--- /dev/null
+package org.simantics.color;\r
+\r
+import org.simantics.db.RequestProcessor;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.QueryControl;\r
+\r
+public class ColorResource {\r
+ \r
+ public final Resource RGB;\r
+ \r
+ public static class URIs {\r
+ public static final String RGB = "http://www.simantics.org/Color-1.1/RGB";\r
+ }\r
+ \r
+ public static Resource getResourceOrNull(ReadGraph graph, String uri) {\r
+ try {\r
+ return graph.getResource(uri);\r
+ } catch(DatabaseException e) {\r
+ System.err.println(e.getMessage());\r
+ return null;\r
+ }\r
+ }\r
+ \r
+ public ColorResource(ReadGraph graph) {\r
+ RGB = getResourceOrNull(graph, URIs.RGB);\r
+ }\r
+ \r
+ public static ColorResource getInstance(ReadGraph graph) {\r
+ Session session = graph.getSession();\r
+ ColorResource ret = session.peekService(ColorResource.class);\r
+ if(ret == null) {\r
+ QueryControl qc = graph.getService(QueryControl.class);\r
+ ret = new ColorResource(qc.getIndependentGraph(graph));\r
+ session.registerService(ColorResource.class, ret);\r
+ }\r
+ return ret;\r
+ }\r
+ \r
+ public static ColorResource getInstance(RequestProcessor session) throws DatabaseException {\r
+ ColorResource ret = session.peekService(ColorResource.class);\r
+ if(ret == null) {\r
+ ret = session.syncRequest(new Read<ColorResource>() {\r
+ public ColorResource perform(ReadGraph graph) throws DatabaseException {\r
+ QueryControl qc = graph.getService(QueryControl.class);\r
+ return new ColorResource(qc.getIndependentGraph(graph));\r
+ }\r
+ });\r
+ session.registerService(ColorResource.class, ret);\r
+ }\r
+ return ret;\r
+ }\r
+ \r
+}\r
+\r