bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/contributor/viewpoint/FinalViewpointContributorImpl.java

   1 /*******************************************************************************\r
   2  * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
   3  * in Industry THTH ry.\r
   4  * All rights reserved. This program and the accompanying materials\r
   5  * are made available under the terms of the Eclipse Public License v1.0\r
   6  * which accompanies this distribution, and is available at\r
   7  * http://www.eclipse.org/legal/epl-v10.html\r
   8  *\r
   9  * Contributors:\r
  10  *     VTT Technical Research Centre of Finland - initial API and implementation\r
  11  *******************************************************************************/\r
  12 package org.simantics.browsing.ui.graph.impl.contributor.viewpoint;\r
  13 \r
  14 import java.util.Collection;\r
  15 \r
  16 import org.simantics.browsing.ui.BuiltinKeys;\r
  17 import org.simantics.browsing.ui.NodeContext;\r
  18 import org.simantics.browsing.ui.PrimitiveQueryUpdater;\r
  19 import org.simantics.browsing.ui.Tester;\r
  20 import org.simantics.browsing.ui.BuiltinKeys.ViewpointContributionKey;\r
  21 import org.simantics.browsing.ui.common.NodeContextUtil;\r
  22 import org.simantics.browsing.ui.content.Contributor;\r
  23 import org.simantics.browsing.ui.content.ViewpointContribution;\r
  24 import org.simantics.browsing.ui.content.ViewpointContributionFactory;\r
  25 import org.simantics.browsing.ui.graph.impl.contribution.FinalViewpointContributionImpl;\r
  26 import org.simantics.db.ReadGraph;\r
  27 import org.simantics.db.exception.DatabaseException;\r
  28 import org.simantics.utils.ReflectionUtils;\r
  29 \r
  30 abstract public class FinalViewpointContributorImpl<T> implements Contributor<ViewpointContributionFactory> {\r
  31 \r
  32     abstract public Collection<?> getContribution(ReadGraph graph, T input);\r
  33 \r
  34     abstract public String getViewpointId();\r
  35 \r
  36     final private Class<?> clazz;\r
  37 \r
  38     @Override\r
  39     public Tester getNodeContextTester() {\r
  40         return null;\r
  41     }\r
  42 \r
  43     public FinalViewpointContributorImpl() {\r
  44         clazz = ReflectionUtils.getSingleParameterType(getClass());\r
  45     }\r
  46 \r
  47     public FinalViewpointContributorImpl(Class<?> clazz) {\r
  48         this.clazz = clazz;\r
  49     }\r
  50 \r
  51     @Override\r
  52     public ViewpointContributionFactory getFactory() {\r
  53 \r
  54         return new ViewpointContributionFactory() {\r
  55 \r
  56             @Override\r
  57             public String getViewpointId() {\r
  58                 return FinalViewpointContributorImpl.this.getViewpointId();\r
  59             }\r
  60 \r
  61             @Override\r
  62             public ViewpointContribution create(final PrimitiveQueryUpdater updater, NodeContext context, final ViewpointContributionKey key) {\r
  63 \r
  64                 return new FinalViewpointContributionImpl(updater, context, key) {\r
  65 \r
  66                     @SuppressWarnings("unchecked")\r
  67                     @Override\r
  68                     public Collection<NodeContext> children(ReadGraph graph, NodeContext context) throws DatabaseException {\r
  69 \r
  70                         T input = (T)context.getConstant(BuiltinKeys.INPUT);\r
  71                         return NodeContextUtil.toContextCollectionWithInput(FinalViewpointContributorImpl.this.getContribution(graph, input));\r
  72 \r
  73                     }\r
  74 \r
  75                     @Override\r
  76                     public Tester getNodeContextTester() {\r
  77                         return FinalViewpointContributorImpl.this.getNodeContextTester();\r
  78                     }\r
  79 \r
  80                     @Override\r
  81                     public Class<?> getInputClass() {\r
  82                         return FinalViewpointContributorImpl.this.getInputClass();\r
  83                     }\r
  84 \r
  85                 };\r
  86 \r
  87             }\r
  88 \r
  89         };\r
  90 \r
  91     }\r
  92 \r
  93     @Override\r
  94     public Class<?> getInputClass() {\r
  95         return clazz;\r
  96     }\r
  97 \r
  98 }\r