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

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