public virtual async Task <List <T> > GetAllWhereAsync(Func <T, bool> filterPredicate, bool skipDatabaseConsistencyCheck = false)
{
if (filterPredicate == null)
{
return(new List <T>());
}
// If this is the first time the GetAllAsync has been called, we return 0, despite the fact that there might be some in the cache.
// This is because we want to force the call to the database to ensure that we have a true "all" which will also then populate the cache
// in the service layer.
if (skipDatabaseConsistencyCheck)
{
var allItemsNoDbCheck = await _appCache.GetAllItemsInPartitionAsync <T>(PartitionNameFormatter()).ConfigureAwait(false);
return(allItemsNoDbCheck.Where(filterPredicate).ToList());
}
var key = ComposeLastCallToGetAllCacheKey();
var containsKey = _appCache.Contains(key);
if (!containsKey)
{
_appCache.AddOrUpdate(key, DateTimeOffset.UtcNow, TimeSpan.FromDays(2));
return(new List <T>());
}
_appCache.AddOrUpdate(key, DateTimeOffset.UtcNow, TimeSpan.FromDays(2));
var allItems = await _appCache.GetAllItemsInPartitionAsync <T>(PartitionNameFormatter()).ConfigureAwait(false);
return(allItems.Where(filterPredicate).ToList());
}
