/// <summary>
///订阅子节点改变事件
/// </summary>
/// <param name="path">节点path</param>
/// <param name="listener">监听对象</param>
/// <returns>子节点列表</returns>
public List <string> SubscribeChildNodeChanges(string path, IZKChildNodeListener listener)
{
_childListeners.TryGetValue(path, out ConcurrentHashSet <IZKChildNodeListener> listeners);
if (listeners == null)
{
listeners = new ConcurrentHashSet <IZKChildNodeListener>();
_childListeners.TryAdd(path, listeners);
}
listeners.TryAdd(listener);
return(Task.Run(async() => await WatchForChildsAsync(path)).ConfigureAwait(false).GetAwaiter().GetResult());
}
/// <summary>
/// 移除订阅子节点改变事件
/// </summary>
/// <param name="path">节点path</param>
/// <param name="childListener">监听对象</param>
public void UnSubscribeChildChanges(string path, IZKChildNodeListener childListener)
{
_childListeners.TryGetValue(path, out ConcurrentHashSet <IZKChildNodeListener> listeners);
listeners?.TryRemove(childListener);
}
