private void Input_OnReceive(object sender, ChannelReceivedEventArgs e)
{
MbapHeader header = MbapHeader.Decode(e.Message);
if (header == null)
{
logger?.LogWarning("MBAP Header returned null");
return; //assume keep alive
}
if (!map.HasItem(header.UnitId))
{
byte[] errorMsg = ModbusErrorMessage.Create(e.Message, ErrorCode.GatewayPathsNotAvailable);
this.InputChannel.SendAsync(errorMsg).GetAwaiter();
return;
}
if (!map.GetItem(header.UnitId).Authorize(e.Message))
{
byte[] errorMsg = ModbusErrorMessage.Create(e.Message, ErrorCode.IllegalAddress);
this.InputChannel.SendAsync(errorMsg).GetAwaiter();
return;
}
byte[] message = e.Message;
byte[] msg = null;
foreach (var filter in InputFilters)
{
msg = filter.Execute(message);
msg ??= message;
}
OutputChannel.SendAsync(msg).GetAwaiter();
}
private void Input_OnReceive(object sender, ChannelReceivedEventArgs e)
{
byte[] message = e.Message;
byte[] msg = message;
try
{
MbapHeader header = MbapHeader.Decode(message);
if (header == null)
{
return;
}
Slave slave = config.Slaves.Where(s => s.UnitId == header.UnitId).FirstOrDefault();
byte? alias = slave?.Alias.Value;
foreach (var filter in InputFilters)
{
msg = filter.Execute(message, alias);
msg ??= message;
logger?.LogDebug("Filter executed.");
}
OutputChannel.SendAsync(msg).GetAwaiter();
logger?.LogDebug("Message sent to output channel.");
}
catch (Exception ex)
{
logger?.LogError(ex, "Fault input channel receive.");
}
}