public async Task <bool> Delete(Guid id)
{
using (var l = await _lock.LockAsync())
{
var f = _getFile(id);
return(await _localStorageFileRepo.Delete(f));
}
}
public async Task <T> GetEntity <T>(string key) where T : class, new()
{
var fullName = _getFullKey <T>(key);
var f = await _getMemory <T>(key);
if (f == null)
{
var locker = XNamedLock.Get(key + "3");
using (var locked = await locker.LockAsync())
{
f = await _getMemory <T>(key);
if (f == null)
{
Debug.WriteLine($"*** Entity cache miss: {fullName}");
f = await _storageFileRepo.Get <XCacheItem <T> >(fullName);
if (f != null && f.Item != null)
{
Debug.WriteLine($" Found: {fullName}");
_updateItem(f.Item, f);
if (!_validateAge(f))
{
//delete it from storage
await _storageFileRepo.Delete(fullName);
return(null);
}
TimeSpan?toLiveFromNow = f.MaxAge != null
? f.DateStamp.Add(f.MaxAge.Value).Subtract(DateTime.UtcNow)
: TimeSpan.FromDays(30);
if (toLiveFromNow.Value.Milliseconds < 0)
{
//this item is in the past!
//Top it up with another day.
toLiveFromNow = TimeSpan.FromDays(1);
}
var cacheEntity = await _setMemory(key, f.Item, toLiveFromNow);
_updateItem(cacheEntity.Item, cacheEntity);
}
}
if (f == null)
{
Debug.WriteLine($" Not found: {fullName}");
return(null);
}
}
}
//else
//{
// Debug.WriteLine($"Entity cache hit: {fullName}");
//}
_updateItemCacheSource(f.Item, true);
return(_validateAge(f) ? f.Item : null);
}
