GetLoadChunkCommand.java

package ew.sr.x1c.quilt.meow.plugin;

import java.io.FileWriter;
import java.io.IOException;
import net.md_5.bungee.api.ChatColor;
import org.bukkit.Bukkit;
import org.bukkit.Chunk;
import org.bukkit.World;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;

public class GetLoadChunkCommand implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command cmd, String commandLabel, String[] args) {
        if (!sender.hasPermission("quilt.chunk.log")) {
            sender.sendMessage(ChatColor.RED + "權限不足 無法使用該指令");
            return false;
        }

        sender.sendMessage("準備輸出區塊紀錄 ...");
        String fileName = "LoadChunk-" + System.currentTimeMillis() + ".log";
        StringBuilder sb = new StringBuilder();
        for (World world : Bukkit.getWorlds()) {
            Chunk[] chunkList = world.getLoadedChunks();
            sb.append("世界 : ").append(world.getName()).append(" 載入區塊 : ").append(chunkList.length).append(System.lineSeparator());
            for (Chunk chunk : chunkList) {
                sb.append("X : ").append(chunk.getX() << 4).append(" Z : ").append(chunk.getZ() << 4).append(" 活動實體數 : ").append(chunk.getEntities().length).append(" 固定實體數 : ").append(chunk.getTileEntities().length).append(System.lineSeparator());
            }
            sb.append(System.lineSeparator());
        }

        String output = sb.toString();
        writeFileAsync(sender, fileName, output);
        return true;
    }

    public static void writeFileAsync(CommandSender sender, String fileName, String data) {
        new Thread(() -> {
            try (FileWriter writer = new FileWriter(fileName)) {
                writer.write(data);
                sender.sendMessage(ChatColor.GREEN + "區塊紀錄輸出完成 檔案名稱 : " + fileName);
            } catch (IOException ex) {
                sender.sendMessage(ChatColor.RED + "輸出區塊紀錄時發生例外狀況 : " + ex.getMessage());
            }
        }).start();
    }
}