bundles/org.simantics.scenegraph.loader/src/org/simantics/scenegraph/loader/function/All.java

   1 package org.simantics.scenegraph.loader.function;
   2
   3 import org.simantics.databoard.Bindings;
   4 import org.simantics.db.ReadGraph;
   5 import org.simantics.db.Resource;
   6 import org.simantics.db.exception.DatabaseException;
   7 import org.simantics.db.layer0.variable.Variable;
   8 import org.simantics.db.layer0.variable.Variables;
   9 import org.simantics.layer0.Layer0;
  10 import org.simantics.scenegraph.loader.SceneGraphContext;
  11 import org.simantics.scenegraph.loader.ScenegraphLoaderUtils;
  12 import org.simantics.scenegraph.ontology.ScenegraphResources;
  13 import org.simantics.scl.reflection.annotations.SCLValue;
  14
  15 public class All {
  16
  17     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
  18     public static Variable defaultRuntimeVariable(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
  19
  20         SceneGraphContext vc = ScenegraphLoaderUtils.getContext(graph, context);
  21         if(vc == null) return null;
  22
  23         ScenegraphResources SG = ScenegraphResources.getInstance(graph);
  24         String uri = graph.getRelatedValue(vc.getRuntime(), SG.Runtime_HasVariable, Bindings.STRING);
  25         return Variables.getVariable(graph, uri);
  26
  27     }
  28
  29     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Resource")
  30     public static Resource defaultRuntimeResource(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
  31
  32         SceneGraphContext vc = ScenegraphLoaderUtils.getContext(graph, context);
  33         if(vc == null) return null;
  34
  35         ScenegraphResources SG = ScenegraphResources.getInstance(graph);
  36         return graph.getSingleObject(vc.getRuntime(), SG.Runtime_HasResource);
  37
  38     }
  39
  40
  41         private static Object walk(ReadGraph graph, Variable context, String name) throws DatabaseException {
  42
  43                 Variable var = context.getPossibleProperty(graph, name);
  44                 if(var != null) return var.getValue(graph);
  45
  46                 Variable parent = context.getParent(graph);
  47                 if(parent == null) return null;
  48
  49                 return walk(graph, parent, name);
  50
  51         }
  52
  53     @SCLValue(type = "ReadGraph -> Resource -> Variable -> a")
  54     public static Object liftedProperty(ReadGraph graph, Resource converter, Variable context) throws DatabaseException {
  55
  56         ScenegraphResources SG = ScenegraphResources.getInstance(graph);
  57         final Resource predicate = graph.getSingleObject(converter, SG.LiftedProperty_HasPredicate);
  58
  59                 try {
  60                         Layer0 L0 = Layer0.getInstance(graph);
  61                         Variable parent = context.getParent(graph);
  62                         String name = graph.getRelatedValue(predicate, L0.HasName, Bindings.STRING);
  63                         return walk(graph, parent, name);
  64                 } catch (DatabaseException e) {
  65                         e.printStackTrace();
  66                         return null;
  67                 }
  68
  69     }
  70
  71     @SCLValue(type = "ReadGraph -> Resource -> Variable -> Variable")
  72     public static Variable singleVariableSelection(ReadGraph graph, Resource resource, Variable context) throws DatabaseException {
  73         return ScenegraphLoaderUtils.getVariableSelection(graph, context);
  74     }
  75
  76 }