/// <summary>
/// 获取当前服务器节点
/// </summary>
/// <returns></returns>
public List <CodisProxyInfo> GetPools()
{
if (pools == null || _zkReconnPoolState == 1)
{
CodisProxyInfo itemCodisProxy = null;
var allPools = new List <CodisProxyInfo>();
var childPath = _zk.client.GetChildrenAsync(Path).Result;
foreach (var itemPath in childPath)
{
var iteData = _zk.client.GetDataAsync($"{Path}/{itemPath}").Result;
itemCodisProxy = JsonToObject <CodisProxyInfo>(Encoding.UTF8.GetString(iteData.ToArray()));
itemCodisProxy.Node = itemPath;
allPools.Add(itemCodisProxy);
}
pools = allPools;
//如果是断网重连，激活添加节点委托事件
if (_zkReconnPoolState == 1)
{
_zkReconnPoolState = 0;
if (addNodeDel != null)
{
addNodeDel(pools);
}
}
}
return(pools);
}
/// <summary>
/// 监听实现
/// </summary>
public override void ProcessWatched()
{
//调用基类的实现
base.ProcessWatched();
//订阅连接状态变更
_zk.SubscribeStatusChange(async(ct, args) =>
{
if (args.State == Watcher.Event.KeeperState.SyncConnected)
{
//检查是否存在根节点，不存在则写入
if (await _zk.client.ExistsAsync("/jodis") == false)
{
try
{
_ = _zk.client.CreateAsync("/jodis", null, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT);
_log.InfoFormat($"创建根节点:/jodis");
}
catch (Exception ex)
{
_log.ErrorFormat($"创建根节点-异常:{0}", ex.Message.ToString());
}
}
_ = this.GetPools();
_log.InfoFormat($"初始化节点开始");
_log.InfoFormat($"online上线节点:");
pools.FindAll(m => m.State == "online").Select(m => m.Addr).Distinct().ToList().ForEach(n =>
{
_log.InfoFormat($"{n}");
});
_log.InfoFormat($"初始化节点完成");
//_log.InfoFormat($"offline下线节点:");
//pools.FindAll(m => m.State == "offline").Select(m => m.Addr).Distinct().ToList().ForEach(n =>
//{
// _log.InfoFormat($"{n}");
//});
}
//return CompletedTask;
});
//订阅节点子节点变更
_zk.SubscribeChildrenChange(Path, (ct, args) =>
{
CodisProxyInfo poolCodisProxy = null;
CodisProxyInfo itemCodisProxy = null;
IEnumerable <string> childrenList = _zk.client.GetChildrenAsync(Path).Result;
lock (pools)
{
//设置为初始状态
pools.ForEach(m => m.Flag = 0);
foreach (var itemPath in childrenList)
{
var iteData = _zk.client.GetDataAsync($"{Path}/{itemPath}").Result;
itemCodisProxy = JsonToObject <CodisProxyInfo>(Encoding.UTF8.GetString(iteData.ToArray()));
itemCodisProxy.Node = itemPath;
poolCodisProxy = pools.FirstOrDefault(m => m.Node == itemCodisProxy.Node);
if (poolCodisProxy == null)
{
itemCodisProxy.Flag = 1;
pools.Add(itemCodisProxy);
}
else if (itemCodisProxy.Addr.Equals(poolCodisProxy.Addr) && itemCodisProxy.State.Equals(poolCodisProxy.State))
{
poolCodisProxy.Flag = 3;
}
else
{
poolCodisProxy.Flag = 2;
poolCodisProxy.Addr = itemCodisProxy.Addr;
poolCodisProxy.State = itemCodisProxy.State;
}
}
var deletePools = pools.FindAll(m => m.Flag == 0);
if (deletePools.Count > 0)
{
var deletedPools = new List <CodisProxyInfo>();
deletePools.ForEach(n =>
{
//_log.InfoFormat($"删除节点:{n.Node}={n.Addr}-{n.State}");
deletedPools.Add(n);
pools.Remove(n);
});
if (deleteNodeDel != null)
{
deleteNodeDel(deletedPools);
}
}
var addPools = pools.FindAll(m => m.Flag == 1);
if (addPools.Count > 0)
{
if (addNodeDel != null)
{
addNodeDel(addPools);
}
//addPools.ForEach(n =>
//{
// _log.InfoFormat($"新增节点:{n.Node}={n.Addr}-{n.State}");
//});
}
//pools.FindAll(m => m.Flag == 2).ForEach(n =>
//{
// _log.InfoFormat($"编辑节点:{n.Node}={n.Addr}-{n.State}");
//});
}
return(CompletedTask);
});
}