private List<HttpMessageConverter<?>> potentiallyRegisterModule( List<HttpMessageConverter<?>> converters) { for (HttpMessageConverter<?> converter : converters) { if (converter instanceof MappingJackson2HttpMessageConverter) { MappingJackson2HttpMessageConverter halConverterCandidate = (MappingJackson2HttpMessageConverter) converter; ObjectMapper objectMapper = halConverterCandidate.getObjectMapper(); if (Jackson2HalModule.isAlreadyRegisteredIn(objectMapper)) { return converters; } } } CurieProvider curieProvider = getCurieProvider(beanFactory); RelProvider relProvider = beanFactory.getBean(DELEGATING_REL_PROVIDER_BEAN_NAME, RelProvider.class); ObjectMapper halObjectMapper = beanFactory.getBean(HAL_OBJECT_MAPPER_BEAN_NAME, ObjectMapper.class); MessageSourceAccessor linkRelationMessageSource = beanFactory.getBean(MESSAGE_SOURCE_BEAN_NAME, MessageSourceAccessor.class); halObjectMapper.registerModule(new Jackson2HalModule()); halObjectMapper.setHandlerInstantiator( new Jackson2HalModule.HalHandlerInstantiator( relProvider, curieProvider, linkRelationMessageSource)); MappingJackson2HttpMessageConverter halConverter = new TypeConstrainedMappingJackson2HttpMessageConverter(ResourceSupport.class); halConverter.setSupportedMediaTypes(Arrays.asList(HAL_JSON)); halConverter.setObjectMapper(halObjectMapper); List<HttpMessageConverter<?>> result = new ArrayList<HttpMessageConverter<?>>(converters.size()); result.add(halConverter); result.addAll(converters); return result; }
/** * Configure an existing {@link ObjectMapper} instance with this builder's settings. This can be * applied to any number of {@code ObjectMappers}. * * @param objectMapper the ObjectMapper to configure */ @SuppressWarnings("deprecation") public void configure(ObjectMapper objectMapper) { Assert.notNull(objectMapper, "ObjectMapper must not be null"); if (this.findModulesViaServiceLoader) { // Jackson 2.2+ objectMapper.registerModules(ObjectMapper.findModules(this.moduleClassLoader)); } else if (this.findWellKnownModules) { registerWellKnownModulesIfAvailable(objectMapper); } if (this.modules != null) { for (Module module : this.modules) { // Using Jackson 2.0+ registerModule method, not Jackson 2.2+ registerModules objectMapper.registerModule(module); } } if (this.moduleClasses != null) { for (Class<? extends Module> module : this.moduleClasses) { objectMapper.registerModule(BeanUtils.instantiate(module)); } } if (this.dateFormat != null) { objectMapper.setDateFormat(this.dateFormat); } if (this.locale != null) { objectMapper.setLocale(this.locale); } if (this.timeZone != null) { objectMapper.setTimeZone(this.timeZone); } if (this.annotationIntrospector != null) { objectMapper.setAnnotationIntrospector(this.annotationIntrospector); } if (this.propertyNamingStrategy != null) { objectMapper.setPropertyNamingStrategy(this.propertyNamingStrategy); } if (this.serializationInclusion != null) { objectMapper.setSerializationInclusion(this.serializationInclusion); } if (this.filters != null) { // Deprecated as of Jackson 2.6, but just in favor of a fluent variant. objectMapper.setFilters(this.filters); } for (Class<?> target : this.mixIns.keySet()) { // Deprecated as of Jackson 2.5, but just in favor of a fluent variant. objectMapper.addMixInAnnotations(target, this.mixIns.get(target)); } if (!this.serializers.isEmpty() || !this.deserializers.isEmpty()) { SimpleModule module = new SimpleModule(); addSerializers(module); addDeserializers(module); objectMapper.registerModule(module); } customizeDefaultFeatures(objectMapper); for (Object feature : this.features.keySet()) { configureFeature(objectMapper, feature, this.features.get(feature)); } if (this.handlerInstantiator != null) { objectMapper.setHandlerInstantiator(this.handlerInstantiator); } else if (this.applicationContext != null) { objectMapper.setHandlerInstantiator( new SpringHandlerInstantiator(this.applicationContext.getAutowireCapableBeanFactory())); } }