public Task <Chapter> GetChapterAsync(string chptId, string volId, string serId, bool forceRefresh = false)
{
if (!forceRefresh && ChapterCache.ContainsKey(chptId) && !ChapterCache[chptId].IsFaulted)
{
return(ChapterCache[chptId]);
}
if (ChapterCache.Count > MaxCachedUnit)
{
var outdates = (from item in ChapterCache where item.Value.IsCompleted select item.Key).ToArray();
foreach (var key in outdates)
{
ChapterCache.Remove(key);
if (ChapterCache.Count < MaxCachedUnit)
{
break;
}
}
}
var vol = Index.Volumes.FirstOrDefault(v => v.Id == volId);
var task = GetAsync <Chapter>(
ChaptersFolder,
string.Format(ChapterFileName, chptId),
() => DmzjDocSecBase.GetChapterAsync(chptId, vol),
null, forceRefresh);
ChapterCache[chptId] = task;
CachedChapterSet.Add(chptId);
return(task);
}
public async Task <Series> GetIndexAsync(bool forceRefresh = false)
{
if (_indexUpdateTask != null)
{
return(await _indexUpdateTask);
}
if (Index == null || forceRefresh)
{
_indexUpdateTask = GetAsync(BookFolder, SeriesMetaFileName, () => DmzjDocSecBase.GetSeriesAsync(_seriesId), TimeSpan.FromDays(7), forceRefresh).ContinueWith(ts =>
{
Index = ts.Result;
_indexUpdateTask = null;
return(ts.Result);
});
await _indexUpdateTask;
}
return(Index);
}
