Add LinkageUtils

Add LinkedCommand
Add LinkedListener

BauSystem_Main/build.gradle

@@ -51,8 +51,19 @@ dependencies {
     annotationProcessor 'org.projectlombok:lombok:1.18.6'
     testAnnotationProcessor 'org.projectlombok:lombok:1.18.6'
 
+    implementation 'org.atteo.classindex:classindex:3.4'
+    testImplementation 'org.atteo.classindex:classindex:3.4'
+    annotationProcessor 'org.atteo.classindex:classindex:3.4'
+    testAnnotationProcessor 'org.atteo.classindex:classindex:3.4'
+
     compileOnly files("${projectDir}/../lib/Spigot-1.15.jar")
     compileOnly files("${projectDir}/../lib/WorldEdit-1.15.jar")
     compileOnly files("${projectDir}/../lib/ProtocolLib.jar")
     compileOnly files("${projectDir}/../lib/SpigotCore.jar")
 }
+
+processResources {
+    from("build/classes/java/main/META-INF/annotations/") {
+        into("de.steamwar.bausystem")
+    }
+}

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

@@ -20,7 +20,11 @@
 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;
 
@@ -35,6 +39,16 @@ 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));
+
         new BauServer();
     }
 

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

@@ -0,0 +1,66 @@
+/*
+ * 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 lombok.experimental.UtilityClass;
+import org.bukkit.Bukkit;
+
+import java.io.BufferedReader;
+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;
+
+@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())))) {
+            bufferedReader.lines().forEach(s -> {
+                try {
+                    Class<?> clazz = Class.forName(s);
+                    if (!loadPredicate.test(clazz)) {
+                        return;
+                    }
+                    loader.accept(constructInstance(clazz));
+                } catch (ClassNotFoundException e) {
+                    // ignored
+                }
+            });
+        } catch (IOException e) {
+            Bukkit.shutdown();
+            return;
+        }
+    }
+
+    private Object constructInstance(Class<?> clazz) {
+        try {
+            Constructor<?> constructor = clazz.getDeclaredConstructor();
+            constructor.setAccessible(true);
+            return constructor.newInstance();
+        } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException | InstantiationException e) {
+            throw new SecurityException(e.getMessage(), e.getCause());
+        }
+    }
+
+}

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

@@ -0,0 +1,33 @@
+/*
+ * 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 LinkedCommand {
+}

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

@@ -0,0 +1,33 @@
+/*
+ * 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 {
+}

build.gradle

@@ -45,7 +45,7 @@ if (file("steamwar.properties").exists()) {
 }
 
 ext {
-    buildName = 'BauSystem'
+    buildName = 'BauSystem2.0'
     artifactName = 'bausystem'
 
     uberJarName = "${buildName}-all.jar"

gradle.properties

@@ -19,5 +19,4 @@
 
 org.gradle.daemon = true
 org.gradle.parallel = true
-org.gradle.configureondemand = true
 org.gradle.workers.max = 4