1 /*******************************************************************************
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2 * Copyright (c) 2007, 2011 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.browsing.ui.model.modifiers;
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14 import org.simantics.browsing.ui.common.ErrorLogger;
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15 import org.simantics.browsing.ui.content.Labeler.Modifier;
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16 import org.simantics.db.ReadGraph;
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17 import org.simantics.db.RequestProcessor;
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18 import org.simantics.db.Resource;
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19 import org.simantics.db.Statement;
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20 import org.simantics.db.WriteGraph;
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21 import org.simantics.db.common.primitiverequest.PossibleAdapter;
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22 import org.simantics.db.common.request.WriteRequest;
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23 import org.simantics.db.exception.DatabaseException;
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24 import org.simantics.db.layer0.adapter.StringModifier;
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25 import org.simantics.db.layer0.util.Layer0Utils;
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26 import org.simantics.db.request.Read;
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27 import org.simantics.layer0.Layer0;
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29 public class L0StringModifier implements Modifier {
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31 private final RequestProcessor processor;
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32 private final Resource subject;
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33 private final Resource propertyRelation;
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34 private final Resource literal;
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36 public L0StringModifier(RequestProcessor processor, Resource subject, Resource propertyRelation, Resource literal) {
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37 this.processor = processor;
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38 this.subject = subject;
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39 this.propertyRelation = propertyRelation;
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40 this.literal = literal;
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44 public String getValue() {
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46 return processor.syncRequest(new PossibleAdapter<String>(literal, String.class));
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47 } catch (DatabaseException e) {
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48 ErrorLogger.defaultLogError(e);
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54 public String isValid(final String label) {
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56 return processor.syncRequest(new Read<String>() {
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58 public String perform(ReadGraph graph) throws DatabaseException {
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59 StringModifier modifier = graph.adapt(literal, StringModifier.class);
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60 return modifier.isValid(label);
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63 } catch (DatabaseException e) {
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64 ErrorLogger.defaultLogError(e);
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65 return e.getMessage();
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70 public void modify(final String label) {
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72 processor.syncRequest(new WriteRequest() {
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74 public void perform(WriteGraph graph) throws DatabaseException {
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75 Layer0Utils.addCommentMetadata(graph, "Modify string");
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76 graph.markUndoPoint();
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77 Statement stm = graph.getPossibleStatement(subject, propertyRelation);
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78 if (stm.isAsserted(subject)) {
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79 Layer0 L0 = Layer0.getInstance(graph);
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80 Resource newLiteral = graph.newResource();
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81 for (Resource iof : graph.getObjects(literal, L0.InstanceOf))
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82 graph.claim(newLiteral, L0.InstanceOf, null, iof);
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83 graph.claim(subject, propertyRelation, newLiteral);
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84 StringModifier modifier = graph.adapt(newLiteral, StringModifier.class);
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85 modifier.modify(graph, label);
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87 StringModifier modifier = graph.adapt(literal, StringModifier.class);
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88 modifier.modify(graph, label);
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92 } catch (DatabaseException e) {
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93 ErrorLogger.defaultLogError(e);
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