/**
* Removes the entire roster of a given user. This is necessary when a user account is being
* deleted from the server.
*
* @param user the user.
*/
public void deleteRoster(JID user) {
try {
String username = user.getNode();
// Get the roster of the deleted user
Roster roster = (Roster) CacheManager.getCache("username2roster").get(username);
if (roster == null) {
// Not in cache so load a new one:
roster = new Roster(username);
}
// Remove each roster item from the user's roster
for (RosterItem item : roster.getRosterItems()) {
try {
roster.deleteRosterItem(item.getJid(), false);
} catch (SharedGroupException e) {
// Do nothing. We shouldn't have this exception since we disabled the checkings
}
}
// Remove the cached roster from memory
CacheManager.getCache("username2roster").remove(username);
// Get the rosters that have a reference to the deleted user
RosterItemProvider rosteItemProvider = RosterItemProvider.getInstance();
Iterator<String> usernames = rosteItemProvider.getUsernames(user.toBareJID());
while (usernames.hasNext()) {
username = usernames.next();
// Get the roster that has a reference to the deleted user
roster = (Roster) CacheManager.getCache("username2roster").get(username);
if (roster == null) {
// Not in cache so load a new one:
roster = new Roster(username);
}
// Remove the deleted user reference from this roster
try {
roster.deleteRosterItem(user, false);
} catch (SharedGroupException e) {
// Do nothing. We shouldn't have this exception since we disabled the checkings
}
}
} catch (UnsupportedOperationException e) {
// Do nothing
}
}
