private QBGroupChat createChatIfNotExist(QBDialog dialog) throws QBResponseException {
boolean notNull = Utils.validateNotNull(groupChatManager);
if (!notNull) {
ErrorUtils.logError(TAG, " groupChatManager is NULL");
throw new QBResponseException(context.getString(R.string.dlg_fail_create_chat));
}
groupChat = groupChatManager.getGroupChat(dialog.getRoomJid());
if (groupChat == null) {
groupChat = groupChatManager.createGroupChat(dialog.getRoomJid());
groupChat.addMessageListener(roomChatMessageListener);
}
return groupChat;
}
