bundles/org.simantics.history/test/org/simantics/history/test/TestBindingPerformance.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in\r
   3  * Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.history.test;\r
  13 \r
  14 import org.simantics.databoard.Bindings;\r
  15 import org.simantics.databoard.binding.Binding;\r
  16 import org.simantics.history.util.ValueBand;\r
  17 \r
  18 /**\r
  19  * Which is faster binding to use? \r
  20  * \r
  21  *    1. Write to record with reflection\r
  22  *    \r
  23  *    \r
  24  *    \r
  25  *    2. Write to object array with boxed primitives \r
  26  *    \r
  27  *    \r
  28  *\r
  29  */\r
  30 public class TestBindingPerformance {\r
  31         \r
  32         public static class Sample {\r
  33                 public double time, endTime, value, lastValue, min, max, avg, median;\r
  34                 public byte quality;\r
  35                 public int count;\r
  36         }       \r
  37         \r
  38         public static void test( Binding b ) throws Exception {\r
  39                 \r
  40                 Object s = b.createDefault();\r
  41                 ValueBand band = new ValueBand( b, s );\r
  42                                 \r
  43                 for (int i=0; i<10000000; i++) {\r
  44                         double value = i;\r
  45                         band.setTime(Bindings.DOUBLE, value);\r
  46                         band.setEndTime(Bindings.DOUBLE, value);\r
  47                         band.setValue(Bindings.DOUBLE, value);\r
  48                         band.setLastValue(Bindings.DOUBLE, value);\r
  49                         band.setMin(Bindings.DOUBLE, value);\r
  50                         band.setMax(Bindings.DOUBLE, value);\r
  51                         band.setAvg(Bindings.DOUBLE, value);\r
  52                         band.setMedian(Bindings.DOUBLE, value);\r
  53                 }\r
  54                 \r
  55         }\r
  56         \r
  57         public static void main(String[] args) throws Exception {\r
  58                 \r
  59                 Binding b1 = Bindings.getBinding( Sample.class );\r
  60                 Binding b2 = Bindings.getBinding( b1.type() );\r
  61                 \r
  62                 test(b1);\r
  63                 test(b2);\r
  64                 \r
  65                 long ct = System.currentTimeMillis();\r
  66                 test(b1);\r
  67                 System.out.println(System.currentTimeMillis()-ct);\r
  68 \r
  69                 ct = System.currentTimeMillis();\r
  70                 test(b2);\r
  71                 System.out.println(System.currentTimeMillis()-ct);\r
  72                 \r
  73         }\r
  74 \r
  75 }\r