bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/PropertyValueRepresentationLabelerFactory.java

   1 /*******************************************************************************
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management
   3  * in Industry THTH ry.
   4  * All rights reserved. This program and the accompanying materials
   5  * are made available under the terms of the Eclipse Public License v1.0
   6  * which accompanies this distribution, and is available at
   7  * http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  * Contributors:
  10  *     VTT Technical Research Centre of Finland - initial API and implementation
  11  *******************************************************************************/
  12 package org.simantics.browsing.ui.graph.impl;
  13
  14 import java.util.Map;
  15
  16 import org.simantics.Simantics;
  17 import org.simantics.browsing.ui.BuiltinKeys;
  18 import org.simantics.browsing.ui.BuiltinKeys.LabelerKey;
  19 import org.simantics.browsing.ui.GraphExplorer.ModificationContext;
  20 import org.simantics.browsing.ui.NodeContext;
  21 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
  22 import org.simantics.browsing.ui.common.ColumnKeys;
  23 import org.simantics.browsing.ui.common.modifiers.EnumerationValue;
  24 import org.simantics.browsing.ui.common.property.IProperty;
  25 import org.simantics.browsing.ui.content.Labeler;
  26 import org.simantics.browsing.ui.content.LabelerFactory;
  27 import org.simantics.db.ReadGraph;
  28 import org.simantics.db.Resource;
  29 import org.simantics.db.exception.DatabaseException;
  30 import org.simantics.db.management.ISessionContext;
  31 import org.simantics.utils.datastructures.ArrayMap;
  32
  33 /**
  34  * Requires {@link IProperty} as input.
  35  *
  36  * @author Tuukka Lehtonen
  37  */
  38 public class PropertyValueRepresentationLabelerFactory implements LabelerFactory {
  39
  40     @Override
  41     public Labeler create(PrimitiveQueryUpdater manager, final NodeContext context, LabelerKey key) {
  42         assert(manager != null);
  43         assert(context != null);
  44
  45         return new LazyGraphLabeler(manager, context, key) {
  46             @Override
  47             public Map<String, String> labels(ReadGraph graph) throws DatabaseException {
  48                 IProperty prop = (IProperty) context.getConstant(BuiltinKeys.INPUT);
  49                 Resource[] r = prop.adapt(Resource[].class);
  50
  51                 String property = LabelerUtil.safeStringRepresentation(graph, r[1]);
  52                 String value = LabelerUtil.safeStringRepresentation(graph, r[2]);
  53
  54                 return new ArrayMap<String, String>(ColumnKeys.KEYS_PROPERTY_VALUE, new String[] { property, value });
  55             }
  56
  57             @Override
  58             public Modifier getModifier(ModificationContext modificationContext, String key) {
  59                 ISessionContext session = Simantics.getSessionContext();
  60                 if (session == null)
  61                     return null;
  62
  63                 IProperty prop = (IProperty) context.getConstant(BuiltinKeys.INPUT);
  64                 Resource[] r = prop.adapt(Resource[].class);
  65
  66                 if (ColumnKeys.VALUE.equals(key)) {
  67                     try {
  68                         EnumerationValue<Resource> enu = session.getSession().syncRequest(new GetEnumerationValue(r[2]));
  69                         if (enu != null) {
  70                             return new GraphEnumerationModifier(session.getSession(), r[0], r[1], enu.getEnumeration(), enu.getEnumeratedValue());
  71                         } else {
  72                             return new GraphFactoryStringModifier(r[0], r[1], r[2], session.getSession());
  73                         }
  74                     } catch (DatabaseException e) {
  75                         throw new RuntimeException(e);
  76                     }
  77                 }
  78                 return null;
  79             }
  80         };
  81     }
  82
  83 }