/**
* Deletes a user from all the groups where he/she belongs. The most probable cause for this
* request is that the user has been deleted from the system.
*
* <p>TODO: remove this method and use events isntead.
*
* @param user the deleted user from the system.
*/
public void deleteUser(User user) {
JID userJID = XMPPServer.getInstance().createJID(user.getUsername(), null);
for (Group group : getGroups(userJID)) {
if (group.getAdmins().contains(userJID)) {
group.getAdmins().remove(userJID);
} else {
group.getMembers().remove(userJID);
}
}
}
/**
* Deletes a group from the system.
*
* @param group the group to delete.
*/
public void deleteGroup(Group group) {
// Fire event.
GroupEventDispatcher.dispatchEvent(
group, GroupEventDispatcher.EventType.group_deleting, Collections.emptyMap());
// Delete the group.
provider.deleteGroup(group.getName());
// Expire all relevant caches.
groupCache.remove(group.getName());
}