public SpStream Response(int session, SpObject args)
{
SpObject header = new SpObject();
header.Insert("session", session);
SpStream encode_stream = new SpStream();
mHostTypeManager.Codec.Encode(mHeaderType, header, encode_stream);
if (session != 0 && mSessions.ContainsKey(session))
{
mHostTypeManager.Codec.Encode(mSessions[session].Response, args, encode_stream);
}
SpStream pack_stream = new SpStream();
encode_stream.Position = 0;
SpPacker.Pack(encode_stream, pack_stream);
pack_stream.Position = 0;
return(pack_stream);
}
private SpStream EncodeRequest(string proto, SpObject args, int session)
{
if (mAttachTypeManager == null || mHostTypeManager == null || mHeaderType == null)
{
return(null);
}
SpProtocol protocol = mAttachTypeManager.GetProtocolByName(proto);
if (protocol == null)
{
return(null);
}
SpObject header = new SpObject();
header.Insert("type", protocol.Tag);
if (session != 0)
{
header.Insert("session", session);
}
SpStream stream = mHostTypeManager.Codec.Encode(mHeaderType, header);
if (stream == null)
{
return(null);
}
if (args != null)
{
if (mAttachTypeManager.Codec.Encode(protocol.Request, args, stream) == false)
{
if (stream.IsOverflow())
{
if (stream.Position > SpCodec.MAX_SIZE)
{
return(null);
}
int size = stream.Position;
size = ((size + 7) / 8) * 8;
stream = new SpStream(size);
if (mAttachTypeManager.Codec.Encode(protocol.Request, args, stream) == false)
{
return(null);
}
}
else
{
return(null);
}
}
}
if (session != 0)
{
mSessions[session] = protocol;
}
return(stream);
}
private SpObject DecodeInternal(SpType type)
{
if (mStream == null || type == null)
{
return(null);
}
// buildin type decoding should not be here
if (mTypeManager.IsBuildinType(type))
{
return(null);
}
SpObject obj = new SpObject();
List <int> tags = new List <int>();
int current_tag = 0;
short fn = mStream.ReadInt16();
for (short i = 0; i < fn; i++)
{
int value = (int)mStream.ReadUInt16();
if (value == 0)
{
tags.Add(current_tag);
current_tag++;
}
else
{
if (value % 2 == 0)
{
SpField f = type.GetFieldByTag(current_tag);
if (f == null)
{
return(null);
}
value = value / 2 - 1;
if (f.Type == mTypeManager.Integer)
{
obj.Insert(f.Name, value);
}
else if (f.Type == mTypeManager.Boolean)
{
obj.Insert(f.Name, (value == 0 ? false : true));
}
else
{
return(null);
}
current_tag++;
}
else
{
current_tag += (value + 1) / 2;
}
}
}
for (int c = 0; c < tags.Count; c++)
{
int tag = tags[c];
SpField f = type.GetFieldByTag(tag);
if (f == null)
{
return(null);
}
if (f.IsTable)
{
int size = mStream.ReadInt32();
if (f.Type == mTypeManager.Integer)
{
byte n = mStream.ReadByte();
int count = (size - 1) / n;
SpObject tbl = new SpObject();
for (int i = 0; i < count; i++)
{
switch (n)
{
case 4:
tbl.Insert(i, mStream.ReadInt32());
break;
case 8:
tbl.Insert(i, mStream.ReadInt64());
break;
default:
return(null);
}
}
obj.Insert(f.Name, tbl);
}
else if (f.Type == mTypeManager.Boolean)
{
SpObject tbl = new SpObject();
for (int i = 0; i < size; i++)
{
tbl.Insert(i, mStream.ReadBoolean());
}
obj.Insert(f.Name, tbl);
}
else if (f.Type == mTypeManager.String)
{
SpObject tbl = new SpObject();
int k = 0;
while (size > 0)
{
int str_len = mStream.ReadInt32();
size -= 4;
tbl.Insert(k, Encoding.UTF8.GetString(mStream.ReadBytes(str_len), 0, str_len));
k++;
size -= str_len;
}
obj.Insert(f.Name, tbl);
}
else if (f.Type == null)
{
// unknown type
mStream.ReadBytes(size);
}
else
{
SpObject tbl = new SpObject();
int k = 0;
while (size > 0)
{
int obj_len = mStream.ReadInt32();
size -= 4;
SpObject o = DecodeInternal(f.Type);
if (f.KeyName != null)
{
tbl.Insert(o.AsTable()[f.KeyName].Value, o);
}
else
{
tbl.Insert(k, o);
}
k++;
size -= obj_len;
}
obj.Insert(f.Name, tbl);
}
}
else
{
int size = mStream.ReadInt32();
if (f.Type == mTypeManager.Integer)
{
switch (size)
{
case 4:
obj.Insert(f.Name, mStream.ReadInt32());
break;
case 8:
obj.Insert(f.Name, mStream.ReadInt64());
break;
default:
return(null);
}
}
else if (f.Type == mTypeManager.Boolean)
{
// boolean should not be here
return(null);
}
else if (f.Type == mTypeManager.String)
{
obj.Insert(f.Name, Encoding.UTF8.GetString(mStream.ReadBytes(size), 0, size));
}
else if (f.Type == null)
{
// unknown type
mStream.ReadBytes(size);
}
else
{
obj.Insert(f.Name, DecodeInternal(f.Type));
}
}
}
return(obj);
}
