// ToDo: public method - it should be protected, web parser user should not know starting unit - it has to be registered & only mehod startparcing should be available
public void ExecuteUnit <TIn, TOut>(TIn handlerInputModel)
{
try
{
if (!workUnits.ContainsKey(Key <TIn, TOut>()))
{
throw new ArgumentException($"Handler for input model '{typeof(TIn).Name}' and output model '{typeof(TOut).Name}' is not registered");
}
var workUnitObject = workUnits[Key <TIn, TOut>()];
var workUnit = workUnitObject as IUnit <TIn>;
if (workUnit == null)
{
throw new Exception("Unexpected type");
}
var workUnitName = workUnit.GetType().Name;
if (ExecutionPath.AlreadyExecuted(workUnitName))
{
throw new Exception("Cycle found during execution");
}
ExecutionPath.Add(workUnitName);
workUnit.ParseAndSelectNext(handlerInputModel);
}
catch (Exception ex)
{
Exception = ex;
}
}
public WebParser()
{
workUnits = new Dictionary <Tuple <Type, Type>, object>();
Result = new TResult();
ExecutionPath = new ExecutionPath();
}