public static Image GetImage(FeedSource source, INewsFeed feed)
{
if (feed == null || source == null)
{
return(null);
}
if (!source.FeedHasFavicon(feed))
{
return(null);
}
var id = feed.favicon;
Uri faviconUri;
if (Uri.TryCreate(feed.link, UriKind.Absolute, out faviconUri))
{
id = "{0}/{1}".FormatWith(faviconUri.Authority, feed.favicon);
}
Image image;
if (_favicons.TryGetValue(id, out image))
{
return(image);
}
try
{
byte[] imageData = source.GetFaviconForFeed(feed);
if (ImageDataAreResized(ref imageData, feed.favicon, out image))
{
// save resized image data to permanent store:
source.SetFaviconForFeed(feed, feed.favicon, imageData);
}
}
catch (Exception ex)
{
_log.Error("Failed in GetImage({0}); id = {1}".FormatWith(feed.link, id), ex);
}
lock (_favicons)
{
if (!_favicons.ContainsKey(id))
{
_favicons.Add(id, image);
}
}
return(image);
}
public static Image GetImage(FeedSource source, INewsFeed feed)
{
if (feed == null || source == null)
{
return(null);
}
if (!source.FeedHasFavicon(feed))
{
return(null);
}
var id = feed.favicon;
Uri faviconUri;
if (Uri.TryCreate(feed.link, UriKind.Absolute, out faviconUri))
{
id = $"{faviconUri.Authority}/{feed.favicon}";
}
Image image = null;
try
{
if (_favicons.TryGetValue(id, out image))
{
// Ensure they're valid
var w = image.Width;
var h = image.Height;
return(image);
}
byte[] imageData = source.GetFaviconForFeed(feed);
if (ImageDataAreResized(ref imageData, feed.favicon, out image))
{
// save resized image data to permanent store:
source.SetFaviconForFeed(feed, feed.favicon, imageData);
// Ensure they're valid
var w = image.Width;
var h = image.Height;
}
}
catch (Exception ex)
{
_log.Error($"Failed in GetImage({feed.link}); id = {id}", ex);
}
lock (_favicons)
{
if (!_favicons.ContainsKey(id) && image != null)
{
_favicons.Add(id, image);
}
}
return(image);
}