public static void AppendMetadata(this IEventSource source, IEvent @event)
{
if (source == null)
return;
var sourceMetadata = new Dictionary<string, object>();
var currentSource = source;
while (currentSource != null) {
var metadata = currentSource.Metadata;
if (metadata != null) {
foreach (var pair in metadata) {
sourceMetadata[pair.Key] = pair.Value;
}
}
currentSource = currentSource.ParentSource;
}
foreach (var pair in sourceMetadata) {
@event.SetData(pair.Key, pair.Value);
}
}
