public UriSources CombineIfRedirection(StandardizedUri sourceUri, Uri redirectionTarget)
{
var src = GetOrCreateSources(sourceUri);
var stdDestUri = new StandardizedUri(redirectionTarget);
src.RedirectedUri = redirectionTarget;
if (sourceUri.Equals(stdDestUri))
{
// Not a meaningful redirection
return(src);
}
// The request has been redirected,
// so the source and destination pages should be considered equivalent.
// Combine the pages that point to either.
src.Status = SpiderPageStatus.Redirected;
var dest = GetOrCreateSources(stdDestUri);
var combinedLinks = src.CallingLinks.Union(dest.CallingLinks).ToHashSet();
src.CallingLinks = combinedLinks;
dest.CallingLinks = combinedLinks;
return(dest);
}
