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 EXACT_MATCH;
  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 NO_MATCH;
  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                 if (rs1.size() == 1) {
  64                         // Check for enumeration type. Without this enumeration instances could be mixed together.
  65                         if (g.hasStatement(rs1.get(0), l0.Enumeration, rs1.get(0))) {
  66                                 if (!r1.equals(r2)) {
  67                                         rs1.clear();
  68                                         rs2.clear();
  69                                         return false;
  70                                 }
  71                         }
  72                 }
  73
  74                 rs1.clear();
  75                 rs2.clear();
  76
  77                 return true;
  78         }
  79
  80         protected int propsDiffCount(ReadGraph g, Resource r1, Resource r2) throws DatabaseException {
  81                 Layer0 l0 = Layer0.getInstance(g);
  82                 ArrayList<Statement> ss1 = new ArrayList<Statement>();
  83                 ArrayList<Statement> ss2 = new ArrayList<Statement>();
  84                 ss1.addAll(g.getStatements(r1, l0.HasProperty));
  85                 ss2.addAll(g.getStatements(r2, l0.HasProperty));
  86
  87                 if (ss1.size() == 0 && ss2.size() == 0)
  88                         return 0;
  89
  90                 Comparator<Statement> scomp = getComparator().getStatementComparator();
  91
  92                 getComparator().sortStatement(ss1, ss2);
  93
  94                 int count = 1;
  95
  96                 int i1 = 0;
  97                 int i2 = 0;
  98
  99                 while (true) {
 100                         if (i1 >= ss1.size()) {
 101                                 if (i2 >= ss2.size())
 102                                         break;
 103                                 else {
 104                                         while (i2 < ss2.size()) {
 105                                                 count++;
 106                                                 i2++;
 107                                         }
 108                                         break;
 109                                 }
 110                         } else if (i2 >= ss2.size()) {
 111                                 while (i1 < ss1.size()) {
 112                                         count++;
 113                                         i1++;
 114                                 }
 115                                 break;
 116                         }
 117                         Statement s1 = ss1.get(i1);
 118                         Statement s2 = ss2.get(i2);
 119                         if (s1.isAsserted(r1) && s2.isAsserted(r2)) {
 120                                 i1++;
 121                                 i2++;
 122                                 continue;
 123                         }
 124                         int c = scomp.compare(s1, s2);
 125                         switch (c) {
 126                                 case 0:{
 127                                         boolean b1 = g.hasValue(s1.getObject());
 128                                         boolean b2 = g.hasValue(s2.getObject());
 129                                         if (b1 == b2) {
 130                                                 if (b1) {
 131 //                                                      Object v1 = g.getValue(s1.getObject());
 132 //                                                      Object v2 = g.getValue(s2.getObject());
 133 //                                                      boolean eq = GraphComparator.compareValue(v1, v2);
 134                                                         boolean eq = GraphComparator.compareValue(g, l0 , s1.getObject(), s2.getObject());
 135
 136                                                         if (!eq) {
 137                                                                 count++;
 138                                                         }
 139                                                         //System.out.println("Prop count values " + v1 + " " + v2);
 140                                                 } else {
 141                                                         count += propsDiffCount(g,s1.getObject(), s2.getObject());
 142                                                 }
 143                                         } else {
 144                                                 //System.out.println("Props count structural vs literal");
 145                                                 count++;
 146                                         }
 147                                         i1++;
 148                                         i2++;
 149                                         break;
 150                                 }
 151                                 case -1:{
 152                                         count++;
 153                                         i1++;
 154                                         break;
 155                                 }
 156
 157                                 case 1:{
 158                                         count++;
 159                                         i2++;
 160                                         break;
 161                                 }
 162                         }
 163
 164                 }
 165
 166                 ss1.clear();
 167                 ss2.clear();
 168                 return count;
 169         }
 170
 171 }