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         else {
  44             Variable base = variable.getParent(graph);
  45             while(!isRVIBase(graph, base)) base = base.getParent(graph);
  46             RVIPart part = getRVIPart(graph, variable);
  47             return new RVIBuilder(base.getRVI(graph)).append(part).toRVI();
  48         }
  49     }
  50
  51     @Override
  52     public RVI getPossibleRVI(ReadGraph graph, Variable variable) throws DatabaseException {
  53         if (Variables.isContext(graph, variable)) {
  54             Databoard databoard = graph.getService( Databoard.class );
  55             Binding rviBinding = databoard.getBindingUnchecked( RVI.class );
  56             return RVI.empty(rviBinding);
  57         }
  58         else {
  59             Variable base = variable.getParent(graph);
  60             if(base == null) return null;
  61             while(!isRVIBase(graph, base)) {
  62                 base = base.getParent(graph);
  63                 if(base == null) return null;
  64             }
  65             RVIPart part = getRVIPart(graph, variable);
  66             if(part == null) return null;
  67             RVI baseRVI = base.getPossibleRVI(graph);
  68             if(baseRVI == null) return null;
  69             return new RVIBuilder(baseRVI).append(part).toRVI();
  70         }
  71     }
  72
  73     protected boolean isPartOfComponentType(ReadGraph graph, Resource resource)
  74             throws DatabaseException {
  75         Layer0 L0 = Layer0.getInstance(graph);
  76         StructuralResource2 STR = StructuralResource2.getInstance(graph);
  77         Resource container = graph.getPossibleObject(resource, L0.PartOf);
  78         if(container != null && graph.isInstanceOf(container, STR.Composite)) {
  79             return graph.hasStatement(container, STR.Defines);
  80         }
  81         return false;
  82     }
  83
  84     protected Resource getBase(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {
  85         Layer0 L0 = Layer0.getInstance(graph);
  86         SimulationResource SIMU = SimulationResource.getInstance(graph);
  87         Resource represents = variable.getPossibleRepresents(graph);
  88         if(represents != null && graph.isInstanceOf(represents, SIMU.Run)) return Variables.getPossibleConfigurationContextResource(graph, represents);
  89         else if(isPartOfComponentType(graph, resource)) return graph.getPossibleObject(resource, L0.PartOf);
  90         return represents;
  91     }
  92
  93     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, Resource resource)
  94             throws DatabaseException {
  95         Resource base = getBase(graph, variable, resource);
  96         if (base == null)
  97             return null;
  98         LinkedList<Resource> result = new LinkedList<Resource>();
  99         result.add(resource);
 100         Layer0 L0 = Layer0.getInstance(graph);
 101         resource = graph.getPossibleObject(resource, L0.PartOf);
 102         if(resource == null) return null;
 103         while(!base.equals(resource)) {
 104             result.addFirst(resource);
 105             resource = graph.getPossibleObject(resource, L0.PartOf);
 106             if(resource == null) return null;
 107         }
 108         return result;
 109     }
 110
 111     protected Collection<Resource> getRVIPath(ReadGraph graph, Variable variable, GuidRVIPart part)
 112             throws DatabaseException {
 113
 114         if(part.resource != null) {
 115                 return getRVIPath(graph, variable, part.resource);
 116         } else {
 117                 Resource indexRoot = variable.getIndexRoot(graph);
 118                 Instances instances = graph.adapt(Layer0.getInstance(graph).Entity, Instances.class);
 119                 GUID guid = new GUID(part.mostSignificant, part.leastSignificant);
 120                 Collection<Resource> queryResult = instances.find(graph, indexRoot, "GUID:"+guid.indexString());
 121                 if(queryResult.size() != 1) return null;
 122                 return getRVIPath(graph, variable, queryResult.iterator().next());
 123         }
 124
 125     }
 126
 127     @Override
 128     protected Variable resolveChild(ReadGraph graph, Variable variable, Resource resource) throws DatabaseException {
 129         Collection<Resource> path = getRVIPath(graph, variable, resource);
 130         if (path == null)
 131             throw new MissingVariableException("Didn't find a variable related to " + resource + ".", resource);
 132         for (Resource r : path)
 133             variable = variable.browse(graph, r);
 134         return variable;
 135     }
 136
 137     @Override
 138     protected Variable resolveChild(ReadGraph graph, Variable variable, GuidRVIPart part) throws DatabaseException {
 139         Collection<Resource> path = getRVIPath(graph, variable, part);
 140         if (path == null)
 141             throw new MissingVariableException("Didn't find a variable related to " + part + ".", variable.getPossibleRepresents(graph));
 142         for (Resource r : path)
 143             variable = variable.browse(graph, r);
 144         return variable;
 145     }
 146
 147 }