/**
  * Get message ids for a given queue
  *
  * @param queueName name of queue
  * @return set of message ids
  * @throws AndesException
  */
 @Override
 public TreeSet<Long> getMessageIds(String queueName) throws AndesException {
   try {
     return wrappedAndesContextStoreInstance.getMessageIds(queueName);
   } catch (AndesStoreUnavailableException exception) {
     notifyFailures(exception);
     throw exception;
   }
 }