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