public ParsedPagePacket FindPagePacket(ParsedPacket packet)
{
ParsedSitePacket sitePacket = FindSitePacket(packet.TerminalId);
if (sitePacket == null)
{
return(null);
}
ParsedDevicePacket devicePacket = sitePacket.FindDevicePacket(packet.ProtocolHeader);
if (devicePacket == null)
{
return(null);
}
ParsedPagePacket pagePacket = devicePacket.FindPagePacket(packet.PageNumber);
return(pagePacket);
}
public void SaveState(ParsedPacket packet)
{
ParsedSitePacket sitePacket = null;
if (packet == null)
{
return;
}
if (!SitePackets.ContainsKey(packet.TerminalId))
{
sitePacket = new ParsedSitePacket(packet);
SitePackets.Add(sitePacket.TerminalId, sitePacket);
}
else
{
sitePacket = SitePackets[packet.TerminalId];
if (sitePacket != null)
{
sitePacket.AddDevicePacket(packet);
}
}
}
public ParsedPacketQueryBuilder(ParsedPacket packet)
{
this.packet = packet;
}
public virtual bool Parse()
{
Protocol protocol = ProtocolList.Instance.Find(Packet.ProtocolHeader);
if (protocol == null)
{
return(false);
}
if (string.IsNullOrWhiteSpace(Packet.Data))
{
return(false);
}
string[] array = Packet.Data.Split(splitter);
if (array == null)
{
return(false);
}
if (array.Length == 0)
{
return(false);
}
ParsedPacket parsedPacket = new ParsedPacket()
{
TerminalId = Packet.TerminalId,
ProtocolHeader = Packet.ProtocolHeader,
ReceivedOn = DateTimeHelper.CurrentUniversalTime
};
if (protocol.PageNumberIndex != -1)
{
if (array.Length > protocol.PageNumberIndex)
{
parsedPacket.PageNumber = int.Parse(array[protocol.PageNumberIndex]);
}
}
Page page = protocol.FindPage(parsedPacket.PageNumber);
if (page == null)
{
return(false);
}
List <string> values = new List <string>();
foreach (Parameter mapping in page.Parameters)
{
try
{
values.Clear();
foreach (int index in mapping.ParameterIndexes)
{
values.Add(array[index]);
}
string value = string.Empty;
if (!string.IsNullOrWhiteSpace(mapping.Expression))
{
value = string.Format(mapping.Expression, values.ToArray());
}
if (mapping.ParameterType == ParameterType.Id)
{
int.TryParse(value, out int id);
parsedPacket.Id = id.ToString("00");
}
else if (mapping.DataType == DataType.DateTime)
{
DateTime datetime = DateTimeHelper.Parse(value, DateTimeFormat.UK.DateTime);
parsedPacket.Fields.Add(new Field(mapping.Field, datetime));
}
else if (mapping.DataType == DataType.Float)
{
byte[] bytes = new byte[4];
for (int ii = 0; ii < values.Count; ii++)
{
bytes[ii] = Convert.ToByte(values[ii]);
}
float floatValue = BitConverter.ToSingle(bytes, 0);
double val = Math.Round(floatValue, mapping.Precision);
parsedPacket.Fields.Add(new Field(mapping.Field, val));
}
else if (mapping.DataType == DataType.MicrochipFloat)
{
/* Float 1 bit for sign 8 bits for exponent and 23 bits for mantissa
* Microchip Float
* a b c d
* eeeeeeee Sxxxxxxx xxxxxxxx xxxxxxxx where x = 0 or 1 and S is sign bit
*
* Standard Float
* a b c d
* Seeeeeee exxxxxxx xxxxxxxx xxxxxxxx where x = 0 or 1 and S is sign bit
*
* conversion performed to make microchip float to standard float
* f = a & 0x80
* e = a & 0x01
* a >>= 1
* a |= f
* e <<= 7
* b |= e
*/
byte[] bytes = new byte[4];
for (int ii = 0; ii < values.Count; ii++)
{
bytes[ii] = Convert.ToByte(values[ii]);
}
byte f = Convert.ToByte(bytes[0] & Convert.ToByte(0x80));
byte e = Convert.ToByte(bytes[0] & Convert.ToByte(0x01));
bytes[0] >>= 1;
bytes[0] |= f;
e <<= 7;
bytes[1] |= e;
float floatValue = BitConverter.ToSingle(bytes, 0);
double val = Math.Round(floatValue, mapping.Precision);
parsedPacket.Fields.Add(new Field(mapping.Field, val));
}
else if (mapping.Evaluate)
{
MathEvaluator evaluator = new MathEvaluator();
double val = Math.Round(evaluator.Evaluate(value), mapping.Precision);
if (mapping.DataType == DataType.Binary)
{
int bin = Convert.ToInt32(val);
int length = mapping.ParameterIndexes.Count * 8;
string binary = ConversionHelper.ToBinary(bin, length);
parsedPacket.Fields.Add(new Field(mapping.Field, binary));
}
else if (mapping.DataType == DataType.Epoch)
{
DateTime datetime = DateTimeHelper.FromEpoch(val);
parsedPacket.Fields.Add(new Field(mapping.Field, datetime));
}
else
{
if (mapping.Signed)
{
int power = (mapping.ParameterIndexes.Count * 8) - 1;
double maxValue = Math.Pow(2, power) - 1;
//val = val > maxValue ? maxValue - val : val;
val = val > maxValue ? val - maxValue * 2 : val;
}
float factor = mapping.Factor == 0 ? 1 : mapping.Factor;
val = Math.Round(val * factor, mapping.Precision);
parsedPacket.Fields.Add(new Field(mapping.Field, val));
}
}
else
{
object val = DataTypeHelper.Convert(mapping.DataType, value);
parsedPacket.Fields.Add(new Field(mapping.Field, val));
}
}
catch (Exception ex)
{
LoggingManager.Log(ex);
return(false);
}
}
ExecuteQuery(parsedPacket);
return(true);
}
public ParsedPagePacket(ParsedPacket packet)
{
PageNumber = packet.PageNumber;
Fields = new Dictionary <string, Field>();
ModifyFields(packet);
}
public ParsedSitePacket(ParsedPacket packet)
{
this.TerminalId = packet.TerminalId;
DevicePackets = new Dictionary <string, ParsedDevicePacket>();
AddDevicePacket(packet);
}