Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / variable / StandardVariableModifier.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardVariableModifier.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardVariableModifier.java
new file mode 100644 (file)
index 0000000..0b82770
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/variable/StandardVariableModifier.java
@@ -0,0 +1,114 @@
+package org.simantics.db.layer0.variable;\r
+\r
+import java.util.Map;\r
+\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.databoard.binding.Binding;\r
+import org.simantics.databoard.type.Datatype;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.Statement;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.EnumerationMap;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+\r
+public class StandardVariableModifier implements VariableModifier {\r
+\r
+       final private static Binding datatype_binging = Bindings.getBindingUnchecked(Datatype.class);\r
+       final public static StandardVariableModifier INSTANCE = new StandardVariableModifier();\r
+\r
+       @Override\r
+       public String isValid(Object newValue) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public String isValid(Object newValue, Binding binding) {\r
+               return null;\r
+       }\r
+\r
+       @Override\r
+       public void modify(WriteGraph graph, Variable variable, Object value) throws DatabaseException {\r
+               modify(graph, variable, value, null);\r
+       }\r
+\r
+       boolean isEnumeration(ReadGraph graph, Resource literal) throws DatabaseException {\r
+               \r
+               Layer0 L0 = Layer0.getInstance(graph);\r
+               Resource parent = graph.getPossibleObject(literal, L0.PartOf);\r
+               if(parent == null) return false;\r
+               return graph.hasStatement(parent, L0.Enumeration);\r
+               \r
+       }\r
+       \r
+       @Override\r
+       public void modify(WriteGraph graph, Variable variable, Object value, Binding binding) throws DatabaseException {\r
+\r
+               Variable parent = variable.getParent(graph);\r
+               Resource container = parent.getPossibleRepresents(graph);\r
+               if(container == null) return;\r
+               \r
+               Resource property = variable.getPossiblePredicateResource(graph);\r
+               if(property == null) return;\r
+               \r
+//             Variable parent = variable.getPossiblePropertyValue(graph, Variables.PARENT);\r
+//             Variable predicate = variable.getPossiblePropertyValue(graph, Variables.PREDICATE);\r
+               \r
+//             Resource container = parent.getPossiblePropertyValue(graph, Variables.REPRESENTS);\r
+//             if(container == null) return;\r
+//             Resource property = predicate.getPossiblePropertyValue(graph, Variables.REPRESENTS);\r
+//             if(property == null) return;\r
+       \r
+               Statement object = graph.getPossibleStatement(container, property);\r
+               if(object == null) return;\r
+               \r
+               Resource objectResource = object.getObject();\r
+               if(isEnumeration(graph, objectResource)) {\r
+\r
+                       Layer0 L0 = Layer0.getInstance(graph);\r
+                       Resource type = graph.getSingleObject(objectResource, L0.PartOf);\r
+                       \r
+                       Map<String, Resource> enumMap = graph.syncRequest(new EnumerationMap(type));\r
+                       Resource newLiteral = enumMap.get(value);\r
+                       graph.deny(container, property, objectResource);\r
+                       graph.claim(container, property, newLiteral);\r
+                       \r
+                       return;\r
+               }\r
+               \r
+               if(object.isAsserted(container)) {\r
+\r
+                       Layer0 L0 = Layer0.getInstance(graph);\r
+                       Resource type = graph.getPossibleType(objectResource, L0.Literal);\r
+\r
+                       Statement dt = graph.getPossibleStatement(objectResource, L0.HasDataType);\r
+                       Datatype custom = dt.isAsserted(objectResource) ? null : (Datatype)graph.getValue(dt.getObject(), datatype_binging);\r
+\r
+                       objectResource = graph.newResource();\r
+                       graph.claim(objectResource, L0.InstanceOf, null, type);\r
+                       graph.claim(container, property, objectResource);\r
+                       if(custom != null) {\r
+                               graph.addLiteral(objectResource, L0.HasDataType, L0.HasDataType_Inverse, L0.DataType, custom, datatype_binging);\r
+                       }\r
+                       \r
+                       \r
+//                     Resource usesUnit = graph.getPossibleResource("http://flowbat.fi/Flowbat-0.1/UsesDatatype");\r
+//                     if(usesUnit != null) {\r
+//                             String unit = graph.getPossibleRelatedValue(oldObject, usesUnit, Bindings.STRING);\r
+//                             if(unit != null) {\r
+//                                     graph.claimLiteral(objectResource, usesUnit, unit, Bindings.STRING);\r
+//                             }\r
+//                             Resource isDefault = graph.getResource("http://flowbat.fi/Flowbat-0.1/IsDefault");\r
+//                             Resource isUndefined = graph.getResource("http://flowbat.fi/Flowbat-0.1/IsUndefined");\r
+//                             graph.claimLiteral(objectResource, isDefault, false, Bindings.BOOLEAN);\r
+//                             graph.claimLiteral(objectResource, isUndefined, false, Bindings.BOOLEAN);\r
+//                     }\r
+                       \r
+               }\r
+               graph.claimValue(objectResource, value, binding);\r
+               \r
+       }\r
+       \r
+\r
+}\r