1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.db.layer0.request;
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14 import org.simantics.db.ReadGraph;
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15 import org.simantics.db.Resource;
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16 import org.simantics.db.common.request.ResourceRead;
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17 import org.simantics.db.common.utils.OrderedSetUtils;
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18 import org.simantics.db.exception.DatabaseException;
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19 import org.simantics.layer0.Layer0;
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20 import org.simantics.scl.reflection.OntologyVersions;
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22 public class PossibleDiagram extends ResourceRead<Resource> {
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24 public PossibleDiagram(Resource component) {
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29 public Resource perform(ReadGraph graph) throws DatabaseException {
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31 Layer0 l0 = Layer0.getInstance(graph);
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32 String uri = OntologyVersions.getInstance().currentVersion("http://www.simantics.org/Modeling-0.0/ComponentToElement");
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33 Resource map = graph.getResource(uri);
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37 Resource element = graph.getPossibleObject(resource, map);
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38 if (element == null)
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41 return OrderedSetUtils.getSingleOwnerList(graph, element, l0.OrderedSet);
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