public static async Task <SyndicationFeed> LoadAsync(XmlReader reader, Rss20FeedFormatter Rssformatter, Atom10FeedFormatter Atomformatter, CancellationToken ct)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
XmlReaderWrapper wrappedReader = XmlReaderWrapper.CreateFromReader(reader);
Atom10FeedFormatter atomSerializer = Atomformatter;
if (atomSerializer.CanRead(wrappedReader))
{
await atomSerializer.ReadFromAsync(wrappedReader, new CancellationToken());
return(atomSerializer.Feed);
}
Rss20FeedFormatter rssSerializer = Rssformatter;
if (rssSerializer.CanRead(wrappedReader))
{
await rssSerializer.ReadFromAsync(wrappedReader, new CancellationToken());
return(rssSerializer.Feed);
}
throw new XmlException(string.Format(SR.UnknownFeedXml, wrappedReader.LocalName, wrappedReader.NamespaceURI));
}
public async Task<Update> CheckForUpdatesAsync(string updateUrl, UpdateFilter updateFilter)
{
Debug.Assert(!String.IsNullOrWhiteSpace(updateUrl));
var reader = XmlReader.Create(updateUrl);
var formatter = new Atom10FeedFormatter();
await formatter.ReadFromAsync(reader);
return (from i in formatter.Feed.Items
let u = UpdateHelper.FromSyndicationItem(i)
where u.Version > Assembly.GetExecutingAssembly().GetName().Version
&& ((int)updateFilter & (int)u.ReleaseStatus) != 0
orderby u.LastUpdatedTime descending
select u).FirstOrDefault();
}
public static async Task <TSyndicationFeed> LoadAsync <TSyndicationFeed>(XmlReader reader, CancellationToken ct) where TSyndicationFeed : SyndicationFeed, new()
{
Atom10FeedFormatter <TSyndicationFeed> atomSerializer = new Atom10FeedFormatter <TSyndicationFeed>();
if (atomSerializer.CanRead(reader))
{
await atomSerializer.ReadFromAsync(reader, ct).ConfigureAwait(false);
return(atomSerializer.Feed as TSyndicationFeed);
}
Rss20FeedFormatter <TSyndicationFeed> rssSerializer = new Rss20FeedFormatter <TSyndicationFeed>();
if (rssSerializer.CanRead(reader))
{
await rssSerializer.ReadFromAsync(reader, ct).ConfigureAwait(false);
return(rssSerializer.Feed as TSyndicationFeed);
}
throw new XmlException(SR.Format(SR.UnknownFeedXml, reader.LocalName, reader.NamespaceURI));
}
