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Posted to dev@hc.apache.org by "Jon Moore (JIRA)" <ji...@apache.org> on 2012/10/03 17:04:07 UTC

[jira] [Commented] (HTTPCLIENT-1240) Empty HttpParams for cacheable requests

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1240?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13468597#comment-13468597 ] 

Jon Moore commented on HTTPCLIENT-1240:
---------------------------------------

@Xavier: Sure, we'd definitely like to take a look at this patch. I'm presuming that the params we'd want to see for a response generated by the cache should be drawn from the current request/client (as we have no way to remember what the params were for the request that originally created the cache entry). We'd definitely like to support this feature with CachingHttpClient if we can.

                
> Empty HttpParams for cacheable requests
> ---------------------------------------
>
>                 Key: HTTPCLIENT-1240
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1240
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Cache
>    Affects Versions: 4.2.1
>            Reporter: Francois-Xavier Bonnet
>            Priority: Minor
>
> With DefaultHttpClient, HttpResponse.getParams() returns a ClientParamsStack with all the parameters previously set at HttpClient or HttpRequest level.
> With CachingHttpClient it returns an empty BasicHttpParams when a response is cached.
> This feature can be very usefull when you are doing complex processing with Interceptors for example. It is described in HttpClient documentation:
> http://hc.apache.org/httpcomponents-client-ga/tutorial/html/fundamentals.html#d5e299
> http://hc.apache.org/httpcomponents-client-ga/httpclient/apidocs/org/apache/http/impl/client/ClientParamsStack.html
> CachingHttpClient should not break this feature.
> Here is some sample code:
> 	// Client and Request scoped params with DefaultHttpClient
> 	DefaultHttpClient httpClient = new DefaultHttpClient();
> 	httpClient.getParams().setParameter("testClientParam", "testClientParam");
> 	HttpGet httpGet = new HttpGet("http://www.google.fr/images/srpr/logo3w.png");
> 	httpGet.getParams().setParameter("testRequestParam", "testRequestParam");
> 	HttpResponse response = httpClient.execute(httpGet);
> 	EntityUtils.consumeQuietly(response.getEntity());
> 	System.out.println(response.getParams().getParameter("testClientParam"));
> 	System.out.println(response.getParams().getParameter("testRequestParam"));
> 	// Same test with CachingHttpClient
> 	httpClient = new DefaultHttpClient();
> 	CachingHttpClient cachingHttpClient = new CachingHttpClient(httpClient);
> 	cachingHttpClient.getParams().setParameter("testClientParam", "testClientParam");
> 	httpGet = new HttpGet("http://www.google.fr/images/srpr/logo3w.png");
> 	httpGet.getParams().setParameter("testRequestParam", "testRequestParam");
> 	response = cachingHttpClient.execute(httpGet);
> 	EntityUtils.consumeQuietly(response.getEntity());
> 	System.out.println(response.getParams().getParameter("testClientParam"));
> 	System.out.println(response.getParams().getParameter("testRequestParam"));
> If you agree I can provide a patch and unit tests

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