/// <summary>
/// Loads the cache file to populate the in memory cache.
/// </summary>
private void LoadCache()
{
lock (SyncRoot)
{
SQLContext.CreateDatabase();
Dictionary <string, CachedImage> dictionary = SQLContext.GetImages();
foreach (KeyValuePair <string, CachedImage> pair in dictionary)
{
this.Add(pair);
}
}
}
/// <summary>
/// Saves the in memory cache to the file-system.
/// </summary>
/// <param name="key">
/// The key.
/// </param>
/// <param name="cachedImage">
/// The cached Image.
/// </param>
/// <param name="remove">
/// The remove.
/// </param>
/// <returns>
/// true, if the dictionary is saved to the file-system; otherwise, false.
/// </returns>
private async Task <int> SaveCacheAsync(string key, CachedImage cachedImage, bool remove)
{
try
{
if (remove)
{
return(await SQLContext.RemoveImageAsync(cachedImage));
}
return(await SQLContext.AddImageAsync(cachedImage));
}
catch
{
return(0);
}
}