1 /*******************************************************************************
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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
10 * VTT Technical Research Centre of Finland - initial API and implementation
11 *******************************************************************************/
12 package org.simantics.browsing.ui.graph.impl.request;
14 import org.simantics.databoard.Bindings;
15 import org.simantics.db.ReadGraph;
16 import org.simantics.db.Resource;
17 import org.simantics.db.common.request.ResourceRead;
18 import org.simantics.db.common.utils.NameUtils;
19 import org.simantics.db.exception.DatabaseException;
20 import org.simantics.db.exception.ValidationException;
21 import org.simantics.layer0.Layer0;
24 * @author Tuukka Lehtonen
26 public class GetLabel extends ResourceRead<String> {
28 public GetLabel(Resource r) {
33 public String perform(ReadGraph graph) throws DatabaseException {
34 Layer0 l0 = Layer0.getInstance(graph);
35 String label = graph.getPossibleRelatedValue(resource, l0.HasLabel, Bindings.STRING);
37 label = graph.getPossibleRelatedValue(resource, l0.HasName, Bindings.STRING);
39 String rep = NameUtils.getSafeName(graph, resource);
40 throw new ValidationException("Resource '" + rep + "' does not have a Label or a Name property.");