[jax-rs-spec users] [jsr339-experts] Request interface duplicates MBRs, HttpHeaders and UriInfo

From: Sergey Beryozkin <>
Date: Wed, 14 Dec 2011 10:47:47 +0000


I've had a closer look at the updated Request interface and IMHO it's
grown into a uber-interface that exposes much of the imformation which
is already available in other interfaces which can be injected into the
application code and also exposes the methods that the application code
should not even see.

1. HttpHeaders is there to provide the info about the current headers;
Request offers RequestHeaders which mainly duplicates what HttpHeaders
can offer; would it make sense to get Request updated to return
HttpHeaders instead and may be just drop RequestHeaders;

2. UriInfo offers all the methods needed to get to the current
request/base/absolute uri, Request duplicates 5-8 methods from UriInfo

3. JAX-RS is about MessageBodyReaders making it possible for users to
write the code like this:

public void post(Book book);

Having Request all of those methods that users are supposedly can/should
(?) call instead does not make sense to me. Request takes upon the MBR
and in fact the Providers functionality here.

For example, now instead of composite MBRs injecting Providers they
will/should inject Request instead ?

I know that filters do need such methods - hence I propose to move these
input stream/etc getters away from Request and make them visible on
relevant filter/handler interfaces