code: private void purgeSmsOlderThan(final Date date) {
  		
  			logger.debug("Starting purge of SMS table with parameter : \n" + " - date : " + date);
  		
  		final int nbSmsDeleted = daoService.deleteSmsOlderThan(date);
  		
  			logger.debug("End purge of SMS table, result : \n" + 
  				     " - number of sms deleted : " + nbSmsDeleted);
  	}
docs: Purge the Sms in db with date older than the specified date.
  @param date