/// <summary>
/// Append product specific data to already existing the xml file
/// The existing xml file contains generic product data that is common for every product in the store
/// </summary>
/// <param name="xElement"></param>
/// <param name="columns"></param>
/// <param name="retrieveProductTypeFromName"></param>
/// <exception cref="ArgumentOutOfRangeException"></exception>
private static void AddProductSpecificData(XContainer xElement, IReadOnlyList <string> columns,
CsvProductTypes retrieveProductTypeFromName)
{
var specificProduct = xElement
.Elements("Item")
.SingleOrDefault(x => x.Element("ProductID")?.Value == columns[(int)CsvProductItems.Id]);
switch (retrieveProductTypeFromName)
{
case CsvProductTypes.Music:
specificProduct?.Add(new XElement("Artist", columns[(int)CsvMusicItems.Artist]),
new XElement("PlayTime", columns[(int)CsvMusicItems.PlayTime]));
break;
case CsvProductTypes.Book:
specificProduct?.Add(new XElement("Author", columns[(int)CsvBookItems.Author]),
new XElement("ISBN", columns[(int)CsvBookItems.Isbn]),
new XElement("Pages", columns[(int)CsvBookItems.Pages]));
break;
case CsvProductTypes.Game:
specificProduct?.Add(new XElement("AgeRestriction", columns[(int)CsvGameItems.AgeRestriction]));
break;
default:
throw new ArgumentOutOfRangeException(nameof(retrieveProductTypeFromName),
retrieveProductTypeFromName, null);
}
}
/// <summary>
/// Method that iterates over each csv-file
/// </summary>
/// <param name="xElement"></param>
/// <param name="lines"></param>
/// <param name="productType"></param>
/// <returns></returns>
private static void ConvertCsvToXml(XContainer xElement, IEnumerable <string> lines,
CsvProductTypes productType)
{
// Skip the first line that contains the headers
foreach (var line in lines.Skip(1))
{
var columns = line.Split(',');
AddGenericXmlData(xElement, columns);
AddProductSpecificData(xElement, columns, productType);
}
}