public Bincoding DecodeNext()
{
if (_lastStream != null)
{
if ((_lastStream.Length - _lastStream.Position) > 0)
{
_lastStream.CopyTo(Stream.Null, 4096);
}
_lastStream = null;
}
int intType = _s.ReadByte();
if (intType < 0)
{
return(null);
}
BincodingType type = (BincodingType)intType;
switch (type)
{
case BincodingType.NULL:
return(new Bincoding(type, null));
case BincodingType.SHORTSTRING:
{
int len = _s.ReadByte();
if (len < 0)
{
throw new EndOfStreamException();
}
byte[] value = new byte[len];
_s.ReadBytes(value, 0, value.Length);
return(new Bincoding(type, value));
}
case BincodingType.BOOLEAN:
case BincodingType.BYTE:
{
int value = _s.ReadByte();
if (value < 0)
{
throw new EndOfStreamException();
}
return(new Bincoding(type, new byte[] { (byte)value }));
}
case BincodingType.SHORT:
case BincodingType.USHORT:
{
byte[] value = new byte[2];
_s.ReadBytes(value, 0, 2);
return(new Bincoding(type, value));
}
case BincodingType.INTEGER:
case BincodingType.UINTEGER:
{
byte[] value = new byte[4];
_s.ReadBytes(value, 0, 4);
return(new Bincoding(type, value));
}
case BincodingType.LONG:
case BincodingType.ULONG:
case BincodingType.DATETIME:
{
byte[] value = new byte[8];
_s.ReadBytes(value, 0, 8);
return(new Bincoding(type, value));
}
case BincodingType.BINARY:
case BincodingType.STRING:
{
int count = ReadLength(_s);
byte[] value = new byte[count];
_s.ReadBytes(value, 0, count);
return(new Bincoding(type, value));
}
case BincodingType.STREAM:
{
int count = ReadLength(_s);
_lastStream = new OffsetStream(_s, _s.Position, count, true, false);
return(Bincoding.ParseValue(_lastStream));
}
case BincodingType.LIST:
{
int count = ReadLength(_s);
List <Bincoding> list = new List <Bincoding>(count);
for (int i = 0; i < count; i++)
{
list.Add(DecodeNext());
}
return(Bincoding.ParseListValue(list));
}
case BincodingType.KEY_VALUE_PAIR:
{
int keyLen = _s.ReadByte();
if (keyLen < 0)
{
throw new EndOfStreamException();
}
byte[] keyBuffer = new byte[keyLen];
_s.ReadBytes(keyBuffer, 0, keyLen);
string key = Encoding.UTF8.GetString(keyBuffer, 0, keyLen);
Bincoding value = DecodeNext();
return(Bincoding.ParseKeyValue(new KeyValuePair <string, Bincoding>(key, value)));
}
case BincodingType.DICTIONARY:
{
int count = ReadLength(_s);
Dictionary <string, Bincoding> dictionary = new Dictionary <string, Bincoding>(count);
for (int i = 0; i < count; i++)
{
Bincoding entry = DecodeNext();
KeyValuePair <string, Bincoding> pair = entry.GetKeyValuePair();
dictionary.Add(pair.Key, pair.Value);
}
return(Bincoding.ParseDictionaryValue(dictionary));
}
default:
throw new InvalidDataException("Invalid bincoding type encountered while decoding data.");
}
}
public void Encode(Bincoding value)
{
_s.WriteByte((byte)value.Type);
switch (value.Type)
{
case BincodingType.NULL:
break;
case BincodingType.SHORTSTRING:
_s.WriteByte(Convert.ToByte(value.Value.Length));
_s.Write(value.Value, 0, value.Value.Length);
break;
case BincodingType.BINARY:
case BincodingType.STRING:
WriteLength(_s, value.Value.Length);
_s.Write(value.Value, 0, value.Value.Length);
break;
case BincodingType.STREAM:
Stream stream = value.GetValueStream();
WriteLength(_s, Convert.ToInt32(stream.Length - stream.Position));
stream.CopyTo(_s);
break;
case BincodingType.LIST:
ICollection <Bincoding> list = value.GetList();
WriteLength(_s, list.Count);
foreach (Bincoding item in list)
{
Encode(item);
}
break;
case BincodingType.KEY_VALUE_PAIR:
KeyValuePair <string, Bincoding> keyValue = value.GetKeyValuePair();
byte[] keyBuffer = Encoding.UTF8.GetBytes(keyValue.Key);
_s.WriteByte(Convert.ToByte(keyBuffer.Length));
_s.Write(keyBuffer, 0, keyBuffer.Length);
Encode(keyValue.Value);
break;
case BincodingType.DICTIONARY:
IDictionary <string, Bincoding> dictionary = value.GetDictionary();
WriteLength(_s, dictionary.Count);
foreach (KeyValuePair <string, Bincoding> item in dictionary)
{
EncodeKeyValue(item);
}
break;
default:
_s.Write(value.Value, 0, value.Value.Length);
break;
}
}