Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.layer0x.ontology / src / org / simantics / layer0 / PredicateResource.java

diff --git a/bundles/org.simantics.layer0x.ontology/src/org/simantics/layer0/PredicateResource.java b/bundles/org.simantics.layer0x.ontology/src/org/simantics/layer0/PredicateResource.java
new file mode 100644 (file)
index 0000000..d2d9d04
--- /dev/null
+++ b/bundles/org.simantics.layer0x.ontology/src/org/simantics/layer0/PredicateResource.java
@@ -0,0 +1,100 @@
+package org.simantics.layer0;\r
+\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.QueryControl;\r
+\r
+public class PredicateResource {\r
+    \r
+    public final Resource AppliesFirst;\r
+    public final Resource AppliesThen;\r
+    public final Resource BinaryPredicate;\r
+    public final Resource CompositePredicate;\r
+    public final Resource Conjunction;\r
+    public final Resource Disjunction;\r
+    public final Resource HasBinaryPredicate;\r
+    public final Resource HasPredicate;\r
+    public final Resource IntersectionPredicate;\r
+    public final Resource InversePredicate;\r
+    public final Resource Negation;\r
+    public final Resource OrderedSetElements;\r
+    public final Resource Predicate;\r
+    public final Resource TransitiveClosure;\r
+    public final Resource UnionPredicate;\r
+        \r
+    public static class URIs {\r
+        public static final String AppliesFirst = "http://www.simantics.org/Layer0X-1.1/Predicate/AppliesFirst";\r
+        public static final String AppliesThen = "http://www.simantics.org/Layer0X-1.1/Predicate/AppliesThen";\r
+        public static final String BinaryPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/BinaryPredicate";\r
+        public static final String CompositePredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/CompositePredicate";\r
+        public static final String Conjunction = "http://www.simantics.org/Layer0X-1.1/Predicate/Conjunction";\r
+        public static final String Disjunction = "http://www.simantics.org/Layer0X-1.1/Predicate/Disjunction";\r
+        public static final String HasBinaryPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/HasBinaryPredicate";\r
+        public static final String HasPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/HasPredicate";\r
+        public static final String IntersectionPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/IntersectionPredicate";\r
+        public static final String InversePredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/InversePredicate";\r
+        public static final String Negation = "http://www.simantics.org/Layer0X-1.1/Predicate/Negation";\r
+        public static final String OrderedSetElements = "http://www.simantics.org/Layer0X-1.1/Predicate/OrderedSetElements";\r
+        public static final String Predicate = "http://www.simantics.org/Layer0X-1.1/Predicate/Predicate";\r
+        public static final String TransitiveClosure = "http://www.simantics.org/Layer0X-1.1/Predicate/TransitiveClosure";\r
+        public static final String UnionPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/UnionPredicate";\r
+    }\r
+    \r
+    public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
+        try {\r
+            return graph.getResource(uri);\r
+        } catch(DatabaseException e) {\r
+            System.err.println(e.getMessage());\r
+            return null;\r
+        }\r
+    }\r
+    \r
+    public PredicateResource(ReadGraph graph) {\r
+        AppliesFirst = getResourceOrNull(graph, URIs.AppliesFirst);\r
+        AppliesThen = getResourceOrNull(graph, URIs.AppliesThen);\r
+        BinaryPredicate = getResourceOrNull(graph, URIs.BinaryPredicate);\r
+        CompositePredicate = getResourceOrNull(graph, URIs.CompositePredicate);\r
+        Conjunction = getResourceOrNull(graph, URIs.Conjunction);\r
+        Disjunction = getResourceOrNull(graph, URIs.Disjunction);\r
+        HasBinaryPredicate = getResourceOrNull(graph, URIs.HasBinaryPredicate);\r
+        HasPredicate = getResourceOrNull(graph, URIs.HasPredicate);\r
+        IntersectionPredicate = getResourceOrNull(graph, URIs.IntersectionPredicate);\r
+        InversePredicate = getResourceOrNull(graph, URIs.InversePredicate);\r
+        Negation = getResourceOrNull(graph, URIs.Negation);\r
+        OrderedSetElements = getResourceOrNull(graph, URIs.OrderedSetElements);\r
+        Predicate = getResourceOrNull(graph, URIs.Predicate);\r
+        TransitiveClosure = getResourceOrNull(graph, URIs.TransitiveClosure);\r
+        UnionPredicate = getResourceOrNull(graph, URIs.UnionPredicate);\r
+    }\r
+    \r
+    public static PredicateResource getInstance(ReadGraph graph) {\r
+        Session session = graph.getSession();\r
+        PredicateResource ret = session.peekService(PredicateResource.class);\r
+        if(ret == null) {\r
+            QueryControl qc = graph.getService(QueryControl.class);\r
+            ret = new PredicateResource(qc.getIndependentGraph(graph));\r
+            session.registerService(PredicateResource.class, ret);\r
+        }\r
+        return ret;\r
+    }\r
+    \r
+    public static PredicateResource getInstance(RequestProcessor session) throws DatabaseException {\r
+        PredicateResource ret = session.peekService(PredicateResource.class);\r
+        if(ret == null) {\r
+            ret = session.syncRequest(new Read<PredicateResource>() {\r
+                public PredicateResource perform(ReadGraph graph) throws DatabaseException {\r
+                    QueryControl qc = graph.getService(QueryControl.class);\r
+                    return new PredicateResource(qc.getIndependentGraph(graph));\r
+                }\r
+            });\r
+            session.registerService(PredicateResource.class, ret);\r
+        }\r
+        return ret;\r
+    }\r
+    \r
+}\r
+\r