@Nonnull
@Override
public Response handle(@Nonnull final Context context) throws Exception {
String action = context.getRequest().getAction();
if (!HttpMethods.GET.equals(action)) {
return context.proceed();
}
NegativeCacheFacet negativeCache = context.getRepository().facet(NegativeCacheFacet.class);
NegativeCacheKey key = negativeCache.getCacheKey(context);
Response response;
Status status = negativeCache.get(key);
if (status == null) {
response = context.proceed();
if (isNotFound(response)) {
negativeCache.put(key, response.getStatus());
} else if (response.getStatus().isSuccessful()) {
negativeCache.invalidate(key);
}
} else {
response = new Response.Builder().status(status).build();
log.debug("Found {} in negative cache, returning {}", key, response);
}
return response;
}
@Nonnull
@Override
public Response handle(final @Nonnull Context context) throws Exception {
final String method = context.getRequest().getAction();
switch (method) {
case GET:
case HEAD:
{
final DispatchedRepositories dispatched =
context.getRequest().getAttributes().getOrCreate(DispatchedRepositories.class);
return doGet(context, dispatched);
}
default:
return HttpResponses.methodNotAllowed(method, GET, HEAD);
}
}
/** Method that actually performs group GET. Override if needed. */
protected Response doGet(
final @Nonnull Context context, final @Nonnull DispatchedRepositories dispatched)
throws Exception {
final GroupFacet groupFacet = context.getRepository().facet(GroupFacet.class);
return getFirst(context.getRequest(), groupFacet.members(), dispatched);
}