Cache revalidation of entries now sends etags of all cached variants on

the conditional request. (Commit of my own patch posted to
https://issues.apache.org/jira/browse/HTTPCLIENT-1024 before I had
commit rights).


git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/trunk@1043717 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Jonathan Moore 2010-12-08 22:04:48 +00:00
parent b152f2275b
commit e1e7f9c80e
2 changed files with 60 additions and 1 deletions

View File

@ -414,7 +414,7 @@ public class CachingHttpClient implements HttpClient {
Set<HttpCacheEntry> variantEntries = null;
try {
responseCache.getVariantCacheEntries(target, request);
variantEntries = responseCache.getVariantCacheEntries(target, request);
} catch (IOException ioe) {
log.warn("Unable to retrieve variant entries from cache", ioe);
}

View File

@ -806,4 +806,63 @@ public class TestProtocolRecommendations extends AbstractProtocolTest {
assertNull(captured.getFirstHeader("If-Match"));
assertNull(captured.getFirstHeader("If-Unmodified-Since"));
}
/* "If an entity tag was assigned to a cached representation, the
* forwarded request SHOULD be conditional and include the entity
* tags in an If-None-Match header field from all its cache entries
* for the resource."
*
* http://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html#sec13.6
*/
@Test
public void testSendsAllVariantEtagsInConditionalRequest()
throws Exception {
HttpRequest req1 = new BasicHttpRequest("GET","/",HttpVersion.HTTP_1_1);
req1.setHeader("User-Agent","agent1");
HttpResponse resp1 = HttpTestUtils.make200Response();
resp1.setHeader("Cache-Control","max-age=3600");
resp1.setHeader("Vary","User-Agent");
resp1.setHeader("Etag","\"etag1\"");
backendExpectsAnyRequest().andReturn(resp1);
HttpRequest req2 = new BasicHttpRequest("GET","/",HttpVersion.HTTP_1_1);
req2.setHeader("User-Agent","agent2");
HttpResponse resp2 = HttpTestUtils.make200Response();
resp2.setHeader("Cache-Control","max-age=3600");
resp2.setHeader("Vary","User-Agent");
resp2.setHeader("Etag","\"etag2\"");
backendExpectsAnyRequest().andReturn(resp2);
Capture<HttpRequest> cap = new Capture<HttpRequest>();
HttpRequest req3 = new BasicHttpRequest("GET","/",HttpVersion.HTTP_1_1);
req3.setHeader("User-Agent","agent3");
HttpResponse resp3 = HttpTestUtils.make200Response();
EasyMock.expect(mockBackend.execute(EasyMock.eq(host),
EasyMock.capture(cap), (HttpContext)EasyMock.isNull()))
.andReturn(resp3);
replayMocks();
impl.execute(host,req1);
impl.execute(host,req2);
impl.execute(host,req3);
verifyMocks();
HttpRequest captured = cap.getValue();
boolean foundEtag1 = false;
boolean foundEtag2 = false;
for(Header h : captured.getHeaders("If-None-Match")) {
for(String etag : h.getValue().split(",")) {
if ("\"etag1\"".equals(etag.trim())) {
foundEtag1 = true;
}
if ("\"etag2\"".equals(etag.trim())) {
foundEtag2 = true;
}
}
}
assertTrue(foundEtag1 && foundEtag2);
}
}