--- /dev/null
+package org.simantics.district.network.ui.ontology;
+
+import org.simantics.db.RequestProcessor;
+import org.simantics.db.Resource;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.request.Read;
+import org.simantics.db.Session;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.QueryControl;
+
+public class DistrictNetworkUIResource {
+
+ public final Resource NetworkProperties;
+ public final Resource SelectionTab;
+ public final Resource SelectionTabContribution;
+
+ public static class URIs {
+ public static final String NetworkProperties = "http://www.simantics.org/DistrictNetworkUI-1.0/NetworkProperties";
+ public static final String SelectionTab = "http://www.simantics.org/DistrictNetworkUI-1.0/SelectionTab";
+ public static final String SelectionTabContribution = "http://www.simantics.org/DistrictNetworkUI-1.0/SelectionTabContribution";
+ }
+
+ public static Resource getResourceOrNull(ReadGraph graph, String uri) {
+ try {
+ return graph.getResource(uri);
+ } catch(DatabaseException e) {
+ System.err.println(e.getMessage());
+ return null;
+ }
+ }
+
+ public DistrictNetworkUIResource(ReadGraph graph) {
+ NetworkProperties = getResourceOrNull(graph, URIs.NetworkProperties);
+ SelectionTab = getResourceOrNull(graph, URIs.SelectionTab);
+ SelectionTabContribution = getResourceOrNull(graph, URIs.SelectionTabContribution);
+ }
+
+ public static DistrictNetworkUIResource getInstance(ReadGraph graph) {
+ Session session = graph.getSession();
+ DistrictNetworkUIResource ret = session.peekService(DistrictNetworkUIResource.class);
+ if(ret == null) {
+ QueryControl qc = graph.getService(QueryControl.class);
+ ret = new DistrictNetworkUIResource(qc.getIndependentGraph(graph));
+ session.registerService(DistrictNetworkUIResource.class, ret);
+ }
+ return ret;
+ }
+
+ public static DistrictNetworkUIResource getInstance(RequestProcessor session) throws DatabaseException {
+ DistrictNetworkUIResource ret = session.peekService(DistrictNetworkUIResource.class);
+ if(ret == null) {
+ ret = session.syncRequest(new Read<DistrictNetworkUIResource>() {
+ public DistrictNetworkUIResource perform(ReadGraph graph) throws DatabaseException {
+ QueryControl qc = graph.getService(QueryControl.class);
+ return new DistrictNetworkUIResource(qc.getIndependentGraph(graph));
+ }
+ });
+ session.registerService(DistrictNetworkUIResource.class, ret);
+ }
+ return ret;
+ }
+
+}
+