// public static 메서드
public static ClsMultiReadPacketData FindReadPacketData(IEnumerable <ClsMultiReadPacketData> listData, IPEndPoint remoteEP, BACnetReceive data)
{
ClsMultiReadPacketData rtn = null;
BACnetComplexACK complexACK = data.APDU as BACnetComplexACK;
if (data.HasBVLCI & data.HasNPCI & data.IsInterestingAPDU & data.HasReadAccessResult & complexACK != null & complexACK.ServiceChoice == (byte)BACnetService.ReadPropertyMultiple)
{
foreach (ClsMultiReadPacketData nowData in listData)
{
NetworkProtocolControlInformation nowNPCI = data.NPCI;
if (nowData.CheckReceiceData(data.APDU.InvokeId, data.Results, remoteEP, nowNPCI.HasSNET, nowNPCI.SNET, nowNPCI.SADR))
{
rtn = nowData;
break;
}
}
}
return(rtn);
}
// public static 메서드
public static BACnetReceive ReadPacket(byte[] packet, int startIdx, out int nextIdx)
{
BACnetReceive rtn = new BACnetReceive();
int idx = startIdx;
rtn.m_BVLCI = new BACnetVirtualLinkControlInformation(packet, idx, out idx);
if (rtn.m_BVLCI.Type != 0x81)
{
rtn.m_IsPacketError = true;
throw new BACnetPacketException("BVLCI Type 값이 0x81 이 아닙니다");
}
rtn.m_HasBVLCI = true;
nextIdx = startIdx + rtn.m_BVLCI.Length;
if (rtn.m_BVLCI.Function != BACnetFunction.OriginalUnicastNPDU)
{
// Unicast 아님
rtn.m_IsUnicastNPDU = false;
return(rtn);
}
else
{
rtn.m_IsUnicastNPDU = true;
}
rtn.m_NPCI = new NetworkProtocolControlInformation(packet, idx, out idx);
rtn.m_HasNPCI = true;
if ((rtn.m_NPCI.Control & 0x80) > 0)
{
// Network Layer Message
rtn.m_IsNetworkLayerMessage = true;
return(rtn);
}
try
{
rtn.m_PDUType = (BACnetPDUType)(packet[idx] & 0xf0);
}
catch (IndexOutOfRangeException)
{
throw new BACnetPacketException("PDUType 을 읽는 중 패킷의 배열 범위를 벗어났습니다.");
}
switch (rtn.m_PDUType)
{
default:
case BACnetPDUType.BACnetComfirmedRequestPDU:
case BACnetPDUType.BACnetUnconfirmedRequestPDU:
case BACnetPDUType.SegmentACK:
case BACnetPDUType.AbortPDU:
rtn.m_IsInterestingAPDU = false;
return(rtn);
case BACnetPDUType.BACnetSimpleACKPDU:
{
BACnetSimpleACK simpleACK = new BACnetSimpleACK(packet, idx, out idx);
rtn.m_APDU = simpleACK;
rtn.m_IsInterestingAPDU = true;
rtn.m_HasServiceChoice = true;
rtn.m_ServiceChoice = (BACnetService)simpleACK.ServiceChoice;
}
break;
case BACnetPDUType.BACnetComplexACKPDU:
{
BACnetComplexACK complexACK = new BACnetComplexACK(packet, idx, out idx);
rtn.m_APDU = complexACK;
rtn.m_IsInterestingAPDU = true;
rtn.m_HasServiceChoice = true;
rtn.m_ServiceChoice = (BACnetService)complexACK.ServiceChoice;
}
break;
case BACnetPDUType.ErrorPDU:
{
BACnetErrorPDU errorPDU = new BACnetErrorPDU(packet, idx, out idx);
rtn.m_APDU = errorPDU;
rtn.m_IsInterestingAPDU = true;
rtn.m_HasServiceChoice = true;
rtn.m_ServiceChoice = (BACnetService)errorPDU.ServiceChoice;
}
break;
case BACnetPDUType.RejectPDU:
{
BACnetRejectPDU rejectPDU = new BACnetRejectPDU(packet, idx, out idx);
rtn.m_APDU = rejectPDU;
rtn.m_IsInterestingAPDU = true;
rtn.m_HasServiceChoice = false;
}
break;
}
if (rtn.m_PDUType == BACnetPDUType.BACnetComplexACKPDU)
{
if ((rtn.m_APDU.PDUType & 0x08) > 0)
{
// Has Segment
// 현재, 분할 응답에 대한 처리는 되어있지 않음
rtn.m_HasSegment = true;
}
rtn.m_Results = new List <BACnetReadAccessResult>(20);
rtn.m_HasReadAccessResult = true;
try
{
while (idx < nextIdx)
{
BACnetReadAccessResult nowResult = BACnetReadAccessResult.GetResult(packet, idx, out idx);
rtn.m_Results.Add(nowResult);
}
}
catch
{
rtn.m_IsPacketError = true;
throw;
}
}
if (idx != nextIdx)
{
throw new BACnetPacketException("패킷 내용의 길이가 BVLCI 의 Length 와 일치하지 않습니다.");
}
return(rtn);
}