private TagReadData ParseRqlResponse(string row, DateTime baseTime)
{
String[] fields = row.Split(_selFieldSeps);
if (_readFieldNames.Length != fields.Length)
{
throw new ReaderParseException(String.Format("Unrecognized format."
+ " Got {0} fields in RQL response, expected {1}.",
fields.Length, _readFieldNames.Length));
}
byte[] epccrc = ByteFormat.FromHex(fields[ID].Substring(2));
byte[] epc = new byte[epccrc.Length - 2];
Array.Copy(epccrc, epc, epc.Length);
byte[] crc = new byte[2];
Array.Copy(epccrc, epc.Length, crc, 0, 2);
TagProtocol proto = CodeToProtocol(fields[PROTOCOL_ID]);
string idfield = fields[ID];
TagData tag = null;
switch (proto)
{
case TagProtocol.GEN2:
byte[] pcbits = null;
if (_readFieldNames.Length > 7)
{
pcbits = ByteFormat.FromHex(fields[METADATA].ToString());
}
tag = new Gen2.TagData(epc, crc,pcbits);
break;
case TagProtocol.ISO180006B:
tag = new Iso180006b.TagData(epc, crc);
break;
case TagProtocol.IPX64:
tag = new Ipx64.TagData(epc, crc);
break;
case TagProtocol.IPX256:
tag = new Ipx256.TagData(epc, crc);
break;
default:
throw new ReaderParseException("Unknown protocol code " + fields[PROTOCOL_ID]);
}
int antenna = int.Parse(fields[ANTENNA_ID]);
TagReadData tr = new TagReadData();
tr.Reader = this;
tr._tagData = tag;
tr._antenna = antenna;
tr._baseTime = baseTime;
tr.ReadCount = int.Parse(fields[READ_COUNT]);
if (_readFieldNames.Length > 7)
{
tr._data = ByteFormat.FromHex(fields[DATA]);
tr._phase = int.Parse(fields[PHASE]);
}
tr._readOffset = int.Parse(fields[DSPMICROS]) / 1000;
tr._frequency = int.Parse(fields[FREQUENCY]);
if ("Mercury5" != _model)
{
tr._lqi = int.Parse(fields[LQI]);
}
return tr;
}
private void ParseNotifyTag(MSG_RO_ACCESS_REPORT msg)
{
if (null == tagReads)
{
tagReads = new List<TagReadData>();
}
TagReadData tag = null;
if (null != msg)
{
for (int i = 0; i < msg.TagReportData.Length; i++)
{
try
{
tag = new TagReadData();
if (msg.TagReportData[i].EPCParameter.Count > 0)
{
string epc;
// reports come in two flavors. Get the right flavor
if (msg.TagReportData[i].EPCParameter[0].GetType() == typeof(PARAM_EPC_96))
{
epc = ((PARAM_EPC_96)(msg.TagReportData[i].EPCParameter[0])).EPC.ToHexString();
}
else
{
epc = ((PARAM_EPCData)(msg.TagReportData[i].EPCParameter[0])).EPC.ToHexString();
}
TagData td = new TagData(ByteFormat.FromHex(epc));
TagProtocol tagProtocol = 0;
//Match the recieved rospec id with the rospec id stored in the hashtable at the time of setting readplan
if (roSpecProtcolTable.ContainsKey(msg.TagReportData[i].ROSpecID.ROSpecID))
{
tagProtocol = (TagProtocol)roSpecProtcolTable[msg.TagReportData[i].ROSpecID.ROSpecID];
}
if (TagProtocol.GEN2.Equals(tagProtocol))
{
//Get crc and pc bits
UNION_AirProtocolTagData tagdata = msg.TagReportData[i].AirProtocolTagData;
td = new Gen2.TagData(ByteFormat.FromHex(epc), ByteConv.EncodeU16(((PARAM_C1G2_CRC)tagdata[1]).CRC), ByteConv.EncodeU16(((PARAM_C1G2_PC)tagdata[0]).PC_Bits));
}
else if (TagProtocol.ISO180006B.Equals(tagProtocol))
{
td = new Iso180006b.TagData(ByteFormat.FromHex(epc));
}
else
{
td = new TagData(ByteFormat.FromHex(epc));
}
tag.Reader = this;
tag._tagData = td;
tag._antenna = (int)msg.TagReportData[i].AntennaID.AntennaID;
UInt64 usSinceEpoch = msg.TagReportData[i].LastSeenTimestampUTC.Microseconds;
tag._baseTime = epochTime.AddMilliseconds(usSinceEpoch / 1000);
tag._readOffset = 0;
// Since Spruce release firmware doesn't support phase, there won't be PARAM_ThingMagicTagReportContentSelector
// custom paramter in ROReportSpec
string[] ver = softwareVersion.Split('.');
if (((Convert.ToInt32(ver[0]) == 4) && (Convert.ToInt32(ver[1]) >= 17)) ||
(Convert.ToInt32(ver[0]) > 4))
{
tag._phase = Convert.ToInt32(((PARAM_ThingMagicRFPhase)msg.TagReportData[i].Custom[0]).Phase);
}
tag.Rssi = Convert.ToInt32(msg.TagReportData[i].PeakRSSI.PeakRSSI.ToString());
tag.ReadCount = msg.TagReportData[i].TagSeenCount.TagCount;
int chIndex = Convert.ToInt32(msg.TagReportData[i].ChannelIndex.ChannelIndex);
List<uint> freq = frequencyHopTable[0].Frequency.data;
tag._frequency = Convert.ToInt32(freq[chIndex - 1]);
UNION_AccessCommandOpSpecResult opSpecResult = msg.TagReportData[i].AccessCommandOpSpecResult;
tag._data = EMPTY_DATA;
// Use try-finally to to keep failed tagops from preventing report of TagReadData
try
{
if (null != opSpecResult)
{
if (opSpecResult.Count > 0)
{
ParseTagOpSpecResultType(opSpecResult, ref tag);
}
}
}
finally
{
if (continuousReading)
{
OnTagRead(tag);
}
else
{
tagReads.Add(tag);
}
}
}
}
catch (Exception ex)
{
ReaderException rx;
if (ex is ReaderException)
{
rx = (ReaderException)ex;
}
else
{
rx = new ReaderException(ex.ToString());
}
//Release the TagQueueEmptyEvent when parsing exception raised
TagQueueEmptyEvent.Set();
ReadExceptionPublisher expub = new ReadExceptionPublisher(this, rx);
Thread trd = new Thread(expub.OnReadException);
trd.Name = "OnReadException";
trd.Start();
}
finally
{
tag = null;
}
}
TagQueueEmptyEvent.Set();
}
}
