Autowiring does not work inside custom constraint validator using Spring-Test-MVC

[DJC_Spring]

Dear Spring Community,

I have an issue with autowiring inside a custom constraint validator when running an integration test using spring-test-mvc. The service I require is null.

However when I run the web app, its is auotwired correctly.

Custom Constraint Validator (Booking Service is null!)

public class CheckAvailabilityValidator implements ConstraintValidator<CheckAvailability, Booking> {

	private DateTimeFormatter formatter;
	private int maxNumberOfBookings = 2;
	
	@Autowired
	private BookingService bookingService;

	public void initialize(CheckAvailability constraintAnnotation) {
		formatter = DateTimeFormat.forPattern("dd/MM/yyyy");
	}

	public boolean isValid(Booking booking, ConstraintValidatorContext constraintContext) {
		
		if (booking.getArrivalDate() == null || booking.getDepartureDate() == null) {
			return false;
		}

		DateTime arrivalDate = formatter.parseDateTime(booking.getArrivalDate());
		DateTime departureDate = formatter.parseDateTime(booking.getDepartureDate());
		
		if (bookingService.findBookingsByDateRange(arrivalDate,departureDate).size() > maxNumberOfBookings) {
			return false;
		} else {
			return true;
		}
	}

}

Annotation

@Target({ TYPE, ANNOTATION_TYPE })
@Retention(RUNTIME)
@Constraint(validatedBy = CheckAvailabilityValidator.class)
@Documented
public @interface CheckAvailability {

    String message() default "{we.do.not.have.availability}";
    
    Class<?>[] groups() default {};

    Class<? extends Payload>[] payload() default {};

}

Service

@Service
public class BookingService implements IBookingService{
	
        @Autowired
        private BookingDao bookingDao;
	
	private static Logger logger = LoggerFactory.getLogger(BookingService.class);
	
	@Override
	public List<Booking> findBookingsByDateRange(DateTime from, DateTime to) {
		return bookingDao.findBookingsByDateRange(from, to);
               
	}
	
}

Unit Test

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = {BookingControllerConfig.class})
public class BookingControllerTest {

        @Autowired
	private BookingController bookingController;
	
	private List<Booking> bookingList = new ArrayList<Booking>();

        .....
	
        @Test
	public void testPostBookingDetails() throws Exception {


		
         standaloneSetup(bookingController).build().perform(post("/booking_details")
				.param("arrivalDate", "01/01/2013")
				.param("departureDate", "09/01/2013")
				.param("accomendationType", "Suite")
				.param("numberOfAdults", "2")
				.param("numberOfChildren", "2"))		
			.andDo(print())
			.andExpect(status().isOk());
	}
...

}

Config

@Configuration
public class BookingControllerConfig {
	
	@Bean
	public BookingController bookingController() {
		return new BookingController();
	}
	
	@Bean
	public BookingService bookingService() {
		return Mockito.mock(BookingService.class);
	}

.....

}

Controller

@Controller
public class BookingController {

   ...

      @RequestMapping(value = "/booking_details", method = RequestMethod.POST)
      public ModelAndView showBookingDetails(@Validated Booking booking, BindingResult bindingResult, ContactDetails  
                                                               contactDetails, HttpServletResponse response) throws IOException {
      ...
      }
  ...
}

Any ideas?

[DJC_Spring]

Hi Everyone,

With Thanks to Rossen Stoyanchev I have this working.

In short the problem is to do with standloneSetup with does not load spring configuration.

One option is to create a LocalValidatorFactoryBean configured with a SpringConstraintValidatorFactory and plug it into the standaloneSetup builder.

However I decided to migrate from spring-test-mvc to spring-test in 3.2.

All that was required was to annotate my test class with @WebAppConfiguration, load in my spring configuration files with @ContextConfiguration and then @Autowired WebApplicationContext

Example

@RunWith(SpringJUnit4ClassRunner.class)
@WebAppConfiguration
@ContextConfiguration(value ={
		"file:src/main/webapp/WEB-INF/spring/appServlet/servlet-context.xml",
		"classpath:/META-INF/config/service-context.xml ",
		"classpath:/META-INF/config/persistence-context.xml",
		"classpath:/META-INF/config/dataSource-context.xml"
})

public class BookingControllerAvailabilityTestRefactor {
	
	@Autowired
	private BookingController bookingController;
	private String arrivalDate;
	private String departureDate;
	private static String dateFormat = "dd/MM/yyyy";
	
	@Autowired
	private WebApplicationContext wac;
	private MockMvc mvc;
	
	@Before
	public void setup() {
		arrivalDate= DateTime.now().plusDays(1).toString(dateFormat);
		departureDate= DateTime.now().plusDays(5).toString(dateFormat);
		this.mvc = webAppContextSetup(this.wac).build();
	}
	
	@Test
	public void testPostBookingDetails() throws Exception {
	    this.mvc.perform(post("/booking_details")
	    		.param("arrivalDate", this.arrivalDate)
				.param("departureDate", this.departureDate)
				.param("accomendationType", "Suite")
				.param("numberOfAdults", "2")
				.param("numberOfChildren", "2"))
			.andDo(print())
			.andExpect(status().isOk());
	        
	  }
	
		
}

I can now @Autowire services in my custom jsr annotation validator.

Hope this helps others

Regards
Darren C.