Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.project / src / org / simantics / project / internal / SafeName.java

diff --git a/bundles/org.simantics.project/src/org/simantics/project/internal/SafeName.java b/bundles/org.simantics.project/src/org/simantics/project/internal/SafeName.java
new file mode 100644 (file)
index 0000000..229a83e
--- /dev/null
+++ b/bundles/org.simantics.project/src/org/simantics/project/internal/SafeName.java
@@ -0,0 +1,37 @@
+/*******************************************************************************\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.project.internal;\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.layer0.Layer0;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public class SafeName extends ResourceRead<String> {\r
+\r
+    public SafeName(Resource r) {\r
+        super(r);\r
+    }\r
+\r
+    @Override\r
+    public String perform(ReadGraph graph) throws DatabaseException {\r
+        String name = graph.getPossibleRelatedValue(resource, Layer0.getInstance(graph).HasName);\r
+        if (name == null)\r
+            name = "(no name)";\r
+        return name;\r
+    }\r
+\r
+}\r