bundles/org.simantics.layer0/src/org/simantics/layer0/DatabaseManagementResource.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 DatabaseManagementResource {\r
  12     \r
  13     public final Resource Bundles;\r
  14     public final Resource GraphBundle;\r
  15     public final Resource HasFile;\r
  16     public final Resource HasFile_Inverse;\r
  17     public final Resource HasHashCode;\r
  18     public final Resource HasHashCode_Inverse;\r
  19     public final Resource HasInstallInfo;\r
  20     public final Resource HasInstallInfo_Inverse;\r
  21     public final Resource HasVersionedId;\r
  22     public final Resource HasVersionedId_Inverse;\r
  23     public final Resource InstallInfo;\r
  24     public final Resource InstalledGraphBundles;\r
  25     public final Resource OSGiSymbolicName;\r
  26     public final Resource OSGiVersion;\r
  27     public final Resource VersionedId;\r
  28         \r
  29     public static class URIs {\r
  30         public static final String Bundles = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/Bundles";\r
  31         public static final String GraphBundle = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/GraphBundle";\r
  32         public static final String HasFile = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasFile";\r
  33         public static final String HasFile_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasFile/Inverse";\r
  34         public static final String HasHashCode = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasHashCode";\r
  35         public static final String HasHashCode_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasHashCode/Inverse";\r
  36         public static final String HasInstallInfo = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasInstallInfo";\r
  37         public static final String HasInstallInfo_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasInstallInfo/Inverse";\r
  38         public static final String HasVersionedId = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasVersionedId";\r
  39         public static final String HasVersionedId_Inverse = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/HasVersionedId/Inverse";\r
  40         public static final String InstallInfo = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/InstallInfo";\r
  41         public static final String InstalledGraphBundles = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/InstalledGraphBundles";\r
  42         public static final String OSGiSymbolicName = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/OSGiSymbolicName";\r
  43         public static final String OSGiVersion = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/OSGiVersion";\r
  44         public static final String VersionedId = "http://www.simantics.org/Layer0-1.1/DatabaseManagement/VersionedId";\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 DatabaseManagementResource(ReadGraph graph) {\r
  57         Bundles = getResourceOrNull(graph, URIs.Bundles);\r
  58         GraphBundle = getResourceOrNull(graph, URIs.GraphBundle);\r
  59         HasFile = getResourceOrNull(graph, URIs.HasFile);\r
  60         HasFile_Inverse = getResourceOrNull(graph, URIs.HasFile_Inverse);\r
  61         HasHashCode = getResourceOrNull(graph, URIs.HasHashCode);\r
  62         HasHashCode_Inverse = getResourceOrNull(graph, URIs.HasHashCode_Inverse);\r
  63         HasInstallInfo = getResourceOrNull(graph, URIs.HasInstallInfo);\r
  64         HasInstallInfo_Inverse = getResourceOrNull(graph, URIs.HasInstallInfo_Inverse);\r
  65         HasVersionedId = getResourceOrNull(graph, URIs.HasVersionedId);\r
  66         HasVersionedId_Inverse = getResourceOrNull(graph, URIs.HasVersionedId_Inverse);\r
  67         InstallInfo = getResourceOrNull(graph, URIs.InstallInfo);\r
  68         InstalledGraphBundles = getResourceOrNull(graph, URIs.InstalledGraphBundles);\r
  69         OSGiSymbolicName = getResourceOrNull(graph, URIs.OSGiSymbolicName);\r
  70         OSGiVersion = getResourceOrNull(graph, URIs.OSGiVersion);\r
  71         VersionedId = getResourceOrNull(graph, URIs.VersionedId);\r
  72     }\r
  73     \r
  74     public static DatabaseManagementResource getInstance(ReadGraph graph) {\r
  75         Session session = graph.getSession();\r
  76         DatabaseManagementResource ret = session.peekService(DatabaseManagementResource.class);\r
  77         if(ret == null) {\r
  78             QueryControl qc = graph.getService(QueryControl.class);\r
  79             ret = new DatabaseManagementResource(qc.getIndependentGraph(graph));\r
  80             session.registerService(DatabaseManagementResource.class, ret);\r
  81         }\r
  82         return ret;\r
  83     }\r
  84     \r
  85     public static DatabaseManagementResource getInstance(RequestProcessor session) throws DatabaseException {\r
  86         DatabaseManagementResource ret = session.peekService(DatabaseManagementResource.class);\r
  87         if(ret == null) {\r
  88             ret = session.syncRequest(new Read<DatabaseManagementResource>() {\r
  89                 public DatabaseManagementResource perform(ReadGraph graph) throws DatabaseException {\r
  90                     QueryControl qc = graph.getService(QueryControl.class);\r
  91                     return new DatabaseManagementResource(qc.getIndependentGraph(graph));\r
  92                 }\r
  93             });\r
  94             session.registerService(DatabaseManagementResource.class, ret);\r
  95         }\r
  96         return ret;\r
  97     }\r
  98     \r
  99 }\r
 100 \r