/// <summary>
/// 从程序集加载所有格式器到DefaultDatagrams。
/// </summary>
public void LoadFromAssembly()
{
DefaultDatagrams.Clear();
var q = from i in typeof(DatagramFormatterBase).Assembly.GetTypes()
where i.IsSubclassOf(typeof(DatagramFormatterBase)) && !i.IsAbstract
select i;
foreach (var i in q)
{
try
{
var c = i.GetConstructor(new Type[] { typeof(byte) });
DatagramFormatterBase d = (DatagramFormatterBase)c.Invoke(new object[] { c.GetParameters().First().DefaultValue }); //Activator.CreateInstance(i) ;
DefaultDatagrams.Add(d.ASDUType, d);
}
catch (Exception) { }
}
}
/// <summary>
/// 使用默认或指定的格式器组解析报文。
/// </summary>
/// <param name="buf">报文数据</param>
/// <param name="formatters">指定格式器组</param>
/// <returns></returns>
public ParseResult ParseAPDU(byte[] buf, Dictionary <byte, DatagramFormatterBase> formatters = null)
{
if (formatters == null)
{
formatters = DefaultDatagrams;
}
ParseResult result;
result.APDU = null;
result.Datagram = null;
try
{
DatagramFormatterBase formatter = null;
var APDU = new APDU(buf);
if (APDU.Format == DatagramFormat.InformationTransmit)
{
var ASDU = new ASDU(buf, APDU.APCILength);
APDU.ASDU = ASDU;
if (formatters.TryGetValue(ASDU.Type, out formatter))
{
APDU.Formatter = formatter;
byte bi = APDU.APCILength + ASDU.HeaderLength;
if (ASDU.SQ)
{
var m = new Message(formatter.ElementType, formatter.AddrLength, formatter.ExtraLength, formatter.TimeStampLength);
for (int i = 0; i < formatter.AddrLength; i++)
{
m.Addr[i] = buf[bi++];
}
for (int i = 0; i < formatter.ElementType.Length(); i++)
{
m.Element[i] = buf[bi++];
}
for (int i = 0; i < formatter.ExtraLength; i++)
{
m.Extra[i] = buf[bi++];
}
for (int i = 0; i < formatter.TimeStampLength; i++)
{
m.TimeStamp[i] = buf[bi++];
}
ASDU.Messages.Add(m);
var addr = m.Address;
for (int k = 1; k < ASDU.MsgCount; k++)
{
m = new Message(formatter.ElementType, 0, formatter.ExtraLength, formatter.TimeStampLength);
m.Address = ++addr;
for (int i = 0; i < formatter.ElementType.Length(); i++)
{
m.Element[i] = buf[bi++];
}
for (int i = 0; i < formatter.ExtraLength; i++)
{
m.Extra[i] = buf[bi++];
}
for (int i = 0; i < formatter.TimeStampLength; i++)
{
m.TimeStamp[i] = buf[bi++];
}
ASDU.Messages.Add(m);
}
}
else
{
for (int k = 0; k < ASDU.MsgCount; k++)
{
var m = new Message(formatter.ElementType, formatter.AddrLength, formatter.ExtraLength, formatter.TimeStampLength);
for (int i = 0; i < formatter.AddrLength; i++)
{
m.Addr[i] = buf[bi++];
}
for (int i = 0; i < formatter.ElementType.Length(); i++)
{
m.Element[i] = buf[bi++];
}
for (int i = 0; i < formatter.ExtraLength; i++)
{
m.Extra[i] = buf[bi++];
}
for (int i = 0; i < formatter.TimeStampLength; i++)
{
m.TimeStamp[i] = buf[bi++];
}
ASDU.Messages.Add(m);
}
}
}
}
result.Datagram = formatter;
result.APDU = APDU;
}
catch (Exception) { }
return(result);
}
