Remove LinkedCommand.java

Remove LinkedListener.java
Add LinkageType
Add Linked

BauSystem_Main/src/de/steamwar/bausystem/BauSystem.java

@@ -21,10 +21,7 @@ package de.steamwar.bausystem;
 
 import de.steamwar.bausystem.config.BauServer;
 import de.steamwar.bausystem.linkage.LinkageUtils;
-import de.steamwar.bausystem.linkage.LinkedCommand;
-import de.steamwar.bausystem.linkage.LinkedListener;
 import lombok.Getter;
-import org.bukkit.Bukkit;
 import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -39,15 +36,7 @@ public class BauSystem extends JavaPlugin implements Listener {
     public void onEnable() {
         instance = this;
 
-        LinkageUtils.link(LinkedCommand.class, clazz -> clazz.getSuperclass() == de.steamwar.command.SWCommand.class, o -> {});
-        LinkageUtils.link(LinkedListener.class, clazz -> {
-            for (Class<?> interfaceClazz : clazz.getInterfaces()) {
-                if (interfaceClazz == Listener.class) {
-                    return true;
-                }
-            }
-            return false;
-        }, o -> Bukkit.getPluginManager().registerEvents((Listener) o, BauSystem.instance));
+        LinkageUtils.link();
 
         new BauServer();
     }

BauSystem_Main/src/de/steamwar/bausystem/linkage/LinkageType.java

@@ -0,0 +1,51 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2021  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.bausystem.linkage;
+
+import de.steamwar.bausystem.BauSystem;
+import de.steamwar.command.SWCommand;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.bukkit.Bukkit;
+import org.bukkit.event.Listener;
+
+import java.util.function.Consumer;
+import java.util.function.Predicate;
+
+@RequiredArgsConstructor
+@AllArgsConstructor
+public enum LinkageType {
+    LISTENER(clazz -> {
+        for (Class<?> interfaceClazz : clazz.getInterfaces()) {
+            if (interfaceClazz == Listener.class) {
+                return true;
+            }
+        }
+        return false;
+    }, o -> Bukkit.getPluginManager().registerEvents((Listener) o, BauSystem.getInstance())),
+    COMMAND(clazz -> clazz.getSuperclass() == SWCommand.class);
+
+    @Getter
+    private final Predicate<Class<?>> linkagePredicate;
+
+    @Getter
+    private Consumer<Object> linkageConsumer = o -> {};
+}

BauSystem_Main/src/de/steamwar/bausystem/linkage/LinkageUtils.java

@@ -28,21 +28,17 @@ import java.io.IOException;
 import java.io.InputStreamReader;
 import java.lang.reflect.Constructor;
 import java.lang.reflect.InvocationTargetException;
-import java.util.function.Consumer;
-import java.util.function.Predicate;
+import java.util.HashSet;
+import java.util.Set;
 
 @UtilityClass
 public class LinkageUtils {
 
-    public void link(Class<?> source, Predicate<Class<?>> loadPredicate, Consumer<Object> loader) {
-        try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(BauSystem.class.getResourceAsStream("/de/steamwar/baussystem/" + source.getTypeName())))) {
+    public void link() {
+        try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(BauSystem.class.getResourceAsStream("/de/steamwar/baussystem/" + Linked.class.getTypeName())))) {
             bufferedReader.lines().forEach(s -> {
                 try {
-                    Class<?> clazz = Class.forName(s);
-                    if (!loadPredicate.test(clazz)) {
-                        return;
-                    }
-                    loader.accept(constructInstance(clazz));
+                    link(Class.forName(s));
                 } catch (ClassNotFoundException e) {
                     // ignored
                 }
@@ -54,6 +50,31 @@ public class LinkageUtils {
         }
     }
 
+    private void link(Class<?> clazz) {
+        Linked[] linkages = clazz.getDeclaredAnnotationsByType(Linked.class);
+        if (linkages.length == 0) {
+            return;
+        }
+
+        Set<LinkageType> linkageTypeSet = new HashSet<>();
+        for (Linked linked : linkages) {
+            if (linked == null) {
+                return;
+            }
+            LinkageType linkageType = linked.value();
+            if (linkageType.getLinkagePredicate().test(clazz)) {
+                linkageTypeSet.add(linked.value());
+            }
+        }
+
+        if (linkageTypeSet.isEmpty()) {
+            return;
+        }
+
+        Object object = constructInstance(clazz);
+        linkageTypeSet.forEach(linkageType -> linkageType.getLinkageConsumer().accept(object));
+    }
+
     private Object constructInstance(Class<?> clazz) {
         try {
             Constructor<?> constructor = clazz.getDeclaredConstructor();

BauSystem_Main/src/de/steamwar/bausystem/linkage/Linked.java

@@ -21,13 +21,18 @@ package de.steamwar.bausystem.linkage;
 
 import org.atteo.classindex.IndexAnnotated;
 
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
+import java.lang.annotation.*;
 
 @IndexAnnotated
 @Retention(RetentionPolicy.CLASS)
 @Target({ElementType.TYPE})
-public @interface LinkedCommand {
+@Repeatable(Linked.Linkages.class)
+public @interface Linked {
+    LinkageType value();
+
+    @Retention(RetentionPolicy.CLASS)
+    @Target({ElementType.TYPE})
+    @interface Linkages {
+        Linked[] value() default {};
+    }
 }

BauSystem_Main/src/de/steamwar/bausystem/linkage/LinkedListener.java

@@ -1,33 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2021  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.bausystem.linkage;
-
-import org.atteo.classindex.IndexAnnotated;
-
-import java.lang.annotation.ElementType;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-@IndexAnnotated
-@Retention(RetentionPolicy.CLASS)
-@Target({ElementType.TYPE})
-public @interface LinkedListener {
-}