users@jersey.java.net

[Jersey] Re: JSON with JAXBContextResolver and JAXB

From: James Green <james.mk.green_at_gmail.com>
Date: Thu, 2 Aug 2012 15:51:21 +0100

John,

I added the classes as you suggested.

My app now loads without the provider being invoked. The "Creating a custom
JAXBContextResolver" message is not logged.

Any ideas?

On 2 August 2012 13:37, John Yeary <johnyeary_at_gmail.com> wrote:

> Hello James,
>
> The code looks fairly good, but ht e JSONJAXBContext takes a
> JSONConfiguration, and an array of classes to be bound to. You should have
> something like...
>
> @Provider
> @Produces(MediaType.APPLICATION_JSON)
> public class JAXBContextResolver implements ContextResolver<JAXBContext> {
>
> private final JAXBContext context;
> private final Set<Class> types;
> private final Class[] classesToBeBound = {Account.class};
>
> public JAXBContextResolver() throws JAXBException {
> System.out.println("Creating a custom JAXBContextResolver");
> this.types = new HashSet(Arrays.asList(classesToBeBound));
> this.context = new JSONJAXBContext(JSONConfiguration.natural().build(),
> classesToBeBound);
>
> System.out.println("Created a custom JAXBContextResolver");
> }
>
> @Override
> public JAXBContext getContext(Class<?> type) {
> System.out.println("Servicing context request for type " +
> type.getSimpleName());
> return types.contains(type) ? context : null;
> }
>
> }
>
> I hope that helps...
>
> John
> ____________________________
>
> John Yeary
> ____________________________
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>
>
>
> On Thu, Aug 2, 2012 at 6:25 AM, James Green <james.mk.green_at_gmail.com>wrote:
>
>> Hi,
>>
>> Am trying to follow
>> http://jersey.java.net/nonav/documentation/latest/json.html#json.jaxb.approach.section
>>
>> On my first attempt I was told that no ObjectFactory or jaxb.index file
>> exists. So following a suggestion on StackOverflow I added a
>> maven-antrun-plugin to my POM which generated my jaxb.index file (there are
>> quite a few models with JAXB annotations).
>>
>> However, the problem persists. Perhaps a classpath issue, but I've not
>> found any examples to follow to investigate and fix.
>>
>> The root of my problem here is that I am building a project for
>> deployment in either Glassfish or JBoss. Under testing we found the JSON
>> representations using shipped defaults differed making testing impossible.
>> I was advised to check the JSON Processing spec mailing list by the London
>> JUG for advice on overcoming this, but was told there's nothing in the
>> pipeline and to ask here instead.
>>
>> So in short I am trying to specify JSON.NATURAL across both Glassfish and
>> JBoss, beginning with the link above and still not getting far.
>>
>> Some help and insight would be appreciated.
>>
>> Here's my Provider:
>>
>> @Provider
>> @Produces(MediaType.APPLICATION_JSON)
>> public class JAXBContextResolver implements ContextResolver<JAXBContext> {
>>
>> private JAXBContext context;
>> public JAXBContextResolver() throws JAXBException {
>> System.out.println("Creating a custom JAXBContextResolver");
>> this.context = new
>> JSONJAXBContext(JSONConfiguration.natural().build(),
>> com.example.model.Account.class.getPackage().getName());
>> System.out.println("Created a custom JAXBContextResolver");
>> }
>>
>> @Override
>> public JAXBContext getContext(Class<?> type) {
>> System.out.println("Servicing context request for type " +
>> type.getSimpleName());
>> return this.context;
>> }
>>
>> }
>>
>>
>> James
>>
>>
>