public bool EndPersist(IAsyncResult asyncResult)
{
asyncResult.AsyncWaitHandle.WaitOne();
CacheAsyncResult cacheAsyncResult = asyncResult as CacheAsyncResult;
if (cacheAsyncResult != null && cacheAsyncResult.Result != null)
{
if (!this.cache.ContainsKey(cacheAsyncResult.FragmentUrl))
{
Stream memoryStream = new MemoryStream();
CacheResponse cacheResponse = cacheAsyncResult.Result as CacheResponse;
if (cacheResponse != null && cacheResponse.StatusCode == HttpStatusCode.OK)
{
cacheResponse.WriteTo(memoryStream);
memoryStream.Position = 0;
CacheItem cacheItem = new CacheItem
{
CachedValue = memoryStream,
Date = DateTime.Now
};
this.cache.Add(cacheAsyncResult.FragmentUrl, cacheItem);
this.OnCacheUpdated(cacheAsyncResult.FragmentUrl);
return(true);
}
}
}
return(false);
}
public IAsyncResult BeginRetrieve(CacheRequest request, AsyncCallback callback, object state)
{
CacheResponse response = null;
CacheAsyncResult cacheAsyncResult = new CacheAsyncResult {
FragmentUrl = request.CanonicalUri.ToString()
};
cacheAsyncResult.Complete(response, true);
return(cacheAsyncResult);
}
public IAsyncResult BeginPersist(CacheRequest request, CacheResponse response, AsyncCallback callback, object state)
{
CacheAsyncResult cacheAsyncResult = new CacheAsyncResult();
if (!this.cache.ContainsKey(request.CanonicalUri.ToString()) && !request.CanonicalUri.ToString().ToUpperInvariant().EndsWith(".ISML/MANIFEST") && !request.CanonicalUri.ToString().ToUpperInvariant().EndsWith(".ISM/MANIFEST"))
{
cacheAsyncResult.FragmentUrl = request.CanonicalUri.ToString();
cacheAsyncResult.Complete(response, true);
return(cacheAsyncResult);
}
cacheAsyncResult.Complete(null, true);
return(cacheAsyncResult);
}
public CacheResponse EndRetrieve(IAsyncResult ar)
{
CacheResponse primaryResponse = null;
if (this.primary != null)
{
primaryResponse = this.primary.EndRetrieve(ar);
}
if (this.secondary != null)
{
CacheResponse secondaryResponse = this.secondary.EndRetrieve(ar);
if ((secondaryResponse == null || secondaryResponse.ContentLength == 0) && (primaryResponse != null && primaryResponse.ContentLength > 0))
{
CacheAsyncResult cacheAsyncResult = ar as CacheAsyncResult;
if (cacheAsyncResult != null)
{
cacheAsyncResult.Result = primaryResponse;
this.secondary.EndPersist(cacheAsyncResult);
}
}
if ((primaryResponse == null || primaryResponse.ContentLength == 0) && (secondaryResponse != null && secondaryResponse.ContentLength > 0))
{
CacheAsyncResult cacheAsyncResult = ar as CacheAsyncResult;
if (cacheAsyncResult != null && this.primary != null)
{
cacheAsyncResult.Result = secondaryResponse;
this.primary.EndPersist(cacheAsyncResult);
}
primaryResponse = secondaryResponse;
}
}
return(primaryResponse);
}
public bool EndPersist(IAsyncResult asyncResult)
{
asyncResult.AsyncWaitHandle.WaitOne();
CacheAsyncResult cacheAsyncResult = asyncResult as CacheAsyncResult;
if (cacheAsyncResult != null && cacheAsyncResult.Result != null)
{
CacheResponse cacheResponse = cacheAsyncResult.Result as CacheResponse;
if (cacheResponse != null && cacheResponse.Response != null && !this.cache.ContainsKey(cacheAsyncResult.FragmentUrl) && cacheResponse.StatusCode == HttpStatusCode.OK)
{
string fileGuid = Guid.NewGuid().ToString();
using (MemoryStream stream = new MemoryStream())
{
cacheResponse.WriteTo(stream);
stream.Position = 0;
bool result = this.persitenceService.Persist(fileGuid, stream);
if (result)
{
CacheItem cacheItem = new CacheItem
{
CachedValue = fileGuid,
Date = DateTime.Now
};
this.cache.Add(cacheAsyncResult.FragmentUrl, cacheItem);
this.OnCacheUpdated(cacheAsyncResult.FragmentUrl);
this.persitenceService.AddApplicationSettings(cacheAsyncResult.FragmentUrl, cacheItem);
return(true);
}
}
}
}
return(false);
}
public CacheResponse EndRetrieve(IAsyncResult asyncResult)
{
asyncResult.AsyncWaitHandle.WaitOne();
CacheAsyncResult cacheAsyncResult = asyncResult as CacheAsyncResult;
if (cacheAsyncResult != null && this.cache.ContainsKey(cacheAsyncResult.FragmentUrl) && !cacheAsyncResult.FragmentUrl.ToUpperInvariant().EndsWith(".ISML/MANIFEST") && !cacheAsyncResult.FragmentUrl.ToUpperInvariant().EndsWith(".ISM/MANIFEST"))
{
string filename = (string)this.cache[cacheAsyncResult.FragmentUrl].CachedValue;
Stream stream = this.persitenceService.Retrieve(filename);
if (this.cache[cacheAsyncResult.FragmentUrl].AvoidDeserialization)
{
return(new CacheResponse(stream.Length, "text/xml", null, stream, HttpStatusCode.OK, "OK", DateTime.Now));
}
return(new CacheResponse(stream, true));
}
return(new CacheResponse(0, null, null, null, HttpStatusCode.NotFound, "Not Found", DateTime.Now));
}
public CacheResponse EndRetrieve(IAsyncResult asyncResult)
{
asyncResult.AsyncWaitHandle.WaitOne();
CacheAsyncResult cacheAsyncResult = asyncResult as CacheAsyncResult;
if (cacheAsyncResult != null && this.cache.ContainsKey(cacheAsyncResult.FragmentUrl) && !cacheAsyncResult.FragmentUrl.ToUpperInvariant().EndsWith(".ISML/MANIFEST") && !cacheAsyncResult.FragmentUrl.ToUpperInvariant().EndsWith(".ISM/MANIFEST"))
{
Stream stream = (Stream)this.cache[cacheAsyncResult.FragmentUrl].CachedValue;
stream.Position = 0;
if (this.cache[cacheAsyncResult.FragmentUrl].AvoidDeserialization)
{
return(new CacheResponse(stream.Length, "text/xml", null, stream, HttpStatusCode.OK, "OK", DateTime.Now));
}
else
{
return(new CacheResponse(stream, true));
}
}
return(new CacheResponse(0, null, null, null, System.Net.HttpStatusCode.NotFound, "Not Found", DateTime.Now, false));
}
