bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ClassificationsRequest.java

   1 package org.simantics.db.layer0.request;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.HashSet;\r
   5 import java.util.Set;\r
   6 \r
   7 import org.simantics.db.ReadGraph;\r
   8 import org.simantics.db.Resource;\r
   9 import org.simantics.db.common.request.UnaryRead;\r
  10 import org.simantics.db.exception.DatabaseException;\r
  11 \r
  12 public class ClassificationsRequest extends UnaryRead<Collection<Resource>, Set<String>> {\r
  13 \r
  14         public ClassificationsRequest(Collection<Resource> principalTypes) {\r
  15                 super(principalTypes);\r
  16         }\r
  17 \r
  18         @Override\r
  19         public Set<String> perform(ReadGraph graph) throws DatabaseException {\r
  20         Set<String> result = new HashSet<String>(parameter.size());\r
  21         Set<Resource> allTypes = new HashSet<Resource>(parameter);\r
  22         for(Resource principalType : parameter) allTypes.addAll(graph.getSupertypes(principalType));\r
  23         for(Resource type : allTypes) {\r
  24                 String uri = graph.getPossibleURI(type);\r
  25                 if(uri != null) result.add(uri);\r
  26         }\r
  27         return result;\r
  28         }\r
  29 \r
  30 }\r