001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018package org.apache.hadoop.hbase.client;
019
020import static org.junit.Assert.assertEquals;
021import static org.junit.Assert.assertNull;
022
023import org.apache.hadoop.hbase.HBaseClassTestRule;
024import org.apache.hadoop.hbase.ServerName;
025import org.apache.hadoop.hbase.client.backoff.ServerStatistics;
026import org.apache.hadoop.hbase.testclassification.ClientTests;
027import org.apache.hadoop.hbase.testclassification.SmallTests;
028import org.junit.ClassRule;
029import org.junit.Test;
030import org.junit.experimental.categories.Category;
031
032@Category({ ClientTests.class, SmallTests.class })
033public class TestResultStatsUtil {
034  @ClassRule
035  public static final HBaseClassTestRule CLASS_RULE =
036    HBaseClassTestRule.forClass(TestResultStatsUtil.class);
037
038  private static final RegionLoadStats regionLoadStats = new RegionLoadStats(100, 10, 90);
039  private static final byte[] regionName = { 80 };
040  private static final ServerName server = ServerName.parseServerName("3.1.yg.n,50,1");
041
042  @Test
043  public void testUpdateStats() {
044    // Create a tracker
045    ServerStatisticTracker serverStatisticTracker = new ServerStatisticTracker();
046
047    // Pass in the tracker for update
048    ResultStatsUtil.updateStats(serverStatisticTracker, server, regionName, regionLoadStats);
049
050    // Check that the tracker was updated as expected
051    ServerStatistics stats = serverStatisticTracker.getStats(server);
052
053    assertEquals(regionLoadStats.memstoreLoad,
054      stats.getStatsForRegion(regionName).getMemStoreLoadPercent());
055    assertEquals(regionLoadStats.compactionPressure,
056      stats.getStatsForRegion(regionName).getCompactionPressure());
057    assertEquals(regionLoadStats.heapOccupancy,
058      stats.getStatsForRegion(regionName).getHeapOccupancyPercent());
059  }
060
061  @Test
062  public void testUpdateStatsRegionNameNull() {
063    ServerStatisticTracker serverStatisticTracker = new ServerStatisticTracker();
064
065    ResultStatsUtil.updateStats(serverStatisticTracker, server, null, regionLoadStats);
066
067    ServerStatistics stats = serverStatisticTracker.getStats(server);
068    assertNull(stats);
069  }
070
071  @Test
072  public void testUpdateStatsStatsNull() {
073    ServerStatisticTracker serverStatisticTracker = new ServerStatisticTracker();
074
075    ResultStatsUtil.updateStats(serverStatisticTracker, server, regionName, null);
076
077    ServerStatistics stats = serverStatisticTracker.getStats(server);
078    assertNull(stats);
079  }
080
081  @Test
082  public void testUpdateStatsTrackerNull() {
083    ServerStatisticTracker serverStatisticTracker = new ServerStatisticTracker();
084
085    ResultStatsUtil.updateStats(null, server, regionName, regionLoadStats);
086
087    ServerStatistics stats = serverStatisticTracker.getStats(server);
088    assertNull(stats);
089  }
090}