public void ExpiringDictionary_GetForKeyAndRefresh_Refreshes()
{
using (var map = new ExpiringDictionary <int, string>(10, 1)) {
map.Add(1, "X");
HeartbeatTick();
_Clock.AddMilliseconds(10);
Assert.AreEqual("X", map.GetForKeyAndRefresh(1));
HeartbeatTick();
Assert.AreEqual(1, map.Count);
}
}
/// <summary>
/// See interface docs.
/// </summary>
/// <param name="icao"></param>
/// <param name="registration"></param>
/// <param name="maxThumbnails"></param>
/// <returns></returns>
public WebRequestResult <AirportDataThumbnailsJson> GetThumbnails(string icao, string registration, int maxThumbnails)
{
var thumbnailKey = new ThumbnailKey(icao, maxThumbnails);
var cachedThumbnail = _ThumbnailCache.GetForKeyAndRefresh(thumbnailKey);
if (cachedThumbnail != null)
{
cachedThumbnail.LastAccessTimeUtc = DateTime.UtcNow;
}
else
{
cachedThumbnail = new CachedThumbnail()
{
LastAccessTimeUtc = DateTime.UtcNow,
Thumbnail = RequestThumbnails(icao, registration, maxThumbnails),
};
_ThumbnailCache.UpsertAndRefresh(thumbnailKey, cachedThumbnail);
}
return(cachedThumbnail.Thumbnail);
}
