/// <summary>
/// The entry point of program calls request handler.
/// </summary>
/// <param name="args">Names XML</param>
/// <returns>0 - norm start</returns>
/// <returns>1 -Error</returns>
static int Main(string[] args)
{
try
{
if (args.Length < 2)
{
throw new Exception("Program hasn't names of XML files.");
}
// Dictionary string name of types -> list of type autos.
Dictionary <string, IEnumerable <Auto> > dictionaryOfAutoTypes = new Dictionary <string, IEnumerable <Auto> >
{
[args[0].ToLower()] = CarGetter.GetCarGetter(args[0]).Cars,
[args[1].ToLower()] = TruckGetter.GetTruckGetter(args[1]).Trucks
};
// Dictionary string name of commands -> commands.
Dictionary <string, ICommand> dictionaryOfAutoCommands = new Dictionary <string, ICommand>
{
["count types"] = new NumberAutoTypesCommand(new NumberAutoTypes(dictionaryOfAutoTypes)),
["count all"] = new NumberAllAutosCommand(new NumberAllAutos(dictionaryOfAutoTypes)),
["average price"] = new AverageAutoPriceCommand(new AverageAutoPrice(dictionaryOfAutoTypes)),
["average price "] = new AverageTypePriceCommand(new AverageTypePrice(dictionaryOfAutoTypes))
};
RequestHandler requestHandler = new RequestHandler();
requestHandler.HandleRequest(dictionaryOfAutoCommands);
return(0);
}
catch (Exception e)
{
Console.WriteLine($"Error: {e.Message}.");
return(1);
}
}
/// <summary>
/// Returns object of class.
/// </summary>
/// <returns>object of AutoGetter</returns>
public static CarGetter GetCarGetter(string name)
{
if (carGetter == null)
{
carGetter = new CarGetter(name);
}
return(carGetter);
}