/// <summary>
/// 获取 HttpContextItem
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="key"></param>
/// <returns></returns>
public T GetContextItem <T>(string key)
{
if (string.IsNullOrWhiteSpace(key))
{
return(default(T));
}
object obj;
IRequestScopeContext context = RequestScopeContext.GetCurrent();
if (context != null && context.Items.TryGetValue(key, out obj) && obj != null)
{
return((T)obj);
}
else
{
return(default(T));
}
//var obj = OwinRequestScopeContext.Current.Environment[key];
//if (obj == null)
//{
// return default(T);
//}
//return (T)obj;
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
public void BeginRequest(object context)
{
var environment = System.Web.HttpContext.Current.Request.ServerVariables;
var scopeContext = new RequestScopeContext(environment);
RequestScopeContext.InitCurrent(scopeContext);
}
/// <summary>
///
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary<string, object> environment)
{
var scopeContext = new RequestScopeContext(environment);
RequestScopeContext.Current = scopeContext;
try
{
await next(environment);
}
finally
{
RequestScopeContext.FreeContextSlot();
}
}
/// <summary>
///
/// </summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary <string, object> environment)
{
var scopeContext = new RequestScopeContext(environment);
RequestScopeContext.InitCurrent(scopeContext);
try
{
await next(environment);
}
finally
{
RequestScopeContext.FreeContextSlot();
}
}
/// <summary>
/// 设置 HttpContextItem
/// </summary>
/// <param name="key"></param>
/// <param name="val"></param>
public void SetContextItem(string key, object val)
{
if (string.IsNullOrWhiteSpace(key))
{
return;
}
IRequestScopeContext context = RequestScopeContext.GetCurrent();
if (context == null)
{
return;
}
context.Items[key] = val;
}
/// <summary>
///
/// </summary>
/// <param name="context"></param>
public void EndRequest(object context)
{
RequestScopeContext.FreeContextSlot();
}
