bundles/org.simantics.diagram/src/org/simantics/diagram/query/FlagTables.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * 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.diagram.query;
  13
  14 import gnu.trove.map.hash.THashMap;
  15
  16 import java.util.Map;
  17
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.common.request.ResourceRead;
  21 import org.simantics.db.common.uri.UnescapedChildMapOfResource;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.modeling.template2d.ontology.Template2dResource;
  24
  25 /**
  26  * @author Tuukka Lehtonen
  27  */
  28 public class FlagTables extends ResourceRead<Map<String, Resource>> {
  29
  30     public FlagTables(Resource drawingTemplate) {
  31         super(drawingTemplate);
  32     }
  33
  34     @Override
  35     public Map<String, Resource> perform(ReadGraph graph) throws DatabaseException {
  36         Map<String, Resource> childMap = graph.syncRequest(new UnescapedChildMapOfResource(resource));
  37         if (childMap.isEmpty())
  38             return childMap;
  39
  40         Template2dResource TEMPLATE2D = Template2dResource.getInstance(graph);
  41         Map<String, Resource> flagTables = new THashMap<String, Resource>(childMap.size());
  42         for (Map.Entry<String, Resource> entry : childMap.entrySet()) {
  43             if (graph.isInstanceOf(entry.getValue(), TEMPLATE2D.FlagTable)) {
  44                 flagTables.put(entry.getKey(), entry.getValue());
  45             }
  46         }
  47
  48         return flagTables;
  49     }
  50
  51 }