src/de/steamwar/command/SWCommandUtils.java

@@ -38,7 +38,11 @@ public class SWCommandUtils {
     @Getter
     private final Map<String, AbstractGuardChecker<?>> GUARD_FUNCTIONS = new HashMap<>();
 
-    static {
+    private SWTypeMapperCreator swTypeMapperCreator;
+
+    public static <T extends AbstractTypeMapper<K, V>, K, V> void init(SWTypeMapperCreator<T, K, V> swTypeMapperCreator) {
+        SWCommandUtils.swTypeMapperCreator = swTypeMapperCreator;
+
         addMapper(boolean.class, Boolean.class, createMapper(s -> {
             if (s.equalsIgnoreCase("true")) return true;
             if (s.equalsIgnoreCase("false")) return false;
@@ -197,22 +201,12 @@ public class SWCommandUtils {
         return createMapper((s) -> strings.contains(s) ? s : null, s -> strings);
     }
 
-    public static <T extends AbstractTypeMapper<K, V>, K, V> T createMapper(Function<String, V> mapper, Function<String, List<String>> tabCompleter) {
+    public static <T extends AbstractTypeMapper<K, V>, K, V> T createMapper(Function<String, V> mapper, Function<String, Collection<String>> tabCompleter) {
         return createMapper(mapper, (commandSender, s) -> tabCompleter.apply(s));
     }
 
-    public static <T extends AbstractTypeMapper<K, V>, K, V> T createMapper(Function<String, V> mapper, BiFunction<K, String, List<String>> tabCompleter) {
-        return (T) new AbstractTypeMapper<K, V>() {
-            @Override
-            public V map(K commandSender, String[] previousArguments, String s) {
-                return mapper.apply(s);
-            }
-
-            @Override
-            public List<String> tabCompletes(K commandSender, String[] previous, String s) {
-                return tabCompleter.apply(commandSender, s);
-            }
-        };
+    public static <T extends AbstractTypeMapper<K, V>, K, V> T createMapper(Function<String, V> mapper, BiFunction<K, String, Collection<String>> tabCompleter) {
+        return (T) swTypeMapperCreator.createTypeMapper(mapper, tabCompleter);
     }
 
     public static <T extends AbstractTypeMapper<K, Enum<?>>, K> T createEnumMapper(Class<Enum<?>> enumClass) {
@@ -220,17 +214,7 @@ public class SWCommandUtils {
         for (Enum<?> e : enumClass.getEnumConstants()) {
             enumMap.put(e.name().toLowerCase(), e);
         }
-        return (T) new AbstractTypeMapper<Object, Enum<?>>() {
-            @Override
-            public Enum<?> map(Object commandSender, String[] previousArguments, String s) {
-                return enumMap.get(s.toLowerCase());
-            }
-
-            @Override
-            public Collection<String> tabCompletes(Object commandSender, String[] previousArguments, String s) {
-                return enumMap.keySet();
-            }
-        };
+        return createMapper(s -> enumMap.get(s.toLowerCase()), (k, s) -> enumMap.keySet());
     }
 
     private static <T> Function<String, T> numberMapper(Function<String, T> mapper) {
@@ -249,7 +233,7 @@ public class SWCommandUtils {
         };
     }
 
-    private static Function<String, List<String>> numberCompleter(Function<String, ?> mapper) {
+    private static Function<String, Collection<String>> numberCompleter(Function<String, ?> mapper) {
         return s -> numberMapper(mapper).apply(s) != null
                 ? Collections.singletonList(s)
                 : Collections.emptyList();

src/de/steamwar/command/SWTypeMapperCreator.java

@@ -0,0 +1,28 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.command;
+
+import java.util.List;
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+public interface SWTypeMapperCreator<T extends AbstractTypeMapper<K, V>, K, V> {
+    T createTypeMapper(Function<String, V> mapper, BiFunction<K, String, List<String>> tabCompleter);
+}