| /** |
| * 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.hadoop.mapred; |
| |
| import java.util.Map; |
| |
| import org.apache.hadoop.mapred.StatisticsCollector.TimeWindow; |
| import org.apache.hadoop.mapred.StatisticsCollector.Stat; |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertNotNull; |
| import static org.junit.Assert.assertNull; |
| |
| public class TestStatisticsCollector { |
| |
| @SuppressWarnings("rawtypes") |
| @Test |
| public void testMovingWindow() throws Exception { |
| StatisticsCollector collector = new StatisticsCollector(1); |
| TimeWindow window = new TimeWindow("test", 6, 2); |
| TimeWindow sincStart = StatisticsCollector.SINCE_START; |
| TimeWindow[] windows = {sincStart, window}; |
| |
| Stat stat = collector.createStat("m1", windows); |
| |
| stat.inc(3); |
| collector.update(); |
| assertEquals(0, stat.getValues().get(window).getValue()); |
| assertEquals(3, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(3); |
| collector.update(); |
| assertEquals((3+3), stat.getValues().get(window).getValue()); |
| assertEquals(6, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(10); |
| collector.update(); |
| assertEquals((3+3), stat.getValues().get(window).getValue()); |
| assertEquals(16, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(10); |
| collector.update(); |
| assertEquals((3+3+10+10), stat.getValues().get(window).getValue()); |
| assertEquals(26, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(10); |
| collector.update(); |
| stat.inc(10); |
| collector.update(); |
| assertEquals((3+3+10+10+10+10), stat.getValues().get(window).getValue()); |
| assertEquals(46, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(10); |
| collector.update(); |
| assertEquals((3+3+10+10+10+10), stat.getValues().get(window).getValue()); |
| assertEquals(56, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(12); |
| collector.update(); |
| assertEquals((10+10+10+10+10+12), stat.getValues().get(window).getValue()); |
| assertEquals(68, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(13); |
| collector.update(); |
| assertEquals((10+10+10+10+10+12), stat.getValues().get(window).getValue()); |
| assertEquals(81, stat.getValues().get(sincStart).getValue()); |
| |
| stat.inc(14); |
| collector.update(); |
| assertEquals((10+10+10+12+13+14), stat.getValues().get(window).getValue()); |
| assertEquals(95, stat.getValues().get(sincStart).getValue()); |
| |
| // test Stat class |
| Map updaters= collector.getUpdaters(); |
| assertEquals(updaters.size(),2); |
| Map<String, Stat> ststistics=collector.getStatistics(); |
| assertNotNull(ststistics.get("m1")); |
| |
| Stat newStat= collector.createStat("m2"); |
| assertEquals(newStat.name, "m2"); |
| Stat st=collector.removeStat("m1"); |
| assertEquals(st.name, "m1"); |
| assertEquals((10+10+10+12+13+14), stat.getValues().get(window).getValue()); |
| assertEquals(95, stat.getValues().get(sincStart).getValue()); |
| st=collector.removeStat("m1"); |
| // try to remove stat again |
| assertNull(st); |
| collector.start(); |
| // waiting 2,5 sec |
| Thread.sleep(2500); |
| assertEquals(69, stat.getValues().get(window).getValue()); |
| assertEquals(95, stat.getValues().get(sincStart).getValue()); |
| |
| } |
| |
| } |