/// <summary>
/// 设置某个路径的值
/// </summary>
/// <param name="path">路径</param>
/// <param name="value">值</param>
public void SetData(string path, string value)
{
ActionRetryHelper.Retry(() =>
{
Stat stat = ZooKeeper.Exists(path, false);
byte[] data = value == null ? null : value.GetBytes();
if (stat == null)
{
ZooKeeper.Create(path, data, Ids.OPEN_ACL_UNSAFE, CreateMode.Persistent);
}
else
{
ZooKeeper.SetData(path, data, stat.Version);
}
}, 3, new TimeSpan(10), () =>
{
//exceptionAction
}, (ex) =>
{
//errorHandle
LogManager.GetLogger().Error(string.Format("DisconfClient.ZooKeeperClient.SetData(path={0},value={1}),ex:{2}", path, value, ex));
}, () =>
{
//retryExceptionAction
LogManager.GetLogger().Error(string.Format("DisconfClient.ZooKeeperClient.SetData(path={0},value={1}),error", path, value));
});
}
/// <summary>
/// 检查某个路径在Zookeeper中是否已存在
/// </summary>
/// <param name="path">路径</param>
/// <returns></returns>
public bool Exists(string path)
{
return(ActionRetryHelper.Retry <bool>(() =>
{
Stat stat = ZooKeeper.Exists(path, false);
return stat != null;
}, 3, new TimeSpan(10), () =>
{
}, (ex) =>
{
//errorHandle
LogManager.GetLogger()
.Error(string.Format("DisconfClient.ZooKeeperClient.Exists(path={0}),ex:{1}", path, ex));
}));
}
/// <summary>
/// 重新连接ZooKeeper
/// </summary>
public void ReConnect()
{
string host = _webApi.GetZooKeeperHost();
ActionRetryHelper.Retry(() =>
{
LogManager.GetLogger().Info(string.Format("DisconfClient.ConnectionWatcher.Connect,host:{0},Start ReConnect.", host));
Close();
Connect();
NodeWatcher.ReRegisterAllWatcher();
}, 3, new TimeSpan(10), () =>
{
//exceptionAction
}, (ex) =>
{
//errorHandle
LogManager.GetLogger().Error(string.Format("DisconfClient.ConnectionWatcher.Connect,host:{0},ReConnect,{1}.", host, ex));
}, () =>
{
//retryExceptionAction
});
}
/// <summary>
/// 创建一个路径节点
/// </summary>
/// <param name="path">路径</param>
/// <param name="value">值</param>
/// <param name="createMode">创建模式</param>
/// <returns></returns>
public string CreateNode(string path, string value, CreateMode createMode)
{
return(ActionRetryHelper.Retry <string>(() =>
{
Stat stat = ZooKeeper.Exists(path, false);
byte[] data = value == null ? null : value.GetBytes();
if (stat == null)
{
return ZooKeeper.Create(path, data, Ids.OPEN_ACL_UNSAFE, createMode);
}
else
{
ZooKeeper.SetData(path, data, -1);
}
return path;
}, 3, new TimeSpan(10), () =>
{
}, (ex) =>
{
//errorHandle
LogManager.GetLogger()
.Error(string.Format("DisconfClient.ZooKeeperClient.CreateNode(path={0},value={1},createMode={2}),ex:{3}", path, value, createMode, ex));
}));
}
