PowerToys/Wox.Infrastructure/Storage/BaseStorage.cs
2014-03-23 16:17:41 +08:00

77 lines
2.2 KiB
C#

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Newtonsoft.Json;
namespace Wox.Infrastructure.Storage
{
public abstract class BaseStorage<T> where T : class, new()
{
private string configFolder = Path.Combine(Path.GetDirectoryName(Application.ExecutablePath), "Config");
private string fileSuffix = ".json";
private static object locker = new object();
private static T storage;
protected abstract string ConfigName { get; }
public static T Instance
{
get
{
if (storage == null)
{
lock (locker)
{
if (storage == null)
{
storage = new T();
(storage as BaseStorage<T>).Load();
}
}
}
return storage;
}
}
private void Load()
{
string configPath = Path.Combine(configFolder, ConfigName + fileSuffix);
if (!File.Exists(configPath))
{
FileInfo fileInfo = new FileInfo(configFolder);
if (!fileInfo.Directory.Exists)
{
fileInfo.Directory.Create();
}
File.Create(configPath).Close();
}
string json = File.ReadAllText(configPath);
if (!string.IsNullOrEmpty(json))
{
try
{
storage = JsonConvert.DeserializeObject<T>(json);
}
catch (Exception)
{
//no-op
}
}
}
public void Save()
{
lock (locker)
{
//json is a good choise, readable and flexiable
string configPath = Path.Combine(configFolder, ConfigName + fileSuffix);
string json = JsonConvert.SerializeObject(storage, Formatting.Indented);
File.WriteAllText(configPath, json);
}
}
}
}