bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/viewpoint/VariablePropertyRule.java

   1 package org.simantics.modeling.ui.viewpoint;\r
   2 \r
   3 import java.util.ArrayList;\r
   4 import java.util.Collection;\r
   5 import java.util.Collections;\r
   6 \r
   7 import org.simantics.browsing.ui.model.children.ChildRule;\r
   8 import org.simantics.databoard.Bindings;\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.variable.Variable;\r
  13 import org.simantics.db.layer0.variable.Variables;\r
  14 import org.simantics.db.layer0.variable.Variables.Role;\r
  15 import org.simantics.layer0.Layer0;\r
  16 import org.simantics.modeling.ModelingResources;\r
  17 import org.simantics.selectionview.SelectionViewResources;\r
  18 \r
  19 public class VariablePropertyRule implements ChildRule {\r
  20 \r
  21         final private ArrayList<String> requiredProperties = new ArrayList<String>();\r
  22         final private ArrayList<String> filteredProperties = new ArrayList<String>();\r
  23         \r
  24         public VariablePropertyRule(ReadGraph graph, Resource rule) throws DatabaseException {\r
  25 \r
  26                 ModelingResources MOD = ModelingResources.getInstance(graph);\r
  27                 for(Resource r : graph.getObjects(rule, MOD.ModelingBrowseContext_VariablePropertyRule_RequireProperty)) {\r
  28                         String name = graph.getValue(r, Bindings.STRING);\r
  29                         requiredProperties.add(name);\r
  30                 }\r
  31                 for(Resource r : graph.getObjects(rule, MOD.ModelingBrowseContext_VariablePropertyRule_FilterProperty)) {\r
  32                         String name = graph.getValue(r, Bindings.STRING);\r
  33                         filteredProperties.add(name);\r
  34                 }\r
  35                 \r
  36         }\r
  37         \r
  38     @Override\r
  39     public boolean isCompatible(Class<?> contentType) {\r
  40         return contentType.equals(Variable.class);\r
  41     }\r
  42 \r
  43     private boolean validate(ReadGraph graph, Variable parent, Variable child) throws DatabaseException {\r
  44         \r
  45         Resource predicate = child.getPossiblePredicateResource(graph);\r
  46         if(predicate == null) return true;\r
  47         \r
  48         Layer0 L0 = Layer0.getInstance(graph);\r
  49         if(L0.HasName.equals(predicate) || L0.HasLabel.equals(predicate)) {\r
  50             Role role = parent.getRole(graph);\r
  51             if(role == Role.PROPERTY) return false;\r
  52         }\r
  53         return true;\r
  54     }\r
  55     \r
  56     @Override\r
  57     public Collection<?> getChildren(ReadGraph graph, Object parent_)\r
  58             throws DatabaseException {\r
  59         \r
  60         Variable parent = (Variable)parent_;\r
  61         \r
  62         ArrayList<Variable> result = new ArrayList<Variable>();\r
  63 \r
  64         Collection<Variable> properties = parent.getProperties(graph);\r
  65         ArrayList<Resource> propertiesPredicates = new ArrayList<Resource>();\r
  66         for (Variable property : properties) {\r
  67             Resource r = property.getPossiblePredicateResource(graph);\r
  68             if (r != null)\r
  69                 propertiesPredicates.add(r);\r
  70         }\r
  71         \r
  72         Layer0 L0 = Layer0.getInstance(graph);\r
  73         SelectionViewResources SEL = SelectionViewResources.getInstance(graph);\r
  74         \r
  75         props: for(Variable property : properties) {\r
  76                 \r
  77             if (isUnder(graph, L0, SEL, property, propertiesPredicates)) continue props;\r
  78             \r
  79             Boolean hidden = property.getPossiblePropertyValue(graph, SEL.hidden, Bindings.BOOLEAN);\r
  80             if(hidden != null && hidden) continue props;\r
  81             \r
  82                 for(String req : requiredProperties) if(property.getPossibleProperty(graph, req) == null) continue props;\r
  83 \r
  84                 for(String req : filteredProperties) if(property.getName(graph).equals(req)) continue props;\r
  85 \r
  86                 if(!validate(graph, parent, property)) continue;\r
  87                                 \r
  88                 //System.err.println("add " + property.getURI(graph));\r
  89                 \r
  90                 result.add(property);\r
  91                                 \r
  92         }\r
  93         \r
  94         Resource predicateResource = parent.getPossiblePredicateResource(graph);\r
  95         if (predicateResource != null) {\r
  96                 Collection<Resource> underOfs = graph.getObjects(predicateResource, SEL.UnderOf);\r
  97                 if (!underOfs.isEmpty()) {\r
  98                     Collection<Variable> siblings = parent.getParent(graph).getProperties(graph);\r
  99                     for (Variable sibling : siblings) {\r
 100                         Resource r = sibling.getPossiblePredicateResource(graph);\r
 101                         if (r != null) {\r
 102                         if (underOfs.contains(r))\r
 103                             result.add(sibling);\r
 104                         }\r
 105                     }\r
 106                 }\r
 107         }\r
 108         \r
 109         if(isUnderProperty(graph, parent)) {\r
 110                 Collection<Variable> children = parent.getChildren(graph);\r
 111                 for(Variable child : children) {\r
 112                     result.add(child);\r
 113                 }\r
 114         }\r
 115         \r
 116         return result;\r
 117     }\r
 118     \r
 119     private boolean isUnderProperty(ReadGraph graph, Variable variable) throws DatabaseException {\r
 120         Role role = variable.getRole(graph);\r
 121         if(Role.PROPERTY.equals(role)) {\r
 122                 return true;\r
 123         }\r
 124         Variable parent = variable.getParent(graph);\r
 125         if(parent == null) return false;\r
 126         else return isUnderProperty(graph, parent);\r
 127         \r
 128     }\r
 129 \r
 130     private boolean isUnder(ReadGraph graph, Layer0 L0, SelectionViewResources SEL, Variable property, ArrayList<Resource> propertiesPredicates) throws DatabaseException {\r
 131         Resource predicate = property.getPossiblePredicateResource(graph);\r
 132         if (predicate == null)\r
 133             return false;\r
 134         Collection<Resource> shownUnders = graph.getObjects(predicate, SEL.IsShownUnder);\r
 135         return !Collections.disjoint(propertiesPredicates, shownUnders);\r
 136     }\r
 137     \r
 138     @Override\r
 139     public Collection<?> getParents(ReadGraph graph, Object child)\r
 140             throws DatabaseException {\r
 141         Variable parent = ((Variable)child).getParent(graph);\r
 142         if(parent == null)\r
 143             return Collections.emptyList();\r
 144         else\r
 145             return Collections.singleton(parent);\r
 146     }\r
 147 \r
 148 }\r