public Message createMessage$($Message message, Optional account$)\{$

LOGGER.debug$("$Creating message: $\{\}",$ message$)$;

$//$ Ensure that the account exists

if $(!$account.isPresent$())\{$

LOGGER.error$("$Account must exist when posting a new message"$)$;

throw new IllegalArgumentException$("$Account must exist when posting a new message"$)$;

$\}$

$//$ Validate the message

validateMessage$($message$)$;

$//$ Check account permission

checkAccountPermission$($account$.$get$(),$ message.getPosted$\_$by$())$;

$//$ Insert the message into the database

Message createdMessage $=$ messageDAO.insert$($message$)$;

LOGGER.info$("$Created message: $\{\}",$ createdMessage$)$;

return createdMessage;

$\}$