Optimize SWCommandUtils.numberCompleter

SpigotCore_Main/src/de/steamwar/command/SWCommandUtils.java

@@ -50,10 +50,7 @@ public class SWCommandUtils {
 
     static final BiFunction<Class<Enum<?>>, String, Enum<?>> ENUM_MAPPER = (enumClass, s) -> {
         Enum<?>[] enums = enumClass.getEnumConstants();
-        for (Enum<?> e : enums) {
-            if (e.name().equalsIgnoreCase(s)) return e;
-        }
-        return null;
+        return Arrays.stream(enums).filter(e -> e.name().equalsIgnoreCase(s)).findFirst().orElse(null);
     };
 
     static {
@@ -105,9 +102,7 @@ public class SWCommandUtils {
         Object[] arguments = new Object[parameters.length + 1];
         int index = 0;
         while (index < subCommand.length) {
-            if (!args[index].equalsIgnoreCase(subCommand[index])) {
-                throw new CommandParseException();
-            }
+            if (!args[index].equalsIgnoreCase(subCommand[index])) throw new CommandParseException();
             index++;
         }
 
@@ -116,17 +111,13 @@ public class SWCommandUtils {
             length = args.length - parameters.length - subCommand.length + 1;
             arguments[arguments.length - 1] = Array.newInstance(varArgType, length);
 
-            if (index > args.length - 1) {
-                return arguments;
-            }
+            if (index > args.length - 1) return arguments;
         }
 
         for (int i = 0; i < parameters.length - (varArgType != null ? 1 : 0); i++) {
             arguments[i + 1] = parameters[i].map(commandSender, Arrays.copyOf(args, index), args[index]);
             index++;
-            if (arguments[i + 1] == null) {
-                throw new CommandParseException();
-            }
+            if (arguments[i + 1] == null) throw new CommandParseException();
         }
 
         if (varArgType != null) {
@@ -134,9 +125,7 @@ public class SWCommandUtils {
 
             for (int i = 0; i < length; i++) {
                 Object value = parameters[parameters.length - 1].map(commandSender, Arrays.copyOf(args, index), args[index]);
-                if (value == null) {
-                    throw new CommandParseException();
-                }
+                if (value == null) throw new CommandParseException();
                 Array.set(varArgument, i, value);
                 index++;
             }
@@ -149,8 +138,7 @@ public class SWCommandUtils {
     }
 
     public static void addMapper(String name, TypeMapper<?> mapper) {
-        if (MAPPER_FUNCTIONS.containsKey(name)) return;
-        MAPPER_FUNCTIONS.put(name, mapper);
+        MAPPER_FUNCTIONS.putIfAbsent(name, mapper);
     }
 
     public static <T> TypeMapper<T> createMapper(Function<String, T> mapper, Function<String, List<String>> tabCompleter) {