/// <summary>
/// 屏蔽
/// </summary>
/// <param name="serviceName"></param>
/// <param name="failedCallInvoker"></param>
public void Revoke(string serviceName, ChannelWrapper channelWrapper)
{
lock (_lock)
{
if (channelWrapper == null)
{
return;
}
// channels
if (_channelWrappers.TryGetValue(serviceName, out List <ChannelWrapper> channels) &&
channels.Any(oo => oo == channelWrapper))
{
channels.Remove(channelWrapper);
_channelWrappers.AddOrUpdate(serviceName, channels, (k, v) => channels);
}
// add black
ServiceBlackPolicy.Add(serviceName, channelWrapper.Target);
channelWrapper.ShutdownAsync();
// reinit callinvoker
if (channels.Count <= 0)
{
GetSetChannels(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 <ChannelWrapper> GetSetChannels(string serviceName, bool filterBlack = true)
{
if (!_discoveries.TryGetValue(serviceName, out IEndpointDiscovery discovery))
{
return(null);
}
_channelWrappers.TryGetValue(serviceName, out List <ChannelWrapper> channelWrappers);
channelWrappers ??= new List <ChannelWrapper>();
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）
_channelWrappers.TryGetValue(serviceName, out channelWrappers);
return(channelWrappers);
}
foreach (var target in targets)
{
if (channelWrappers.Any(oo => oo.Target == target.target))
{
continue;
}
var channel = GrpcChannel.ForAddress($"https://{target.target}", Constants.DefaultChannelOptions);
var channelWrapper = new ChannelWrapper(target.serviceId, channel);
channelWrappers.Add(channelWrapper);
}
// 移除已经销毁的callInvokers
var destroyChannels = channelWrappers.Where(oo => !targets.Any(target => target.target == oo.Target)).ToList();
foreach (var channel in destroyChannels)
{
channelWrappers.Remove(channel);
channel.ShutdownAsync();
}
_channelWrappers.AddOrUpdate(serviceName, channelWrappers, (key, value) => channelWrappers);
return(channelWrappers);
}