public async Task<ActionResult> PopulateCache() {
HttpResponseMessage result = await new HttpClient().GetAsync("http://apress.com");
long? data = result.Content.Headers.ContentLength;
//DateTime expiryTime = DateTime.Now.AddSeconds(30);
//HttpContext.Cache.Insert("pageLength", data, null, expiryTime, Cache.NoSlidingExpiration);
// TimeSpan idleDuration = new TimeSpan(0, 0, 30);
//HttpContext.Cache.Insert("pageLength", data, null, Cache.NoAbsoluteExpiration, idleDuration);
SelfExpiringData<long?> seData = new SelfExpiringData<long?>(data, 3);
//CacheDependency fileDep = new CacheDependency(Request.MapPath("~/data.txt"));
//AggregateCacheDependency aggDep = new AggregateCacheDependency();
//aggDep.Add(seData, fileDep);
// HttpContext.Cache.Insert("pageLength", seData, seData, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration,
// CacheItemPriority.Normal, HandleRemovalNotification);
HttpContext.Cache.Insert("pageLength", seData, seData,
Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, HandleUpdateNotification);
//DateTime timestamp = DateTime.Now;
//CacheDependency timestampDependency = new CacheDependency(null, new[] { "pageLength" });
//HttpContext.Cache.Insert("pageTimestamp", timestamp, timestampDependency);
return RedirectToAction("Index");
}
public ActionResult Index()
{
SelfExpiringData <long?> seData =
(SelfExpiringData <long?>)HttpContext.Cache["pageLength"];
return(View(seData == null ? null : seData.Value));
}
public async Task <ActionResult> PopulateCache()
{
HttpResponseMessage result = await new HttpClient().GetAsync("http://apress.com");
long?data = result.Content.Headers.ContentLength;
SelfExpiringData <long?> seData = new SelfExpiringData <long?>(data, 3);
HttpContext.Cache.Insert("pageLength", seData, seData);
return(RedirectToAction("Index"));
}
private void HandleUpdateNotification(string key, CacheItemUpdateReason reason, out object expensiveObject, out CacheDependency dependency,
out DateTime absoluteExpiration, out TimeSpan slidingExpiration) {
System.Diagnostics.Debug.WriteLine("Item {0} removed ({1})", key, Enum.GetName(typeof(CacheItemUpdateReason), reason));
expensiveObject = dependency = new SelfExpiringData<long?>(GetData(false).Result, 3);
absoluteExpiration = Cache.NoAbsoluteExpiration;
slidingExpiration = Cache.NoSlidingExpiration;
}
public async Task<ActionResult> PopulateCache() {
HttpResponseMessage result
= await new HttpClient().GetAsync("http://apress.com");
long? data = result.Content.Headers.ContentLength;
SelfExpiringData<long?> seData = new SelfExpiringData<long?>(data, 3);
HttpContext.Cache.Insert("pageLength", seData, seData,
Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration,
HandleNotification);
return RedirectToAction("Index");
}
public async Task <ActionResult> PopulateCache()
{
HttpResponseMessage result = await new HttpClient().GetAsync("http://apress.com");
long?data = result.Content.Headers.ContentLength;
SelfExpiringData <long?> seData = new SelfExpiringData <long?>(data, 3);
HttpContext.Cache.Insert("pageLength", seData, seData, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration,
CacheItemPriority.Normal, HandleNotification);
return(RedirectToAction("Index"));
}
public async Task <ActionResult> PopulateCache()
{
HttpResponseMessage result = await new HttpClient().GetAsync("http://apress.com");
long?data = result.Content.Headers.ContentLength;
SelfExpiringData <long?> seData = new SelfExpiringData <long?>(data, 3);
CacheDependency fileDep = new CacheDependency(Request.MapPath("~/data.txt"));
AggregateCacheDependency aggDep = new AggregateCacheDependency();
aggDep.Add(seData, fileDep);
HttpContext.Cache.Insert("pageLength", seData, aggDep);
return(RedirectToAction("Index"));
}
private void HandleNotification(string key,
CacheItemUpdateReason reason,
out object data,
out CacheDependency dependency,
out DateTime absoluteExpiry,
out TimeSpan slidingExpiry)
{
System.Diagnostics.Debug.WriteLine("Item {0} removed. ({1})", key, Enum.GetName(typeof(CacheItemRemovedReason), reason));
data = dependency =
new SelfExpiringData <long?>(GetData(false).Result, 3);
slidingExpiry = Cache.NoSlidingExpiration;
absoluteExpiry = Cache.NoAbsoluteExpiration;
}
