protected IEnumerable <Uri> GetTransformedUrls()
{
return(_urls.Cast <string>().Select(s =>
{
var url = s;
if (string.IsNullOrEmpty(url))
{
return null;
}
if (url.Contains("$("))
{
url = GlobalVariables.Aggregate(url, (current, variable) => current.Replace("$(" + variable.Key + ")", variable.Value));
}
if (!url.StartsWith("http://") && !url.StartsWith("https://"))
{
url = "http://" + url;
}
if (Uri.IsWellFormedUriString(url, UriKind.Absolute))
{
return new Uri(url, UriKind.Absolute);
}
if (Uri.IsWellFormedUriString(url, UriKind.Relative))
{
return new Uri(url, UriKind.Relative);
}
return null;
}).Where(s => s != null));
}