Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.diagram / src / org / simantics / diagram / synchronization / graph / BasicResources.java

diff --git a/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/BasicResources.java b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/BasicResources.java
new file mode 100644 (file)
index 0000000..16a1a3f
--- /dev/null
+++ b/bundles/org.simantics.diagram/src/org/simantics/diagram/synchronization/graph/BasicResources.java
@@ -0,0 +1,63 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.diagram.synchronization.graph;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Session;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.request.Read;\r
+import org.simantics.diagram.stubs.DiagramResource;\r
+import org.simantics.diagram.stubs.G2DResource;\r
+import org.simantics.layer0.Layer0;\r
+import org.simantics.structural.stubs.StructuralResource2;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class BasicResources {\r
+\r
+    public final Layer0              L0;\r
+    public final G2DResource         G2D;\r
+    public final DiagramResource     DIA;\r
+    public final StructuralResource2 STR;\r
+\r
+    public BasicResources(ReadGraph graph) {\r
+        L0 = Layer0.getInstance(graph);\r
+        G2D = G2DResource.getInstance(graph);\r
+        DIA = DiagramResource.getInstance(graph);\r
+        STR = StructuralResource2.getInstance(graph);\r
+    }\r
+\r
+    public static BasicResources getInstance(ReadGraph graph) {\r
+        BasicResources br = graph.peekService(BasicResources.class);\r
+        if (br == null) {\r
+            br = new BasicResources(graph);\r
+            graph.registerService(BasicResources.class, br);\r
+        }\r
+        return br;\r
+    }\r
+\r
+    public static BasicResources getInstance(Session session) throws DatabaseException {\r
+        BasicResources ret = session.peekService(BasicResources.class);\r
+        if(ret == null) {\r
+            ret = session.syncRequest(new Read<BasicResources>() {\r
+                @Override\r
+                public BasicResources perform(ReadGraph graph) throws DatabaseException {\r
+                    return new BasicResources(graph);\r
+                }\r
+            });\r
+            session.registerService(BasicResources.class, ret);\r
+        }\r
+        return ret;\r
+    }\r
+\r
+}\r