@Override
	public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
		if(args.length == 0) {
			return false;
		}
		if(args[0].equalsIgnoreCase("create")) {
			doCreateCommand(sender, cmd, label, args);
		} else if(args[0].equalsIgnoreCase("list")) {
			doListCommand(sender, cmd, label, args);
		} else if(args[0].equalsIgnoreCase("get")) {
			doGetCommand(sender, cmd, label, args);
		} else if(args[0].equalsIgnoreCase("sign")) {
			doSignCommand(sender, cmd, label, args);
		} else if(args[0].equalsIgnoreCase("close")) {
			doCloseCommand(sender, cmd, label, args);
		} else {
			return false;
		}
		return true;
	}