Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsModelActive.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsModelActive.java
new file mode 100644 (file)
index 0000000..b1af92f
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/IsModelActive.java
@@ -0,0 +1,22 @@
+package org.simantics.db.layer0.request;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.request.ResourceRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.operation.Layer0X;\r
+\r
+public class IsModelActive extends ResourceRead<Boolean> {\r
+\r
+    public IsModelActive(Resource resource) {\r
+        super(resource);\r
+    }\r
+\r
+    @Override\r
+    public Boolean perform(ReadGraph graph) throws DatabaseException {\r
+       Resource model = graph.sync(new PossibleModel(resource));\r
+       if(model == null) return false;\r
+       return graph.hasStatement(model, Layer0X.getInstance(graph).IsActivatedBy);\r
+    }\r
+\r
+}\r