/// <summary>
/// 屏蔽
/// </summary>
/// <param name="serviceName"></param>
/// <param name="failedCallInvoker"></param>
public void Revoke(string serviceName, ServerCallInvoker failedCallInvoker)
{
lock (_lock)
{
// invokers
var failedChannel = failedCallInvoker.Channel;
if (!_invokers.TryGetValue(serviceName, out List <ServerCallInvoker> callInvokers) ||
callInvokers.All(x => !ReferenceEquals(failedChannel, x.Channel)))
{
return;
}
callInvokers.RemoveAt(callInvokers.FindIndex(x => ReferenceEquals(failedChannel, x.Channel)));
_invokers.AddOrUpdate(serviceName, callInvokers, (key, value) => callInvokers);
// channels
if (_channels.TryGetValue(failedChannel.Target, out Channel channel) &&
ReferenceEquals(channel, failedChannel))
{
_channels.TryRemove(failedChannel.Target, out failedChannel);
}
// add black
ServiceBlackPlicy.Add(serviceName, failedChannel.Target);
failedChannel.ShutdownAsync();
// if not exist invoker， call init method
if (callInvokers.Count <= 0)
{
SetCallInvokers(serviceName, false);
}
}
}
/// <summary>
/// 初始化callinvoker
/// </summary>
/// <param name="serviceName"></param>
/// <param name="filterBlack">过滤黑名单 default true</param>
/// <returns></returns>
private List <ServerCallInvoker> SetCallInvokers(string serviceName, bool filterBlack = true)
{
if (!_discoveries.TryGetValue(serviceName, out IEndpointDiscovery discovery))
{
return(null);
}
_invokers.TryGetValue(serviceName, out List <ServerCallInvoker> callInvokers);
callInvokers = callInvokers ?? new List <ServerCallInvoker>();
var targets = discovery.FindServiceEndpoints(filterBlack);
if ((targets?.Count ?? 0) <= 0)
{
// 如果consul 取不到 暂时直接使用本地缓存的连接（注册中心数据清空的情况--异常）
_invokers.TryGetValue(serviceName, out callInvokers);
return(callInvokers);
}
var channelOptions = new List <ChannelOption>()
{
new ChannelOption(ChannelOptions.MaxReceiveMessageLength, int.MaxValue),
new ChannelOption(ChannelOptions.MaxSendMessageLength, int.MaxValue),
};
foreach (var target in targets)
{
if (!_channels.TryGetValue(target, out Channel channel))
{
channel = new Channel(target, ChannelCredentials.Insecure, channelOptions);
_channels.AddOrUpdate(target, channel, (key, value) => channel);
}
if (callInvokers.Any(x => ReferenceEquals(x.Channel, channel)))
{
continue;
}
var callInvoker = new ServerCallInvoker(channel);
callInvokers.Add(callInvoker);
}
// 移除已经销毁的callInvokers
var destroyInvokers = callInvokers.Where(oo => !targets.Contains(oo.Channel.Target)).ToList();
foreach (var invoker in destroyInvokers)
{
_channels.TryRemove(invoker.Channel.Target, out Channel channel);
callInvokers.Remove(invoker);
}
_invokers.AddOrUpdate(serviceName, callInvokers, (key, value) => callInvokers);
return(callInvokers);
}
/// <summary>
/// SetCallInvokers
/// </summary>
/// <param name="serviceName"></param>
/// <param name="filterBlack">过滤黑名单 default true</param>
/// <returns></returns>
private List <ServerCallInvoker> GetSetCallInvokers(string serviceName, bool filterBlack = true)
{
if (!_discoveries.TryGetValue(serviceName, out IEndpointDiscovery discovery))
{
return(null);
}
_invokers.TryGetValue(serviceName, out List <ServerCallInvoker> callInvokers);
callInvokers = callInvokers ?? new List <ServerCallInvoker>();
var targets = discovery.FindServiceEndpoints(filterBlack);
foreach (var target in targets)
{
if (!_channels.TryGetValue(target, out Channel channel))
{
channel = new Channel(target, ChannelCredentials.Insecure, Constants.DefaultChannelOptions);
_channels.AddOrUpdate(target, channel, (key, value) => channel);
}
if (callInvokers.Any(x => ReferenceEquals(x.Channel, channel)))
{
continue;
}
var callInvoker = new ServerCallInvoker(channel);
callInvokers.Add(callInvoker);
}
// 移除已经销毁的callInvokers
var destroyInvokers = callInvokers.Where(oo => !targets.Contains(oo.Channel.Target)).ToList();
foreach (var invoker in destroyInvokers)
{
_channels.TryRemove(invoker.Channel.Target, out Channel channel);
callInvokers.Remove(invoker);
}
_invokers.AddOrUpdate(serviceName, callInvokers, (key, value) => callInvokers);
return(callInvokers);
}
