Serilog enricher + nimbus interceptor

gistfile1.cs

public class MessageDataEnrichment
{
    public string SessionId { get; set; }
}
public class MessageDataEnricher : ILogEventEnricher
{
    public MessageDataEnricher()
    {
        CallContext.LogicalSetData(MessageDataEnricher.CallContextIdent, new MessageDataEnrichment());
    }
    public static string CallContextIdent = "MessageDataEnrichment_LCC";
    public void Enrich(LogEvent logEvent, ILogEventPropertyFactory propertyFactory)
    {
        var enrichment = CallContext.LogicalGetData(CallContextIdent) as MessageDataEnrichment;
        if (enrichment != null)
        {
            logEvent.AddOrUpdateProperty(propertyFactory.CreateProperty("SessionId", enrichment.SessionId));
        }
    }
}

public class LoggableMessageDataInterceptor : InboundInterceptor
{
    public string SessionId { get; private set; }

    public LoggableMessageDataInterceptor()
    {
        SessionId = "";
    }

    public void SetSessionId(string sessionId)
    {
        var enrichment = CallContext.LogicalGetData(MessageDataEnricher.CallContextIdent) as MessageDataEnrichment;
        if (enrichment == null)
        {
            enrichment = new MessageDataEnrichment();
            CallContext.LogicalSetData(MessageDataEnricher.CallContextIdent, enrichment);
        }
        enrichment.SessionId = SessionId = sessionId ?? "";
    }

    public async override Task OnRequestHandlerExecuting<TBusRequest, TBusResponse>(IBusRequest<TBusRequest, TBusResponse> busRequest, BrokeredMessage brokeredMessage)
    {
        SetSessionId(brokeredMessage.SessionId);
    }

    public async override Task OnEventHandlerExecuting<TBusEvent>(TBusEvent busEvent, BrokeredMessage brokeredMessage)
    {
        SetSessionId(brokeredMessage.SessionId);
    }

    public async override Task OnCommandHandlerExecuting<TBusCommand>(TBusCommand busCommand, BrokeredMessage brokeredMessage)
    {
        SetSessionId(brokeredMessage.SessionId);
    }
}

This is related to the following discussion: https://groups.google.com/forum/#!topic/serilog/FEvuVBAY5vI