17thAirhacksQ&A

17thAirhacksQ&A.md

Ask questions and see you at 3rd August at 6.PM. CET: http://www.ustream.tv/channel/adambien Also see archives: airhacks.tv

Hello Adam,

How to conform to YSlow rules using JSF ? Can we use some cdi, interceptor magic here ?
You don't need to go though all the rules. I just want to know the basics.
For example expires headers and tagging the images, js and css files with timestamps, how to go about it ?

There are questions about Kafka and Akka, so I want to ask you about your opinion about Vert.x.

hello adam,
i have some questions concerning the actual situation about open source and production ready JavaEE-AppServers.
.) In previous days I could use glassfish in production without costs but i could decide to pay for a production license too. That was fine. Today with Wildfly I have a similar situation. I can develop and run wildfly in production, but when i want to pay for a production license, I have to switch to Jboss EAP (which is not available yet for JavaEE 7). As a consequence I have "diffferent" products (Wildfly and Jboss EAP). Is this correct? Or do i miss something? (is here a similar situation with TomEE?)
.) Websphere Liberty Profile has a similar situation compared to glassfish, but i have a restriction when using in production without a payed license (2 Gig?).
.) With Docker in mind I see the Liberty Profile especially designed for docker use (lightweight, fast, modular, ...). What about Wildfly and TomEE in Docker use? There exist no "special" docker versions.
Does that mean, that they are dockerable enough out of the box? Do there exist Benchmarks or other technical infos when comparing multi ear's/war's Applications on one AppServer on Docker with one ear/war/AppServer/Docker-Architecture? (i mean an application, consisting for instance of 10 ear's/war's. On the one hand, I can use one AppServer inside a Docker Container for all 10 ear's/war's. Or I take for each ear/war one AppServer inside a Docker container. So i have 10 parallel AppServers inside 10 docker containers).
thanxs in advance, andy

Hello, Im new to JAX-RS approach and i've a particular questions. can anybody answer?

I've a method like following in a service class

@GET
@Produces(MediaType.APPLICATION_JSON)
    public Response listUsers( //PaginatedListWrapper
            @QueryParam("page") @DefaultValue("1") Integer page,
            @QueryParam("sortFields") @DefaultValue("id") String sortFields,
            @QueryParam("sortDirections") @DefaultValue("asc") String sortDirections) {

        PaginatedListWrapper listWrapper = new PaginatedListWrapper<>();
        listWrapper.setCurrentPage(page);
        listWrapper.setSortFields(sortFields);
        listWrapper.setSortDirections(sortDirections);
        listWrapper.setTotalResults(this.countAll());

        int start = (listWrapper.getCurrentPage() - 1) * listWrapper.getPageSize();
        listWrapper.setList(userFacade.findRange(new int[]{start, listWrapper.getPageSize()}));

        return Response.status(Response.Status.OK).entity(listWrapper).build();
    }

my PaginatedListWrapper class like follows

public class PaginatedListWrapper {
    private Integer currentPage;
    private Integer pageSize;
    private Integer totalResults;
 
    private String sortFields;
    private String sortDirections;
    private List list;

and im getting output like the following

Object {
currentPage: 1, 
list: Array[2],
0: "net.brac.ict.mis.tup.uplift.business.entities.User[ id=1 ]"
1: "net.brac.ict.mis.tup.uplift.business.entities.User[ id=2 ]" 
pageSize: 10, 
sortDirections: "asc", 
sortFields: "id"…
}

why im not getting the list of users as json object? like array of objects [{}, {}, {} ...]
what im missing here?
other than using jersey or jackson, i want to learn the underneath core stuffs of doing this.
in my maven it just javaee-web-api and eclipselink

Anyone please ?