bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/labeler/ColumnLabelerContributorImpl.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.contributor.labeler;
  13
  14 import java.util.Map;
  15
  16 import org.simantics.browsing.ui.BuiltinKeys;
  17 import org.simantics.browsing.ui.BuiltinKeys.LabelerKey;
  18 import org.simantics.browsing.ui.NodeContext;
  19 import org.simantics.browsing.ui.PrimitiveQueryUpdater;
  20 import org.simantics.browsing.ui.Tester;
  21 import org.simantics.browsing.ui.content.Contributor;
  22 import org.simantics.browsing.ui.content.Labeler;
  23 import org.simantics.browsing.ui.content.Labeler.Modifier;
  24 import org.simantics.browsing.ui.content.LabelerFactory;
  25 import org.simantics.browsing.ui.graph.impl.contribution.LabelerContributionImpl;
  26 import org.simantics.db.ReadGraph;
  27 import org.simantics.db.UndoContext;
  28 import org.simantics.db.exception.DatabaseException;
  29 import org.simantics.utils.ReflectionUtils;
  30
  31 abstract public class ColumnLabelerContributorImpl<T> implements Contributor<LabelerFactory> {
  32
  33     abstract public Map<String, String> getLabel(ReadGraph graph, T input) throws DatabaseException;
  34
  35     public int getCategory(ReadGraph graph, T input) throws DatabaseException {
  36         return 0;
  37     }
  38
  39     public Modifier getModifier(ReadGraph graph, UndoContext context, T input, String columnKey) throws DatabaseException {
  40         return null;
  41     }
  42
  43     final private Class<?> clazz;
  44
  45     @Override
  46     public Tester getNodeContextTester() {
  47         return null;
  48     }
  49
  50     public ColumnLabelerContributorImpl() {
  51         clazz = ReflectionUtils.getSingleParameterType(getClass());
  52     }
  53
  54     public ColumnLabelerContributorImpl(Class<?> clazz) {
  55         this.clazz = clazz;
  56     }
  57
  58     @Override
  59     public LabelerFactory getFactory() {
  60
  61         return new LabelerFactory() {
  62
  63             @Override
  64             public Labeler create(final PrimitiveQueryUpdater updater, NodeContext context, final LabelerKey key) {
  65
  66                 return new LabelerContributionImpl(updater, context, key) {
  67
  68                     @SuppressWarnings("unchecked")
  69                     @Override
  70                     public Map<String, String> labels(ReadGraph graph, NodeContext context) throws DatabaseException {
  71
  72                         T input = (T)context.getConstant(BuiltinKeys.INPUT);
  73
  74                         return ColumnLabelerContributorImpl.this.getLabel(graph, input);
  75
  76                     }
  77
  78                     @SuppressWarnings("unchecked")
  79                     @Override
  80                     public int category(ReadGraph graph, NodeContext context) throws DatabaseException {
  81
  82                         T input = (T)context.getConstant(BuiltinKeys.INPUT);
  83
  84                         return ColumnLabelerContributorImpl.this.getCategory(graph, input);
  85
  86                     }
  87
  88                     @SuppressWarnings("unchecked")
  89                     @Override
  90                     public Modifier getModifier(ReadGraph graph, UndoContext undoContext, NodeContext context, String columnKey) throws DatabaseException {
  91
  92                         T input = (T)context.getConstant(BuiltinKeys.INPUT);
  93
  94                         return ColumnLabelerContributorImpl.this.getModifier(graph, undoContext, input, columnKey);
  95
  96                     }
  97
  98                     @Override
  99                     public String toString() {
 100                         return ColumnLabelerContributorImpl.this.toString();
 101                     }
 102
 103                 };
 104
 105             }
 106
 107         };
 108
 109     }
 110
 111     @Override
 112     public Class<?> getInputClass() {
 113         return clazz;
 114     }
 115
 116 }