| /** |
| * 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.metrics2.host.aggregator; |
| |
| import junit.framework.Assert; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetric; |
| import org.apache.hadoop.metrics2.sink.timeline.TimelineMetrics; |
| import org.junit.Test; |
| |
| import java.lang.reflect.Field; |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Map; |
| |
| |
| public class TimelineMetricsHolderTest { |
| private TimelineMetricsHolder timelineMetricsHolderInstance; |
| |
| public void clearHolderSingleton() throws NoSuchFieldException, IllegalAccessException { |
| Class timelineMetricHolderClass = TimelineMetricsHolder.class; |
| Field field = timelineMetricHolderClass.getDeclaredField("instance"); |
| field.setAccessible(true); |
| field.set(field, null); |
| } |
| |
| @Test |
| public void testGetInstanceDefaultValues() throws Exception { |
| clearHolderSingleton(); |
| Assert.assertNotNull(TimelineMetricsHolder.getInstance()); |
| } |
| |
| @Test |
| public void testGetInstanceWithParameters() throws Exception { |
| clearHolderSingleton(); |
| Assert.assertNotNull(TimelineMetricsHolder.getInstance(1,2, Collections.EMPTY_LIST)); |
| } |
| |
| @Test |
| public void testCache() throws Exception { |
| clearHolderSingleton(); |
| timelineMetricsHolderInstance = TimelineMetricsHolder.getInstance(4,4, Collections.EMPTY_LIST); |
| timelineMetricsHolderInstance.putMetricsForAggregationPublishing(getTimelineMetricsWithAppID("aggr")); |
| timelineMetricsHolderInstance.putMetricsForRawPublishing(getTimelineMetricsWithAppID("raw")); |
| |
| Map<String, TimelineMetrics> aggregationMap = timelineMetricsHolderInstance.extractMetricsForAggregationPublishing(); |
| Map<String, TimelineMetrics> rawMap = timelineMetricsHolderInstance.extractMetricsForRawPublishing(); |
| |
| Assert.assertEquals(1, aggregationMap.size()); |
| Assert.assertEquals(1, rawMap.size()); |
| |
| Collection<TimelineMetrics> aggregationCollection = aggregationMap.values(); |
| Collection<TimelineMetrics> rawCollection = rawMap.values(); |
| |
| Collection<String> aggregationCollectionKeys = aggregationMap.keySet(); |
| Collection<String> rawCollectionKeys = rawMap.keySet(); |
| |
| for (String key : aggregationCollectionKeys) { |
| Assert.assertTrue(key.contains("aggr")); |
| } |
| |
| for (String key : rawCollectionKeys) { |
| Assert.assertTrue(key.contains("raw")); |
| } |
| |
| Assert.assertEquals(1, aggregationCollection.size()); |
| Assert.assertEquals(1, rawCollection.size()); |
| |
| TimelineMetrics aggregationTimelineMetrics = (TimelineMetrics) aggregationCollection.toArray()[0]; |
| TimelineMetrics rawTimelineMetrics = (TimelineMetrics) rawCollection.toArray()[0]; |
| |
| |
| Assert.assertEquals(1, aggregationTimelineMetrics.getMetrics().size()); |
| Assert.assertEquals(1, rawTimelineMetrics.getMetrics().size()); |
| |
| Assert.assertEquals("aggr", aggregationTimelineMetrics.getMetrics().get(0).getAppId()); |
| Assert.assertEquals("raw", rawTimelineMetrics.getMetrics().get(0).getAppId()); |
| |
| aggregationMap = timelineMetricsHolderInstance.extractMetricsForAggregationPublishing(); |
| rawMap = timelineMetricsHolderInstance.extractMetricsForRawPublishing(); |
| |
| //Cache should be empty after extraction |
| Assert.assertEquals(0, aggregationMap.size()); |
| Assert.assertEquals(0, rawMap.size()); |
| } |
| |
| public static TimelineMetrics getTimelineMetricsWithAppID(String appId) { |
| TimelineMetric timelineMetric = new TimelineMetric(); |
| timelineMetric.setAppId(appId); |
| TimelineMetrics timelineMetrics = new TimelineMetrics(); |
| timelineMetrics.addOrMergeTimelineMetric(timelineMetric); |
| return timelineMetrics; |
| } |
| } |