Реализован класс DataFileSingleton
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@ -0,0 +1,50 @@
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using SecuritySystemFileImplement.Models;
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using System.Xml.Linq;
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namespace SecuritySystemFileImplement
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{
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internal class DataFileSingleton
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{
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private static DataFileSingleton? instance;
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private readonly string ComponentFileName = "Component.xml";
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private readonly string OrderFileName = "Order.xml";
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private readonly string SecureFileName = "Secure.xml";
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public List<Component> Components { get; private set; }
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public List<Order> Orders { get; private set; }
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public List<Secure> Secures { get; private set; }
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public static DataFileSingleton GetInstance()
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{
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if (instance == null)
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{
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instance = new DataFileSingleton();
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}
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return instance;
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}
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public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
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public void SaveSecures() => SaveData(Secures, SecureFileName, "Secures", x => x.GetXElement);
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public void SaveOrders() { }
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private DataFileSingleton()
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{
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Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
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Secures = LoadData(SecureFileName, "Secure", x => Secure.Create(x)!)!;
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Orders = new List<Order>();
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}
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private static List<T>? LoadData<T>(string filename, string xmlNodeName,
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Func<XElement, T> selectFunction)
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{
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if (File.Exists(filename))
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{
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return XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
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}
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return new List<T>();
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}
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private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
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{
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if (data != null)
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{
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new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
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}
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}
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}
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}
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@ -1,4 +1,5 @@
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using SecuritySystemContracts.BindingModels;
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using SecuritySystemContracts.ViewModels;
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using SecuritySystemDataModels.Models;
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using System.Xml.Linq;
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@ -10,8 +11,7 @@ namespace SecuritySystemFileImplement.Models
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public string SecureName { get; private set; } = string.Empty;
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public double Price { get; private set; }
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public Dictionary<int, int> Components { get; private set; } = new();
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private Dictionary<int, (IComponentModel, int)>? _secureComponents =
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null;
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private Dictionary<int, (IComponentModel, int)>? _secureComponents = null;
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public Dictionary<int, (IComponentModel, int)> SecureComponents
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{
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get
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@ -19,9 +19,8 @@ namespace SecuritySystemFileImplement.Models
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if (_secureComponents == null)
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{
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var source = DataFileSingleton.GetInstance();
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_secureComponents = Components.ToDictionary(x => x.Key, y =>
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((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
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y.Value));
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_secureComponents = Components.ToDictionary(x => x.Key,
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y => ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!, y.Value));
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}
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return _secureComponents;
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}
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@ -37,8 +36,7 @@ namespace SecuritySystemFileImplement.Models
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Id = model.Id,
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SecureName = model.SecureName,
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Price = model.Price,
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Components = model.SecureComponents.ToDictionary(x => x.Key, x
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=> x.Value.Item2)
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Components = model.SecureComponents.ToDictionary(x => x.Key, x => x.Value.Item2)
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};
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}
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public static Secure? Create(XElement element)
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@ -52,11 +50,7 @@ namespace SecuritySystemFileImplement.Models
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Id = Convert.ToInt32(element.Attribute("Id")!.Value),
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SecureName = element.Element("SecureName")!.Value,
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Price = Convert.ToDouble(element.Element("Price")!.Value),
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Components =
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element.Element("SecureComponents")!.Elements("SecureComponent")
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.ToDictionary(x =>
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Convert.ToInt32(x.Element("Key")?.Value), x =>
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Convert.ToInt32(x.Element("Value")?.Value))
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Components = element.Element("SecureComponents")!.Elements("SecureComponent").ToDictionary(x => Convert.ToInt32(x.Element("Key")?.Value), x => Convert.ToInt32(x.Element("Value")?.Value))
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};
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}
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public void Update(SecureBindingModel model)
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@ -67,8 +61,7 @@ namespace SecuritySystemFileImplement.Models
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}
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SecureName = model.SecureName;
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Price = model.Price;
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Components = model.SecureComponents.ToDictionary(x => x.Key, x =>
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x.Value.Item2);
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Components = model.SecureComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
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_secureComponents = null;
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}
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public SecureViewModel GetViewModel => new()
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