1 /*******************************************************************************
\r
2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
\r
3 * in Industry THTH ry.
\r
4 * All rights reserved. This program and the accompanying materials
\r
5 * are made available under the terms of the Eclipse Public License v1.0
\r
6 * which accompanies this distribution, and is available at
\r
7 * http://www.eclipse.org/legal/epl-v10.html
\r
10 * VTT Technical Research Centre of Finland - initial API and implementation
\r
11 *******************************************************************************/
\r
12 package org.simantics.db.layer0.variable;
\r
14 import org.simantics.db.ReadGraph;
\r
15 import org.simantics.db.Resource;
\r
16 import org.simantics.db.exception.DatabaseException;
\r
18 public final class VariablesImpl {
\r
20 public final static int nextSeparator(String path, int startPosition) {
\r
21 int len = path.length();
\r
22 for (int i = startPosition; i < len; ++i) {
\r
23 char c = path.charAt(i);
\r
24 if (c == '/' || c == '#')
\r
30 public final static Resource getFirst(ReadGraph graph, Resource type, String path, int startPosition) throws DatabaseException {
\r
32 int position = nextSeparator(path, startPosition);
\r
33 if (position == -1) {
\r
34 Resource r = graph.getResource(path);
\r
35 if (graph.isInstanceOf(r, type))
\r
40 Resource r = graph.getResource(path.substring(0, position));
\r
41 if (graph.isInstanceOf(r, type)) {
\r
44 return getFirst(graph, type, path, position + 1);
\r