/**
* Sets the chosen subscription mode on our connection.
*/
private void setupSubscriptionMode() {
this.roster = this.connection.getRoster();
SubscriptionMode mode = SubscriptionMode.valueOf(this.desc.getSubscriptionMode());
switch (mode) {
case accept_all : LOGGER.info("Accepting all subscription requests");
break;
case reject_all : LOGGER.info("Rejecting all subscription requests");
break;