import net.dmulloy2.types.IPermission; //导入依赖的package包/类
/**
 * Whether or not a given command sender has a given permission.
 * 
 * @param sender Sender to check
 * @param permission Permission to check for
 * @param message Whether or not to send an error
 * @return True if they have it, false if not
 */
protected final boolean hasPermission(CommandSender sender, IPermission permission, boolean message)
{
	Validate.notNull(sender, "sender cannot be null!");

	if (! plugin.getPermissionHandler().hasPermission(sender, permission))
	{
		if (message)
		{
			StringJoiner hoverText = new StringJoiner("\n");
			hoverText.append(FormatUtil.format("&4Permission:"));
			hoverText.append(FormatUtil.format("&r{0}", getPermissionString(permission)));

			ComponentBuilder builder = new ComponentBuilder(FormatUtil.format("&cError: &4You do not have "));
			builder.append(FormatUtil.format("&cpermission")).event(new HoverEvent(Action.SHOW_TEXT, hoverText.toString()));
			builder.append(FormatUtil.format(" &4to perform this command!"));
			sendMessage(sender, builder.create());
		}

		return false;
	}

	return true;
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
/**
 * Gets the full permission string of a given permission.
 * 
 * @param permission Permission
 * @return The full string
 */
protected final String getPermissionString(IPermission permission)
{
	Validate.notNull(permission, "permission cannot be null!");

	return plugin.getPermissionHandler().getPermissionString(permission);
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
protected void checkPermission(CommandSender sender, IPermission permission)
{
	if (! hasPermission(sender, permission, true))
		throw new CommandException(Reason.BREAK);
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
public final boolean hasPermission(CommandSender sender, IPermission permission)
{
	return permission == null || hasPermission(sender, getPermissionString(permission));
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
public final String getPermissionString(IPermission permission)
{
	return plugin.getName().toLowerCase() + "." + permission.getNode().toLowerCase();
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
/**
 * Whether or not a {@link CommandSender} has a permission.
 *
 * @param sender Sender to check.
 * @param permission Permission.
 * @return True if they have the permission, false if not
 */
public final boolean hasPermission(CommandSender sender, IPermission permission)
{
	return permission == null || hasPermission(sender, getPermissionString(permission));
}
 

import net.dmulloy2.types.IPermission; //导入依赖的package包/类
/**
 * Gets the complete permission string for a given {@link IPermission}.
 *
 * @param permission - Permission to get the node for.
 * @return The complete permission string
 */
public final String getPermissionString(IPermission permission)
{
	return prefix + permission.getNode().toLowerCase();
}