org.simantics.interop/src/org/simantics/interop/stubs/InteropResource.java

   1 package org.simantics.interop.stubs;
   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 InteropResource {
  12
  13     public final Resource HasDestination;
  14     public final Resource HasGeneratorID;
  15     public final Resource HasGeneratorID_Inverse;
  16     public final Resource HasImportData;
  17     public final Resource HasInputResource;
  18     public final Resource HasSource;
  19     public final Resource ImportDataOf;
  20     public final Resource ImportLibrary;
  21
  22     public static class URIs {
  23         public static final String HasDestination = "http://www.simantics.org/Interop-1.0/HasDestination";
  24         public static final String HasGeneratorID = "http://www.simantics.org/Interop-1.0/HasGeneratorID";
  25         public static final String HasGeneratorID_Inverse = "http://www.simantics.org/Interop-1.0/HasGeneratorID/Inverse";
  26         public static final String HasImportData = "http://www.simantics.org/Interop-1.0/HasImportData";
  27         public static final String HasInputResource = "http://www.simantics.org/Interop-1.0/HasInputResource";
  28         public static final String HasSource = "http://www.simantics.org/Interop-1.0/HasSource";
  29         public static final String ImportDataOf = "http://www.simantics.org/Interop-1.0/ImportDataOf";
  30         public static final String ImportLibrary = "http://www.simantics.org/Interop-1.0/ImportLibrary";
  31     }
  32
  33     public static Resource getResourceOrNull(ReadGraph graph, String uri) {
  34         try {
  35             return graph.getResource(uri);
  36         } catch(DatabaseException e) {
  37             System.err.println(e.getMessage());
  38             return null;
  39         }
  40     }
  41
  42     public InteropResource(ReadGraph graph) {
  43         HasDestination = getResourceOrNull(graph, URIs.HasDestination);
  44         HasGeneratorID = getResourceOrNull(graph, URIs.HasGeneratorID);
  45         HasGeneratorID_Inverse = getResourceOrNull(graph, URIs.HasGeneratorID_Inverse);
  46         HasImportData = getResourceOrNull(graph, URIs.HasImportData);
  47         HasInputResource = getResourceOrNull(graph, URIs.HasInputResource);
  48         HasSource = getResourceOrNull(graph, URIs.HasSource);
  49         ImportDataOf = getResourceOrNull(graph, URIs.ImportDataOf);
  50         ImportLibrary = getResourceOrNull(graph, URIs.ImportLibrary);
  51     }
  52
  53     public static InteropResource getInstance(ReadGraph graph) {
  54         Session session = graph.getSession();
  55         InteropResource ret = session.peekService(InteropResource.class);
  56         if(ret == null) {
  57             QueryControl qc = graph.getService(QueryControl.class);
  58             ret = new InteropResource(qc.getIndependentGraph(graph));
  59             session.registerService(InteropResource.class, ret);
  60         }
  61         return ret;
  62     }
  63
  64     public static InteropResource getInstance(RequestProcessor session) throws DatabaseException {
  65         InteropResource ret = session.peekService(InteropResource.class);
  66         if(ret == null) {
  67             ret = session.syncRequest(new Read<InteropResource>() {
  68                 public InteropResource perform(ReadGraph graph) throws DatabaseException {
  69                     QueryControl qc = graph.getService(QueryControl.class);
  70                     return new InteropResource(qc.getIndependentGraph(graph));
  71                 }
  72             });
  73             session.registerService(InteropResource.class, ret);
  74         }
  75         return ret;
  76     }
  77
  78 }
  79