bundles/org.simantics.diagram.profile/src/org/simantics/diagram/profile/view/AvailableStyles.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.diagram.profile.view;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.Collections;
  17
  18 import org.simantics.browsing.ui.graph.contributor.viewpoint.ViewpointContributor;
  19 import org.simantics.db.ReadGraph;
  20 import org.simantics.db.Resource;
  21 import org.simantics.db.common.request.ObjectsWithType;
  22 import org.simantics.db.exception.DatabaseException;
  23 import org.simantics.db.layer0.adapter.Instances;
  24 import org.simantics.diagram.stubs.DiagramResource;
  25
  26 public class AvailableStyles extends ViewpointContributor<Resource> {
  27
  28     @Override
  29     public Collection<?> getContribution(ReadGraph graph, Resource runtimeDiagram) throws DatabaseException {
  30
  31         DiagramResource dr = DiagramResource.getInstance(graph);
  32         String modelURI = graph.getPossibleRelatedValue((Resource)runtimeDiagram, dr.RuntimeDiagram_HasModelURI);
  33         if (modelURI == null)
  34             return Collections.emptyList();
  35
  36         Resource model = graph.getPossibleResource(modelURI);
  37         if (model == null)
  38             return Collections.emptyList();
  39
  40         Instances query = graph.adapt(dr.Style, Instances.class);
  41
  42         ArrayList<Resource> result = new ArrayList<Resource>();
  43         result.addAll(query.find(graph, model));
  44         result.addAll(graph.syncRequest(new ObjectsWithType(model, L0.ConsistsOf, dr.Style)));
  45         return result;
  46
  47     }
  48
  49 }