bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/viewpoint/ContextOutputViewpointContributorImpl.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.viewpoint;
  13
  14 import java.util.Collection;
  15
  16 import org.simantics.browsing.ui.BuiltinKeys;
  17 import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;
  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.ViewpointContribution;
  23 import org.simantics.browsing.ui.content.ViewpointContributionFactory;
  24 import org.simantics.browsing.ui.graph.impl.contribution.ViewpointContributionImpl;
  25 import org.simantics.db.ReadGraph;
  26 import org.simantics.db.exception.DatabaseException;
  27 import org.simantics.layer0.Layer0;
  28 import org.simantics.utils.ReflectionUtils;
  29
  30 abstract public class ContextOutputViewpointContributorImpl<T> implements Contributor<ViewpointContributionFactory> {
  31
  32     abstract public Collection<NodeContext> getContribution(ReadGraph graph, T input) throws DatabaseException;
  33
  34     final private Class<?> clazz;
  35     protected Layer0 b;
  36
  37         public String getViewpointId() {
  38                 return "Standard";
  39         }
  40
  41     @Override
  42     public Tester getNodeContextTester() {
  43         return null;
  44     }
  45
  46     public ContextOutputViewpointContributorImpl() {
  47         clazz = ReflectionUtils.getSingleParameterType(getClass());
  48     }
  49
  50     public ContextOutputViewpointContributorImpl(Class<?> clazz) {
  51         this.clazz = clazz;
  52     }
  53
  54     @Override
  55     public ViewpointContributionFactory getFactory() {
  56
  57         return new ViewpointContributionFactory() {
  58
  59             @Override
  60             public String getViewpointId() {
  61                 return ContextOutputViewpointContributorImpl.this.getViewpointId();
  62             }
  63
  64             @Override
  65             public ViewpointContribution create(final PrimitiveQueryUpdater updater, NodeContext context, final ViewpointContributionKey key) {
  66
  67                 return new ViewpointContributionImpl(updater, context, key) {
  68
  69                     @SuppressWarnings("unchecked")
  70                     @Override
  71                     public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException {
  72
  73                         T input = (T)context.getConstant(BuiltinKeys.INPUT);
  74                         b = Layer0.getInstance(graph);
  75                         return ContextOutputViewpointContributorImpl.this.getContribution(graph, input);
  76
  77                     }
  78
  79                     @Override
  80                     public Tester getNodeContextTester() {
  81                         return ContextOutputViewpointContributorImpl.this.getNodeContextTester();
  82                     }
  83
  84                     @Override
  85                     public Class<?> getInputClass() {
  86                         return ContextOutputViewpointContributorImpl.this.getInputClass();
  87                     }
  88
  89                 };
  90
  91             }
  92
  93         };
  94
  95     }
  96
  97     @Override
  98     public Class<?> getInputClass() {
  99         return clazz;
 100     }
 101
 102 }