51 lines
2.1 KiB
C#
51 lines
2.1 KiB
C#
|
using AbstractSoftwareInstallationFileImplement.Models;
|
|||
|
|
using System.Xml.Linq;
|
|||
|
|
|
|||
|
|
namespace AbstractSoftwareInstallationFileImplement
|
|||
|
|
{
|
|||
|
|
internal class DataFileSingleton
|
|||
|
|
{
|
|||
|
|
|
|||
|
|
private static DataFileSingleton? instance;
|
|||
|
|
private readonly string SoftwareFileName = "Software.xml";
|
|||
|
|
private readonly string OrderFileName = "Order.xml";
|
|||
|
|
private readonly string PackageFileName = "Package.xml";
|
|||
|
|
public List<Software> Softwares { get; private set; }
|
|||
|
|
public List<Order> Orders { get; private set; }
|
|||
|
|
public List<Package> Packages { get; private set; }
|
|||
|
|
public static DataFileSingleton GetInstance()
|
|||
|
|
{
|
|||
|
|
if (instance == null)
|
|||
|
|
{
|
|||
|
|
instance = new DataFileSingleton();
|
|||
|
|
}
|
|||
|
|
return instance;
|
|||
|
|
}
|
|||
|
|
public void SaveSoftwares() => SaveData(Softwares, SoftwareFileName, "Softwares", x => x.GetXElement);
|
|||
|
|
public void SavePackages() => SaveData(Packages, PackageFileName, "Packages", x => x.GetXElement);
|
|||
|
|
public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
|
|||
|
|
private DataFileSingleton()
|
|||
|
|
{
|
|||
|
|
Softwares = LoadData(SoftwareFileName, "Software", x => Software.Create(x)!)!;
|
|||
|
|
Packages = LoadData(PackageFileName, "Package", x => Package.Create(x)!)!;
|
|||
|
|
Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
|
|||
|
|
}
|
|||
|
|
private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
|
|||
|
|
{
|
|||
|
|
if (File.Exists(filename))
|
|||
|
|
{
|
|||
|
|
return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
|
|||
|
|
}
|
|||
|
|
return new List<T>();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
|
|||
|
|
{
|
|||
|
|
if (data != null)
|
|||
|
|
{
|
|||
|
|
new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|