public int GetHashCode(Type eventType)
{
var eventTypeAttribute = EventTypeAttribute.GetEventTypeFrom(eventType);
var attribute = eventType.GetCustomAttribute(typeof(EventTypeAttribute)) as EventTypeAttribute;
var version = attribute?.Version ?? -1;
var hashCode = eventTypeAttribute.GetHashCode() ^ version;
return(hashCode.GetHashCode());
}
public static Type?GetEventType(string name, int version)
=> EventTypes.SingleOrDefault(type =>
{
var typeName = EventTypeAttribute.GetEventTypeFrom(type);
var typeVersion =
Attributes.GetCustomAttributeValue <EventTypeAttribute, int>(type, attribute => attribute.Version);
return(string.Equals(typeName, name, StringComparison.InvariantCultureIgnoreCase) &&
version.Equals(typeVersion));
});
public bool Equals(Type?event1, Type?event2)
{
if (event1 == null && event2 == null)
{
return(true);
}
if (event1 == null || event2 == null)
{
return(false);
}
var eventTypeAttribute1 = EventTypeAttribute.GetEventTypeFrom(event1);
var eventTypeAttribute2 = EventTypeAttribute.GetEventTypeFrom(event1);
var version1 = Attributes.GetCustomAttributeValue <EventTypeAttribute, int>(event1, attribute => attribute.Version);
var version2 = Attributes.GetCustomAttributeValue <EventTypeAttribute, int>(event2, attribute => attribute.Version);
return(eventTypeAttribute1.Equals(eventTypeAttribute2, StringComparison.InvariantCultureIgnoreCase) &&
version1.Equals(version2));
}