/// <summary>
/// Reads the value of a Property inside a object instance.
/// </summary>
/// <param name="ms"></param>
/// <param name="binary"></param>
/// <returns>A NdfValueWrapper Instance.</returns>
protected NdfValueWrapper ReadValue(Stream ms, NdfBinary binary)
{
uint contBufferlen;
NdfValueWrapper value;
var buffer = new byte[4];
ms.Read(buffer, 0, buffer.Length);
NdfType type = NdfTypeManager.GetType(buffer);
if (type == NdfType.Unknown)
{
throw new InvalidDataException("Unknown datatypes are not supported!");
}
if (type == NdfType.Reference)
{
ms.Read(buffer, 0, buffer.Length);
type = NdfTypeManager.GetType(buffer);
}
switch (type)
{
case NdfType.Unknown:
case NdfType.WideString:
case NdfType.List:
case NdfType.MapList:
case NdfType.Blob:
case NdfType.ZipBlob:
ms.Read(buffer, 0, buffer.Length);
contBufferlen = BitConverter.ToUInt32(buffer, 0);
if (type == NdfType.ZipBlob)
{
if (ms.ReadByte() != 1)
{
throw new InvalidDataException("has to be checked.");
}
}
break;
default:
contBufferlen = NdfTypeManager.SizeofType(type);
break;
}
switch (type)
{
case NdfType.MapList:
case NdfType.List:
NdfCollection lstValue = type == NdfType.List ? new NdfCollection() : new NdfMapList();
for (int i = 0; i < contBufferlen; i++)
{
CollectionItemValueHolder res;
if (type == NdfType.List)
{
res = new CollectionItemValueHolder(ReadValue(ms, binary), binary);
}
else
{
res = new CollectionItemValueHolder(
new NdfMap(
new MapValueHolder(ReadValue(ms, binary), binary),
new MapValueHolder(ReadValue(ms, binary), binary),
binary), binary);
}
lstValue.Add(res);
}
value = lstValue;
break;
case NdfType.Map:
value = new NdfMap(
new MapValueHolder(ReadValue(ms, binary), binary),
new MapValueHolder(ReadValue(ms, binary), binary),
binary);
break;
default:
var contBuffer = new byte[contBufferlen];
ms.Read(contBuffer, 0, contBuffer.Length);
value = NdfTypeManager.GetValue(contBuffer, type, binary);
break;
}
return(value);
}
/// <summary>
/// Reads the value of a Property inside a object instance.
/// </summary>
/// <param name="ms"></param>
/// <param name="triggerBreak"></param>
/// <param name="prop"></param>
/// <returns>A NdfValueWrapper Instance.</returns>
protected NdfValueWrapper ReadValue(MemoryStream ms, out bool triggerBreak, NdfPropertyValue prop)
{
var buffer = new byte[4];
uint contBufferlen;
NdfValueWrapper value;
triggerBreak = false;
ms.Read(buffer, 0, buffer.Length);
var type = NdfTypeManager.GetType(buffer);
if (type == NdfType.Reference)
{
ms.Read(buffer, 0, buffer.Length);
type = NdfTypeManager.GetType(buffer);
}
switch (type)
{
case NdfType.WideString:
case NdfType.List:
case NdfType.MapList:
ms.Read(buffer, 0, buffer.Length);
contBufferlen = BitConverter.ToUInt32(buffer, 0);
break;
default:
contBufferlen = NdfTypeManager.SizeofType(type);
break;
}
if (type == NdfType.Unknown)
{
//var t = _unknownTypes.SingleOrDefault(x => Utils.ByteArrayCompare(x, buffer));
//if (t == default(byte[]))
//{
// _unknownTypes.Add(buffer);
// _unknownTypesCount.Add(1);
//}
//else
// _unknownTypesCount[_unknownTypes.IndexOf(t)]++;
triggerBreak = true;
return(new NdfUnkown(buffer, ms.Position));
}
if (type == NdfType.List || type == NdfType.MapList)
{
NdfCollection lstValue;
if (type == NdfType.List)
{
lstValue = new NdfCollection(ms.Position);
}
else
{
lstValue = new NdfMapList(ms.Position);
}
CollectionItemValueHolder res;
for (int i = 0; i < contBufferlen; i++)
{
if (type == NdfType.List)
{
res = new CollectionItemValueHolder(ReadValue(ms, out triggerBreak, prop), this, prop.InstanceOffset);
}
else
{
res = new CollectionItemValueHolder(
new NdfMap(
new MapValueHolder(ReadValue(ms, out triggerBreak, prop), this, prop.InstanceOffset),
new MapValueHolder(ReadValue(ms, out triggerBreak, prop), this, prop.InstanceOffset),
ms.Position),
this, prop.InstanceOffset);
}
lstValue.Add(res);
if (triggerBreak)
{
break;
}
}
value = lstValue;
}
else if (type == NdfType.Map)
{
value = new NdfMap(
new MapValueHolder(ReadValue(ms, out triggerBreak, prop), this, prop.InstanceOffset),
new MapValueHolder(ReadValue(ms, out triggerBreak, prop), this, prop.InstanceOffset),
ms.Position);
}
else
{
var contBuffer = new byte[contBufferlen];
ms.Read(contBuffer, 0, contBuffer.Length);
if (prop != null)
{
prop.ValueData = contBuffer;
}
value = NdfTypeManager.GetValue(contBuffer, type, this, ms.Position - contBuffer.Length);
}
return(value);
}
