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

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