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