public bool AddSubscription <TEvent, TEventHandler>()
where TEvent : IEventBase
where TEventHandler : IEventHandler <TEvent>
{
var eventKey = GetEventKey <TEvent>();
var handlerType = typeof(TEventHandler);
if (Wrapper.Database.HashExists(EventsCacheKey, eventKey))
{
var handlers = Wrapper.Unwrap <HashSet <Type> >(Wrapper.Database.HashGet(EventsCacheKey, eventKey));
if (handlers.Contains(handlerType))
{
return(false);
}
handlers.Add(handlerType);
Wrapper.Database.HashSet(EventsCacheKey, eventKey, Wrapper.Wrap(handlers));
return(true);
}
else
{
return(Wrapper.Database.HashSet(EventsCacheKey, eventKey, Wrapper.Wrap(new HashSet <Type> {
handlerType
}), StackExchange.Redis.When.NotExists));
}
}
public bool AddSubscription <TEvent, TEventHandler>()
where TEvent : class, IEventBase
where TEventHandler : IEventHandler <TEvent>
{
var eventKey = GetEventKey <TEvent>();
var handlerType = typeof(TEventHandler);
using (var redLock = RedisManager.GetRedLockClient($"eventStore_{eventKey}", 10 * 1000 / RedisManager.RedisConfiguration.LockRetryDelay))
{
if (redLock.TryLock())
{
if (_wrapper.Database.HashExists(_eventsCacheKey, eventKey))
{
var handlers = _wrapper.Unwrap <HashSet <Type> >(_wrapper.Database.HashGet(_eventsCacheKey, eventKey));
if (handlers.Contains(handlerType))
{
return(false);
}
handlers.Add(handlerType);
_wrapper.Database.HashSet(_eventsCacheKey, eventKey, _wrapper.Wrap(handlers));
return(true);
}
return(_wrapper.Database.HashSet(_eventsCacheKey, eventKey, _wrapper.Wrap(new HashSet <Type> {
handlerType
}), StackExchange.Redis.When.NotExists));
}
}
return(false);
}