Minecraftのサーバープラグインを作る(1.5)　～全体送信メッセージ編～

私が最終的に書き上げたプログラム文。

import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;

import static org.bukkit.Bukkit.getServer;

public class fakemsg implements CommandExecutor {

    @Override
    public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {

        if (sender.isOp()) {

            if (args.length == 0) {

                sender.sendMessage("------------------------------\n" +
                        ChatColor.RED + "Error: Please enter a enough arguments." + ChatColor.RESET + "\n" +
                        "Usage: /fakemsg < PlayerName > < MsgBody >\n" +
                        "Description: You can send a fake message using the name of another user.\n" +
                        "------------------------------");
                return true;

            } else {

            if (args[0] != null && !(args[0].isEmpty())) {

                if (args[1] != null && !(args[1].isEmpty())) {

                    String Bcmsg = ("<" + args[0] + "...?> " + args[1]);
                    getServer().broadcastMessage(Bcmsg);
                    sender.sendMessage("------------------------------\n" +
                            ChatColor.GREEN + "Command succeeded: " + Bcmsg + ChatColor.RESET + "\n" +
                            "------------------------------");
                    return true;

                } else {

                    sender.sendMessage("------------------------------\n" +
                            ChatColor.RED + "Error: Please enter a enough arguments." + ChatColor.RESET + "\n" +
                            "Usage: /fakemsg < PlayerName > < MsgBody >" +
                            "Description: You can send a fake message using the name of another user." +
                            "------------------------------\n");
                    return true;

                }

            } else {

                sender.sendMessage("------------------------------\n" +
                        ChatColor.RED + "Error: Please enter a enough arguments." + ChatColor.RESET + "\n" +
                        "Usage: /fakemsg < PlayerName > < MsgBody >" +
                        "Description: You can send a fake message using the name of another user." +
                        "------------------------------\n");
                return true;

            }
        }

        } else {

            sender.sendMessage("------------------------------\n"+
                    ChatColor.RED +"Error: Operator permission is required." + ChatColor.RESET + "\n"+
                    "------------------------------");
            return true;

        }
    }
}