/// <summary>
/// Unwrap object wrapped in <see cref="SerializedObjectWrapper"/>
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
object Unwrap(SerializedObjectWrapper item)
{
if (item.Data.Array == null)
return null;
if (item.Flags == RawDataFlag)
{
ArraySegment<byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
return tmp.Array;
// we should never arrive here, but it's better to be safe than sorry
var retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return retval;
}
var code = (TypeCode)(item.Flags & 0x00ff);
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return (data == null || count == 0)
? null
: Encoding.UTF8.GetString(data, offset, count);
case TypeCode.DBNull:
return null;
case TypeCode.String:
return Encoding.UTF8.GetString(data, offset, count);
case TypeCode.Boolean:
return BitConverter.ToBoolean(data, offset);
case TypeCode.Int16:
return BitConverter.ToInt16(data, offset);
case TypeCode.Int32:
return BitConverter.ToInt32(data, offset);
case TypeCode.Int64:
return BitConverter.ToInt64(data, offset);
case TypeCode.UInt16:
return BitConverter.ToUInt16(data, offset);
case TypeCode.UInt32:
return BitConverter.ToUInt32(data, offset);
case TypeCode.UInt64:
return BitConverter.ToUInt64(data, offset);
case TypeCode.Char:
return BitConverter.ToChar(data, offset);
case TypeCode.DateTime:
return DateTime.FromBinary(BitConverter.ToInt64(data, offset));
case TypeCode.Double:
return BitConverter.ToDouble(data, offset);
case TypeCode.Single:
return BitConverter.ToSingle(data, offset);
case TypeCode.Object:
using (var ms = new MemoryStream(data, offset, count))
{
#if NETSTANDARD1_3
return null;
#else
return bf.Deserialize(ms);
#endif
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
/// <summary>
/// Unwrap object wrapped in <see cref="SerializedObjectWrapper"/>
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
object Unwrap(SerializedObjectWrapper item)
{
if (item.Data.Array == null)
{
return(null);
}
if (item.Flags == RawDataFlag)
{
ArraySegment <byte> tmp = item.Data;
if (tmp.Count == tmp.Array.Length)
{
return(tmp.Array);
}
// we should never arrive here, but it's better to be safe than sorry
var retval = new byte[tmp.Count];
Array.Copy(tmp.Array, tmp.Offset, retval, 0, tmp.Count);
return(retval);
}
var code = (TypeCode)(item.Flags & 0x00ff);
byte[] data = item.Data.Array;
int offset = item.Data.Offset;
int count = item.Data.Count;
switch (code)
{
// incrementing a non-existing key then getting it
// returns as a string, but the flag will be 0
// so treat all 0 flagged items as string
// this may help inter-client data management as well
//
// however we store 'null' as Empty + an empty array,
// so this must special-cased for compatibilty with
// earlier versions. we introduced DBNull as null marker in emc2.6
case TypeCode.Empty:
return((data == null || count == 0)
? null
: Encoding.UTF8.GetString(data, offset, count));
case TypeCode.DBNull:
return(null);
case TypeCode.String:
return(Encoding.UTF8.GetString(data, offset, count));
case TypeCode.Boolean:
return(BitConverter.ToBoolean(data, offset));
case TypeCode.Int16:
return(BitConverter.ToInt16(data, offset));
case TypeCode.Int32:
return(BitConverter.ToInt32(data, offset));
case TypeCode.Int64:
return(BitConverter.ToInt64(data, offset));
case TypeCode.UInt16:
return(BitConverter.ToUInt16(data, offset));
case TypeCode.UInt32:
return(BitConverter.ToUInt32(data, offset));
case TypeCode.UInt64:
return(BitConverter.ToUInt64(data, offset));
case TypeCode.Char:
return(BitConverter.ToChar(data, offset));
case TypeCode.DateTime:
return(DateTime.FromBinary(BitConverter.ToInt64(data, offset)));
case TypeCode.Double:
return(BitConverter.ToDouble(data, offset));
case TypeCode.Single:
return(BitConverter.ToSingle(data, offset));
case TypeCode.Object:
using (var ms = new MemoryStream(data, offset, count))
{
return(bf.Deserialize(ms));
}
default: throw new InvalidOperationException("Unknown TypeCode was returned: " + code);
}
}
