ONOS-1819 - GUI -- Group view added (WIP). Enum Cell Formatter created.

Change-Id: I6ade17a1dfd17cf2049bafe654d6411244d4ad07
diff --git a/core/api/src/main/java/org/onosproject/ui/table/cell/EnumFormatter.java b/core/api/src/main/java/org/onosproject/ui/table/cell/EnumFormatter.java
new file mode 100644
index 0000000..7060e82
--- /dev/null
+++ b/core/api/src/main/java/org/onosproject/ui/table/cell/EnumFormatter.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright 2015 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.ui.table.cell;
+
+import org.onosproject.ui.table.CellFormatter;
+
+import static org.apache.commons.lang.WordUtils.capitalizeFully;
+
+/**
+ * Formats enum types to be readable strings.
+ */
+public class EnumFormatter extends AbstractCellFormatter {
+
+    @Override
+    protected String nonNullFormat(Object value) {
+        return capitalizeFully(value.toString().replace("_", " "));
+    }
+
+    /**
+     * An instance of this class.
+     */
+    public static final CellFormatter INSTANCE = new EnumFormatter();
+}