private Task <HttpResponseMessage> HandleSendAndContinuationForPutPatch(CacheKey cacheKey, HttpRequestMessage request,
System.Threading.CancellationToken cancellationToken)
{
return(base.SendAsync(request, cancellationToken)
.ContinueWith(
task =>
{
var serverResponse = task.Result;
if (serverResponse.IsSuccessStatusCode)
{
// ensure no NULL dates
if (serverResponse.Headers.Date == null)
{
serverResponse.Headers.Date = DateTimeOffset.UtcNow;
}
// should we clear?
if ((_enableClearRelatedResourceRepresentationsAfterPut && request.Method == HttpMethod.Put)
||
(_enableClearRelatedResourceRepresentationsAfterPatch && request.Method.Method.ToLower() == "patch"))
{
// clear related resources
//
// - remove resource with cachekey. This must be done, as there's no
// guarantee the new response is cacheable.
//
// - look for resources in cache that start with
// the cachekey + "?" for querystring.
_cacheStore.RemoveAsync(cacheKey);
_cacheStore.RemoveRangeAsync(cacheKey.PrimaryKey + "?");
}
// check the response: is this response allowed to be cached?
bool isCacheable = HttpResponseHelpers.CanBeCached(serverResponse);
if (isCacheable)
{
// add the response to cache
_cacheStore.SetAsync(cacheKey, new CacheEntry(serverResponse));
}
// what about vary by headers (=> key should take this into account)?
}
return serverResponse;
}));
}
private Task <HttpResponseMessage> HandleSendAndContinuation(CacheKey cacheKey, HttpRequestMessage request,
System.Threading.CancellationToken cancellationToken, bool mustRevalidate)
{
return(base.SendAsync(request, cancellationToken)
.ContinueWith(
task =>
{
var serverResponse = task.Result;
// if we had to revalidate & got a 304 returned, that means
// we can get the response message from cache.
if (mustRevalidate && serverResponse.StatusCode == HttpStatusCode.NotModified)
{
var cacheEntry = _cacheStore.GetAsync(cacheKey).Result;
var responseFromCacheEntry = cacheEntry.HttpResponse;
responseFromCacheEntry.RequestMessage = request;
return responseFromCacheEntry;
}
if (serverResponse.IsSuccessStatusCode)
{
// ensure no NULL dates
if (serverResponse.Headers.Date == null)
{
serverResponse.Headers.Date = DateTimeOffset.UtcNow;
}
// check the response: is this response allowed to be cached?
bool isCacheable = HttpResponseHelpers.CanBeCached(serverResponse);
if (isCacheable)
{
// add the response to cache
_cacheStore.SetAsync(cacheKey, new CacheEntry(serverResponse));
}
// what about vary by headers (=> key should take this into account)?
}
return serverResponse;
}));
}