Simplify FontAwesome class

app/src/main/java/com/annimon/hotarufx/ui/FontAwesome.java

@@ -1,11 +1,41 @@
 package com.annimon.hotarufx.ui;
 
 import java.net.URL;
-import java.util.HashMap;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
 import java.util.Map;
+import java.util.stream.Collectors;
 import javafx.scene.text.Font;
+import javafx.util.Pair;
 
-public class FontAwesome {
+public enum FontAwesome {
+
+    CLIPBOARD("\uf0ea", "clipboard"),
+    COPYRIGHT("\uf1f9", "copyright"),
+    FONT_AWESOME("\uf2b4", "font-awesome"),
+    GITHUB("\uf09b", "github"),
+    GLOBE("\uf0ac", "earth", "globe"),
+    PENCIL("\uf040", "pencil"),
+    PLAY("\uf04b", "play"),
+    REDO("\uf01e", "redo"),
+    UNDO("\uf0e2", "undo");
+
+    private final String symbol;
+    private final List<String> names;
+
+    FontAwesome(String symbol, String name, String... aliases) {
+        this.symbol = symbol;
+        names = new ArrayList<>();
+        names.add(name);
+        if (aliases.length > 0) {
+            names.addAll(Arrays.asList(aliases));
+        }
+    }
+
+    public static String getIcon(String name) {
+        return MAPPING.get(name);
+    }
 
     static final Font FONT;
     static {
@@ -13,30 +43,10 @@ public class FontAwesome {
         FONT = Font.loadFont(resource.toExternalForm(), 16);
     }
 
-    public static final String
-            CLIPBOARD = "\uf0ea",
-            COPYRIGHT = "\uf1f9",
-            FONT_AWESOME = "\uf2b4",
-            GITHUB = "\uf09b",
-            GLOBE = "\uf0ac",
-            PENCIL = "\uf040",
-            PLAY = "\uf04b",
-            REDO = "\uf01e",
-            UNDO = "\uf0e2"
-            ;
-
     static final Map<String, String> MAPPING;
     static {
-        MAPPING = new HashMap<>();
+        MAPPING = Arrays.stream(FontAwesome.values())
-        MAPPING.put("clipboard", CLIPBOARD);
+                .flatMap(f -> f.names.stream().map(name -> new Pair<>(name, f.symbol)))
-        MAPPING.put("copyright", COPYRIGHT);
+                .collect(Collectors.toMap(Pair::getKey, Pair::getValue));
-        MAPPING.put("earth", GLOBE);
-        MAPPING.put("font-awesome", FONT_AWESOME);
-        MAPPING.put("github", GITHUB);
-        MAPPING.put("globe", GLOBE);
-        MAPPING.put("pencil", PENCIL);
-        MAPPING.put("play", PLAY);
-        MAPPING.put("redo", REDO);
-        MAPPING.put("undo", UNDO);
     }
 }

app/src/main/java/com/annimon/hotarufx/ui/FontAwesomeIcon.java

@@ -26,7 +26,7 @@ public class FontAwesomeIcon extends Text {
         setFont(FontAwesome.FONT);
         getStyleClass().add("fa-icon");
         icon.addListener((observable, oldValue, newValue) -> {
-            String faIcon = FontAwesome.MAPPING.get(newValue);
+            String faIcon = FontAwesome.getIcon(newValue);
             if (faIcon != null) {
                 setText(faIcon);
             }