// performs computation results serialization to specified *.xml file
public static bool SaveToXML(string fileName, OutputData data)
{
bool serializationResult = true;
var writer = new XmlSerializer(typeof(OutputData));
// deleting all schema info from root tag
XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
ns.Add("", "");
FileStream fs = null;
try
{
fs = new FileStream(fileName, FileMode.Create);
}
catch (IOException exc)
{
Interface.DisplayMessage("Error in OutputData->SaveToXML: Unable to open file \"" +
fileName + "\"", ConsoleColor.Yellow, ConsoleColor.Red);
Interface.DisplayMessage("Description: " + exc, ConsoleColor.Yellow, ConsoleColor.Blue);
return(false);
}
var stream = new StreamWriter(fs, Encoding.UTF8);
try
{
writer.Serialize(stream, data, ns);
stream.Flush();
}
catch (IOException exc)
{
Interface.DisplayMessage("Error in OutputData->SaveToXML: I/O error while " +
"serializing data to file \"" + fileName + "\"",
ConsoleColor.Yellow, ConsoleColor.Red);
Interface.DisplayMessage("Description: " + exc, ConsoleColor.Yellow,
ConsoleColor.Blue);
serializationResult = false;
}
finally
{
stream.Close();
}
return(serializationResult);
}
public static void Main(string[] args)
{
Console.Title = "Calculator via XML";
// checking command line arguments number
if (args.Length != 2)
{
Console.WriteLine("Illegal arguments number\nUsage: Calculator.exe " +
"<InputFileName.xml> <OutputFileName.xml>");
return;
}
// creating calculator instance
Computation calc = new Computation();
// reading operand and operation sets from input *.xml
InputData input = InputData.ParseXML(args[0]);
if (input == null)
{
return;
}
// creating storage for operation results saving
OutputData output = new OutputData();
OperandElement result;
// performing computation
for (int i = 0; i < input.InputElements.Count; i += 3)
{
result = calc.Compute((OperandElement)input.InputElements[i],
(OperationElement)input.InputElements[i + 1],
(OperandElement)input.InputElements[i + 2]);
output.OutputElements.Add(result);
}
// saving computation results to *.xml
OutputData.SaveToXML(args[1], output);
}