public EventBusSubscription <T> Subscribe <T>() where T : IntegrationEvent
{
lock (subscriptions)
{
if (!subscriptions.TryGetValue(typeof(T), out var list))
{
list = new List <EventBusSubscription>();
subscriptions.Add(typeof(T), list);
}
var channel = Channel.CreateUnbounded <T>();
var subscription = new EventBusSubscription <T>(channel);
subscription2Channel.Add(subscription, channel);
list.Add(subscription);
logger.LogInformation($"Added subscription to {typeof(T).Name}");
return(subscription);
}
}
public bool TryUnsubscribe <T>(EventBusSubscription <T> subscription) where T : IntegrationEvent
{
if (subscription == null)
{
return(false);
}
lock (subscriptions)
{
if (!subscriptions.TryGetValue(typeof(T), out var list))
{
return(false);
}
var result = list.Remove(subscription);
subscription2Channel.Remove(subscription);
if (result)
{
logger.LogInformation($"Removed subscription to {typeof(T).Name}");
}
return(result);
}
}