public ApplicationParameters(ApplicationParametersModel model, String[] args, Func <IList <AbstractApplicationParameter>, IList <ValidationError> > additionalValidator = null)
{
this._model = model;
var list = new List <AbstractApplicationParameter>(model.Parameters.Count);
Int32 idx = 0;
var argsList = args.ToList();
var argsListReadOnly = new ReadOnlyCollection <String>(argsList);
var errors = new List <ValidationError>();
var i = 0;
var curParamCount = 0;
var latestAddedParamModelIdx = -1;
while (i < model.Parameters.Count && idx < argsList.Count)
{
var pModel = model.Parameters[i];
var instance = ProcessParameterModel(pModel, model, argsList, argsListReadOnly, errors, ref idx);
if (instance != null)
{
++curParamCount;
}
var noInstanceOrTooBigIndex = instance == null || idx >= argsList.Count;
if (noInstanceOrTooBigIndex || (pModel.MaxOccurrences >= 0 && curParamCount > pModel.MaxOccurrences))
{
++i; // Move to next parameter
if (noInstanceOrTooBigIndex && curParamCount < pModel.MinOccurrences)
{
errors.Add(new ValidationError(null, "Parameter " + pModel.Name + " occurred too few times."));
}
else if (!noInstanceOrTooBigIndex)
{
errors.Add(new ValidationError(null, "Parameter " + pModel.Name + " occurred too many times."));
}
else if (instance != null)
{
list.Add(instance);
}
curParamCount = 0;
}
else
{
list.Add(instance);
latestAddedParamModelIdx = i;
}
}
++latestAddedParamModelIdx;
if (latestAddedParamModelIdx < model.Parameters.Count)
{
errors.AddRange(model.Parameters.Skip(i).Where(p => p.MinOccurrences > 0).Select(p => new ValidationError(null, "Parameter " + p.Name + " occurred too few times.")));
}
this._parameters = new ReadOnlyCollection <AbstractApplicationParameter>(list);
if (additionalValidator != null)
{
var aErrors = additionalValidator(this._parameters);
if (aErrors != null)
{
errors.AddRange(aErrors);
}
}
this._errors = new ReadOnlyCollection <ValidationError>(errors);
}
private static AbstractApplicationParameter ProcessParameterModel(ApplicationParameterModel p, ApplicationParametersModel paramsModel, IList <String> args, IList <String> argsListReadOnly, IList <ValidationError> errors, ref Int32 idx)
{
var arg = args[idx];
if (p.Expandable)
{
var eArgs = TryExpandArgumentsRecursively(paramsModel.ParameterParser, arg);
if (eArgs != null)
{
// Expanded successfully
args.RemoveAt(idx);
for (var i = eArgs.Count - 1; i >= 0; --i)
{
args.Insert(idx, eArgs[i]);
}
// Read-only list should reflect the changed list
}
}
AbstractApplicationParameter pInstance = null;
if (idx < args.Count)
{
arg = args[idx];
foreach (var optionModel in p.PossibleOptions)
{
String on, ov, errorMsg;
Object ovt;
var oldIdx = idx;
idx += paramsModel.ParameterParser.TryParseOption(argsListReadOnly, idx, optionModel, out on, out ov, out ovt, out errorMsg);
if (idx > oldIdx)
{
pInstance = new ApplicationOptionParameter(p, optionModel, on, ov, ovt);
if (errorMsg != null)
{
errors.Add(new ValidationError(on, errorMsg));
}
break;
}
}
if (pInstance == null && p.CanBeNonOption)
{
pInstance = new ApplicationValueParameter(p, arg);
idx += 1;
}
}
return(pInstance);
}
