/// <summary>
/// 获取上下文所有key
/// </summary>
private static string[] getContextKeys()
{
string keys = ContextStorage.Get <string>(contextKeys);
if (!string.IsNullOrEmpty(keys))
{
return(keys.Split(','));
}
return(null);
}
/// <summary>
/// 是否制定类型上下文
/// </summary>
/// <param name="contextType"></param>
public static void Dispose(Type contextType)
{
if (contextType == null)
{
throw new ArgumentNullException("对象不能为空");
}
var tcontext = ContextStorage.Get <IDisposable>(contextType.ToString() + suffix);
if (tcontext != null)
{
tcontext.Dispose();
Debug.WriteLine("数据上下文释放【time:" + DateTime.Now.Ticks + "），HashCode:" + tcontext.GetHashCode() + "】");
}
}
/// <summary>
/// Author:caoyi
/// 是否一次请求的所有创建的上下文
/// </summary>
public static void Dispose()
{
string[] allKeys = getContextKeys();
if (allKeys != null && allKeys.Length > 0)
{
foreach (string key in allKeys)
{
IDisposable t = ContextStorage.Get <IDisposable>(key);
if (t != null)
{
t.Dispose();
}
// Debug.WriteLine("数据上下文释放【time:" + DateTime.Now.Ticks + "），HashCode:" + t.GetHashCode() + "】");
}
}
}
/// <summary>
/// Author:caoyi
/// 在一个请求上下文中创建一次EF上下文实例
/// </summary>
/// <typeparam name="TContext">上下文对象</typeparam>
/// <param name="context">上下文实例</param>
/// <returns></returns>
public static TContext Instance <TContext>() where TContext
: class, IDisposable, new()
{
string key = typeof(TContext).ToString() + suffix;
var item = ContextStorage.Get <TContext>(key);
if (item == null)
{
var t = new TContext();
//Debug.WriteLine("数据上下文创建【time:" + DateTime.Now.Ticks + "），HashCode:" + t.GetHashCode() + "】");
ContextStorage.Add(key, t);
addContextKey(key);
return(t);
}
return(item);
}
/// <summary>
/// 存储上下文key
/// </summary>
/// <param name="key"></param>
private static void addContextKey(string key)
{
if (string.IsNullOrEmpty(key))
{
throw new ArgumentNullException("key 不能为 空");
}
string keys = ContextStorage.Get <string>(contextKeys);
if (string.IsNullOrEmpty(keys))
{
keys = key;
}
else
{
keys += "," + key;
}
ContextStorage.Set(contextKeys, keys);
}