public static bool CachResult(ExcelPackage workbook, string filename)
{
string cacheKey = System.Web.HttpContext.Current.User.Identity.Name + System.Web.HttpContext.Current.Request.RawUrl;
var OutputCacheManager = new OutputCacheManager();
CacheItem item = OutputCacheManager.GetItem(cacheKey);
if (item != null && item.ContentType == "StartRequest")
{
FileStream fileStream = new FileStream(FilePath(filename), FileMode.Create, FileAccess.Write);
workbook.SaveAs(fileStream);
fileStream.Close();
item.Content = filename;
item.ContentType = "FinishRequest";
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
return(false);
}
else
{
FileStream fileStream = new FileStream(FilePath(filename), FileMode.Create, FileAccess.Write);
workbook.SaveAs(fileStream);
fileStream.Close();
item.Content = filename;
item.ContentType = "FinishRequest";
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
return(true);
}
}
public void OnException(ExceptionContext filterContext)
{
string cacheKey = System.Web.HttpContext.Current.User.Identity.Name + System.Web.HttpContext.Current.Request.RawUrl;
var OutputCacheManager = new OutputCacheManager();
CacheItem item = OutputCacheManager.GetItem(cacheKey);
if (item != null)
{
item.ContentType = "RequestError";
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
}
}
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
if (string.IsNullOrEmpty(System.Web.HttpContext.Current.User.Identity.Name))
{
ContentResult result = new ContentResult {
Content = "", ContentType = ""
};
filterContext.Result = result;
}
string cacheKey = System.Web.HttpContext.Current.User.Identity.Name + System.Web.HttpContext.Current.Request.RawUrl;
if (!string.IsNullOrEmpty(cacheKey))
{
var OutputCacheManager = new OutputCacheManager();
CacheItem item = OutputCacheManager.GetItem(cacheKey);
if (item == null)
{
item = new CacheItem {
Content = "", ContentType = "StartRequest"
};
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
}
else if (item.ContentType == "RequestError" || (option == 1 && item.ContentType == "FinishRequest"))
{
item.Content = "";
item.ContentType = "StartRequest";
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
}
else if (item.ContentType == "FinishRequest")
{
FilePathResult result = new FilePathResult(ExportCache.FilePath(item.Content), "application/vnd.ms-excel");
result.FileDownloadName = item.Content;
filterContext.Result = result;
}
else
{
int current = 0;
if (!string.IsNullOrEmpty(item.Content))
{
current = int.Parse(item.Content) + 1;
}
item.Content = current.ToString();
OutputCacheManager.AddItem(cacheKey, item, DateTime.UtcNow.AddSeconds(1800));
while (item.ContentType == "StartRequest" && item.Content == current.ToString())
{
System.Threading.Thread.Sleep(5000);
item = OutputCacheManager.GetItem(cacheKey);
}
if (item.ContentType == "FinishRequest")
{
FilePathResult result = new FilePathResult(ExportCache.FilePath(item.Content), "application/vnd.ms-excel");
result.FileDownloadName = item.Content;
filterContext.Result = result;
}
else if (item.ContentType == "RequestError")
{
ContentResult result = new ContentResult
{
Content = "Error when excute request",
ContentType = item.ContentType
};
filterContext.Result = result;
}
else
{
ContentResult result = new ContentResult
{
Content = "",
ContentType = item.ContentType
};
filterContext.Result = result;
}
}
}
}
