Migrated source code from Simantics SVN

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

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActivateModel.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActivateModel.java
new file mode 100644 (file)
index 0000000..690267d
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/request/ActivateModel.java
@@ -0,0 +1,58 @@
+package org.simantics.db.layer0.request;\r
+\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.VirtualGraph;\r
+import org.simantics.db.WriteGraph;\r
+import org.simantics.db.common.request.WriteResultRequest;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.service.VirtualGraphSupport;\r
+import org.simantics.operation.Layer0X;\r
+\r
+public class ActivateModel extends WriteResultRequest<Boolean> {\r
+\r
+    final Resource project;\r
+    final Resource model;\r
+\r
+    public ActivateModel(Resource project, Resource model) {\r
+        \r
+        if(project == null) throw new IllegalArgumentException("project can not be null");\r
+        this.project = project;\r
+        this.model = model;\r
+        \r
+    }\r
+\r
+    public static Boolean perform(WriteGraph graph, Resource project, Resource model) throws DatabaseException {\r
+        Layer0X L0X = Layer0X.getInstance(graph);\r
+        if (model != null) {\r
+            if (!graph.hasStatement(model, L0X.IsActivatedBy, project)) {\r
+                graph.deny(project, L0X.Activates);\r
+                graph.claim(project, L0X.Activates, model);\r
+                return true;\r
+            }\r
+        } else {\r
+            if (graph.hasStatement(project, L0X.Activates)) {\r
+                graph.deny(project, L0X.Activates);\r
+                return true;\r
+            }\r
+        }\r
+        return false;\r
+    }\r
+\r
+    @Override\r
+    public Boolean perform(WriteGraph graph) throws DatabaseException {\r
+        VirtualGraphSupport support = graph.getService(VirtualGraphSupport.class);\r
+        VirtualGraph activations = support.getWorkspacePersistent("activations");\r
+        VirtualGraph vg = graph.getProvider();\r
+        if (vg == activations) {\r
+            return perform(graph, project, model);\r
+        } else {\r
+            return graph.syncRequest(new WriteResultRequest<Boolean>() {\r
+                @Override\r
+                public Boolean perform(WriteGraph graph) throws DatabaseException {\r
+                    return ActivateModel.perform(graph, project, model);\r
+                }\r
+            });\r
+        }\r
+    }\r
+\r
+}\r