/// <summary>
/// Renders the timing details of the Nested Logical Context item and appends it to the specified <see cref="StringBuilder" />.
/// </summary>
/// <param name="builder">The <see cref="StringBuilder"/> to append the rendered data to.</param>
/// <param name="logEvent">Logging event.</param>
protected override void Append(StringBuilder builder, LogEventInfo logEvent)
{
DateTime scopeBegin = CurrentScope ? NestedDiagnosticsLogicalContext.PeekTopScopeBeginTime() : NestedDiagnosticsLogicalContext.PeekBottomScopeBeginTime();
if (scopeBegin != DateTime.MinValue)
{
if (ScopeBeginTime)
{
var formatProvider = GetFormatProvider(logEvent, null);
scopeBegin = Time.TimeSource.Current.FromSystemTime(scopeBegin);
builder.Append(scopeBegin.ToString(Format, formatProvider));
}
else
{
TimeSpan duration = scopeBegin != DateTime.MinValue ? DateTime.UtcNow - scopeBegin : TimeSpan.Zero;
if (duration < TimeSpan.Zero)
{
duration = TimeSpan.Zero;
}
#if !NET3_5
var formatProvider = GetFormatProvider(logEvent, null);
builder.Append(duration.ToString(Format, formatProvider));
#else
builder.Append(duration.ToString());
#endif
}
}
}