/// <summary>
/// Fetches data and inserts it into cache
/// </summary>
public void FetchAndInsertData()
{
CacheItemContainer cacheItemContainer = ContinuousCacheAccessSynchronizationManager.GetCacheItemContainer(_CacheItemName);
string cacheKey = cacheItemContainer.CacheKey + _IterationKey;
ContinuousCacheAccessSynchronizationManager.SetIsFetchingDataFlag(cacheKey, true);
lock (ContinuousCacheAccessSynchronizationManager.CacheItemNameLocks[cacheItemContainer.CacheItem.Name])
{
#region debug
#if DEBUG
Trace.WriteLine(DebugConstants.DEBUG_PREFIX + "SEPARATE THREAD: Starting FetchAndInsertData at " + DateTime.UtcNow.ToString("HH:mm:ss.fff"));
#endif
#endregion
T item = default(T);
try { item = _LoadObjectDelegate.Invoke(); }
catch (Exception e) { throw new CachingException("An error occurred during the execution of the loadObject delegate. See the inner exception for further details.", e); }
if (item != null)
{
cacheItemContainer.LatestFetch = DateTime.UtcNow;
CacheItemPolicy cacheItemPolicy = new CacheItemPolicy();
cacheItemPolicy.Priority = cacheItemContainer.CacheItem.CacheItemPriority;
cacheItemPolicy.AbsoluteExpiration = cacheItemContainer.ActualExpiryDate;
SlimCacheManager._Cache.Set(
cacheKey
, item
, cacheItemPolicy);
#region debug
#if DEBUG
Trace.WriteLine(DebugConstants.DEBUG_PREFIX + "\n***\n*INPROCESS CACHE INSERT:\n*\t\t\tInserted new object into cache at " + cacheItemContainer.LatestFetch.ToString("HH:mm:ss.fff")
+ "\n*\t\t\tActual expiry date: " + cacheItemContainer.ActualExpiryDate.ToString("HH:mm:ss.fff")
+ "\n*\t\t\tInserted new stale key with expiry date: " + cacheItemContainer.SpecifiedExpiryDate.ToString("HH:mm:ss.fff")
+ "\n************************************************************************************************\n");
#endif
#endregion
}
}
ContinuousCacheAccessSynchronizationManager.SetIsFetchingDataFlag(cacheKey, false);
}
/// <summary>
/// Creates the save item instance.
/// </summary>
/// <param name="cacheItemName">Name of the cache item.</param>
/// <returns></returns>
private static CacheItemContainer CreateSaveItemInstance(string cacheItemName)
{
// we don't check whether the specified name acutally exists but just throw a key not found exception
return(ContinuousCacheAccessSynchronizationManager.GetCacheItemContainer(cacheItemName));
}