static object[] ReadObjectArray(PivotDataStateBinaryReader rdr)
{
var arrLen = rdr.Read7BitEncodedLong();
var arr = new object[arrLen];
for (ulong i = 0; i < arrLen; i++)
{
arr[i] = ReadObject(rdr);
}
return(arr);
}
static uint[][] ReadValueKeys(PivotDataStateBinaryReader rdr, uint dimCount)
{
var arrLen = rdr.Read7BitEncodedLong();
var res = new uint[arrLen][];
for (ulong i = 0; i < arrLen; i++)
{
var entry = new uint[dimCount];
for (int j = 0; j < dimCount; j++)
{
entry[j] = rdr.Read7BitEncodedInt();
}
res[i] = entry;
}
return(res);
}
static object ReadObject(PivotDataStateBinaryReader rdr)
{
var typeCode = rdr.ReadByte();
if (typeCode < TypeCodeReaders.Length)
{
return(TypeCodeReaders[typeCode](rdr));
}
switch (typeCode)
{
case (byte)ExtraTypeCode.ObjectArray:
return(ReadObjectArray(rdr));
case (byte)ExtraTypeCode.KeyEmpty:
return(Key.Empty);
}
throw new InvalidDataException(String.Format("Unknown type code: {0}", typeCode));
}
/// <summary>
/// Deserializes <see cref="PivotDataState"/> from binary data contained by the specified stream
/// </summary>
/// <param name="stream">The <see cref="Stream"/> that contains serialized <see cref="PivotDataState"/> data</param>
/// <returns>deserialized <see cref="PivotDataState"/> instance</returns>
/// <remarks>
/// This method is not supported in .NET Standards (.NET Core) PivotData build (use Json.NET or protobuf-net instead).
/// </remarks>
public static PivotDataState Deserialize(Stream stream)
{
using (var rdr = new PivotDataStateBinaryReader(stream)) {
var typeName = rdr.ReadString();
if (typeName != typeof(PivotDataState).FullName)
{
throw new InvalidDataException();
}
// read version (reserved for future)
var majorVer = rdr.ReadInt32();
var minorVer = rdr.ReadInt32();
var propsCount = rdr.ReadUInt16();
var pvtDataState = new PivotDataState(0, null, null, null);
for (short propIdx = 0; propIdx < propsCount; propIdx++)
{
var propName = rdr.ReadString();
switch (propName)
{
case "KeyValues":
var keyValues = ReadObject(rdr);
if (keyValues is object[])
{
pvtDataState.KeyValues = (object[])keyValues;
}
else
{
throw new InvalidDataException("Invalid value type: KeyValues");
}
break;
case "Values":
var values = ReadObject(rdr);
if (values is object[])
{
pvtDataState.Values = (object[])values;
}
else
{
throw new InvalidDataException("Invalid value type: Values");
}
break;
case "DimCount":
pvtDataState.DimCount = rdr.ReadUInt32();
break;
case "ValueKeys":
if (pvtDataState.DimCount == 0)
{
throw new InvalidDataException("Missed DimCount property");
}
pvtDataState.ValueKeys = ReadValueKeys(rdr, pvtDataState.DimCount);
break;
default:
throw new InvalidDataException(String.Format("Unknown property: {0}", propName));
}
}
return(pvtDataState);
}
}