public static bool LoadTvCache([NotNull] FileInfo loadFrom, iTVSource cache)
{
Logger.Info("Loading Cache from: {0}", loadFrom.FullName);
if (!loadFrom.Exists)
{
return(true); // that's ok
}
try
{
XElement x = XElement.Load(loadFrom.FullName);
bool r = ProcessSeriesXml(x, cache);
if (r)
{
cache.UpdatesDoneOk();
}
return(r);
}
catch (Exception e)
{
Logger.Warn(e, "Problem on Startup loading File");
LoadErr = loadFrom.Name + " : " + e.Message;
return(false);
}
}
private static void ProcessXmlBannerCache([NotNull] XElement r, iTVSource localCache)
{
//this is a wrapper that provides the seriesId and the Banners List as provided from the website
//
//
// <BannersCache>
// <BannersItem Expiry='xx'>
// <SeriesId>123</SeriesId>
// <Banners>
// <Banner>
foreach (XElement bannersXml in r.Descendants("BannersItem"))
{
int seriesId = bannersXml.ExtractInt("SeriesId") ?? -1;
localCache.AddBanners(seriesId, bannersXml.Descendants("Banners").Descendants("Banner")
.Select(banner => new Banner(seriesId, banner)));
}
}
private static bool ProcessSeriesXml([NotNull] XElement x, [NotNull] iTVSource cache)
{
// Will have one or more cachedSeries, and episodes
// all wrapped in <Data> </Data>
// e.g.:
//<Data>
// <Series>
// <id>...</id>
// etc.
// </Series>
// <Episode>
// <id>...</id>
// blah blah
// </Episode>
// <Episode>
// <id>...</id>
// blah blah
// </Episode>
// ...
//</Data>
try
{
string?time = x.Attribute("time")?.Value;
if (time != null)
{
cache.LatestUpdateTimeIs(time);
}
else
{
Logger.Error("Could not obtain update time from XML");
}
foreach (CachedSeriesInfo si in x.Descendants("Series").Select(seriesXml => new CachedSeriesInfo(seriesXml)))
{
// The <cachedSeries> returned by GetSeries have
// less info than other results from
// thetvdb.com, so we need to smartly merge
// in a <Series> if we already have some/all
// info on it (depending on which one came
// first).
cache.UpdateSeries(si);
}
foreach (XElement episodeXml in x.Descendants("Episode"))
{
Episode e = new Episode(episodeXml);
if (e.Ok())
{
cache.AddOrUpdateEpisode(e);
}
else
{
Logger.Error($"problem with XML recieved {episodeXml}");
}
}
foreach (XElement banners in x.Descendants("BannersCache"))
{
//this wil not be found in a standard response from the TVDB website
//will only be in the response when we are reading from the cache
ProcessXmlBannerCache(banners, cache);
}
}
catch (XmlException e)
{
string message = "Error processing data from Cache (top level).";
message += "\r\n" + x;
message += "\r\n" + e.Message;
Logger.Error(message);
Logger.Error(x.ToString());
throw new CacheLoadException(message);
}
return(true);
}
