/// <summary>
/// Determine if an valid entry for the key exists in the staging area.
/// </summary>
public bool ContainsKey(ICacheKey key)
{
lock (_mapGate)
{
Preconditions.CheckNotNull(key);
EncodedImage storedEncodedImage = default(EncodedImage);
if (!_map.TryGetValue(key, out storedEncodedImage))
{
return(false);
}
if (!EncodedImage.IsValid(storedEncodedImage))
{
// Reference is not valid, this means that someone cleared reference
// while it was still in use.
// Log error TODO: 3697790
_map.Remove(key);
Debug.WriteLine($"Found closed reference { storedEncodedImage.GetHashCode() } for key { key.ToString() } ({ key.GetHashCode() })");
return(false);
}
return(true);
}
}
