bundles/org.simantics.document.linking.ui/src/org/simantics/document/linking/report/templates/PathComparator.java

   1 package org.simantics.document.linking.report.templates;\r
   2 \r
   3 import java.util.Comparator;\r
   4 import java.util.List;\r
   5 \r
   6 import org.simantics.db.ReadGraph;\r
   7 import org.simantics.db.Resource;\r
   8 import org.simantics.db.common.utils.NameUtils;\r
   9 import org.simantics.db.exception.DatabaseException;\r
  10 import org.simantics.utils.strings.AlphanumComparator;\r
  11 \r
  12 public class PathComparator implements Comparator<List<Resource>>{\r
  13         \r
  14         private ReadGraph graph;\r
  15         \r
  16         public PathComparator(ReadGraph graph) {\r
  17                 this.graph = graph;\r
  18         }\r
  19         \r
  20         @Override\r
  21         public int compare(List<Resource> o1, List<Resource> o2) {\r
  22                 int common = Math.min(o1.size(), o2.size());\r
  23                 for (int i = 0; i < common; i++) {\r
  24                         if (o1.get(i).equals(o2.get(i)))\r
  25                                 continue;\r
  26                         try {\r
  27                                 Resource r1 = o1.get(i);\r
  28                                 Resource r2 = o2.get(i);\r
  29                                 String l1 = getText(r1);\r
  30                                 String l2 = getText(r2);\r
  31                                 int c = AlphanumComparator.COMPARATOR.compare(l1, l2);\r
  32                                 if (c == 0) {\r
  33                                         if (r1.getResourceId() > r2.getResourceId())\r
  34                                                 return 1;\r
  35                                         if (r1.getResourceId() < r2.getResourceId())\r
  36                                                 return -1;\r
  37                                         return 0;\r
  38                                 }\r
  39                                 return c;\r
  40                         } catch (DatabaseException e) {\r
  41                                 return 0;\r
  42                         }\r
  43                 }\r
  44                 return o1.size() - o2.size();\r
  45         }\r
  46         \r
  47         public String getText(Resource r) throws DatabaseException {\r
  48                 String l1 = NameUtils.getSafeLabel(graph, r);\r
  49                 if (l1.length() == 0)\r
  50                         l1 = NameUtils.getSafeName(graph, r);\r
  51                 return l1;\r
  52         }\r
  53 \r
  54 }\r