Add more Bukkit utilities

bukkit/src/main/java/org/zhdev/BukkitPlugin.java

@@ -0,0 +1,66 @@
+package org.zhdev;
+
+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.bukkit.scheduler.BukkitTask;
+import org.jetbrains.annotations.NotNull;
+
+public abstract class BukkitPlugin extends JavaPlugin {
+    public void registerCommand(String label, CommandExecutor executor, TabCompleter completer) {
+        PluginCommand command = Bukkit.getPluginCommand(label);
+        if (command != null) {
+            command.setExecutor(executor);
+            command.setTabCompleter(completer);
+        }
+    }
+
+    public void registerCommand(String label, CommandExecutor executor) {
+        registerCommand(label, executor, this);
+    }
+
+    public void registerEvents(Listener listener) {
+        Bukkit.getPluginManager().registerEvents(listener, this);
+    }
+
+    public void cancelTask(int taskId) {
+        Bukkit.getScheduler().cancelTask(taskId);
+    }
+
+    public void cancelTasks() {
+        Bukkit.getScheduler().cancelTasks(this);
+    }
+
+    @NotNull
+    public BukkitTask runTask(@NotNull Runnable task) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTask(this, task);
+    }
+
+    @NotNull
+    public BukkitTask runTaskAsynchronously(@NotNull Runnable task) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTaskAsynchronously(this, task);
+    }
+
+    @NotNull
+    public BukkitTask runTaskLater(@NotNull Runnable task, long delay) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTaskLater(this, task, delay);
+    }
+
+    @NotNull
+    public BukkitTask runTaskLaterAsynchronously(@NotNull Runnable task, long delay) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTaskLaterAsynchronously(this, task, delay);
+    }
+
+    @NotNull
+    public BukkitTask runTaskTimer(@NotNull Runnable task, long delay, long period) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTaskTimer(this, task, delay, period);
+    }
+
+    @NotNull
+    public BukkitTask runTaskTimerAsynchronously(@NotNull Runnable task, long delay, long period) throws IllegalArgumentException {
+        return Bukkit.getScheduler().runTaskTimerAsynchronously(this, task, delay, period);
+    }
+}

bukkit/src/main/java/org/zhdev/PreparedBukkitPlugin.java

@@ -0,0 +1,66 @@
+package org.zhdev;
+
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.event.Listener;
+import org.jetbrains.annotations.NotNull;
+import org.zhdev.config.BukkitConfig;
+import org.zhdev.config.BukkitYamlConfig;
+import org.zhdev.language.Language;
+import org.zhdev.sql.SqlAdapter;
+import org.zhdev.util.ConfigUtils;
+
+public abstract class PreparedBukkitPlugin extends BukkitPlugin implements Listener {
+    protected final BukkitConfig configuration = new BukkitYamlConfig();
+    protected final Language language = new Language();
+    protected final SqlAdapter sqlAdapter = new SqlAdapter();
+
+    @Deprecated
+    @NotNull
+    @Override
+    public FileConfiguration getConfig() {
+        throw new UnsupportedOperationException("You should use PreparedBukkitPlugin#getConfiguration");
+    }
+
+    public BukkitConfig getConfiguration() {
+        return configuration;
+    }
+
+    public Language getLanguage() {
+        return language;
+    }
+
+    protected void onLoading() {}
+
+    protected void onEnabling() {}
+
+    protected void onDisabling() {}
+
+    @Override
+    public final void onLoad() {
+        configuration.load(this);
+
+        String locale = configuration.getString("locale", "default");
+        BukkitConfig languageConfig = new BukkitYamlConfig("language/" + locale + ".yml");
+        languageConfig.load(this);
+        ConfigUtils.addPhrases(language, languageConfig);
+
+        BukkitConfig databaseConfig = new BukkitYamlConfig("database.yml");
+        databaseConfig.load(this);
+        sqlAdapter.setConnection(ConfigUtils.createSqlConnection(databaseConfig, getDataFolder().getPath()));
+
+        onLoading();
+    }
+
+    @Override
+    public final void onEnable() {
+        registerEvents(this);
+        onEnabling();
+    }
+
+    @Override
+    public final void onDisable() {
+        onDisabling();
+        sqlAdapter.close();
+        configuration.clear();
+    }
+}

bukkit/src/main/java/org/zhdev/config/BukkitYamlConfig.java

@@ -7,6 +7,7 @@ import org.yaml.snakeyaml.nodes.Node;
 import org.zhdev.util.ResourceUtils;
 
 import java.io.File;
+import java.io.IOException;
 import java.io.InputStream;
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -56,8 +57,13 @@ public class BukkitYamlConfig extends YamlConfig implements BukkitConfig {
         File file = load(plugin.getDataFolder().getPath() + File.separatorChar + path);
         if (file.length() == 0) {
             ResourceUtils.saveResource(path, file, classLoader);
+            try {
+                load(file);
+            } catch (IOException e) {
+                throw new ConfigException(e);
             }
-        return load(plugin.getDataFolder().getPath() + File.separatorChar + path);
+        }
+        return file;
     }
 
     @Override