tests/org.simantics.db.tests/src/org/simantics/db/tests/performance/read/TypeSetAndString.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.db.tests.performance.read;
  13
  14 import java.util.Set;
  15
  16 import org.simantics.databoard.Bindings;
  17 import org.simantics.db.ReadGraph;
  18 import org.simantics.db.Resource;
  19 import org.simantics.db.common.request.ResourceRead;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.service.CollectionSupport;
  22 import org.simantics.layer0.Layer0;
  23 import org.simantics.utils.datastructures.Pair;
  24
  25 public class TypeSetAndString extends ResourceRead<Pair<Set<Resource>, String>> {
  26
  27     public TypeSetAndString(Resource type) {
  28         super(type);
  29     }
  30
  31     @Override
  32     public Pair<Set<Resource>, String> perform(ReadGraph graph) throws DatabaseException {
  33
  34         Layer0 L0 = Layer0.getInstance(graph);
  35         CollectionSupport cs = graph.getService(CollectionSupport.class);
  36         Set<Resource> types = cs.createSet();
  37
  38         types.add(resource);
  39         types.addAll(graph.getSupertypes(resource));
  40
  41         final StringBuilder b = new StringBuilder();
  42         boolean first = true;
  43         for (Resource type : types) {
  44                 String name = graph.getPossibleRelatedValue(type, L0.HasName, Bindings.STRING);
  45             if (!first) b.append(" ");
  46             first = false;
  47         }
  48
  49         return Pair.make(types, b.toString());
  50
  51     }
  52
  53 }