class FabricTopicAdmin implements IEventTopic {

    @Override
    public TopicInfo state(String topic, String channelName) throws BrokerException {
        ParamCheckUtils.validateTopicName(topic);
        validateChannelName(channelName);

        return fabricDelegate.getFabricMap().get(channelName).getTopicInfo(topic);
    }

    public  FabricTopicAdmin(FabricDelegate fabricDelegate);

}