1 /*******************************************************************************
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2 * Copyright (c) 2012 Association for Decentralized Information Management in
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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.modeling.adapters;
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14 import java.util.Collection;
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15 import java.util.Map;
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17 import org.simantics.db.ReadGraph;
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18 import org.simantics.db.Resource;
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19 import org.simantics.db.WriteGraph;
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20 import org.simantics.db.common.utils.OrderedSetUtils;
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21 import org.simantics.db.exception.DatabaseException;
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22 import org.simantics.db.layer0.adapter.impl.AbstractRemover;
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23 import org.simantics.db.layer0.util.RemoverUtil;
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24 import org.simantics.diagram.stubs.DiagramResource;
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25 import org.simantics.layer0.Layer0;
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26 import org.simantics.modeling.ModelingResources;
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27 import org.simantics.modeling.adapters.Removers.ValidationResult;
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30 * @author Tuukka Lehtonen
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31 * @see TerminalRemover
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33 public class ConnectionRelationRemover extends AbstractRemover {
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35 public ConnectionRelationRemover(Resource connectionRelation) {
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36 super(connectionRelation);
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40 public String canRemove(ReadGraph graph, Map<Object, Object> aux) throws DatabaseException {
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41 ModelingResources MOD = ModelingResources.getInstance(graph);
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42 Resource diagramConnectionRelation = null;
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43 Resource connectionRelation = graph.getPossibleObject(resource, MOD.DiagramConnectionRelationToConnectionRelation);
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44 if (connectionRelation != null)
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45 diagramConnectionRelation = resource;
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47 connectionRelation = resource;
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48 ValidationResult result = Removers.validateConnectionRelationRemoval(graph, connectionRelation, diagramConnectionRelation);
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50 return Removers.formatError(graph, result);
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55 public void remove(WriteGraph graph) throws DatabaseException {
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56 Layer0 L0 = Layer0.getInstance(graph);
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57 DiagramResource DIA = DiagramResource.getInstance(graph);
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58 ModelingResources MOD = ModelingResources.getInstance(graph);
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60 Collection<Resource> lifts = graph.getObjects(resource, DIA.Lifts);
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62 // Not necessary, this is legacy support only.
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63 for (Resource def : graph.getObjects(resource, L0.ConcernsRelation_Inverse))
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66 // Remove possible symbol terminal(s).
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67 for (Resource diagramConnectionRelation : graph.getObjects(resource, MOD.ConnectionRelationToDiagramConnectionRelation)) {
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68 removeTerminals(graph, DIA, diagramConnectionRelation);
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69 Resource diagramConnectionRelationInverse = graph.getPossibleObject(diagramConnectionRelation, L0.InverseOf);
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70 graph.deny(diagramConnectionRelation);
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71 if (diagramConnectionRelationInverse != null)
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72 graph.deny(diagramConnectionRelationInverse);
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74 removeTerminals(graph, DIA, resource);
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76 Resource connectionRelationInverse = graph.getPossibleObject(resource, L0.InverseOf);
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77 graph.deny(resource);
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78 if (connectionRelationInverse != null)
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79 graph.deny(connectionRelationInverse);
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81 if (!lifts.isEmpty())
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82 for (Resource lift : lifts)
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83 RemoverUtil.remove(graph, lift);
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86 private void removeTerminals(WriteGraph graph, DiagramResource DIA, Resource diagramConnectionRelation) throws DatabaseException {
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87 for (Resource terminal : graph.getObjects(diagramConnectionRelation, DIA.HasConnectionPoint_Inverse)) {
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88 for (Resource ownerList : OrderedSetUtils.getOwnerLists(graph, terminal, DIA.Composite)) {
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89 OrderedSetUtils.remove(graph, ownerList, terminal);
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91 RemoverUtil.remove(graph, terminal);
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