bundles/org.simantics.dublincore.ontology/src/org/simantics/layer0/DublinCore.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 DublinCore {\r
  12     \r
  13     public final Resource Bar;\r
  14     public final Resource Contributor;\r
  15     public final Resource Coverage;\r
  16     public final Resource Creator;\r
  17     public final Resource Date;\r
  18     public final Resource Date_Inverse;\r
  19     public final Resource Description;\r
  20     public final Resource Foo;\r
  21     public final Resource Format;\r
  22     public final Resource Identifier;\r
  23     public final Resource Identifier_Inverse;\r
  24     public final Resource Language;\r
  25     public final Resource Publisher;\r
  26     public final Resource Relation;\r
  27     public final Resource Rights;\r
  28     public final Resource Source;\r
  29     public final Resource Subject;\r
  30     public final Resource Title;\r
  31     public final Resource Type;\r
  32         \r
  33     public static class URIs {\r
  34         public static final String Bar = "http://www.simantics.org/DublinCore-1.1/Bar";\r
  35         public static final String Contributor = "http://www.simantics.org/DublinCore-1.1/Contributor";\r
  36         public static final String Coverage = "http://www.simantics.org/DublinCore-1.1/Coverage";\r
  37         public static final String Creator = "http://www.simantics.org/DublinCore-1.1/Creator";\r
  38         public static final String Date = "http://www.simantics.org/DublinCore-1.1/Date";\r
  39         public static final String Date_Inverse = "http://www.simantics.org/DublinCore-1.1/Date/Inverse";\r
  40         public static final String Description = "http://www.simantics.org/DublinCore-1.1/Description";\r
  41         public static final String Foo = "http://www.simantics.org/DublinCore-1.1/Foo";\r
  42         public static final String Format = "http://www.simantics.org/DublinCore-1.1/Format";\r
  43         public static final String Identifier = "http://www.simantics.org/DublinCore-1.1/Identifier";\r
  44         public static final String Identifier_Inverse = "http://www.simantics.org/DublinCore-1.1/Identifier/Inverse";\r
  45         public static final String Language = "http://www.simantics.org/DublinCore-1.1/Language";\r
  46         public static final String Publisher = "http://www.simantics.org/DublinCore-1.1/Publisher";\r
  47         public static final String Relation = "http://www.simantics.org/DublinCore-1.1/Relation";\r
  48         public static final String Rights = "http://www.simantics.org/DublinCore-1.1/Rights";\r
  49         public static final String Source = "http://www.simantics.org/DublinCore-1.1/Source";\r
  50         public static final String Subject = "http://www.simantics.org/DublinCore-1.1/Subject";\r
  51         public static final String Title = "http://www.simantics.org/DublinCore-1.1/Title";\r
  52         public static final String Type = "http://www.simantics.org/DublinCore-1.1/Type";\r
  53     }\r
  54     \r
  55     public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
  56         try {\r
  57             return graph.getResource(uri);\r
  58         } catch(DatabaseException e) {\r
  59             System.err.println(e.getMessage());\r
  60             return null;\r
  61         }\r
  62     }\r
  63     \r
  64     public DublinCore(ReadGraph graph) {\r
  65         Bar = getResourceOrNull(graph, URIs.Bar);\r
  66         Contributor = getResourceOrNull(graph, URIs.Contributor);\r
  67         Coverage = getResourceOrNull(graph, URIs.Coverage);\r
  68         Creator = getResourceOrNull(graph, URIs.Creator);\r
  69         Date = getResourceOrNull(graph, URIs.Date);\r
  70         Date_Inverse = getResourceOrNull(graph, URIs.Date_Inverse);\r
  71         Description = getResourceOrNull(graph, URIs.Description);\r
  72         Foo = getResourceOrNull(graph, URIs.Foo);\r
  73         Format = getResourceOrNull(graph, URIs.Format);\r
  74         Identifier = getResourceOrNull(graph, URIs.Identifier);\r
  75         Identifier_Inverse = getResourceOrNull(graph, URIs.Identifier_Inverse);\r
  76         Language = getResourceOrNull(graph, URIs.Language);\r
  77         Publisher = getResourceOrNull(graph, URIs.Publisher);\r
  78         Relation = getResourceOrNull(graph, URIs.Relation);\r
  79         Rights = getResourceOrNull(graph, URIs.Rights);\r
  80         Source = getResourceOrNull(graph, URIs.Source);\r
  81         Subject = getResourceOrNull(graph, URIs.Subject);\r
  82         Title = getResourceOrNull(graph, URIs.Title);\r
  83         Type = getResourceOrNull(graph, URIs.Type);\r
  84     }\r
  85     \r
  86     public static DublinCore getInstance(ReadGraph graph) {\r
  87         Session session = graph.getSession();\r
  88         DublinCore ret = session.peekService(DublinCore.class);\r
  89         if(ret == null) {\r
  90             QueryControl qc = graph.getService(QueryControl.class);\r
  91             ret = new DublinCore(qc.getIndependentGraph(graph));\r
  92             session.registerService(DublinCore.class, ret);\r
  93         }\r
  94         return ret;\r
  95     }\r
  96     \r
  97     public static DublinCore getInstance(RequestProcessor session) throws DatabaseException {\r
  98         DublinCore ret = session.peekService(DublinCore.class);\r
  99         if(ret == null) {\r
 100             ret = session.syncRequest(new Read<DublinCore>() {\r
 101                 public DublinCore perform(ReadGraph graph) throws DatabaseException {\r
 102                     QueryControl qc = graph.getService(QueryControl.class);\r
 103                     return new DublinCore(qc.getIndependentGraph(graph));\r
 104                 }\r
 105             });\r
 106             session.registerService(DublinCore.class, ret);\r
 107         }\r
 108         return ret;\r
 109     }\r
 110     \r
 111 }\r
 112 \r