Hi Pat
On 22/11/11 14:53, Pat Turner wrote:
Hi Sergey,
I have two root resources: Fleet and Bus. I want to be able to list all
Buses or all Busses by Fleet. I had expected to expose URLs such as:
#All Busses
/busses
# Busses by Fleet
/fleets/{fleet_id}/busses
My Bus resource looks like this:
@Path("/busses")
@Component
public class BusResource {
@PathParam(fleet_id)
private String fleetId;
public List<Bus> getBusses() {
//sercice call: lookup busses for fleetId, or all if none
provided
}
}
My Fleet resource looks like this:
@Path("/fleets")
@Component
public class FleetResource {
//TODO inject/lookup with jax-rs context resources
@Autowired
BusResource busResource
@Path("/{fleet_id}/busses")
public Object getBusses() {
return busResource
}
}
I realise I'm actually (ab)using a root resource as a sub-resource, but I
can't see a nice way to use the same code to access resources with and
without context (Fleet).
Reusing a BusResource seems completely perfect to me, I'd do it the
similar way, but I believe
> @PathParam(fleet_id)
> private String fleetId;
is just not thread-safe, unless you get Spring injecting a new
BusResource instance into FleetResource per request (with request scope
may be).
I'd just update it like this:
@Path("/busses")
@Component
public class BusResource {
@GET
public List<Bus> getBusses(@PathParam("fleetid") String id) {
}
}
@Path("/fleets")
@Component
public class FleetResource {
//TODO inject/lookup with jax-rs context resources
@Autowired
BusResource busResource
@Path("/{fleet_id}/busses")
public BusResource getBusses() {
return busResource;
}
}
so /busses/1 and /fleets/1/busses will work equally well, all is
thread-safe, and even cxf jaxrs proxies will be able to do
FleetResource fleet = JAXRSClientFactory.create(FleetResource.class);
List<BusResource> bus = fleet.getBusses().getBusses("1");
I can look into the runtime supporting the injection into subresources,
but that will probably require setting a property which will indicate to
the runtime that the injection is safe
Cheers, Sergey
Thanks again,
Pat
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Sergey Beryozkin
http://sberyozkin.blogspot.com
Talend Community Coders
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