@Override
public void localUserPresenceChanged(LocalUserChatRoomPresenceChangeEvent evt) {
if (recentQuery == null) return;
ComparableEvtObj srcContact = null;
synchronized (recentMessages) {
for (ComparableEvtObj msg : recentMessages) {
if (msg.getRoom() != null && msg.getRoom().equals(evt.getChatRoom())) {
srcContact = msg;
break;
}
}
}
if (srcContact == null) return;
String eventType = evt.getEventType();
if (LocalUserChatRoomPresenceChangeEvent.LOCAL_USER_JOINED.equals(eventType)) {
recentQuery.updateContactStatus(srcContact, ChatRoomPresenceStatus.CHAT_ROOM_ONLINE);
} else if ((LocalUserChatRoomPresenceChangeEvent.LOCAL_USER_LEFT.equals(eventType)
|| LocalUserChatRoomPresenceChangeEvent.LOCAL_USER_KICKED.equals(eventType)
|| LocalUserChatRoomPresenceChangeEvent.LOCAL_USER_DROPPED.equals(eventType))) {
recentQuery.updateContactStatus(srcContact, ChatRoomPresenceStatus.CHAT_ROOM_OFFLINE);
}
}
/**
* Permanently removes locally stored message history for the chatroom, remove any recent contacts
* if any.
*/
public void eraseLocallyStoredHistory(ChatRoom room) {
ComparableEvtObj toRemove = null;
synchronized (recentMessages) {
for (ComparableEvtObj msg : recentMessages) {
if (msg.getRoom() != null && msg.getRoom().equals(room)) {
toRemove = msg;
break;
}
}
if (toRemove == null) return;
recentMessages.remove(toRemove);
}
if (recentQuery != null) recentQuery.fireContactRemoved(toRemove);
}
/**
* Tries to match the event object to already existing ComparableEvtObj in the supplied list.
*
* @param obj the object that we will try to match.
* @param list the list we will search in.
* @return the found ComparableEvtObj
*/
private static ComparableEvtObj findRecentMessage(EventObject obj, List<ComparableEvtObj> list) {
Contact contact = null;
ChatRoom chatRoom = null;
if (obj instanceof MessageDeliveredEvent) {
contact = ((MessageDeliveredEvent) obj).getDestinationContact();
} else if (obj instanceof MessageReceivedEvent) {
contact = ((MessageReceivedEvent) obj).getSourceContact();
} else if (obj instanceof ChatRoomMessageDeliveredEvent) {
chatRoom = ((ChatRoomMessageDeliveredEvent) obj).getSourceChatRoom();
} else if (obj instanceof ChatRoomMessageReceivedEvent) {
chatRoom = ((ChatRoomMessageReceivedEvent) obj).getSourceChatRoom();
}
for (ComparableEvtObj evt : list) {
if ((contact != null && contact.equals(evt.getContact()))
|| (chatRoom != null && chatRoom.equals(evt.getRoom()))) return evt;
}
return null;
}