|
Description:
|
I have a scenario where I am validating a _List_ as _NotNull_ for a method getTest see below example:
{code}
public interface IApplication {
void getTest(@NotNull List<String> someList); }
{code}
{code}
@AutoValidator //This is similar to the MethodValidation Interceptor and using guice as DI
@Slf4j
public class ApplicationImpl implements IApplication {
@Override
public void getTest(List<String> app) {
log.debug("Entered the method");
}
}
{code}
{code}
public class ValidationInterceptor implements MethodInterceptor {
@Inject
private ValidatorFactory validatorFactory;
@Override
public Object invoke(MethodInvocation invocation) throws Throwable {
MethodValidator validator = validatorFactory.getValidator().unwrap( MethodValidator.class);
//validate the all parameter values if they have been annotated with any constraints
Set<MethodConstraintViolation<Object>> violations = validator.validateAllParameters(
invocation.getThis(), invocation.getMethod(),
invocation.getArguments());
if (!violations.isEmpty()) {
throw new MethodConstraintViolationException(violations);
}
Object result = invocation.proceed();
//validate the return values if they have been annotated with any constraints
violations = validator.validateReturnValue(invocation.getThis(), invocation.getMethod(), result);
if (!violations.isEmpty()) {
throw new MethodConstraintViolationException(violations);
}
return result;
}
}
{code}
Unit test:
{code}
public class AppTest {
@Test
public void getTest() {
List<String> app = null;
appSvc.getTest(app);
}
}
{code}
|
