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