bundles/org.simantics.layer0x.ontology/src/org/simantics/operation/OperationResource.java

   1 package org.simantics.operation;\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 OperationResource {\r
  12     \r
  13     public final Resource AbstractContextualList;\r
  14     public final Resource ConditionalList;\r
  15     public final Resource ContextualList;\r
  16     public final Resource HasCondition;\r
  17     public final Resource HasElseElement;\r
  18     public final Resource HasThenElement;\r
  19     public final Resource Operation;\r
  20     public final Resource TypeBasedList;\r
  21         \r
  22     public static class URIs {\r
  23         public static final String AbstractContextualList = "http://www.simantics.org/Layer0X-1.1/Operation/AbstractContextualList";\r
  24         public static final String ConditionalList = "http://www.simantics.org/Layer0X-1.1/Operation/ConditionalList";\r
  25         public static final String ContextualList = "http://www.simantics.org/Layer0X-1.1/Operation/ContextualList";\r
  26         public static final String HasCondition = "http://www.simantics.org/Layer0X-1.1/Operation/HasCondition";\r
  27         public static final String HasElseElement = "http://www.simantics.org/Layer0X-1.1/Operation/HasElseElement";\r
  28         public static final String HasThenElement = "http://www.simantics.org/Layer0X-1.1/Operation/HasThenElement";\r
  29         public static final String Operation = "http://www.simantics.org/Layer0X-1.1/Operation/Operation";\r
  30         public static final String TypeBasedList = "http://www.simantics.org/Layer0X-1.1/Operation/TypeBasedList";\r
  31     }\r
  32     \r
  33     public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
  34         try {\r
  35             return graph.getResource(uri);\r
  36         } catch(DatabaseException e) {\r
  37             System.err.println(e.getMessage());\r
  38             return null;\r
  39         }\r
  40     }\r
  41     \r
  42     public OperationResource(ReadGraph graph) {\r
  43         AbstractContextualList = getResourceOrNull(graph, URIs.AbstractContextualList);\r
  44         ConditionalList = getResourceOrNull(graph, URIs.ConditionalList);\r
  45         ContextualList = getResourceOrNull(graph, URIs.ContextualList);\r
  46         HasCondition = getResourceOrNull(graph, URIs.HasCondition);\r
  47         HasElseElement = getResourceOrNull(graph, URIs.HasElseElement);\r
  48         HasThenElement = getResourceOrNull(graph, URIs.HasThenElement);\r
  49         Operation = getResourceOrNull(graph, URIs.Operation);\r
  50         TypeBasedList = getResourceOrNull(graph, URIs.TypeBasedList);\r
  51     }\r
  52     \r
  53     public static OperationResource getInstance(ReadGraph graph) {\r
  54         Session session = graph.getSession();\r
  55         OperationResource ret = session.peekService(OperationResource.class);\r
  56         if(ret == null) {\r
  57             QueryControl qc = graph.getService(QueryControl.class);\r
  58             ret = new OperationResource(qc.getIndependentGraph(graph));\r
  59             session.registerService(OperationResource.class, ret);\r
  60         }\r
  61         return ret;\r
  62     }\r
  63     \r
  64     public static OperationResource getInstance(RequestProcessor session) throws DatabaseException {\r
  65         OperationResource ret = session.peekService(OperationResource.class);\r
  66         if(ret == null) {\r
  67             ret = session.syncRequest(new Read<OperationResource>() {\r
  68                 public OperationResource perform(ReadGraph graph) throws DatabaseException {\r
  69                     QueryControl qc = graph.getService(QueryControl.class);\r
  70                     return new OperationResource(qc.getIndependentGraph(graph));\r
  71                 }\r
  72             });\r
  73             session.registerService(OperationResource.class, ret);\r
  74         }\r
  75         return ret;\r
  76     }\r
  77     \r
  78 }\r
  79 \r