org.simantics.district.route.ontology/src/org/simantics/district/route/ontology/RouteResource.java

   1 package org.simantics.district.route.ontology;
   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 RouteResource {
  12
  13     public final Resource Actions;
  14     public final Resource Actions_SelectRoute;
  15     public final Resource Route;
  16     public final Resource RouteActionContext;
  17     public final Resource RouteFolder;
  18
  19     public static class URIs {
  20         public static final String Actions = "http://www.simantics.org/DistrictNetworkRoutes-1.0/Actions";
  21         public static final String Actions_SelectRoute = "http://www.simantics.org/DistrictNetworkRoutes-1.0/Actions/SelectRoute";
  22         public static final String Route = "http://www.simantics.org/DistrictNetworkRoutes-1.0/Route";
  23         public static final String RouteActionContext = "http://www.simantics.org/DistrictNetworkRoutes-1.0/RouteActionContext";
  24         public static final String RouteFolder = "http://www.simantics.org/DistrictNetworkRoutes-1.0/RouteFolder";
  25     }
  26
  27     public static Resource getResourceOrNull(ReadGraph graph, String uri) {
  28         try {
  29             return graph.getResource(uri);
  30         } catch(DatabaseException e) {
  31             System.err.println(e.getMessage());
  32             return null;
  33         }
  34     }
  35
  36     public RouteResource(ReadGraph graph) {
  37         Actions = getResourceOrNull(graph, URIs.Actions);
  38         Actions_SelectRoute = getResourceOrNull(graph, URIs.Actions_SelectRoute);
  39         Route = getResourceOrNull(graph, URIs.Route);
  40         RouteActionContext = getResourceOrNull(graph, URIs.RouteActionContext);
  41         RouteFolder = getResourceOrNull(graph, URIs.RouteFolder);
  42     }
  43
  44     public static RouteResource getInstance(ReadGraph graph) {
  45         Session session = graph.getSession();
  46         RouteResource ret = session.peekService(RouteResource.class);
  47         if(ret == null) {
  48             QueryControl qc = graph.getService(QueryControl.class);
  49             ret = new RouteResource(qc.getIndependentGraph(graph));
  50             session.registerService(RouteResource.class, ret);
  51         }
  52         return ret;
  53     }
  54
  55     public static RouteResource getInstance(RequestProcessor session) throws DatabaseException {
  56         RouteResource ret = session.peekService(RouteResource.class);
  57         if(ret == null) {
  58             ret = session.syncRequest(new Read<RouteResource>() {
  59                 public RouteResource perform(ReadGraph graph) throws DatabaseException {
  60                     QueryControl qc = graph.getService(QueryControl.class);
  61                     return new RouteResource(qc.getIndependentGraph(graph));
  62                 }
  63             });
  64             session.registerService(RouteResource.class, ret);
  65         }
  66         return ret;
  67     }
  68
  69 }
  70