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.browsing.ui.graph.impl;
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14 import java.util.Collection;
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16 import org.simantics.browsing.ui.common.modifiers.EnumeratedValue;
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17 import org.simantics.browsing.ui.common.modifiers.Enumeration;
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18 import org.simantics.databoard.Bindings;
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19 import org.simantics.db.Resource;
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20 import org.simantics.db.Session;
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21 import org.simantics.db.WriteGraph;
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22 import org.simantics.db.common.utils.NameUtils;
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23 import org.simantics.db.exception.DatabaseException;
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24 import org.simantics.db.exception.ValidationException;
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25 import org.simantics.layer0.Layer0;
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28 * A graph resource based EnumerationModifier utility implementation.
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30 * @author Tuukka Lehtonen
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32 public class GraphEnumerationModifier extends GraphEnumerationModifierBase<Resource> {
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34 protected final Resource subject;
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35 protected final Resource relation;
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37 public GraphEnumerationModifier(Session session, Resource subject, Resource relation, Enumeration<Resource> enumeration, Resource value) {
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38 this(session, subject, relation, enumeration, enumeration.find(value));
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41 public GraphEnumerationModifier(Session session, Resource subject, Resource relation, Enumeration<Resource> enumeration, EnumeratedValue<Resource> value) {
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42 super(session, enumeration, value);
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43 if (subject == null)
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44 throw new NullPointerException("null subject");
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45 if (relation== null)
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46 throw new NullPointerException("null relation");
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48 this.subject = subject;
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49 this.relation = relation;
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53 protected void modifyWithObject(WriteGraph graph, Resource oldEnumObject, Resource enumObject) throws DatabaseException {
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54 // System.out.println("subject: " + NameUtils.getSafeName(graph, subject));
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55 // System.out.println("relation: " + NameUtils.getSafeName(graph, relation));
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56 // System.out.println("old enum object: " + NameUtils.getSafeName(graph, oldEnumObject));
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57 // System.out.println("enum object: " + NameUtils.getSafeName(graph, enumObject));
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59 // FIXME: this is a hackish way to support enumeration style editing for boolean values.
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60 // See GetEnumeration for why this works.
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61 Layer0 l0 = Layer0.getInstance(graph);
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62 if (l0.True.equals(enumObject) || l0.False.equals(enumObject)) {
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63 Boolean value = Boolean.valueOf(l0.True.equals(enumObject));
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64 // NOTE: this assumes that relation is functional, otherwise it will fail.
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65 Collection<Resource> props = graph.getObjects(subject, relation);
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66 if (props.size() > 1) {
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67 throw new ValidationException("Multiple (" + props.size() + ") '" + NameUtils.getSafeName(graph, relation) + "' properties found for resource '" + NameUtils.getSafeName(graph, subject) + "'. Expected functional property.");
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69 graph.claimLiteral(subject, relation, value, Bindings.BOOLEAN);
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71 if (oldEnumObject != null)
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72 //graph.deny(subject, relation, oldEnumObject);
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73 graph.deny(subject, relation);
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74 if (enumObject != null)
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75 graph.claim(subject, relation, null, enumObject);
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