Re: [Resteasy-developers] On an implementation detail of org.jboss.resteasy.client.jaxrs.cache.CacheInterceptor

[Mark P. <msp...@gm...>]

I'm sorry I do not.  I studied the code line by line and the question
occurred to me.

On Thu, Apr 17, 2014 at 2:17 PM, Bill Burke <bb...@re...> wrote:
> You got a test that reproduces this?
>
> On 4/15/2014 12:43 PM, Mark Petrovic wrote:
>> Good day.
>>
>> I am studying HTTP caching, and I have been helped a great deal by
>> a close reading of the Resteasy CacheInterceptor client filter
>> example:
>>
>> https://github.com/resteasy/Resteasy/blob/master/jaxrs/resteasy-client/src/main/java/org/jboss/resteasy/client/jaxrs/cache/CacheInterceptor.java
>>
>> I am still learning and could easily be missing something.  But it
>> seems to me that if
>>
>> 1) the client sets an If-None-Match header with an Etag value
>>
>> and
>>
>> 2) there is no local cache entry whatsoever, expired or not, as
>> determined in the ClientRequestFilter implementation
>>
>> and
>>
>> 3) the server returns 304 by virtue of the If-None-Match header
>>
>> then the ClientResponseFilter implementation will try to fetch a
>> response from cache when it is already determined that there is no
>> such entry.  Consequently, the client is left with no usable response
>> available from cache or from the origin server.
>>
>> If I am correct, then if there is no cache entry as determined in
>> the ClientRequestFilter implementation, is it appropriate to remove
>> any If-None-Match -type headers before the request is sent?
>>
>> Thank you for your time as I try to understand this.
>>
>
> --
> Bill Burke
> JBoss, a division of Red Hat
> http://bill.burkecentral.com
>
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-- 
Mark