/// <summary>
/// Gets an instance by key
/// </summary>
private object GetInstance(Type type, object key, int keyIndex, CycleCache cache)
{
var obj = cache.CheckKey(type, key);
if (obj != null)
{
return(obj);
}
if (keyIndex < 0)
{
return(null);
}
obj = this.Driver.Load(type, key, keyIndex, cache);
return(obj);
}
/// <summary>
/// Load it without knowledge of the key type
/// </summary>
/// <param name="type">The type to load</param>
/// <param name="key">The key</param>
/// <param name="cache">Cache queue</param>
/// <returns>The instance</returns>
public object Load(Type type, object key, CycleCache cache)
{
var newType = type;
var assignable = false;
var keyIndex = -1;
if (!TableDefinitions.ContainsKey(type))
{
// check if type is a base type
foreach (var t in TableDefinitions.Keys.Where(type.IsAssignableFrom))
{
assignable = true;
lock (TableDefinitions[t])
{
keyIndex = TableDefinitions[t].Keys.GetIndexForKey(key);
}
if (keyIndex < 0)
{
continue;
}
newType = t;
break;
}
}
else
{
lock (TableDefinitions[newType])
{
keyIndex = TableDefinitions[newType].Keys.GetIndexForKey(key);
}
}
if (!assignable)
{
if (!TableDefinitions.ContainsKey(type))
{
throw new SterlingTableNotFoundException(type, Name);
}
}
if (keyIndex < 0)
{
return(null);
}
var obj = cache.CheckKey(newType, key);
if (obj != null)
{
return(obj);
}
BinaryReader br = null;
MemoryStream memStream = null;
try
{
br = Driver.Load(newType, keyIndex);
var serializationHelper = new SerializationHelper(this, Serializer, SterlingFactory.GetLogger(),
s => Driver.GetTypeIndex(s),
i => Driver.GetTypeAtIndex(i));
if (_byteInterceptorList.Count > 0)
{
var bytes = br.ReadBytes((int)br.BaseStream.Length);
bytes = _byteInterceptorList.ToArray().Reverse().Aggregate(bytes,
(current, byteInterceptor) =>
byteInterceptor.Load(current));
memStream = new MemoryStream(bytes);
br.Close();
br = new BinaryReader(memStream);
}
obj = serializationHelper.Load(newType, key, br, cache);
}
finally
{
if (br != null)
{
br.Close();
}
if (memStream != null)
{
memStream.Flush();
memStream.Close();
}
}
_RaiseOperation(SterlingOperation.Load, newType, key);
return(obj);
}
