static Cache()
{
STEM.Sys.Global.ThreadPool.BeginAsync(new ThreadStart(_TimeoutThread), TimeSpan.FromMinutes(5));
lock (Cache._CacheObjects)
{
if (Cache._CacheObjects.Count == 0)
{
if (Directory.Exists(CacheDirectory))
{
foreach (string file in Directory.GetFiles(CacheDirectory, "*.cache"))
{
try
{
SessionObject so = SessionObject.Deserialize(File.ReadAllText(file));
if (so != null)
{
_CacheObjects[so.Key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)] = so;
}
}
catch { }
}
}
}
}
}
public object this[string key]
{
get
{
if (String.IsNullOrEmpty(key))
{
throw new ArgumentNullException(nameof(key));
}
try
{
if (!_CacheObjects.ContainsKey(key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)))
{
string file = Path.Combine(CacheDirectory, STEM.Sys.State.KeyManager.GetHash(key) + ".cache");
if (File.Exists(file))
{
try
{
SessionObject so = SessionObject.Deserialize(File.ReadAllText(file));
if (so != null)
{
_CacheObjects[so.Key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)] = so;
}
}
catch { }
}
}
if (_CacheObjects.ContainsKey(key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)))
{
object ret = _CacheObjects[key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)].Value;
return(ret);
}
}
catch { }
return(null);
}
set
{
if (String.IsNullOrEmpty(key))
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
lock (_CacheObjects)
_CacheObjects.Remove(key.ToUpper(System.Globalization.CultureInfo.CurrentCulture));
try
{
if (File.Exists(Path.Combine(CacheDirectory, STEM.Sys.State.KeyManager.GetHash(key) + ".cache")))
{
File.Delete(Path.Combine(CacheDirectory, STEM.Sys.State.KeyManager.GetHash(key) + ".cache"));
}
}
catch { }
}
else
{
lock (_CacheObjects)
_CacheObjects[key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)] = new SessionObject(key, value);
try
{
File.WriteAllText(Path.Combine(CacheDirectory, STEM.Sys.State.KeyManager.GetHash(key) + ".cache"), _CacheObjects[key.ToUpper(System.Globalization.CultureInfo.CurrentCulture)].Serialize());
}
catch (Exception ex)
{
STEM.Sys.EventLog.WriteEntry("STEM.Sys.State.Cache", new Exception("Failed to write cache file for key (" + key + ")", ex));
}
}
}
}