gerrit.simantics Code Review - simantics/platform.git/blob

   1 package org.simantics.layer0;
   2
   3 import org.simantics.db.RequestProcessor;
   4 import org.simantics.db.Resource;
   5 import org.simantics.db.ReadGraph;
   6 import org.simantics.db.request.Read;
   7 import org.simantics.db.Session;
   8 import org.simantics.db.exception.DatabaseException;
   9 import org.simantics.db.service.QueryControl;
  10
  11 public class SoftwareConfigurationResources {
  12
  13     public final Resource HasVersion;
  14     public final Resource HasVersion_Inverse;
  15     public final Resource IsCompatibleWith;
  16     public final Resource Product;
  17     public final Resource Update;
  18     public final Resource Update_From;
  19     public final Resource Update_HasMigrationAction;
  20     public final Resource Update_To;
  21     public final Resource Version;
  22     public final Resource Version_HasUpdate;
  23     public final Resource Version_Of;
  24
  25     public static class URIs {
  26         public static final String HasVersion = "http://www.simantics.org/SoftwareConfiguration-1.1/HasVersion";
  27         public static final String HasVersion_Inverse = "http://www.simantics.org/SoftwareConfiguration-1.1/HasVersion/Inverse";
  28         public static final String IsCompatibleWith = "http://www.simantics.org/SoftwareConfiguration-1.1/IsCompatibleWith";
  29         public static final String Product = "http://www.simantics.org/SoftwareConfiguration-1.1/Product";
  30         public static final String Update = "http://www.simantics.org/SoftwareConfiguration-1.1/Update";
  31         public static final String Update_From = "http://www.simantics.org/SoftwareConfiguration-1.1/Update/From";
  32         public static final String Update_HasMigrationAction = "http://www.simantics.org/SoftwareConfiguration-1.1/Update/HasMigrationAction";
  33         public static final String Update_To = "http://www.simantics.org/SoftwareConfiguration-1.1/Update/To";
  34         public static final String Version = "http://www.simantics.org/SoftwareConfiguration-1.1/Version";
  35         public static final String Version_HasUpdate = "http://www.simantics.org/SoftwareConfiguration-1.1/Version/HasUpdate";
  36         public static final String Version_Of = "http://www.simantics.org/SoftwareConfiguration-1.1/Version/Of";
  37     }
  38
  39     public static Resource getResourceOrNull(ReadGraph graph, String uri) {
  40         try {
  41             return graph.getResource(uri);
  42         } catch(DatabaseException e) {
  43             System.err.println(e.getMessage());
  44             return null;
  45         }
  46     }
  47
  48     public SoftwareConfigurationResources(ReadGraph graph) {
  49         HasVersion = getResourceOrNull(graph, URIs.HasVersion);
  50         HasVersion_Inverse = getResourceOrNull(graph, URIs.HasVersion_Inverse);
  51         IsCompatibleWith = getResourceOrNull(graph, URIs.IsCompatibleWith);
  52         Product = getResourceOrNull(graph, URIs.Product);
  53         Update = getResourceOrNull(graph, URIs.Update);
  54         Update_From = getResourceOrNull(graph, URIs.Update_From);
  55         Update_HasMigrationAction = getResourceOrNull(graph, URIs.Update_HasMigrationAction);
  56         Update_To = getResourceOrNull(graph, URIs.Update_To);
  57         Version = getResourceOrNull(graph, URIs.Version);
  58         Version_HasUpdate = getResourceOrNull(graph, URIs.Version_HasUpdate);
  59         Version_Of = getResourceOrNull(graph, URIs.Version_Of);
  60     }
  61
  62     public static SoftwareConfigurationResources getInstance(ReadGraph graph) {
  63         Session session = graph.getSession();
  64         SoftwareConfigurationResources ret = session.peekService(SoftwareConfigurationResources.class);
  65         if(ret == null) {
  66             QueryControl qc = graph.getService(QueryControl.class);
  67             ret = new SoftwareConfigurationResources(qc.getIndependentGraph(graph));
  68             session.registerService(SoftwareConfigurationResources.class, ret);
  69         }
  70         return ret;
  71     }
  72
  73     public static SoftwareConfigurationResources getInstance(RequestProcessor session) throws DatabaseException {
  74         SoftwareConfigurationResources ret = session.peekService(SoftwareConfigurationResources.class);
  75         if(ret == null) {
  76             ret = session.syncRequest(new Read<SoftwareConfigurationResources>() {
  77                 public SoftwareConfigurationResources perform(ReadGraph graph) throws DatabaseException {
  78                     QueryControl qc = graph.getService(QueryControl.class);
  79                     return new SoftwareConfigurationResources(qc.getIndependentGraph(graph));
  80                 }
  81             });
  82             session.registerService(SoftwareConfigurationResources.class, ret);
  83         }
  84         return ret;
  85     }
  86
  87 }
  88