bundles/org.simantics.diagram/src/org/simantics/diagram/elements/ElementPropertySetter.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.elements;
  13
  14 import org.simantics.db.ReadGraph;
  15 import org.simantics.db.Resource;
  16 import org.simantics.db.exception.AdaptionException;
  17 import org.simantics.db.exception.DoesNotContainValueException;
  18 import org.simantics.db.exception.NoSingleResultException;
  19 import org.simantics.db.exception.ServiceException;
  20 import org.simantics.db.exception.ValidationException;
  21 import org.simantics.diagram.G2DUtils;
  22 import org.simantics.g2d.element.ElementHints;
  23 import org.simantics.g2d.element.ElementHints.Properties;
  24 import org.simantics.g2d.element.IElement;
  25 import org.simantics.g2d.elementclass.PlainElementPropertySetter;
  26 import org.simantics.layer0.Layer0;
  27 import org.simantics.utils.datastructures.hints.IHintContext.Key;
  28
  29 public class ElementPropertySetter extends PlainElementPropertySetter {
  30
  31     private static final long serialVersionUID = 712071316674596405L;
  32
  33     public static final ElementPropertySetter INSTANCE = new ElementPropertySetter(ElementHints.KEY_SG_NODE);
  34
  35     public ElementPropertySetter(Key key) {
  36         super(key);
  37     }
  38
  39     /**
  40      * Load default properties from graph. This is called by class factory, hence not defined in the interface
  41      *
  42      * @param element
  43      * @param r
  44      * @param g
  45      */
  46     public void loadProperties(IElement element, Resource r, ReadGraph g) {
  47         Properties properties = new Properties();
  48         Layer0 L0 = Layer0.getInstance(g);
  49         try {
  50             // This way asserts do work:
  51             for (Resource predicate : g.getPredicates(r)) {
  52                 if (g.isSubrelationOf(predicate, L0.HasProperty)) {
  53                     try {
  54                         String name = g.adapt(predicate, String.class);
  55                         Resource o = g.getPossibleObject(r, predicate);
  56                         if(o != null) { // FIXME: there should always be an object..
  57                             Object val = G2DUtils.getObject(g, o);
  58 //                            System.out.println(name+" = "+val);
  59                             properties.put(name, val);
  60                         }
  61                     } catch (AdaptionException e) {
  62                         // TODO Auto-generated catch block
  63                         e.printStackTrace();
  64                     } catch (ValidationException e) {
  65                         // TODO Auto-generated catch block
  66                         e.printStackTrace();
  67                     } catch (NoSingleResultException e) {
  68                         // TODO Auto-generated catch block
  69                         e.printStackTrace();
  70                     } catch (DoesNotContainValueException e) {
  71                         // TODO Auto-generated catch block
  72                         e.printStackTrace();
  73                     }
  74                 }
  75             }
  76         } catch (ServiceException e) {
  77             // TODO Auto-generated catch block
  78             e.printStackTrace();
  79         }
  80         element.setHint(ElementHints.KEY_ELEMENT_PROPERTIES, properties);
  81     }
  82 }