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

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!)

Code:

---

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

Code:

---

@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

Code:

---

@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

Code:

---

@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

Code:

---


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

.....

}

---

Controller

Code:

---


@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?

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

Code:

---

@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.