public bool ProcessHeaders(string queryId)
{
NameValueCollection headers = GetHeaders();
String language = null, theme = null, etag = null;
if (headers != null)
{
language = headers["GeneXus-Language"];
theme = headers["GeneXus-Theme"];
if (!IsPost())
{
etag = headers["If-Modified-Since"];
}
}
if (!string.IsNullOrEmpty(language))
{
context.SetLanguage(language);
}
if (!string.IsNullOrEmpty(theme))
{
context.SetTheme(theme);
}
DateTime dt = HTMLDateToDatetime(etag);
DateTime newDt;
DataUpdateStatus status;
if (etag == null)
{
status = DataUpdateStatus.Invalid;
GxSmartCacheProvider.CheckDataStatus(queryId, dt, out newDt);
}
else
{
status = GxSmartCacheProvider.CheckDataStatus(queryId, dt, out newDt);
}
AddHeader("Last-Modified", dateTimeToHTMLDate(newDt));
if (status == DataUpdateStatus.UpToDate)
{
SetStatusCode(HttpStatusCode.NotModified);
return(false);
}
return(true);
}
public static void InvalidateCacheItem(string item)
{
GxSmartCacheProvider.Invalidate(item);
}
public static void InvalidateCache()
{
GxSmartCacheProvider.InvalidateAll();
}