bundles/org.simantics.structural2/src/org/simantics/structural2/StructuralRVIResolver.java

   1 package org.simantics.structural2;\r
   2 \r
   3 import java.util.Collection;\r
   4 import java.util.LinkedList;\r
   5 \r
   6 import org.simantics.databoard.Databoard;\r
   7 import org.simantics.databoard.binding.Binding;\r
   8 import org.simantics.datatypes.literal.GUID;\r
   9 import org.simantics.db.ReadGraph;\r
  10 import org.simantics.db.Resource;\r
  11 import org.simantics.db.exception.DatabaseException;\r
  12 import org.simantics.db.layer0.adapter.Instances;\r
  13 import org.simantics.db.layer0.exception.MissingVariableException;\r
  14 import org.simantics.db.layer0.variable.RVI;\r
  15 import org.simantics.db.layer0.variable.RVI.GuidRVIPart;\r
  16 import org.simantics.db.layer0.variable.RVI.RVIPart;\r
  17 import org.simantics.db.layer0.variable.RVIBuilder;\r
  18 import org.simantics.db.layer0.variable.StandardRVIResolver;\r
  19 import org.simantics.db.layer0.variable.Variable;\r
  20 import org.simantics.db.layer0.variable.Variables;\r
  21 import org.simantics.layer0.Layer0;\r
  22 import org.simantics.simulation.ontology.SimulationResource;\r
  23 import org.simantics.structural.stubs.StructuralResource2;\r
  24 \r
  25 public class StructuralRVIResolver extends StandardRVIResolver {\r
  26 \r
  27     protected boolean isRVIBase(ReadGraph graph, Variable variable) throws DatabaseException {\r
  28         if (Variables.isContext(graph, variable)) return true;\r
  29         StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
  30         Resource represents = variable.getRepresents(graph);\r
  31         if (represents == null) return false;\r
  32         if (graph.isInstanceOf(represents, STR.Composite)) return false;\r
  33         return true;\r
  34     }\r
  35     \r
  36     @Override\r
  37     public RVI getRVI(ReadGraph graph, Variable variable) throws DatabaseException {\r
  38         if (Variables.isContext(graph, variable)) {\r
  39             Databoard databoard = graph.getService( Databoard.class );\r
  40             Binding rviBinding = databoard.getBindingUnchecked( RVI.class );\r
  41             return RVI.empty(rviBinding);\r
  42         }\r
  43         Variable base = variable.getParent(graph);\r
  44         while(!isRVIBase(graph, base)) base = base.getParent(graph);\r
  45         RVIPart part = getRVIPart(graph, variable);\r
  46         return new RVIBuilder(base.getRVI(graph)).append(part).toRVI();\r
  47     }\r
  48 \r
  49     protected boolean isPartOfComponentType(ReadGraph graph, Resource resource)\r
  50             throws DatabaseException {\r
  51         Layer0 L0 = Layer0.getInstance(graph);\r
  52         StructuralResource2 STR = StructuralResource2.getInstance(graph);\r
  53         Resource container = graph.getPossibleObject(resource, L0.PartOf);\r
  54         if(container != null && graph.isInstanceOf(container, STR.Composite)) {\r
  55             return graph.hasStatement(container, STR.Defines);\r
  56         }\r
  57         return false;\r
  58     }\r
  59 \r
  60     protected Resource getBase(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {\r
  61         Layer0 L0 = Layer0.getInstance(graph);\r
  62         SimulationResource SIMU = SimulationResource.getInstance(graph);\r
  63         Resource represents = variable.getPossibleRepresents(graph);\r
  64         if(represents != null && graph.isInstanceOf(represents, SIMU.Run)) return Variables.getPossibleConfigurationContextResource(graph, represents);\r
  65         else if(isPartOfComponentType(graph, resource)) return graph.getPossibleObject(resource, L0.PartOf);\r
  66         return represents;\r
  67     }\r
  68 \r
  69     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, Resource resource)\r
  70             throws DatabaseException {\r
  71         Resource base = getBase(graph, variable, resource);\r
  72         if (base == null)\r
  73             return null;\r
  74         LinkedList<Resource> result = new LinkedList<Resource>();\r
  75         result.add(resource);\r
  76         Layer0 L0 = Layer0.getInstance(graph);\r
  77         resource = graph.getPossibleObject(resource, L0.PartOf);\r
  78         if(resource == null) return null;\r
  79         while(!base.equals(resource)) {\r
  80             result.addFirst(resource);\r
  81             resource = graph.getPossibleObject(resource, L0.PartOf);\r
  82             if(resource == null) return null;\r
  83         }\r
  84         return result;\r
  85     }\r
  86     \r
  87     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, GuidRVIPart part)\r
  88             throws DatabaseException {\r
  89 \r
  90         if(part.resource != null) {\r
  91                 return getRVIPath(graph, variable, part.resource);\r
  92         } else {\r
  93                 Resource indexRoot = variable.getIndexRoot(graph);\r
  94                 Instances instances = graph.adapt(Layer0.getInstance(graph).Entity, Instances.class);\r
  95                 GUID guid = new GUID(part.mostSignificant, part.leastSignificant);\r
  96                 Collection<Resource> queryResult = instances.find(graph, indexRoot, "GUID:"+guid.indexString());\r
  97                 if(queryResult.size() != 1) return null;\r
  98                 return getRVIPath(graph, variable, queryResult.iterator().next());\r
  99         }\r
 100         \r
 101     }\r
 102 \r
 103     @Override\r
 104     protected Variable resolveChild(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {\r
 105         Collection<Resource> path = getRVIPath(graph, variable, resource);\r
 106         if(path == null) throw new MissingVariableException("Didn't find a variable related to " + resource + ".", resource);\r
 107         for(Resource r : path) variable = variable.browse(graph, r);\r
 108         return variable;\r
 109     }\r
 110     \r
 111     @Override\r
 112     protected Variable resolveChild(ReadGraph graph, Variable variable, GuidRVIPart part) throws DatabaseException {\r
 113         Collection<Resource> path = getRVIPath(graph, variable, part);\r
 114         if(path == null) throw new MissingVariableException("Didn't find a variable related to " + part + ".");\r
 115         for(Resource r : path) variable = variable.browse(graph, r);\r
 116         return variable;\r
 117     }\r
 118 \r
 119 }\r