PIbd-22_Smirnov_A.A._Securi.../SecuritySystem/SecuritySystemFileImplement/DataFileSingleton.cs
2024-05-08 09:27:00 +04:00

89 lines
2.7 KiB
C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Xml.Linq;
using SecuritySystemFileImplement.Models;
namespace SecuritySystemFileImplement
{
public class DataFileSingleton
{
private static DataFileSingleton? instance;
private readonly string SensorFileName = "Sensor.xml";
private readonly string OrderFileName = "Order.xml";
private readonly string SecureFileName = "Secure.xml";
private readonly string ClientFileName = "Client.xml";
private readonly string ImplementerFileName = "Implementer.xml";
private readonly string MessageFileName = "Message.xml";
public List<Sensor> Sensors { get; private set; }
public List<Order> Orders { get; private set; }
public List<Secure> Secures { get; private set; }
public List<Client> Clients { get; private set; }
public List<Implementer> Implementers { get; private set; }
public List<MessageInfo> Messages { get; private set; }
public static DataFileSingleton GetInstance()
{
if (instance == null)
{
instance = new DataFileSingleton();
}
return instance;
}
public void SaveSensors() => SaveData(Sensors, SensorFileName, "Sensors", x => x.GetXElement);
public void SaveSecures() => SaveData(Secures, SecureFileName, "Secures", x => x.GetXElement);
public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
public void SaveClients() => SaveData(Clients, ClientFileName, "Clients", x => x.GetXElement);
public void SaveImplementers() => SaveData(Implementers, ImplementerFileName, "Implementers", x => x.GetXElement);
public void SaveMessages() => SaveData(Messages, MessageFileName, "Messages", x => x.GetXElement);
private DataFileSingleton()
{
Sensors = LoadData(SensorFileName, "Sensor", x => Sensor.Create(x)!)!;
Secures = LoadData(SecureFileName, "Secure", x => Secure.Create(x)!)!;
Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
Clients = LoadData(ClientFileName, "Client", x => Client.Create(x)!)!;
Implementers = LoadData(ImplementerFileName, "Implementer", x => Implementer.Create(x)!)!;
Messages = LoadData(MessageFileName, "Messages", x => MessageInfo.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);
}
}
}
}