public CommunicationInterfaceHandler(uint id, string name, PlcCommunicator plcCommunicator,
CommunicationInterfacePath pathFile)
: base(id, name)
{
ReferencePosition = 2;
PlcCommunicator = plcCommunicator;
PathFile = pathFile;
_communicationThread = new Thread(CommunicationHandler);
_communicationThread.SetApartmentState(ApartmentState.STA);
_communicationThread.IsBackground = true;
Logger.Log("ID: " + Header.Id + " Communication interface component created");
}
public CommunicationInterfaceComposite InitializeInterface(uint id, CommunicationInterfaceComponent.InterfaceType type, CommunicationInterfacePath pathFile, object sender)
{
var readAreaFound = false;
var writeAreaFound = false;
var readAddress = new Address { ByteAddress = 0, BitAddress = 0, };
var writeAddress = new Address { ByteAddress = 0, BitAddress = 0, };
var readByteOverloaded = false;
var writeByteOverloaded = false;
var interfaceComposite = new CommunicationInterfaceComposite(type.ToString()) { Owner = sender, TypeOfInterface = type };
var reader = new StreamReader(pathFile.Path[id]);
var previousReadType = "";
var previousWriteType = "";
string line;
string[] words;
switch (type)
{
case CommunicationInterfaceComponent.InterfaceType.ReadInterface:
while (true)
{
line = reader.ReadLine();
if (line == null) break;
words = line.Split(';');
if (readAreaFound && words[0] == "#END") break;
if (readAreaFound)
{
var readByteOverloadedAux = readByteOverloaded;
readAddress = CheckRules(previousReadType, words[1], readByteOverloadedAux, readAddress,
out readByteOverloaded);
AddToInterface(interfaceComposite, CommunicationInterfaceFactory.CreateVariable(words[0],
readAddress.ByteAddress, readAddress.BitAddress, StringToVariableType(words[1]),
GetLength(words[1])));
readAddress = CreateNewAddress(readAddress, words[1]);
previousReadType = words[1];
}
if (words[0] == "#READ") readAreaFound = true;
}
if (!readAreaFound)
{
throw new Exception("Read Area not found");
}
break;
case CommunicationInterfaceComponent.InterfaceType.WriteInterface:
while (true)
{
line = reader.ReadLine();
if (line == null) break;
words = line.Split(';');
if (writeAreaFound && words[0] == "#END") break;
if (writeAreaFound)
{
var writeByteOverloadedAux = writeByteOverloaded;
writeAddress = CheckRules(previousWriteType, words[1], writeByteOverloadedAux, writeAddress,
out writeByteOverloaded);
AddToInterface(interfaceComposite, CommunicationInterfaceFactory.CreateVariable(words[0],
writeAddress.ByteAddress, writeAddress.BitAddress, StringToVariableType(words[1]),
GetLength(words[1])));
writeAddress = CreateNewAddress(writeAddress, words[1]);
previousWriteType = words[1];
}
if (words[0] == "#WRITE") writeAreaFound = true;
}
if (!writeAreaFound)
{
throw new Exception("Write Area not found");
}
break;
default:
throw new Exception("Error: Wrong interface type.");
}
return interfaceComposite;
}