Thanks Tim!!
I got it to work like that.
Maybe Restlet could support Module class and we could finally set by XML
parameters to the Converter.
Thanks again!
Tim Peierls wrote:
>
> I got this to work by extending JacksonRepresentation and overriding the
> createObjectMapper method. You can call super.createObjectMapper(), then
> configure the ObjectMapper instance it returns.
>
> To get this to work in the ConverterService, I extended
> JacksonConverterService by overriding these methods:
>
> @Override protected <T> JacksonRepresentation<T> create(MediaType
> mediaType, T source)
> @Override protected <T> JacksonRepresentation<T> create(Representation
> source, Class<T> objectClass)
>
> to return my extension of JacksonRepresentation. Then I removed the
> JacksonConverterService from the engine and replace it with my local
> extension.
>
> I'd love to know if there's a better way.
>
> Incidentally (and not on-topic for this list), recent Jackson releases
> have
> included an ObjectMapper configuration mechanism called Module, which
> allows
> you to bundle a set of related configuration information, including
> customer
> serializers and deserializers, into a package that you can apply to your
> ObjectMapper in one shot. For example, I bundled up some common
> Restlet-related serialization configuration into a "Module" like this:
>
> // SimpleModule is a Jackson-provided class that adds some
> // convenience methods to the Module interface.
> public class RestletJsonMapping extends SimpleModule {
> public RestletJsonMapping() {
> super(MODULE_NAME, MODULE_VERSION);
> }
>
> @Override public void setupModule(SetupContext context) {
> // These can be called instead on the Module instance,
> // you don't have to do it here.
> addSerializer(MediaType.class, new MediaTypeSerializer());
> addDeserializer(MediaType.class, new MediaTypeDeserializer());
> addSerializer(Reference.class, new ReferenceSerializer());
> addDeserializer(Reference.class, new ReferenceDeserializer());
> addSerializer(Relation.class, new RelationSerializer());
> addDeserializer(Relation.class, new RelationDeserializer());
> addSerializer(Link.class, new LinkSerializer());
> addDeserializer(Link.class, new LinkDeserializer());
>
> SerializationConfig sc = context.getSerializationConfig();
> // This is the setting to suppress serialization of nulls.
> sc.setSerializationInclusion(JsonSerialize.Inclusion.NON_NULL);
>
> DeserializationConfig dc = context.getDeserializationConfig();
> dc.setAbstractTypeResolver(new AbstractTypeMaterializer());
>
> super.setupModule(context);
> }
>
> // module name and version constants here
> }
>
> And I apply it like this in my overridden createObjectMapper:
>
> protected ObjectMapper createObjectMapper() {
> ObjectMapper mapper = super.createObjectMapper();
> mapper.registerModule(new RestletJsonMapping());
> return mapper;
> }
>
> --tim
>
>
>
> On Thu, Feb 10, 2011 at 11:00 AM, gonzajg <[email protected]> wrote:
>
>> Hi!
>> I would like to configure JacksonConverterService to ignore null values
>> when
>> serializing.
>> In their manual I should:
>>
>> objectMapper.configure(SerializationConfig.WRITE_NULL_PROPERTIES, false);
>>
>> I'm using Restlet 2.0.4 with automatic
>> org.restlet.ext.jackson.JacksonConverter
>> Problem is when I return an object it represents like:
>>
>> {"email":"[email protected]","password":null}
>>
>> I'd like not to include password without removing the field from the
>> object.
>> And in every similar case.
>> I tried extending JacksonConverter but couldn't find any reference to the
>> objectMapper or configuration.
>>
>> Any help is appreciated
>> Thanks!
>> --
>> View this message in context:
>> http://restlet-discuss.1400322.n2.nabble.com/Configure-ConverterService-tp6012218p6012218.html
>> Sent from the Restlet Discuss mailing list archive at Nabble.com.
>>
>> ------------------------------------------------------
>>
>> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2703283
>>
>
> ------------------------------------------------------
> http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447&dsMessageId=2703289
>
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