org.simantics.interop/src/org/simantics/interop/test/TypeComparator.java

   1 package org.simantics.interop.test;
   2
   3 import java.util.ArrayList;
   4 import java.util.Comparator;
   5
   6 import org.simantics.db.ReadGraph;
   7 import org.simantics.db.Resource;
   8 import org.simantics.db.Statement;
   9 import org.simantics.db.exception.DatabaseException;
  10 import org.simantics.layer0.Layer0;
  11
  12 /**
  13  * Object comparator that uses type of objects to check if objects are comparable.
  14  *
  15  * Difference value is amount of properties that have different values. If objects have no properties, the result is 0 (unreliable).
  16  *
  17  *
  18  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>
  19  *
  20  */
  21 public class TypeComparator extends ResourceComparator {
  22
  23
  24         ArrayList<Resource> rs1 = new ArrayList<Resource>();
  25         ArrayList<Resource> rs2 = new ArrayList<Resource>();
  26
  27         @Override
  28         public int compare(ReadGraph g, Resource o1, Resource o2, boolean local) throws DatabaseException {
  29                 if (o1.equals(o2)) {
  30                         return 1;
  31                 }
  32                 return compare(g, o1, o2);
  33         }
  34
  35         @Override
  36         public int compare(ReadGraph g, Resource o1, Resource o2) throws DatabaseException{
  37                 if (!compareType(g,o1, o2)) {
  38                         return (Integer.MAX_VALUE);
  39                 }
  40                 return propsDiffCount(g,o1, o2);
  41         }
  42
  43         protected boolean compareType(ReadGraph g,Resource r1, Resource r2) throws DatabaseException {
  44                 Layer0 l0 = Layer0.getInstance(g);
  45                 rs1.addAll(g.getObjects(r1, l0.InstanceOf));
  46                 rs2.addAll(g.getObjects(r2, l0.InstanceOf));
  47                 if (rs1.size() != rs2.size()) {
  48                         rs1.clear();
  49                         rs2.clear();
  50                         return false;
  51                 }
  52                 Comparator<Resource> rcomp = getComparator().getResourceComparator();
  53                 getComparator().sortResource(rs1, rs2);
  54
  55                 for (int i = 0; i < rs1.size(); i++) {
  56                         int c = rcomp.compare(rs1.get(i), rs2.get(i));
  57                         if (c != 0) {
  58                                 rs1.clear();
  59                                 rs2.clear();
  60                                 return false;
  61                         }
  62                 }
  63
  64                 rs1.clear();
  65                 rs2.clear();
  66
  67                 return true;
  68         }
  69
  70         protected int propsDiffCount(ReadGraph g, Resource r1, Resource r2) throws DatabaseException {
  71                 Layer0 l0 = Layer0.getInstance(g);
  72                 ArrayList<Statement> ss1 = new ArrayList<Statement>();
  73                 ArrayList<Statement> ss2 = new ArrayList<Statement>();
  74                 ss1.addAll(g.getStatements(r1, l0.HasProperty));
  75                 ss2.addAll(g.getStatements(r2, l0.HasProperty));
  76
  77                 if (ss1.size() == 0 && ss2.size() == 0)
  78                         return 0;
  79
  80                 Comparator<Statement> scomp = getComparator().getStatementComparator();
  81
  82                 getComparator().sortStatement(ss1, ss2);
  83
  84                 int count = 1;
  85
  86                 int i1 = 0;
  87                 int i2 = 0;
  88
  89                 while (true) {
  90                         if (i1 >= ss1.size()) {
  91                                 if (i2 >= ss2.size())
  92                                         break;
  93                                 else {
  94                                         while (i2 < ss2.size()) {
  95                                                 count++;
  96                                                 i2++;
  97                                         }
  98                                         break;
  99                                 }
 100                         } else if (i2 >= ss2.size()) {
 101                                 while (i1 < ss1.size()) {
 102                                         count++;
 103                                         i1++;
 104                                 }
 105                                 break;
 106                         }
 107                         Statement s1 = ss1.get(i1);
 108                         Statement s2 = ss2.get(i2);
 109                         if (s1.isAsserted(r1) && s2.isAsserted(r2)) {
 110                                 i1++;
 111                                 i2++;
 112                                 continue;
 113                         }
 114                         int c = scomp.compare(s1, s2);
 115                         switch (c) {
 116                                 case 0:{
 117                                         boolean b1 = g.hasValue(s1.getObject());
 118                                         boolean b2 = g.hasValue(s2.getObject());
 119                                         if (b1 == b2) {
 120                                                 if (b1) {
 121 //                                                      Object v1 = g.getValue(s1.getObject());
 122 //                                                      Object v2 = g.getValue(s2.getObject());
 123 //                                                      boolean eq = GraphComparator.compareValue(v1, v2);
 124                                                         boolean eq = GraphComparator.compareValue(g, l0 , s1.getObject(), s2.getObject());
 125
 126                                                         if (!eq) {
 127                                                                 count++;
 128                                                         }
 129                                                         //System.out.println("Prop count values " + v1 + " " + v2);
 130                                                 } else {
 131                                                         count += propsDiffCount(g,s1.getObject(), s2.getObject());
 132                                                 }
 133                                         } else {
 134                                                 //System.out.println("Props count structural vs literal");
 135                                                 count++;
 136                                         }
 137                                         i1++;
 138                                         i2++;
 139                                         break;
 140                                 }
 141                                 case -1:{
 142                                         count++;
 143                                         i1++;
 144                                         break;
 145                                 }
 146
 147                                 case 1:{
 148                                         count++;
 149                                         i2++;
 150                                         break;
 151                                 }
 152                         }
 153
 154                 }
 155
 156                 ss1.clear();
 157                 ss2.clear();
 158                 return count;
 159         }
 160
 161 }