/// <summary>
/// After a "Put" request has been processed and the response basket has ascended to here
/// any cached object and collection which is now invalid is removed from the cache
/// </summary>
/// <param name="basket">A basket</param>
/// <param name="visit">The visit the basket is currently making</param>
/// <returns>A Task that may be awaited</returns>
public Task AscendFromAsync(IPutBasket <TId, T> basket, IVisit visit)
{
// always remove items from cache on way back up, otherwise another thread
// may repopulate the cache before the decent is complete
if (basket?.DescentPayload != null)
{
Cache.RemoveCollection();
Cache.Remove(basket.DescentPayload.Identity);
}
return(Task.CompletedTask);
}
/// <summary>
/// No action performed
/// </summary>
/// <param name="basket">A basket</param>
/// <param name="visit">The visit the basket is currently making</param>
/// <returns>A Task that may be awaited</returns>
public Task DescendToAsync(IPutBasket <TId, T> basket, IVisit visit)
{
return(Task.CompletedTask);
}
public Task AddResultAsync(IPutBasket <int, Frog, int> basket, IVisit visit)
{
basket.AscentPayload = 1;
return(Task.CompletedTask);
}
public Task <IPutBasket <int, Frog, int> > SendAsync(IPutBasket <int, Frog, int> basket)
{
return(new Shaft <IPutBasket <int, Frog, int> >(TerminalLayer)
.Add(CacheLayer)
.SendAsync(basket));
}
/// <summary>
/// Performs no action
/// </summary>
/// <param name="basket">A basket</param>
/// <param name="visit">The visit the basket is currently making</param>
/// <returns>A Task that may be awaited</returns>
public Task AscendFromAsync(IPutBasket basket, IVisit visit)
{
return(Task.CompletedTask);
}
/// <summary>
/// If the user is not allowed to "Put" T's then an UnauthorizedAccessException will be thrown.
/// </summary>
/// <param name="basket">The request</param>
/// <param name="visit">The visit the basket is currently making</param>
/// <returns>A Task that may be awaited</returns>
public Task DescendToAsync(IPutBasket basket, IVisit visit)
{
EnsureOperationAllowed(Operations.Put, basket, visit);
return(Task.CompletedTask);
}