public void UpdateCache <TDbEntity>(List <TDbEntity> entities)
{
try
{
CacheEntity type = CacheEntityMap.GetEntityTypeForDBEntity <TDbEntity>();
CacheStatus cacheStatus = Uow.CacheStatusesRepository.GetCacheStatus(type);
cacheStatus.Status = CacheEntryStatus.UpdateInProgress;
cacheStatus.LastUpdated = DateTime.UtcNow;
// try to get DB lock;
if (Uow.CacheStatusesRepository.TryUpdate(cacheStatus))
{
ICachedEntitiesRepository <TDbEntity> entityRepository = Uow.GetRepository <ICachedEntitiesRepository <TDbEntity> >();
Task task = entityRepository.UpdateCacheAsync(entities);
task.ContinueWith(task1 =>
{
using (IOptionsPlayUow uow = ObjectFactory.GetInstance <IOptionsPlayUow>())
{
cacheStatus = uow.CacheStatusesRepository.GetCacheStatus(type);
cacheStatus.Status = CacheEntryStatus.Active;
cacheStatus.LastUpdated = DateTime.UtcNow;
uow.CacheStatusesRepository.Update(cacheStatus);
uow.Commit();
}
});
}
}
catch (Exception ex)
{
Logging.Logger.Debug("thread ID:" + System.Threading.Thread.CurrentThread.ManagedThreadId.ToString() + ", UpdateCache Exception is:" + ex.StackTrace.ToString() + ", class is DatabaseCacheService");
}
}
//public static IQueryable<OptionBasicInformation> Get(out DBCacheStatus status)
//{
// if (LastUpdated.Value.Add(TimeSpan.FromMinutes(60)) <= DateTime.UtcNow)
// {
// status = DBCacheStatus.Ok;
// }
// else
// {
// status = DBCacheStatus.Expired;
// }
// return OptionBasicInformationCache;
//}
public IQueryable <TEntity> Get <TEntity>(out DBCacheStatus status)
{
CacheEntity type = CacheEntityMap.GetEntityTypeForDBEntity <TEntity>();
CacheStatus cacheStatus = Uow.CacheStatusesRepository.GetCacheStatus(type);
if (cacheStatus.Status == CacheEntryStatus.Empty || cacheStatus.Status == CacheEntryStatus.UpdateInProgress)
{
status = DBCacheStatus.Empty;
return(null);
}
TimeSpan expiration = GetExpirationForEntity(type);
ICachedEntitiesRepository <TEntity> entityRepository = Uow.GetRepository <ICachedEntitiesRepository <TEntity> >();
if (!cacheStatus.LastUpdated.HasValue || cacheStatus.LastUpdated.Value.Add(expiration) <= DateTime.UtcNow)
{
status = DBCacheStatus.Expired;
return(entityRepository.GetAll());
}
if (type == CacheEntity.OptionBasicInformation)
{
if (OptionBasicInformationCache == null)
{
var repository = (IList <OptionBasicInformationCache>)entityRepository.GetAll().ToList();
OptionBasicInformationCache = (List <OptionBasicInformationCache>)repository;
}
}
else
{
if (SecurityInformationCache == null)
{
var repository = (IList <SecurityInformationCache>)entityRepository.GetAll().ToList();
SecurityInformationCache = (List <SecurityInformationCache>)entityRepository.GetAll();
}
}
status = DBCacheStatus.Ok;
return(entityRepository.GetAll());
}
public IQueryable <TDbEntity> Get <TDbEntity>(out DBCacheStatus status)
{
CacheEntity type = CacheEntityMap.GetEntityTypeForDBEntity <TDbEntity>();
CacheStatus cacheStatus = Uow.CacheStatusesRepository.GetCacheStatus(type);
ICachedEntitiesRepository <TDbEntity> entityRepository = Uow.GetRepository <ICachedEntitiesRepository <TDbEntity> >();
if (cacheStatus.Status == CacheEntryStatus.Empty || cacheStatus.Status == CacheEntryStatus.UpdateInProgress)
{
status = DBCacheStatus.Empty;
return(null);
}
TimeSpan expiration = GetExpirationForEntity(type);
if (!cacheStatus.LastUpdated.HasValue || cacheStatus.LastUpdated.Value.Add(expiration) <= DateTime.UtcNow)
{
status = DBCacheStatus.Expired;
return(entityRepository.GetAll());
}
status = DBCacheStatus.Ok;
return(entityRepository.GetAll());
}