public void AddToCache(PictureCacheItem image)
{
Cache.Add(image.PictureId.ToString(), image, CacheItemPriority.Low, null, new SlidingTime(TimeSpan.FromDays(10)));
PictureInfoDTO info;
downloadingPictures.TryRemove(image.PictureId, out info);
}
public PictureCacheItem GetImage(PictureInfoDTO pictureInfo)
{
PictureCacheItem picture = (PictureCacheItem)Cache.GetData(pictureInfo.PictureId.ToString());
if (picture == null || (picture.Image != null && picture.Hash != pictureInfo.Hash))
{
loadImage(pictureInfo);
}
return(picture);
}
public static PictureCacheItem ToPictureCacheItem(this PictureDTO pictureDto)
{
if (pictureDto.ImageStream.CanSeek)
{
pictureDto.ImageStream.Seek(0, SeekOrigin.Begin);
}
MemoryStream stream = new MemoryStream();
pictureDto.ImageStream.CopyTo(stream);
stream.Seek(0, SeekOrigin.Begin);
var image = Image.FromStream(stream);
PictureCacheItem item = new PictureCacheItem(image, pictureDto.PictureId, pictureDto.Hash);
return(item);
}
public void Execute()
{
try
{
var image = ServiceManager.GetImage(picture);
cache.AddToCache(image.ToPictureCacheItem());
cache.Notify(image.GetPictureInfo());
}
catch (FileNotFoundException ex)
{
ExceptionHandler.Default.Process(ex);
PictureCacheItem item = new PictureCacheItem(null, picture.PictureId, picture.Hash);
cache.AddToCache(item);
cache.Notify(new PictureInfoDTO(picture.PictureId, picture.Hash));
}
}