bundles/org.simantics.layer0x.ontology/src/org/simantics/layer0/PredicateResource.java

   1 package org.simantics.layer0;\r
   2 \r
   3 import org.simantics.db.RequestProcessor;\r
   4 import org.simantics.db.Resource;\r
   5 import org.simantics.db.ReadGraph;\r
   6 import org.simantics.db.request.Read;\r
   7 import org.simantics.db.Session;\r
   8 import org.simantics.db.exception.DatabaseException;\r
   9 import org.simantics.db.service.QueryControl;\r
  10 \r
  11 public class PredicateResource {\r
  12     \r
  13     public final Resource AppliesFirst;\r
  14     public final Resource AppliesThen;\r
  15     public final Resource BinaryPredicate;\r
  16     public final Resource CompositePredicate;\r
  17     public final Resource Conjunction;\r
  18     public final Resource Disjunction;\r
  19     public final Resource HasBinaryPredicate;\r
  20     public final Resource HasPredicate;\r
  21     public final Resource IntersectionPredicate;\r
  22     public final Resource InversePredicate;\r
  23     public final Resource Negation;\r
  24     public final Resource OrderedSetElements;\r
  25     public final Resource Predicate;\r
  26     public final Resource TransitiveClosure;\r
  27     public final Resource UnionPredicate;\r
  28         \r
  29     public static class URIs {\r
  30         public static final String AppliesFirst = "http://www.simantics.org/Layer0X-1.1/Predicate/AppliesFirst";\r
  31         public static final String AppliesThen = "http://www.simantics.org/Layer0X-1.1/Predicate/AppliesThen";\r
  32         public static final String BinaryPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/BinaryPredicate";\r
  33         public static final String CompositePredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/CompositePredicate";\r
  34         public static final String Conjunction = "http://www.simantics.org/Layer0X-1.1/Predicate/Conjunction";\r
  35         public static final String Disjunction = "http://www.simantics.org/Layer0X-1.1/Predicate/Disjunction";\r
  36         public static final String HasBinaryPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/HasBinaryPredicate";\r
  37         public static final String HasPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/HasPredicate";\r
  38         public static final String IntersectionPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/IntersectionPredicate";\r
  39         public static final String InversePredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/InversePredicate";\r
  40         public static final String Negation = "http://www.simantics.org/Layer0X-1.1/Predicate/Negation";\r
  41         public static final String OrderedSetElements = "http://www.simantics.org/Layer0X-1.1/Predicate/OrderedSetElements";\r
  42         public static final String Predicate = "http://www.simantics.org/Layer0X-1.1/Predicate/Predicate";\r
  43         public static final String TransitiveClosure = "http://www.simantics.org/Layer0X-1.1/Predicate/TransitiveClosure";\r
  44         public static final String UnionPredicate = "http://www.simantics.org/Layer0X-1.1/Predicate/UnionPredicate";\r
  45     }\r
  46     \r
  47     public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
  48         try {\r
  49             return graph.getResource(uri);\r
  50         } catch(DatabaseException e) {\r
  51             System.err.println(e.getMessage());\r
  52             return null;\r
  53         }\r
  54     }\r
  55     \r
  56     public PredicateResource(ReadGraph graph) {\r
  57         AppliesFirst = getResourceOrNull(graph, URIs.AppliesFirst);\r
  58         AppliesThen = getResourceOrNull(graph, URIs.AppliesThen);\r
  59         BinaryPredicate = getResourceOrNull(graph, URIs.BinaryPredicate);\r
  60         CompositePredicate = getResourceOrNull(graph, URIs.CompositePredicate);\r
  61         Conjunction = getResourceOrNull(graph, URIs.Conjunction);\r
  62         Disjunction = getResourceOrNull(graph, URIs.Disjunction);\r
  63         HasBinaryPredicate = getResourceOrNull(graph, URIs.HasBinaryPredicate);\r
  64         HasPredicate = getResourceOrNull(graph, URIs.HasPredicate);\r
  65         IntersectionPredicate = getResourceOrNull(graph, URIs.IntersectionPredicate);\r
  66         InversePredicate = getResourceOrNull(graph, URIs.InversePredicate);\r
  67         Negation = getResourceOrNull(graph, URIs.Negation);\r
  68         OrderedSetElements = getResourceOrNull(graph, URIs.OrderedSetElements);\r
  69         Predicate = getResourceOrNull(graph, URIs.Predicate);\r
  70         TransitiveClosure = getResourceOrNull(graph, URIs.TransitiveClosure);\r
  71         UnionPredicate = getResourceOrNull(graph, URIs.UnionPredicate);\r
  72     }\r
  73     \r
  74     public static PredicateResource getInstance(ReadGraph graph) {\r
  75         Session session = graph.getSession();\r
  76         PredicateResource ret = session.peekService(PredicateResource.class);\r
  77         if(ret == null) {\r
  78             QueryControl qc = graph.getService(QueryControl.class);\r
  79             ret = new PredicateResource(qc.getIndependentGraph(graph));\r
  80             session.registerService(PredicateResource.class, ret);\r
  81         }\r
  82         return ret;\r
  83     }\r
  84     \r
  85     public static PredicateResource getInstance(RequestProcessor session) throws DatabaseException {\r
  86         PredicateResource ret = session.peekService(PredicateResource.class);\r
  87         if(ret == null) {\r
  88             ret = session.syncRequest(new Read<PredicateResource>() {\r
  89                 public PredicateResource perform(ReadGraph graph) throws DatabaseException {\r
  90                     QueryControl qc = graph.getService(QueryControl.class);\r
  91                     return new PredicateResource(qc.getIndependentGraph(graph));\r
  92                 }\r
  93             });\r
  94             session.registerService(PredicateResource.class, ret);\r
  95         }\r
  96         return ret;\r
  97     }\r
  98     \r
  99 }\r
 100 \r