@SuppressWarnings("unchecked")
private <T> void addTopicListener(
String topic, Object inner, ByteArrayConverter<T> converter, TypedListener<T> listener)
throws ConnectorException {
synchronized (messageDispatcher) {
MessageDispatcher<T> dispatcher = messageDispatcher.get(topic);
if (dispatcher == null) {
ConnectorSession session = connection.createSession();
ConnectorConsumer consumer = session.createConsumer(session.createTopic(topic));
messageDispatcher.put(topic, dispatcher = new MessageDispatcher<T>(consumer, converter));
}
dispatcher.addListener(inner, listener);
}
}
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) {
}
}
}
}
}