Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.db.layer0 / src / org / simantics / db / layer0 / request / ActiveModels.java

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActiveModels.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActiveModels.java
new file mode 100644 (file)
index 0000000..ffee00d
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActiveModels.java
@@ -0,0 +1,47 @@
+package org.simantics.db.layer0.request;\r
+\r
+import java.util.ArrayList;\r
+import java.util.Collection;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ObjectsWithType;\r
+import org.simantics.db.common.request.ResourceRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.operation.Layer0X;\r
+import org.simantics.simulation.ontology.SimulationResource;\r
+\r
+/**\r
+ * Returns a set of active models.\r
+ * \r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class ActiveModels extends ResourceRead<Collection<Resource>> {\r
+\r
+    public ActiveModels(Resource project) {\r
+        super(project);\r
+    }\r
+\r
+    @Override\r
+    public Collection<Resource> perform(ReadGraph graph) throws DatabaseException {\r
+        Layer0 L0 = Layer0.getInstance(graph);\r
+        Layer0X L0X = Layer0X.getInstance(graph);\r
+        SimulationResource SIMU = SimulationResource.getInstance(graph);\r
+        ArrayList<Resource> result = new ArrayList<Resource>();\r
+        for (Resource model : graph.syncRequest(new ObjectsWithType(resource, L0.ConsistsOf, SIMU.Model))) {\r
+            if (graph.hasStatement(model, L0X.IsActivatedBy))\r
+                result.add(model);\r
+        }\r
+        return result;\r
+    }\r
+    \r
+    public static Resource getPossibleActiveModel(ReadGraph graph, Resource project) throws DatabaseException {\r
+        Collection<Resource> models = graph.syncRequest(new ActiveModels(project));\r
+        if(models.isEmpty())\r
+            return null;\r
+        else\r
+            return models.iterator().next();\r
+    }\r
+\r
+}\r