pubSubData.callback.operationFinished(pubSubData.context, null);
break;
case CLIENT_ALREADY_SUBSCRIBED:
// For Subscribe requests, the server says that the client is
// already subscribed to it.
pubSubData.callback.operationFailed(pubSubData.context, new ClientAlreadySubscribedException(
"Client is already subscribed for topic: " + pubSubData.topic.toStringUtf8() + ", subscriberId: "
+ pubSubData.subscriberId.toStringUtf8()));
break;
case SERVICE_DOWN:
// Response was service down failure so just invoke the callback's