public IOperation GetOperation()
{
decimal firstNumber = default(decimal);
decimal secondNumber = default(decimal);
string operatorValue;
ConsoleManager.GetParameter <decimal>(out firstNumber, ConsoleMessages.InsertFirstNumber);
ConsoleManager.GetParameter <decimal>(out secondNumber, ConsoleMessages.InsertSecondNumber);
ConsoleManager.GetParameter <string>(
out operatorValue,
string.Format(ConsoleMessages.InsertOperator, OperatorSymbols.GetOperators()),
new OperatorValidator());
return(OperationCreator.Create(firstNumber, secondNumber, operatorValue));
}
public IOperation GetOperation()
{
string readAllText = FileWrapper.ReadAllText(this.Path);
if (readAllText == null)
{
throw new InvalidOperationException("readAllText");
}
string[] parameters = readAllText.Split(new char[] { '\r', '\n' },
StringSplitOptions.RemoveEmptyEntries);
if (parameters.Length != 3)
{
throw new InvalidOperationException(
ConsoleMessages.InvalidFile);
}
decimal firstNumber = this.GetParameter <decimal>(parameters[0]);
decimal secondNumber = this.GetParameter <decimal>(parameters[1]);
string operatorValue = this.GetParameter <string>(parameters[2], new OperatorValidator());
return(OperationCreator.Create(firstNumber, secondNumber, operatorValue));
}