private static LayoutRenderer ApplyWrappers(ConfigurationItemFactory configurationItemFactory, LayoutRenderer lr, List<LayoutRenderer> orderedWrappers)
{
for (var i = orderedWrappers.Count - 1; i >= 0; --i)
{
var newRenderer = (WrapperLayoutRendererBase) orderedWrappers[i];
InternalLogger.Trace("Wrapping {0} with {1}", lr.GetType().Name, newRenderer.GetType().Name);
if (CanBeConvertedToLiteral(lr))
{
lr = ConvertToLiteral(lr);
}
newRenderer.Inner = new SimpleLayout(new[] {lr}, string.Empty, configurationItemFactory);
lr = newRenderer;
}
return lr;
}
internal SimpleLayout(LayoutRenderer[] renderers, string text, ConfigurationItemFactory configurationItemFactory)
{
this.configurationItemFactory = configurationItemFactory;
SetRenderers(renderers, text);
}
internal void SetRenderers(LayoutRenderer[] renderers, string text)
{
Renderers = new ReadOnlyCollection<LayoutRenderer>(renderers);
if (Renderers.Count == 1 && Renderers[0] is LiteralLayoutRenderer)
{
fixedText = ((LiteralLayoutRenderer) Renderers[0]).Text;
}
else
{
fixedText = null;
}
layoutText = text;
}
private static LayoutRenderer ConvertToLiteral(LayoutRenderer renderer)
{
return new LiteralLayoutRenderer(renderer.Render(LogEventInfo.CreateNullEvent()));
}
private static bool CanBeConvertedToLiteral(LayoutRenderer lr)
{
foreach (var renderable in ObjectGraphScanner.FindReachableObjects<IRenderable>(lr))
{
if (renderable.GetType() == typeof (SimpleLayout))
{
continue;
}
if (!renderable.GetType().IsDefined(typeof (AppDomainFixedOutputAttribute), false))
{
return false;
}
}
return true;
}
