/// <summary>
        /// 添加Zookeeper配置
        /// </summary>
        /// <param name="builder"></param>
        /// <param name="zookeeperOptions"></param>
        public static IConfigurationBuilder AddZookeeper(this IConfigurationBuilder builder, ZookeeperOptions zookeeperOptions)
        {
            ZookeeperConfigurationSource zookeeperConfigurationSource = new ZookeeperConfigurationSource(zookeeperOptions);

            builder.Add(zookeeperConfigurationSource);
            return(builder);
        }
        public ZookeeperConfigurationProvider(ZookeeperConfigurationSource zookeeperConfigurationSource)
        {
            this.ZookeeperConfigurationSource  = zookeeperConfigurationSource;
            this.zookeeperConfigurationWatcher = new ZookeeperConfigurationWatcher(this);

            if (zookeeperConfigurationSource.ZookeeperOptions.ReloadOnChange)
            {
                _changeTokenRegistration = ChangeToken.OnChange(
                    () => GetReloadToken(),
                    () =>
                {
                    Thread.Sleep(zookeeperConfigurationSource.ZookeeperOptions.ReloadDelay);
                    Load();
                });
            }
        }