private int ReadTagChange(OpcNodeId nodeId)
{
try
{
ServiceConfig.Reader readerConfig = null;
foreach (var serviceConfig in RfidService.ServiceConfigs)
{
readerConfig =
serviceConfig.Readers.FirstOrDefault(reader =>
reader.Tags.ReaderTag.ReadTag == nodeId.ToString());
if (readerConfig != null)
{
break;
}
}
if (readerConfig == null)
{
_eventLog.WriteEntry("Unable to find matching config. Check system settings.", EventLogEntryType.Error, (int)EventIds.Ids.NullReaderError);
_client.WriteNode(nodeId, false);
return(1);
}
using (var reader = new RfidReader(readerConfig, ref _eventLog))
{
if (!reader.GetStatus())
{
_client.WriteNode(readerConfig.Tags.ErrorTag.ErrorBool, true);
_client.WriteNode(readerConfig.Tags.ErrorTag.ErrorString, "Reader not online!");
_client.WriteNode(nodeId, false);
return(1);
}
var nodeVal = reader.Read_Epc();
if (string.IsNullOrEmpty(nodeVal))
{
_client.WriteNode(readerConfig.Tags.ErrorTag.ErrorBool, true);
_client.WriteNode(readerConfig.Tags.ErrorTag.ErrorString, "No Tags Detected!");
_client.WriteNode(readerConfig.Tags.UuidTag.UuidTag, string.Empty);
}
else
{
_client.WriteNode(readerConfig.Tags.UuidTag.UuidTag, nodeVal);
}
_client.WriteNode(nodeId, false);
}
return(0);
}
catch (Exception e)
{
_eventLog.WriteEntry($"Unknown Error\n{e.Message}\n{e.StackTrace}\n\n{e.InnerException}", EventLogEntryType.Error, (int)EventIds.Ids.UnknownError);
return(1);
}
}
public RfidReader(ServiceConfig.Reader readerConfig, ref EventLog log)
{
_eventLog = log;
try
{
var connected = Connect(readerConfig.Address, readerConfig.PortNum);
if (connected != 0x35 || connected != 0x00) //Success
{
_eventLog.WriteEntry($"Unsuccessfully Connected\n{EventIds.GetReturnCodeDesc(connected)}", EventLogEntryType.FailureAudit, (int)EventIds.Ids.UnsuccessfulRFIDConnection);
}
}
catch (Exception e)
{
_eventLog.WriteEntry($"Unknown Error\n{e.Message}\n{e.StackTrace}\n\n{e.InnerException}", EventLogEntryType.Error, (int)EventIds.Ids.UnknownError);
}
}