bundles/org.simantics.diagram/src/org/simantics/diagram/query/FlagTypeVisuals.java

   1 /*******************************************************************************
   2  * Copyright (c) 2012 Association for Decentralized Information Management in
   3  * 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.query;
  13
  14 import java.util.ArrayList;
  15 import java.util.Collection;
  16 import java.util.Collections;
  17 import java.util.List;
  18
  19 import org.simantics.databoard.Bindings;
  20 import org.simantics.db.ReadGraph;
  21 import org.simantics.db.Resource;
  22 import org.simantics.db.common.request.ResourceRead;
  23 import org.simantics.db.common.utils.ListUtils;
  24 import org.simantics.db.exception.DatabaseException;
  25 import org.simantics.diagram.stubs.DiagramResource;
  26 import org.simantics.layer0.Layer0;
  27 import org.simantics.modeling.template2d.ontology.Template2dResource;
  28 import org.simantics.scenegraph.ontology.ScenegraphResources;
  29
  30 /**
  31  * @author Tuukka Lehtonen
  32  */
  33 public class FlagTypeVisuals extends ResourceRead<List<FlagTypeVisual>> {
  34
  35     public FlagTypeVisuals(Resource flagTable) {
  36         super(flagTable);
  37     }
  38
  39     @Override
  40     public List<FlagTypeVisual> perform(ReadGraph g) throws DatabaseException {
  41         Layer0 L0 = Layer0.getInstance(g);
  42         ScenegraphResources SG = ScenegraphResources.getInstance(g);
  43
  44         Resource list = g.getPossibleObject(resource, SG.Node_children);
  45         if (list == null || !g.isInstanceOf(list, L0.List))
  46             return Collections.emptyList();
  47
  48         DiagramResource DIA = DiagramResource.getInstance(g);
  49         Template2dResource TEMPLATE2D = Template2dResource.getInstance(g);
  50
  51         Collection<Resource> flagTypeVisuals = ListUtils.toList(g, list);
  52         List<FlagTypeVisual> result = new ArrayList<FlagTypeVisual>(flagTypeVisuals.size());
  53
  54         for (Resource flagTypeVisual : flagTypeVisuals) {
  55             if (!g.isInstanceOf(flagTypeVisual, TEMPLATE2D.FlagTypeVisual))
  56                 continue;
  57
  58             String reference = null;
  59             String pattern = null;
  60             Resource visualComposite = null;
  61
  62             Collection<Resource> children = g.getObjects(flagTypeVisual, L0.ConsistsOf);
  63             for (Resource child : children) {
  64                 if (g.isInstanceOf(child, TEMPLATE2D.FlagTypeVisual_Filter)) {
  65                     reference = g.getPossibleRelatedValue2(child, TEMPLATE2D.FlagTypeVisual_Filter_HasProperty, Bindings.STRING);
  66                     pattern = g.getPossibleRelatedValue2(child, TEMPLATE2D.FlagTypeVisual_Filter_HasPattern, Bindings.STRING);
  67                 }
  68                 if (g.isInstanceOf(child, DIA.Scenegraph_Composite)) {
  69                     visualComposite = child;
  70                 }
  71             }
  72
  73             if (visualComposite != null)
  74                 result.add( new FlagTypeVisual(flagTypeVisual, reference, pattern, visualComposite) );
  75         }
  76
  77         return result;
  78     }
  79
  80 }