountersMemWritables() throws Exception { |
| testSpecialKeywordCount(MemPipeline.getInstance(), WritableTypeFamily.getInstance()); |
| } |
| |
| @Test |
| public void testStageResultsCountersMemAvro() throws Exception { |
| testSpecialKeywordCount(MemPipeline.getInstance(), AvroTypeFamily.getInstance()); |
| } |
| |
| public void testSpecialKeywordCount(Pipeline pipeline, PTypeFamily tf) throws Exception { |
| |
| String rowsInputPath = tmpDir.copyResourceFileName("shakes.txt"); |
| |
| PipelineResult result = coutSpecialKeywords(pipeline, rowsInputPath, tf); |
| |
| assertTrue(result.succeeded()); |
| |
| Map<String, Long> keywordsMap = countersToMap(result.getStageResults(), KEYWORDS_COUNTER_GROUP); |
| |
| assertThat(keywordsMap, is((Map<String, Long>) ImmutableMap.of("NOT", 157L, "AND", 596L, "OR", 81L))); |
| } |
| |
| private static PipelineResult coutSpecialKeywords(Pipeline pipeline, String inputFileName, PTypeFamily tf) { |
| |
| pipeline.read(From.textFile(inputFileName)).parallelDo(new DoFn<String, Void>() { |
| |
| @Override |
| public void process(String text, Emitter<Void> emitter) { |
| |
| if (!StringUtils.isBlank(text)) { |
| |
| String[] tokens = text.toUpperCase().split("\\s"); |
| |
| for (String token : tokens) { |
| if (SPECIAL_KEYWORDS.contains(token)) { |
| increment(KEYWORDS_COUNTER_GROUP, token); |
| } |
| } |
| } |
| } |
| }, tf.nulls()).materialize(); // TODO can we avoid the materialize ? |
| |
| return pipeline.done(); |
| } |
| |
| private static Map<String, Long> countersToMap(List<StageResult> stages, String counterGroupName) { |
| |
| Map<String, Long> countersMap = Maps.newHashMap(); |
| |
| for (StageResult sr : stages) { |
| for (String counterName : sr.getCounterNames().get(counterGroupName)) { |
| countersMap.put(sr.getCounterDisplayName(counterGroupName, counterName), |
| sr.getCounterValue(counterGroupName, counterName)); |
| } |
| } |
| |
| return countersMap; |
| } |
| |
| } |