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                 for(String req : requiredProperties) if(property.getPossibleProperty(graph, req) == null) continue props;\r
  80 \r
  81                 for(String req : filteredProperties) if(property.getName(graph).equals(req)) continue props;\r
  82 \r
  83                 if(!validate(graph, parent, property)) continue;\r
  84                                 \r
  85                 //System.err.println("add " + property.getURI(graph));\r
  86                 \r
  87                 result.add(property);\r
  88                                 \r
  89         }\r
  90         \r
  91         Resource predicateResource = parent.getPossiblePredicateResource(graph);\r
  92         if (predicateResource != null) {\r
  93                 Collection<Resource> underOfs = graph.getObjects(predicateResource, SEL.UnderOf);\r
  94                 if (!underOfs.isEmpty()) {\r
  95                     Collection<Variable> siblings = parent.getParent(graph).getProperties(graph);\r
  96                     for (Variable sibling : siblings) {\r
  97                         Resource r = sibling.getPossiblePredicateResource(graph);\r
  98                         if (r != null) {\r
  99                         if (underOfs.contains(r))\r
 100                             result.add(sibling);\r
 101                         }\r
 102                     }\r
 103                 }\r
 104         }\r
 105         \r
 106         if(isUnderProperty(graph, parent)) {\r
 107                 Collection<Variable> children = parent.getChildren(graph);\r
 108                 for(Variable child : children) {\r
 109                     result.add(child);\r
 110                 }\r
 111         }\r
 112         \r
 113         return result;\r
 114     }\r
 115     \r
 116     private boolean isUnderProperty(ReadGraph graph, Variable variable) throws DatabaseException {\r
 117         Role role = variable.getRole(graph);\r
 118         if(Role.PROPERTY.equals(role)) {\r
 119                 return true;\r
 120         }\r
 121         Variable parent = variable.getParent(graph);\r
 122         if(parent == null) return false;\r
 123         else return isUnderProperty(graph, parent);\r
 124         \r
 125     }\r
 126 \r
 127     private boolean isUnder(ReadGraph graph, Layer0 L0, SelectionViewResources SEL, Variable property, ArrayList<Resource> propertiesPredicates) throws DatabaseException {\r
 128         Resource predicate = property.getPossiblePredicateResource(graph);\r
 129         if (predicate == null)\r
 130             return false;\r
 131         Collection<Resource> shownUnders = graph.getObjects(predicate, SEL.IsShownUnder);\r
 132         return !Collections.disjoint(propertiesPredicates, shownUnders);\r
 133     }\r
 134     \r
 135     @Override\r
 136     public Collection<?> getParents(ReadGraph graph, Object child)\r
 137             throws DatabaseException {\r
 138         Variable parent = ((Variable)child).getParent(graph);\r
 139         if(parent == null)\r
 140             return Collections.emptyList();\r
 141         else\r
 142             return Collections.singleton(parent);\r
 143     }\r
 144 \r
 145 }\r