SUBD_Aleikin/Restaurant/RestaurantBusinessLogic/BusinessLogics/BackUpLogic.cs

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using RestaurantContracts.BindingModels;
using RestaurantContracts.BusinessLogicsContracts;
using RestaurantContracts.StoragesContracts;
using RestaurantDataModels;
using System;
using System.Collections.Generic;
using System.IO.Compression;
using System.Linq;
using System.Reflection;
using System.Runtime.Serialization.Json;
using System.Text;
using System.Threading.Tasks;
namespace RestaurantBusinessLogic.BusinessLogics
{
public class BackUpLogic : IBackUpLogic
{
private readonly IBackUpInfo _backUpInfo;
public BackUpLogic(IBackUpInfo backUpInfo)
{
_backUpInfo = backUpInfo;
}
public void CreateBackUp(BackUpBindingModel model)
{
if (_backUpInfo == null)
{
return;
}
try
{
var dirInfo = new DirectoryInfo(model.FolderName);
if (dirInfo.Exists)
{
foreach (var file in dirInfo.GetFiles())
{
file.Delete();
}
}
string fileName = $"{model.FolderName}.zip";
if (File.Exists(fileName))
{
File.Delete(fileName);
}
var typeIId = typeof(IId);
var assembly = typeIId.Assembly;
if (assembly == null)
{
throw new ArgumentNullException("Сборка не найдена", nameof(assembly));
}
var types = assembly.GetTypes();
var method = GetType().GetMethod("SaveToFile", BindingFlags.NonPublic | BindingFlags.Instance);
foreach (var type in types)
{
if (type.IsInterface && type.GetInterface(typeIId.Name) != null)
{
var modelType = _backUpInfo.GetTypeByModelInterface(type.Name);
if (modelType == null)
{
throw new InvalidOperationException($"Не найден класс-модель для {type.Name}");
}
// вызываем метод на выполнение
method?.MakeGenericMethod(modelType).Invoke(this, new object[] { model.FolderName });
}
}
// архивируем
ZipFile.CreateFromDirectory(model.FolderName, fileName);
// удаляем папку
dirInfo.Delete(true);
}
catch (Exception)
{
throw;
}
}
private void SaveToFile<T>(string folderName) where T : class, new()
{
var records = _backUpInfo.GetList<T>();
if (records == null)
{
return;
}
var jsonFormatter = new DataContractJsonSerializer(typeof(List<T>));
using var fs = new FileStream(string.Format("{0}/{1}.json", folderName, typeof(T).Name), FileMode.OpenOrCreate);
jsonFormatter.WriteObject(fs, records);
}
}
}