bundles/org.simantics.layer0/src/org/simantics/layer0/DatabaseManagementResource.java

   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 DatabaseManagementResource {
  12
  13     public final Resource Bundles;
  14     public final Resource GraphBundle;
  15     public final Resource HasFile;
  16     public final Resource HasFile_Inverse;
  17     public final Resource HasHashCode;
  18     public final Resource HasHashCode_Inverse;
  19     public final Resource HasInstallInfo;
  20     public final Resource HasInstallInfo_Inverse;
  21     public final Resource HasVersionedId;
  22     public final Resource HasVersionedId_Inverse;
  23     public final Resource InstallInfo;
  24     public final Resource InstalledGraphBundles;
  25     public final Resource OSGiSymbolicName;
  26     public final Resource OSGiVersion;
  27     public final Resource VersionedId;
  28
  29     public static class URIs {
  30         public static final String Bundles = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/Bundles";
  31         public static final String GraphBundle = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/GraphBundle";
  32         public static final String HasFile = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasFile";
  33         public static final String HasFile_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasFile/Inverse";
  34         public static final String HasHashCode = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasHashCode";
  35         public static final String HasHashCode_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasHashCode/Inverse";
  36         public static final String HasInstallInfo = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasInstallInfo";
  37         public static final String HasInstallInfo_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasInstallInfo/Inverse";
  38         public static final String HasVersionedId = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasVersionedId";
  39         public static final String HasVersionedId_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasVersionedId/Inverse";
  40         public static final String InstallInfo = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/InstallInfo";
  41         public static final String InstalledGraphBundles = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/InstalledGraphBundles";
  42         public static final String OSGiSymbolicName = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/OSGiSymbolicName";
  43         public static final String OSGiVersion = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/OSGiVersion";
  44         public static final String VersionedId = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/VersionedId";
  45     }
  46
  47     public static Resource getResourceOrNull(ReadGraph graph, String uri) {
  48         try {
  49             return graph.getResource(uri);
  50         } catch(DatabaseException e) {
  51             System.err.println(e.getMessage());
  52             return null;
  53         }
  54     }
  55
  56     public DatabaseManagementResource(ReadGraph graph) {
  57         Bundles = getResourceOrNull(graph, URIs.Bundles);
  58         GraphBundle = getResourceOrNull(graph, URIs.GraphBundle);
  59         HasFile = getResourceOrNull(graph, URIs.HasFile);
  60         HasFile_Inverse = getResourceOrNull(graph, URIs.HasFile_Inverse);
  61         HasHashCode = getResourceOrNull(graph, URIs.HasHashCode);
  62         HasHashCode_Inverse = getResourceOrNull(graph, URIs.HasHashCode_Inverse);
  63         HasInstallInfo = getResourceOrNull(graph, URIs.HasInstallInfo);
  64         HasInstallInfo_Inverse = getResourceOrNull(graph, URIs.HasInstallInfo_Inverse);
  65         HasVersionedId = getResourceOrNull(graph, URIs.HasVersionedId);
  66         HasVersionedId_Inverse = getResourceOrNull(graph, URIs.HasVersionedId_Inverse);
  67         InstallInfo = getResourceOrNull(graph, URIs.InstallInfo);
  68         InstalledGraphBundles = getResourceOrNull(graph, URIs.InstalledGraphBundles);
  69         OSGiSymbolicName = getResourceOrNull(graph, URIs.OSGiSymbolicName);
  70         OSGiVersion = getResourceOrNull(graph, URIs.OSGiVersion);
  71         VersionedId = getResourceOrNull(graph, URIs.VersionedId);
  72     }
  73
  74     public static DatabaseManagementResource getInstance(ReadGraph graph) {
  75         Session session = graph.getSession();
  76         DatabaseManagementResource ret = session.peekService(DatabaseManagementResource.class);
  77         if(ret == null) {
  78             QueryControl qc = graph.getService(QueryControl.class);
  79             ret = new DatabaseManagementResource(qc.getIndependentGraph(graph));
  80             session.registerService(DatabaseManagementResource.class, ret);
  81         }
  82         return ret;
  83     }
  84
  85     public static DatabaseManagementResource getInstance(RequestProcessor session) throws DatabaseException {
  86         DatabaseManagementResource ret = session.peekService(DatabaseManagementResource.class);
  87         if(ret == null) {
  88             ret = session.syncRequest(new Read<DatabaseManagementResource>() {
  89                 public DatabaseManagementResource perform(ReadGraph graph) throws DatabaseException {
  90                     QueryControl qc = graph.getService(QueryControl.class);
  91                     return new DatabaseManagementResource(qc.getIndependentGraph(graph));
  92                 }
  93             });
  94             session.registerService(DatabaseManagementResource.class, ret);
  95         }
  96         return ret;
  97     }
  98
  99 }
 100