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 import org.slf4j.Logger;
  33 import org.slf4j.LoggerFactory;
  34
  35 /**
  36  * Requires {@link IProperty} as input.
  37  *
  38  * @author Tuukka Lehtonen
  39  */
  40 public class PropertyValueRepresentationLabelerFactory implements LabelerFactory {
  41
  42     @Override
  43     public Labeler create(PrimitiveQueryUpdater manager, final NodeContext context, LabelerKey key) {
  44         assert(manager != null);
  45         assert(context != null);
  46
  47         return new LazyGraphLabeler(manager, context, key) {
  48             @Override
  49             public Map<String, String> labels(ReadGraph graph) throws DatabaseException {
  50                 IProperty prop = (IProperty) context.getConstant(BuiltinKeys.INPUT);
  51                 Resource[] r = prop.adapt(Resource[].class);
  52
  53                 String property = LabelerUtil.safeStringRepresentation(graph, r[1]);
  54                 String value = LabelerUtil.safeStringRepresentation(graph, r[2]);
  55
  56                 return new ArrayMap<String, String>(ColumnKeys.KEYS_PROPERTY_VALUE, new String[] { property, value });
  57             }
  58
  59             @Override
  60             public Modifier getModifier(ModificationContext modificationContext, String key) {
  61                 ISessionContext session = Simantics.getSessionContext();
  62                 if (session == null)
  63                     return null;
  64
  65                 IProperty prop = (IProperty) context.getConstant(BuiltinKeys.INPUT);
  66                 Resource[] r = prop.adapt(Resource[].class);
  67
  68                 if (ColumnKeys.VALUE.equals(key)) {
  69                     try {
  70                         EnumerationValue<Resource> enu = session.getSession().syncRequest(new GetEnumerationValue(r[2]));
  71                         if (enu != null) {
  72                             return new GraphEnumerationModifier(session.getSession(), r[0], r[1], enu.getEnumeration(), enu.getEnumeratedValue());
  73                         } else {
  74                             return new GraphFactoryStringModifier(r[0], r[1], r[2], session.getSession());
  75                         }
  76                     } catch (DatabaseException e) {
  77                         throw new RuntimeException(e);
  78                     }
  79                 }
  80                 return null;
  81             }
  82
  83             @Override
  84             public Logger getLogger() {
  85                 return LoggerFactory.getLogger(getClass());
  86             }
  87
  88         };
  89     }
  90
  91 }