bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/StringRepresentationLabelerFactory.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.Collections;\r
  15 import java.util.Map;\r
  16 \r
  17 import org.simantics.Simantics;\r
  18 import org.simantics.browsing.ui.BuiltinKeys;\r
  19 import org.simantics.browsing.ui.BuiltinKeys.LabelerKey;\r
  20 import org.simantics.browsing.ui.GraphExplorer.ModificationContext;\r
  21 import org.simantics.browsing.ui.NodeContext;\r
  22 import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
  23 import org.simantics.browsing.ui.common.ColumnKeys;\r
  24 import org.simantics.browsing.ui.content.Labeler;\r
  25 import org.simantics.browsing.ui.content.LabelerFactory;\r
  26 import org.simantics.db.ReadGraph;\r
  27 import org.simantics.db.Resource;\r
  28 import org.simantics.db.WriteGraph;\r
  29 import org.simantics.db.exception.DatabaseException;\r
  30 import org.simantics.db.management.ISessionContext;\r
  31 \r
  32 public class StringRepresentationLabelerFactory implements LabelerFactory {\r
  33 \r
  34     String column = ColumnKeys.SINGLE;\r
  35 \r
  36     //static int counter = 0;\r
  37 \r
  38     public StringRepresentationLabelerFactory() {\r
  39     }\r
  40 \r
  41     public StringRepresentationLabelerFactory(String column) {\r
  42         this.column = column;\r
  43     }\r
  44 \r
  45     @Override\r
  46     public Labeler create(PrimitiveQueryUpdater updater, final NodeContext context, LabelerKey key) {\r
  47         assert(updater != null);\r
  48         assert(context != null);\r
  49 \r
  50         return new LazyGraphLabeler(updater, context, key) {\r
  51             @Override\r
  52             public Map<String, String> labels(ReadGraph graph) throws DatabaseException {\r
  53 //              if((counter++ % 5000) == 0) System.out.println("L" + counter);\r
  54                 final Resource r = (Resource) context.getConstant(BuiltinKeys.INPUT);\r
  55                 String representation = LabelerUtil.safeStringRepresentation(graph, r);\r
  56                 return Collections.singletonMap(column, representation);\r
  57             }\r
  58             @Override\r
  59             public Modifier getModifier(ModificationContext modificationContext, String key) {\r
  60                 ISessionContext session = Simantics.getSessionContext();\r
  61                 if (session == null)\r
  62                     return null;\r
  63 \r
  64                 if (column.equals(key)) {\r
  65                     return new GraphStringModifier(context, session.getSession()) {\r
  66                         @Override\r
  67                         public void doModify(WriteGraph graph, String label) throws DatabaseException {\r
  68                             getModifier().modify(graph, label);\r
  69                         }\r
  70                         @Override\r
  71                         public String createModifierInput(String fromLabel) {\r
  72                             return fromLabel;\r
  73                         }\r
  74                     };\r
  75                 }\r
  76                 return null;\r
  77             }\r
  78         };\r
  79     }\r
  80 \r
  81 }\r