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

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