com.faraox.rest.poc.provider.MyObjectMapperProvider.java Source code

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Here is the source code for com.faraox.rest.poc.provider.MyObjectMapperProvider.java

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package com.faraox.rest.poc.provider;

import com.faraox.rest.poc.bean.Person;
import javax.ws.rs.ext.ContextResolver;
import javax.ws.rs.ext.Provider;

import com.fasterxml.jackson.databind.AnnotationIntrospector;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.databind.introspect.JacksonAnnotationIntrospector;
import com.fasterxml.jackson.databind.type.TypeFactory;
import com.fasterxml.jackson.module.jaxb.JaxbAnnotationIntrospector;

/**
 *
 * @author sumved.shami
 */
@Provider
public class MyObjectMapperProvider implements ContextResolver<ObjectMapper> {

    final ObjectMapper defaultObjectMapper;
    final ObjectMapper combinedObjectMapper;

    public MyObjectMapperProvider() {
        defaultObjectMapper = createDefaultMapper();
        combinedObjectMapper = createCombinedObjectMapper();
    }

    @Override
    public ObjectMapper getContext(final Class<?> type) {

        if (type == Person.class) {
            return combinedObjectMapper;
        } else {
            return defaultObjectMapper;
        }
    }

    private static ObjectMapper createCombinedObjectMapper() {
        return new ObjectMapper().configure(SerializationFeature.WRAP_ROOT_VALUE, true)
                .configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true)
                .setAnnotationIntrospector(createJaxbJacksonAnnotationIntrospector());
    }

    private static ObjectMapper createDefaultMapper() {
        final ObjectMapper result = new ObjectMapper();
        result.enable(SerializationFeature.INDENT_OUTPUT);

        return result;
    }

    private static AnnotationIntrospector createJaxbJacksonAnnotationIntrospector() {

        final AnnotationIntrospector jaxbIntrospector = new JaxbAnnotationIntrospector(
                TypeFactory.defaultInstance());
        final AnnotationIntrospector jacksonIntrospector = new JacksonAnnotationIntrospector();

        return AnnotationIntrospector.pair(jacksonIntrospector, jaxbIntrospector);
    }
}