Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.graph.impl / src / org / simantics / browsing / ui / graph / impl / LabelerUtil.java

diff --git a/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LabelerUtil.java b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LabelerUtil.java
new file mode 100644 (file)
index 0000000..f48e01f
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.graph.impl/src/org/simantics/browsing/ui/graph/impl/LabelerUtil.java
@@ -0,0 +1,73 @@
+/*******************************************************************************\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.browsing.ui.graph.impl;\r
+\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.common.utils.NameUtils;\r
+import org.simantics.db.exception.AdaptionException;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.layer0.utils.representation.StringRepresentation2;\r
+import org.simantics.utils.datastructures.slice.ValueRange;\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ */\r
+public final class LabelerUtil {\r
+\r
+    /**\r
+     * @param g\r
+     * @param r\r
+     * @return\r
+     */\r
+    public static String safeStringRepresentation(ReadGraph g, Resource r) throws DatabaseException {\r
+        try {\r
+            String rep = g.adapt(r, String.class);\r
+            return rep;\r
+        } catch (AdaptionException e) {\r
+            return "<no string representation: " + e.getMessage() + ">";\r
+        } catch (DatabaseException e) {\r
+            return NameUtils.getSafeName(g, r);\r
+        }\r
+    }\r
+\r
+    /**\r
+     * @param g\r
+     * @param r\r
+     * @param range\r
+     * @return\r
+     */\r
+    public static String safeStringRepresentation(ReadGraph g, Resource r, int index) throws DatabaseException {\r
+        try {\r
+            StringRepresentation2 rep = g.adapt(r, StringRepresentation2.class);\r
+            return rep.get(g, index);\r
+        } catch (AdaptionException e) {\r
+            return "<no string representation: " + e.getMessage() + ">";\r
+        }\r
+    }\r
+\r
+    /**\r
+     * @param g\r
+     * @param r\r
+     * @param range\r
+     * @return\r
+     */\r
+    public static String safeStringRepresentation(ReadGraph g, Resource r, ValueRange range) throws DatabaseException {\r
+        try {\r
+            StringRepresentation2 rep = g.adapt(r, StringRepresentation2.class);\r
+            return rep.get(g, range.start(), range.size());\r
+        } catch (AdaptionException e) {\r
+            return "<no string representation: " + e.getMessage() + ">";\r
+        }\r
+    }\r
+\r
+}\r