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.diagram.profile;
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14 import java.util.Collection;
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15 import java.util.HashSet;
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16 import java.util.Set;
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18 import org.simantics.db.ReadGraph;
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19 import org.simantics.db.RequestProcessor;
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20 import org.simantics.db.Resource;
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21 import org.simantics.db.common.primitiverequest.OrderedSet;
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22 import org.simantics.db.common.procedure.wrapper.SetListenerToSingleSetListener;
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23 import org.simantics.db.common.request.BinaryRead;
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24 import org.simantics.db.exception.DatabaseException;
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25 import org.simantics.db.procedure.SetListener;
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26 import org.simantics.diagram.stubs.DiagramResource;
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27 import org.simantics.scenegraph.profile.Group;
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30 * @author Tuukka Lehtonen
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32 public abstract class DiagramElementGroup implements Group {
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34 protected DiagramResource DIA;
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36 public DiagramElementGroup(ReadGraph graph) {
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37 this.DIA = DiagramResource.getInstance(graph);
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41 public void trackItems(RequestProcessor processor, final Resource runtimeDiagram, final SetListener<Resource> listener) {
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42 processor.asyncRequest(new BinaryRead<Class<?>, Resource, Collection<Resource>>(getClass(), runtimeDiagram) {
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45 public Set<Resource> perform(ReadGraph graph) throws DatabaseException {
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46 HashSet<Resource> result = new HashSet<Resource>();
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48 Resource realDiagram = graph.getPossibleObject(parameter2, DIA.RuntimeDiagram_HasConfiguration);
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49 if (realDiagram == null)
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52 Collection<Resource> elements = graph.syncRequest(new OrderedSet(realDiagram));
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53 for (Resource element : elements) {
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54 if (test(graph, element)) {
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55 result.add(element);
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62 }, new SetListenerToSingleSetListener<Resource>(listener));
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65 protected abstract boolean test(ReadGraph graph, Resource element) throws DatabaseException;
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