private void removeTopicListener(String topic, Object inner) {
synchronized (messageDispatcher) {
MessageDispatcher dispatcher = messageDispatcher.get(topic);
if (dispatcher != null) {
dispatcher.removeListener(inner);
if (!dispatcher.isListened()) {
messageDispatcher.remove(topic);
try {
dispatcher.getConsumer().close();
} catch (ConnectorException e) {
}
}
}
}
}
