private string GetValue(System.Diagnostics.Activity activity)
{
switch (Property)
{
case ActivityTraceProperty.Id: return(activity.Id);
case ActivityTraceProperty.SpanId: return(activity.GetSpanId());
case ActivityTraceProperty.TraceId: return(activity.GetTraceId());
case ActivityTraceProperty.OperationName: return(activity.OperationName);
case ActivityTraceProperty.StartTimeUtc: return(activity.StartTimeUtc > DateTime.MinValue ? activity.StartTimeUtc.ToString(Format, Culture) : string.Empty);
case ActivityTraceProperty.Duration: return(GetDuration(activity));
case ActivityTraceProperty.ParentId: return(activity.GetParentId());
case ActivityTraceProperty.TraceState: return(activity.TraceStateString);
case ActivityTraceProperty.TraceFlags: return(activity.ActivityTraceFlags == System.Diagnostics.ActivityTraceFlags.None && string.IsNullOrEmpty(Format) ? string.Empty : activity.ActivityTraceFlags.ToString(Format));
case ActivityTraceProperty.Baggage: return(GetCollectionItem(Item, activity.Baggage));
case ActivityTraceProperty.Tags: return(GetCollectionItem(Item, activity.TagObjects));
case ActivityTraceProperty.CustomProperty: return(string.IsNullOrEmpty(Item) ? string.Empty : (activity.GetCustomProperty(Item)?.ToString() ?? activity.Parent?.GetCustomProperty(Item)?.ToString() ?? string.Empty));
case ActivityTraceProperty.SourceName: return(activity.Source?.Name);
case ActivityTraceProperty.SourceVersion: return(activity.Source?.Version);
case ActivityTraceProperty.ActivityKind: return(ConvertToString(activity.Kind));
default: return(string.Empty);
}
}