bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/PropertyInfoRequest.java

   1 package org.simantics.db.layer0.request;
   2
   3 import java.util.Collection;
   4 import java.util.Collections;
   5 import java.util.Map;
   6 import java.util.Set;
   7
   8 import org.simantics.databoard.Bindings;
   9 import org.simantics.databoard.accessor.reference.ChildReference;
  10 import org.simantics.databoard.accessor.reference.IndexReference;
  11 import org.simantics.databoard.accessor.reference.NameReference;
  12 import org.simantics.databoard.type.Datatype;
  13 import org.simantics.db.ReadGraph;
  14 import org.simantics.db.Resource;
  15 import org.simantics.db.common.request.ResourceRead;
  16 import org.simantics.db.exception.DatabaseException;
  17 import org.simantics.db.layer0.util.Layer0Utils;
  18 import org.simantics.db.layer0.variable.ValueAccessor;
  19 import org.simantics.db.layer0.variable.VariableBuilder;
  20 import org.simantics.layer0.Layer0;
  21 import org.simantics.operation.Layer0X;
  22 import org.simantics.utils.datastructures.Pair;
  23
  24 import gnu.trove.map.hash.THashMap;
  25
  26 final public class PropertyInfoRequest extends ResourceRead<PropertyInfo> {
  27
  28         public PropertyInfoRequest(Resource resource) {
  29                 super(resource);
  30         }
  31
  32         @Override
  33         public PropertyInfo perform(ReadGraph graph) throws DatabaseException {
  34
  35                 Layer0 L0 = Layer0.getInstance(graph);
  36                 Layer0X L0X = Layer0X.getInstance(graph);
  37
  38                 boolean isHasProperty = graph.isSubrelationOf(resource, L0.HasProperty);
  39
  40                 String name = graph.getPossibleRelatedValue(resource, L0.HasName, Bindings.STRING);
  41                 if(name != null) name = name.intern();
  42
  43                 Set<String> classifications = graph.sync(new ClassificationsRequest(graph.getPrincipalTypes(resource)));
  44                 VariableBuilder variableBuilder = graph.getPossibleAdapter(resource, VariableBuilder.class);
  45
  46                 Datatype requiredDataType = graph.getPossibleRelatedValue(resource, L0X.RequiresDataType, Layer0Utils.datatype_binging);
  47
  48                 String definedUnit = graph.getPossibleRelatedValue(resource, L0X.HasUnit, Bindings.STRING);
  49
  50                 Resource literalRange = graph.getPossibleObject(resource, L0.HasRange);
  51                 String requiredValueType = graph.getPossibleRelatedValue(resource, L0.RequiresValueType, Bindings.STRING);
  52                 //System.out.println(name + " -> " + requiredValueType);
  53
  54                 ValueAccessor accessor = graph.getPossibleRelatedValue2(resource, Layer0.getInstance(graph).valueAccessor, resource);
  55
  56                 boolean hasEnumerationRange = graph.syncRequest(new HasEnumerationRange(resource));
  57
  58                 Collection<Resource> ranges = graph.getObjects(resource, L0.HasRange);
  59                 if (!ranges.isEmpty()) {
  60                         for (Resource range : ranges) {
  61                                 if (requiredValueType == null) {
  62                                         // Check if the single range defines value type
  63                                         Collection<Resource> valueTypes = graph.getAssertedObjects(range, L0.HasValueType);
  64                                         if (valueTypes.size() > 0) {
  65                                                 for (Resource valueType : valueTypes) {
  66                                                         String vt = graph.getPossibleValue(valueType, Bindings.STRING);
  67                                                         if (vt != null && !vt.isEmpty()) {
  68                                                                 requiredValueType = vt;
  69                                                                 continue;
  70                                                         }
  71                                                 }
  72                                         }
  73                                 }
  74
  75                                 Collection<Resource> subliterals = graph.getObjects(range, L0.HasSubliteralPredicate);
  76                                 if(!subliterals.isEmpty()) {
  77                                         Map<String,Pair<Resource, ChildReference>> map = new THashMap<String,Pair<Resource, ChildReference>>();
  78                                         for(Resource p : subliterals) {
  79                                                 String pN = graph.getPossibleRelatedValue(p, L0.HasName, Bindings.STRING);
  80                                                 if(pN == null) continue;
  81                                                 if(pN.startsWith("n-")) {
  82                                                         ChildReference r = new NameReference(pN.substring(2));
  83                                                         map.put(pN, Pair.make(p, r));
  84                                                 } else if (pN.startsWith("i-")) {
  85                                                         ChildReference r = new IndexReference(Integer.parseInt(pN.substring(2)));
  86                                                         map.put(pN, Pair.make(p, r));
  87                                                 }
  88                                         }
  89
  90                                         return PropertyInfo.make(graph, resource, name, isHasProperty, classifications, variableBuilder, literalRange, requiredDataType, definedUnit, requiredValueType, map, accessor, hasEnumerationRange);
  91
  92                                 }
  93                         }
  94                 }
  95
  96                 return PropertyInfo.make(graph, resource, name, isHasProperty, classifications, variableBuilder, literalRange, requiredDataType, definedUnit, requiredValueType, Collections.<String,Pair<Resource,ChildReference>>emptyMap(), accessor, hasEnumerationRange);
  97
  98         }
  99
 100         @Override
 101         public boolean equals(Object object) {
 102         if (this == object)
 103             return true;
 104         else if (object == null)
 105             return false;
 106         else if (!(object instanceof PropertyInfoRequest))
 107             return false;
 108         PropertyInfoRequest r = (PropertyInfoRequest)object;
 109         return r.resource.equals(resource);
 110         }
 111
 112         @Override
 113         public int hashCode() {
 114                 return resource.hashCode() + classHash;
 115         }
 116
 117         private static int classHash = 31*PropertyInfo.class.hashCode();
 118
 119 }