org.springframework.hateoas.server.LinkRelationProvider Java Examples

@Test
public void halJacksonHttpMessageConverter() {
	ObjectMapper mapper = new ObjectMapper();
	when(objectMapper.getIfAvailable(any())).thenReturn(mapper);

	when(halConfiguration.getIfAvailable(any()))
			.thenReturn(mock(HalConfiguration.class));
	when(relProvider.getIfAvailable()).thenReturn(mock(LinkRelationProvider.class));
	when(curieProvider.getIfAvailable(any())).thenReturn(mock(CurieProvider.class));
	when(messageResolver.getIfAvailable()).thenReturn(mock(MessageResolver.class));

	TypeConstrainedMappingJackson2HttpMessageConverter converter = feignHalAutoConfiguration
			.halJacksonHttpMessageConverter(objectMapper, halConfiguration,
					messageResolver, curieProvider, relProvider);

	assertThat(converter).isNotNull();
	assertThat(converter.getObjectMapper()).isNotNull();
	assertThat(converter.getSupportedMediaTypes()).isEqualTo(Arrays.asList(HAL_JSON));

	assertThat(Jackson2HalModule.isAlreadyRegisteredIn(converter.getObjectMapper()))
			.isTrue();
}
 

@Bean
@ConditionalOnMissingBean
public TypeConstrainedMappingJackson2HttpMessageConverter halJacksonHttpMessageConverter(
		ObjectProvider<ObjectMapper> objectMapper,
		ObjectProvider<HalConfiguration> halConfiguration,
		ObjectProvider<MessageResolver> messageResolver,
		ObjectProvider<CurieProvider> curieProvider,
		ObjectProvider<LinkRelationProvider> linkRelationProvider) {

	ObjectMapper mapper = objectMapper.getIfAvailable(ObjectMapper::new).copy();
	mapper.disable(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);

	HalConfiguration configuration = halConfiguration
			.getIfAvailable(HalConfiguration::new);

	CurieProvider curieProviderInstance = curieProvider
			.getIfAvailable(() -> new DefaultCurieProvider(Collections.emptyMap()));

	Jackson2HalModule.HalHandlerInstantiator halHandlerInstantiator = new Jackson2HalModule.HalHandlerInstantiator(
			linkRelationProvider.getIfAvailable(), curieProviderInstance,
			messageResolver.getIfAvailable(), configuration);

	mapper.setHandlerInstantiator(halHandlerInstantiator);

	if (!Jackson2HalModule.isAlreadyRegisteredIn(mapper)) {
		Jackson2HalModule halModule = new Jackson2HalModule();
		mapper.registerModule(halModule);
	}

	TypeConstrainedMappingJackson2HttpMessageConverter converter = new TypeConstrainedMappingJackson2HttpMessageConverter(
			RepresentationModel.class);
	converter.setSupportedMediaTypes(Arrays.asList(HAL_JSON));
	converter.setObjectMapper(mapper);
	return converter;
}
 

/**
 * Default a assembler based on Spring MVC controller, resource type, and {@link LinkRelationProvider}. With this
 * combination of information, resources can be defined.
 *
 * @see #setBasePath(String) to adjust base path to something like "/api"/
 * @param controllerClass - Spring MVC controller to base links off of
 * @param relProvider
 */
public SimpleIdentifiableRepresentationModelAssembler(Class<?> controllerClass, LinkRelationProvider relProvider) {

	this.controllerClass = controllerClass;
	this.relProvider = relProvider;

	// Find the "T" type contained in "T extends Identifiable<?>", e.g.
	// SimpleIdentifiableRepresentationModelAssembler<User> -> User
	this.resourceType = GenericTypeResolver.resolveTypeArgument(this.getClass(),
			SimpleIdentifiableRepresentationModelAssembler.class);
}
 

public BarResourceAssembler(LinkRelationProvider relProvider) {
	super(BarController.class, BarResource.class);
	this.relProvider = relProvider;
}
 

@Bean
public BarResourceAssembler barResourceAssembler(LinkRelationProvider relProvider) {
	return new BarResourceAssembler(relProvider);
}
 

/**
 * Collection model content converter collection model content converter.
 *
 * @param halProvider the hal provider
 * @param linkRelationProvider the link relation provider
 * @return the collection model content converter
 */
@Bean
@ConditionalOnMissingBean
@Lazy(false)
CollectionModelContentConverter collectionModelContentConverter(HateoasHalProvider halProvider, LinkRelationProvider linkRelationProvider) {
	return halProvider.isHalEnabled() ? new CollectionModelContentConverter(linkRelationProvider) : null;
}
 

/**
 * Instantiates a new Collection model content converter.
 *
 * @param linkRelationProvider the link relation provider
 */
public CollectionModelContentConverter(LinkRelationProvider linkRelationProvider) {
	this.linkRelationProvider = linkRelationProvider;
}