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     @Override
  50     public RVI getPossibleRVI(ReadGraph graph, Variable variable) throws DatabaseException {
  51         if (Variables.isContext(graph, variable)) {
  52             Databoard databoard = graph.getService( Databoard.class );
  53             Binding rviBinding = databoard.getBindingUnchecked( RVI.class );
  54             return RVI.empty(rviBinding);
  55         }
  56         Variable base = variable.getParent(graph);
  57         if(base == null) return null;
  58         while(!isRVIBase(graph, base)) {
  59             base = base.getParent(graph);
  60             if(base == null) return null;
  61         }
  62         RVIPart part = getRVIPart(graph, variable);
  63         if(part == null) return null;
  64         return new RVIBuilder(base.getRVI(graph)).append(part).toRVI();
  65     }
  66
  67     protected boolean isPartOfComponentType(ReadGraph graph, Resource resource)
  68             throws DatabaseException {
  69         Layer0 L0 = Layer0.getInstance(graph);
  70         StructuralResource2 STR = StructuralResource2.getInstance(graph);
  71         Resource container = graph.getPossibleObject(resource, L0.PartOf);
  72         if(container != null && graph.isInstanceOf(container, STR.Composite)) {
  73             return graph.hasStatement(container, STR.Defines);
  74         }
  75         return false;
  76     }
  77
  78     protected Resource getBase(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {
  79         Layer0 L0 = Layer0.getInstance(graph);
  80         SimulationResource SIMU = SimulationResource.getInstance(graph);
  81         Resource represents = variable.getPossibleRepresents(graph);
  82         if(represents != null && graph.isInstanceOf(represents, SIMU.Run)) return Variables.getPossibleConfigurationContextResource(graph, represents);
  83         else if(isPartOfComponentType(graph, resource)) return graph.getPossibleObject(resource, L0.PartOf);
  84         return represents;
  85     }
  86
  87     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, Resource resource)
  88             throws DatabaseException {
  89         Resource base = getBase(graph, variable, resource);
  90         if (base == null)
  91             return null;
  92         LinkedList<Resource> result = new LinkedList<Resource>();
  93         result.add(resource);
  94         Layer0 L0 = Layer0.getInstance(graph);
  95         resource = graph.getPossibleObject(resource, L0.PartOf);
  96         if(resource == null) return null;
  97         while(!base.equals(resource)) {
  98             result.addFirst(resource);
  99             resource = graph.getPossibleObject(resource, L0.PartOf);
 100             if(resource == null) return null;
 101         }
 102         return result;
 103     }
 104
 105     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, GuidRVIPart part)
 106             throws DatabaseException {
 107
 108         if(part.resource != null) {
 109                 return getRVIPath(graph, variable, part.resource);
 110         } else {
 111                 Resource indexRoot = variable.getIndexRoot(graph);
 112                 Instances instances = graph.adapt(Layer0.getInstance(graph).Entity, Instances.class);
 113                 GUID guid = new GUID(part.mostSignificant, part.leastSignificant);
 114                 Collection<Resource> queryResult = instances.find(graph, indexRoot, "GUID:"+guid.indexString());
 115                 if(queryResult.size() != 1) return null;
 116                 return getRVIPath(graph, variable, queryResult.iterator().next());
 117         }
 118
 119     }
 120
 121     @Override
 122     protected Variable resolveChild(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {
 123         Collection<Resource> path = getRVIPath(graph, variable, resource);
 124         if(path == null) throw new MissingVariableException("Didn't find a variable related to " + resource + ".", resource);
 125         for(Resource r : path) variable = variable.browse(graph, r);
 126         return variable;
 127     }
 128
 129     @Override
 130     protected Variable resolveChild(ReadGraph graph, Variable variable, GuidRVIPart part) throws DatabaseException {
 131         Collection<Resource> path = getRVIPath(graph, variable, part);
 132         if(path == null) throw new MissingVariableException("Didn't find a variable related to " + part + ".");
 133         for(Resource r : path) variable = variable.browse(graph, r);
 134         return variable;
 135     }
 136
 137 }