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