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.ColumnKeys;
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15 import org.simantics.browsing.ui.common.ErrorLogger;
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16 import org.simantics.browsing.ui.content.Labeler.Modifier;
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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.Session;
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20 import org.simantics.db.Statement;
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21 import org.simantics.db.WriteGraph;
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22 import org.simantics.db.common.primitiverequest.PossibleAdapter;
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23 import org.simantics.db.common.request.WriteRequest;
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24 import org.simantics.db.exception.DatabaseException;
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25 import org.simantics.db.layer0.adapter.StringModifier;
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26 import org.simantics.db.layer0.adapter.StringModifierFactory;
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29 * @author Tuukka Lehtonen
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31 public class SingleObjectStringPropertyModifierRule implements ModifierRule {
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33 private Resource relation;
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34 private Resource propertyRelation;
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36 public SingleObjectStringPropertyModifierRule(ReadGraph graph, String relationURI, String propertyRelationURI) throws DatabaseException {
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37 this.relation = graph.getResource(relationURI);
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38 this.propertyRelation = graph.getResource(propertyRelationURI);
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42 public boolean isCompatible(Class<?> contentType) {
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43 return contentType.equals(Resource.class);
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47 public Modifier getModifier(ReadGraph graph, Object content,
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48 String columnKey) throws DatabaseException {
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49 if(!ColumnKeys.SINGLE.equals(columnKey))
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51 if(!(content instanceof Resource))
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54 Resource resource_ = (Resource)content;
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56 Resource resource = graph.getSingleObject(resource_, relation);
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58 final Statement nameStm = graph.getPossibleStatement(resource, propertyRelation);
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59 if (nameStm == null)
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62 StringModifierFactory smf = graph.getPossibleAdapter(resource, StringModifierFactory.class);
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64 final StringModifier sm = smf.createModifier(graph, propertyRelation, nameStm.getObject());
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66 return modifierFor(graph.getSession(), sm, nameStm.getObject());
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69 return new L0StringModifier(graph.getSession(), resource, propertyRelation, nameStm.getObject());
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72 private Modifier modifierFor(final Session session, final StringModifier sm, final Resource valueResource) {
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73 return new Modifier() {
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75 public String getValue() {
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77 return session.syncRequest(new PossibleAdapter<String>(valueResource, String.class));
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78 } catch (DatabaseException e) {
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79 ErrorLogger.defaultLogError(e);
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84 public String isValid(String label) {
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85 return sm.isValid(label);
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88 public void modify(final String label) {
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90 session.syncRequest(new WriteRequest() {
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92 public void perform(WriteGraph graph) throws DatabaseException {
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93 sm.modify(graph, label);
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96 } catch (DatabaseException e) {
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97 ErrorLogger.defaultLogError(e);
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