bundles/org.simantics.structural.ui/src/org/simantics/structural/ui/modelBrowser/contributions/LibraryViewpointContributor.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.structural.ui.modelBrowser.contributions;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16
  17 import org.simantics.browsing.ui.graph.contributor.viewpoint.ViewpointContributor;
  18 import org.simantics.db.ReadGraph;
  19 import org.simantics.db.Resource;
  20 import org.simantics.db.exception.DatabaseException;
  21 import org.simantics.db.request.Read;
  22 import org.simantics.structural.ui.modelBrowser.nodes.AbstractNode;
  23
  24 /**
  25  * @author Tuukka Lehtonen
  26  *
  27  * @param <T> input library node type
  28  */
  29 public abstract class LibraryViewpointContributor<T extends AbstractNode> extends ViewpointContributor<T> {
  30
  31     protected abstract Read<Collection<Resource>> getChildRequest(ReadGraph graph, T lib) throws DatabaseException;
  32
  33     @Override
  34     public final Collection<?> getContribution(ReadGraph graph, T lib) throws DatabaseException {
  35         ArrayList<AbstractNode> result = new ArrayList<AbstractNode>();
  36         Read<Collection<Resource>> read = getChildRequest(graph, lib);
  37         if (read != null) {
  38             for (Resource r : graph.syncRequest(read)) {
  39                 try {
  40                     AbstractNode n = graph.adapt(r, AbstractNode.class);
  41                     result.add(n);
  42                 } catch (DatabaseException e) {
  43                     e.printStackTrace();
  44                 }
  45             }
  46         }
  47         return result;
  48     }
  49
  50     @Override
  51     public String getViewpointId() {
  52         return "Standard";
  53     }
  54
  55 }