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

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2011 Association for Decentralized Information Management in
   3  * Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.history.test;
  13
  14 import java.util.Arrays;
  15 import java.util.TreeSet;
  16
  17 import org.simantics.databoard.Bindings;
  18 import org.simantics.databoard.binding.ArrayBinding;
  19 import org.simantics.databoard.binding.Binding;
  20 import org.simantics.databoard.binding.error.BindingConstructionException;
  21 import org.simantics.databoard.binding.reflection.BindingProvider;
  22 import org.simantics.databoard.binding.reflection.BindingRequest;
  23 import org.simantics.databoard.serialization.Serializer;
  24 import org.simantics.databoard.type.ArrayType;
  25 import org.simantics.history.util.Median;
  26 import org.simantics.history.util.MedianBinding;
  27
  28 public class TestMedian {
  29
  30         public static void main(String[] args) throws Exception {
  31
  32                 TreeSet<Integer> numbers = new TreeSet<Integer>();
  33             Median<Integer> fastMedian = new Median<Integer>( Bindings.INTEGER );
  34
  35             for (int i = 1; i < 10; i += 2) {
  36                 numbers.add(i);
  37                 fastMedian.add(i);
  38                 System.out.println(numbers + " median: " + fastMedian.getMedian());
  39             }
  40
  41             for (int i = 10; i >= 2; i -= 2) {
  42                 numbers.add(i);
  43                 fastMedian.add(i);
  44                 System.out.println(numbers + " median: " + fastMedian.getMedian());
  45             }
  46
  47             BindingProvider medianBindingFactory = new BindingProvider() {
  48                         public Binding provideBinding(org.simantics.databoard.binding.reflection.ClassBindingFactory master, BindingRequest request) throws BindingConstructionException {
  49                                 if (Median.class.isAssignableFrom( request.getClazz() )) {
  50                                         return new MedianBinding(new ArrayType(null), null);
  51                                 }
  52                                 return null;
  53                         }
  54             };
  55
  56             Bindings.classBindingFactory.addFactory( medianBindingFactory );
  57
  58             ArrayBinding b = (ArrayBinding) Bindings.getBindingUnchecked(Median.class, Integer.class);
  59             Median<Integer> qu = (Median<Integer>) b.createDefault();
  60             qu.add( 5 );
  61             System.out.println( b.get(qu, 0) ) ;
  62
  63             System.out.println( b.toString( fastMedian ) );
  64             fastMedian.setSize( 3 );
  65             System.out.println( b.toString( fastMedian ) );
  66
  67
  68             Serializer s = Bindings.getSerializerUnchecked( b );
  69             byte[] data = s.serialize( fastMedian );
  70             System.out.println(Arrays.toString(data));
  71             Median<Integer> q2 = (Median<Integer>) s.deserialize( data );
  72             System.out.println( b.toString(q2) );
  73
  74             System.out.println();
  75         }
  76 }