/// <summary>
/// Get payoad from PDU by tag type and request ID.
/// </summary>
/// <param name="pdu"></param>
/// <param name="tagType"></param>
/// <param name="requestId"></param>
/// <returns></returns>
private static PduPayload GetPayload(Pdu pdu, uint tagType, ulong?requestId)
{
foreach (PduPayload payload in pdu.Payloads)
{
if (payload.Type == tagType)
{
if (!requestId.HasValue)
{
return(payload);
}
RequestResponsePayload responsePayload = payload as RequestResponsePayload;
if (responsePayload != null && responsePayload.RequestId == requestId)
{
return(payload);
}
}
}
return(null);
}
/// <summary>
/// Parse KSI service response.
/// </summary>
/// <param name="data">Response byte array</param>
/// <param name="requestId">Request ID</param>
/// <returns></returns>
public PduPayload Parse(byte[] data, ulong?requestId = null)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
RawTag rawTag = null;
Pdu pdu = null;
LegacyPdu legacyPdu = null;
try
{
using (TlvReader reader = new TlvReader(new MemoryStream(data)))
{
rawTag = new RawTag(reader.ReadTag());
}
if (rawTag.Type == GetPduTagType(false))
{
if (_pduVersion == PduVersion.v1)
{
throw new KsiServiceUnexpectedResponseFormatException("Received PDU v2 response to PDU v1 request. Configure the SDK to use PDU v2 format.");
}
pdu = GetPdu(rawTag);
}
else if (rawTag.Type == GetPduTagType(true))
{
if (_pduVersion == PduVersion.v2)
{
if (!IsLegacyRequestSupported())
{
throw new KsiServiceUnexpectedResponseFormatException("Received PDU v1 response to PDU v2 request.");
}
throw new KsiServiceUnexpectedResponseFormatException("Received PDU v1 response to PDU v2 request. Configure the SDK to use PDU v1 format.");
}
legacyPdu = GetLegacyPdu(rawTag);
}
else
{
throw new KsiServiceException("Unknown response PDU tag type: " + rawTag.Type.ToString("X"));
}
if (legacyPdu != null)
{
return(GetLegacyResponsePayload(legacyPdu, requestId));
}
else
{
CheckAggregatorConfigChange(pdu);
CheckExtenderConfigChange(pdu);
return(GetResponsePayload(data, pdu, requestId));
}
}
catch (TlvException e)
{
KsiException ksiException = new KsiServiceException("Could not parse response message: " + Base16.Encode(data), e);
if (requestId.HasValue)
{
Logger.Warn("Request failed (request id: {0}): {1}", requestId, ksiException);
}
else
{
Logger.Warn("Request failed: {0}", ksiException);
}
throw ksiException;
}
catch (KsiException e)
{
if (requestId.HasValue)
{
Logger.Warn("Request failed (request id: {0}){1}{2}{1}PDU:{1}{3}", requestId, Environment.NewLine, e, legacyPdu ?? pdu ?? (ITlvTag)rawTag);
}
else
{
Logger.Warn("Request failed.{0}{1}{0}PDU:{0}{2}", Environment.NewLine, e, legacyPdu ?? pdu ?? (ITlvTag)rawTag);
}
throw;
}
}