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;
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14 import java.util.ArrayList;
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15 import java.util.Collection;
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17 import org.simantics.db.ReadGraph;
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18 import org.simantics.db.RequestProcessor;
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19 import org.simantics.db.Resource;
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20 import org.simantics.db.common.request.ResourceRead2;
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21 import org.simantics.db.exception.DatabaseException;
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22 import org.simantics.db.request.Read;
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23 import org.simantics.diagram.stubs.DiagramResource;
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24 import org.simantics.diagram.symbolcontribution.CompositeSymbolProviderFactory;
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25 import org.simantics.diagram.symbolcontribution.ISymbolProvider;
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26 import org.simantics.diagram.symbolcontribution.SymbolContribution;
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27 import org.simantics.diagram.symbolcontribution.SymbolProviderFactory;
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28 import org.simantics.diagram.symbollibrary.ISymbolGroup;
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29 import org.simantics.diagram.symbollibrary.ISymbolItem;
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30 import org.simantics.utils.ui.AdaptionUtils;
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33 * @author Tuukka Lehtonen
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35 public final class DiagramTypeUtils {
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37 public static SymbolProviderFactory readSymbolProviderFactory(RequestProcessor processor, final Resource diagram) throws DatabaseException {
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38 return processor.syncRequest(new Read<SymbolProviderFactory>() {
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40 public SymbolProviderFactory perform(ReadGraph graph) throws DatabaseException {
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41 return readSymbolProviderFactory(graph, diagram);
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46 public static SymbolProviderFactory readSymbolProviderFactory(ReadGraph graph, Resource diagram) throws DatabaseException {
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47 DiagramResource dr = DiagramResource.getInstance(graph);
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49 Collection<SymbolProviderFactory> factories = new ArrayList<SymbolProviderFactory>();
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51 for (Resource diagramType : graph.getTypes(diagram)) {
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52 for (Resource symbolContribution : graph.getObjects(diagramType, dr.HasSymbolContribution)) {
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53 // TODO: consider how to react to possible adaption failures
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54 SymbolContribution contribution = graph.adaptUnique(symbolContribution, SymbolContribution.class);
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55 factories.add(contribution.create(graph, diagram));
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59 return new CompositeSymbolProviderFactory(factories);
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62 public static ISymbolProvider readSymbolContributions(RequestProcessor processor, final Resource diagram) throws DatabaseException {
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63 return processor.syncRequest(new Read<ISymbolProvider>() {
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65 public ISymbolProvider perform(ReadGraph graph) throws DatabaseException {
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66 return readSymbolContributions(graph, diagram);
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71 public static ISymbolProvider readSymbolContributions(ReadGraph graph, Resource diagram) throws DatabaseException {
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72 return readSymbolProviderFactory(graph, diagram).create(graph);
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76 public static boolean symbolAllowedOnDiagram(RequestProcessor processor, ISymbolItem symbol, final Resource diagram) throws DatabaseException {
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77 return symbolFromGroupAllowedOnDiagram(processor, symbol.getGroup(), diagram);
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80 public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, ISymbolGroup group, final Resource diagram) throws DatabaseException {
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81 final Resource groupResource = AdaptionUtils.adaptToSingle(group, Resource.class);
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82 return symbolFromGroupAllowedOnDiagram(processor, groupResource, diagram);
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85 public static boolean symbolFromGroupAllowedOnDiagram(RequestProcessor processor, final Resource symbolGroup, final Resource diagram) throws DatabaseException {
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86 // no semantic info, no validation
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87 if (diagram == null)
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89 if (symbolGroup == null)
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92 return processor.syncRequest(new ResourceRead2<Boolean>(diagram, symbolGroup) {
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94 public Boolean perform(ReadGraph graph) throws DatabaseException {
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95 DiagramResource DIA = DiagramResource.getInstance(graph);
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96 for (Resource diagramType : graph.getTypes(diagram)) {
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97 for (Resource symbolContribution : graph.getObjects(diagramType, DIA.HasSymbolContribution)) {
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98 for (Resource symbolLibrary : graph.getObjects(symbolContribution, DIA.BasicSymbolContributionHasSymbolLibrary)) {
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99 if (symbolGroup.equals(symbolLibrary))
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100 return Boolean.TRUE;
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104 return Boolean.FALSE;
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