/// <summary>
/// Background method used to load the contents of the cache, initiated by the cache
/// at the appropriate times
/// </summary>
/// <param name="cancellationToken">The cancellation token for use in cancelling the operation</param>
/// <returns>The list to be placed into the cache</returns>
private async Task <DisallowedFragmentList> GetListToCacheAsync(CancellationToken cancellationToken)
{
IDisallowedFragmentRepository repository;
DisallowedFragmentList list;
try
{
list = new DisallowedFragmentList();
repository = _repositoryFactory.CreateDisallowedFragmentRepository();
try
{
await list.LoadListAsync(repository).ConfigureAwait(false);
}
finally
{
await DisposeRepositoryAsync(repository).ConfigureAwait(false);
}
return(list);
}
catch (Exception ex)
{
_logger.LogError(ex, "Exception during list retrieval");
throw;
}
}
/// <summary>
/// Create a complete, deep clone the list.
/// Used by the underlying cache to avoid threading issues.
/// </summary>
/// <returns>A completely new instance of the list</returns>
public object Clone()
{
DisallowedFragmentList list = new DisallowedFragmentList();
foreach (DisallowedFragmentInfo fragmentInfo in _list)
{
list.Add((DisallowedFragmentInfo)fragmentInfo.Clone());
}
return(list);
}