hbase-server/src/test/java/org/apache/hadoop/hbase/PerformanceEvaluationCommons.java

   1 /**
   2  *
   3  * Licensed to the Apache Software Foundation (ASF) under one
   4  * or more contributor license agreements.  See the NOTICE file
   5  * distributed with this work for additional information
   6  * regarding copyright ownership.  The ASF licenses this file
   7  * to you under the Apache License, Version 2.0 (the
   8  * "License"); you may not use this file except in compliance
   9  * with the License.  You may obtain a copy of the License at
  10  *
  11  *     http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  */
  19 package org.apache.hadoop.hbase;
  20
  21 import java.nio.ByteBuffer;
  22 import java.util.ArrayList;
  23 import java.util.List;
  24
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28
  29 /**
  30  * Code shared by PE tests.
  31  */
  32 public class PerformanceEvaluationCommons {
  33   private static final Logger LOG =
  34     LoggerFactory.getLogger(PerformanceEvaluationCommons.class.getName());
  35
  36   public static void assertValueSize(final int expectedSize, final int got) {
  37     if (got != expectedSize) {
  38       throw new AssertionError("Expected " + expectedSize + " but got " + got);
  39     }
  40   }
  41
  42   public static void assertKey(final byte [] expected, final ByteBuffer got) {
  43     byte [] b = new byte[got.limit()];
  44     got.get(b, 0, got.limit());
  45     assertKey(expected, b);
  46   }
  47
  48   public static void assertKey(final byte [] expected, final Cell c) {
  49     assertKey(expected, c.getRowArray(), c.getRowOffset(), c.getRowLength());
  50   }
  51
  52   public static void assertKey(final byte [] expected, final byte [] got) {
  53     assertKey(expected, got, 0, got.length);
  54   }
  55
  56   public static void assertKey(final byte [] expected, final byte [] gotArray,
  57       final int gotArrayOffset, final int gotArrayLength) {
  58     if (!org.apache.hadoop.hbase.util.Bytes.equals(expected, 0, expected.length,
  59         gotArray, gotArrayOffset, gotArrayLength)) {
  60       throw new AssertionError("Expected " +
  61         org.apache.hadoop.hbase.util.Bytes.toString(expected) +
  62         " but got " +
  63         org.apache.hadoop.hbase.util.Bytes.toString(gotArray, gotArrayOffset, gotArrayLength));
  64     }
  65   }
  66
  67   public static void concurrentReads(final Runnable r) {
  68     final int count = 1;
  69     long now = System.currentTimeMillis();
  70     List<Thread> threads = new ArrayList<>(count);
  71     for (int i = 0; i < count; i++) {
  72       threads.add(new Thread(r, "concurrentRead-" + i));
  73     }
  74     for (Thread t: threads) {
  75       t.start();
  76     }
  77     for (Thread t: threads) {
  78       try {
  79         t.join();
  80       } catch (InterruptedException e) {
  81         e.printStackTrace();
  82       }
  83     }
  84     LOG.info("Test took " + (System.currentTimeMillis() - now));
  85   }
  86 }