protected void HandleConfiguration(byte[] data)
{
if (ConfigurationMessage.TryDecode(data, _encoding, out ConfigurationMessage msg))
{
_eventManager = new ControllersEventManager(msg, _encoding);
}
else
{
throw new InvalidDataException("Invalid configuration message.");
}
}
/// <summary>
/// Sends a configuration message which sets binding between ids and types of event.
/// </summary>
public async Task <bool> SendConfigurationAsync(WebSocket socket, ConfigurationMessage msg)
{
try
{
IsEventChannel = false;
await socket.SendAsync(new ArraySegment <byte>(new ChangeStateMessage(MessageManagerState.Configuration).Encode(_encoding)), WebSocketMessageType.Binary, true, _src.Token);
await socket.SendAsync(new ArraySegment <byte>(msg.Encode(_encoding)), WebSocketMessageType.Binary, true, _src.Token);
}
catch (Exception)
{
return(false);
}
return(true);
}
/// <summary>
/// Decodes the message and finds Type instances by their name in the data.
/// </summary>
public static bool TryDecode(byte[] data, Encoding encoding, out ConfigurationMessage msg)
{
msg = new ConfigurationMessage();
if (data == null || data.Length < 3)
{
return(false);
}
int countOfControllers = data[2];
int skip = countOfControllers == 0 ? 1 : 2;
byte[][] records = data.Split(0, skip + countOfControllers);
// Go through all records and find their types.
for (int i = skip; i < skip + countOfControllers; i++)
{
byte id = records[i][0];
string nameOfClass = encoding.GetString(records[i], 1, records[i].Length - 1);
try
{
var classType = Type.GetType(nameOfClass);
if (classType.IsSubclassOf(typeof(ControllerEvent)))
{
msg.AddBinding(id, classType);
}
else
{
return(false);
}
}
catch (Exception)
{
return(false);
}
}
return(true);
}
/// <summary>
/// The constructor. Binding between ids and events are obtained from <see cref="ConfigurationMessage"/>.
/// </summary>
public ControllersEventManager(ConfigurationMessage msg, Encoding encoding)
{
Args = msg.Args;
_encoding = encoding;
}