private JObject decodeFields(Reader reader, JArray fields)
{
JObject decoded = new JObject();
int count = fields.Count;
for (int i = 0; i < count; ++i)
{
JObject field = (JObject)fields[i];
if (field["name"] == null)
field["name"] = String.Format("unknown_{0}", i.ToString().PadLeft((int)Math.Floor(Math.Log10(count)), '0'));
decoded.Add((string)field["name"], this.decodeField(reader, (string)field["type"]));
}
return decoded;
}
public JObject decode(int messageId, int unknown, byte[] payload)
{
JObject decoded = new JObject();
JObject definition = (JObject)definitions.GetValue(messageId.ToString());
if (definition != null)
{
Reader reader = new Reader(messageId, unknown, payload);
decoded.Add("name", definition["name"]);
if (definition["fields"] != null)
decoded.Add("fields", this.decodeFields(reader, (JArray)definition["fields"]));
if (this.bitmask != 0)
{
reader.skipBytes(1);
this.bitmask = 0;
}
if (reader.availableBytes() > 0)
throw new ArgumentOutOfRangeException("Unused buffer remains.");
}
else throw new ArgumentOutOfRangeException(String.Format("{0} has not been defined.", messageId));
return decoded;
}
private JToken decodeField(Reader reader, string type)
{
if (reader.availableBytes() == 0)
throw new ArgumentOutOfRangeException("Read buffer out of data.");
if (type.Substring(0, 1) == "?")
{
if (this.bitmask > 0)
{
this.bitmask = (this.bitmask << 1) % 16;
if (this.bitmask == 0)
return null;
}
else
this.bitmask = 1;
if ((reader.peekInt(1) & this.bitmask) != 0)
{
type = type.Substring(1);
reader.skipBytes(1);
this.bitmask = 0;
}
else
return null;
}
else if (this.bitmask != 0)
{
reader.skipBytes(1);
this.bitmask = 0;
}
if (type.Contains("["))
{
int position = type.IndexOf('[');
int count;
if (position < type.Length - 2)
count = Int32.Parse(type.Substring(position + 1, type.Length - position - 2));
else
count = reader.readInt();
JArray decoded = new JArray();
for (int i = 0; i < count; ++i)
decoded.Add(this.decodeField(reader, type.Substring(0, position)));
return decoded;
}
else
{
if (type == "BOOLEAN")
{
if (reader.readInt(1) != 0)
return true;
else
return false;
}
else if (type == "BYTE")
return reader.readByte();
else if (type == "INT")
return reader.readInt();
else if (type == "LONG")
return reader.readLong();
else if (type == "STRING")
return reader.readString();
else if (type == "ZIP_STRING")
return JObject.Parse(reader.readZString());
else if (this.definitions["component"][type] != null)
{
JObject decoded = this.decodeFields(reader, (JArray)this.definitions["component"][type]["fields"]);
if (this.definitions["component"][type]["extensions"] != null)
{
if (this.definitions["component"][type]["extensions"][decoded["id"]] == null)
throw new ArgumentOutOfRangeException(String.Format("{0}(id={1}) has not yet been implemented.", type, decoded["id"]));
}
return decoded;
}
else throw new ArgumentOutOfRangeException(String.Format("{0} has not yet been implemented.", type));
}
}
