Add registering utils in CoreJavaPlugin

Author: dkim19375

build.gradle

@@ -8,7 +8,7 @@ sourceCompatibility = targetCompatibility = JavaVersion.VERSION_1_8
 compileJava.options.encoding 'UTF-8'
 
 group 'me.dkim19375'
-version '2.5.1'
+version '2.6.0'
 
 repositories {
     mavenCentral()

src/main/java/me/dkim19375/dkim19375core/CoreJavaPlugin.java

@@ -1,17 +1,27 @@
 package me.dkim19375.dkim19375core;
 
 import org.bukkit.Bukkit;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.command.TabCompleter;
+import org.bukkit.event.Listener;
 import org.bukkit.plugin.java.JavaPlugin;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
+import java.util.HashSet;
+import java.util.Set;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
 public abstract class CoreJavaPlugin extends JavaPlugin {
     private static final Logger logger = Bukkit.getLogger();
+    private final Set<ConfigFile> files = new HashSet<>();
 
-    public static void log(Level level, String msg) {
-        logger.log(level, msg);
-    }
+    public static void log(Level level, String msg) { logger.log(level, msg); }
+
+    @SuppressWarnings("unused")
+    public static void log(String msg) { log(Level.INFO, msg); }
 
     @Override
     public abstract void onEnable();
@@ -23,5 +33,57 @@ public static void log(Level level, String msg) {
     public void reloadConfig() {
         saveDefaultConfig();
         super.reloadConfig();
+        files.forEach(this::reloadConfig);
+    }
+
+    public void reloadConfig(ConfigFile config) {
+        config.saveDefaultConfig();
+        config.reload();
+    }
+
+    public void registerCommand(@NotNull String command, @NotNull CommandExecutor executor, @Nullable TabCompleter tabCompleter) {
+        final PluginCommand cmd = getCommand(command);
+        if (cmd == null) {
+            logger.log(Level.SEVERE, "Could not register command: " + command + "!");
+            getServer().getPluginManager().disablePlugin(this);
+            throw new NullPointerException("[" + getDescription().getName() + "] Could not register command: " + command + "!");
+        }
+        cmd.setExecutor(executor);
+        if (tabCompleter != null) {
+            cmd.setTabCompleter(tabCompleter);
+        }
+    }
+
+    @SuppressWarnings("unused")
+    public void registerCommand(@NotNull String command, @NotNull CommandExecutor executor) {
+        registerCommand(command, executor, null);
+    }
+
+    @SuppressWarnings("unused")
+    public void registerListener(Listener listener) {
+        getServer().getPluginManager().registerEvents(listener, this);
+    }
+
+    @SuppressWarnings("unused")
+    public void registerConfig(ConfigFile config) {
+        unregisterConfig(config);
+        files.add(config);
+        reloadConfig(config);
+    }
+
+    public void unregisterConfig(ConfigFile config) {
+        unregisterConfig(config.getName());
+    }
+
+    public void unregisterConfig(String config) {
+        new HashSet<>(files).forEach(file -> {
+            if (file.getName().equals(config)) {
+                files.remove(file);
+            }
+        });
+    }
+
+    public Set<ConfigFile> getRegisteredFiles() {
+        return files;
     }
 }