Is there a way in Micronaut to define custom message for validation in Micronaut.
Here is my code :
This is the annotation class :
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
@Constraint(validatedBy = [])
@Documented
@interface CheckDecimal {
String message() default "Invalid Decimal ({validatedValue})";
double minimum()
double maximum()
int integerLength()
int decimalLength()
}
This is my validation factory :
import io.micronaut.context.annotation.Factory
import io.micronaut.core.annotation.AnnotationValue
import io.micronaut.validation.validator.constraints.ConstraintValidator
import io.micronaut.validation.validator.constraints.ConstraintValidatorContext
import powehr.pandore.mn.validation.CheckDecimal
import javax.inject.Singleton
@Factory
class ValidatorFactory {
@Singleton
ConstraintValidator<CheckDecimal, Double> checkDecimalValidator() {
return { Double value,
AnnotationValue<CheckDecimal> annotation,
ConstraintValidatorContext context ->
final parameters = annotation.convertibleValues.asMap()
final keySet = parameters.keySet()
if(value == null) {
return true
}
if(keySet.contains('minimum')) {
double minimumValidator = parameters.get('minimum')
if(value < minimumValidator) {
// Define specific constraint message here
return false
}
}
if(keySet.contains('maximum')) {
double maximumValidator = parameters.get('maximum')
if(value > maximumValidator) {
// Define specific constraint message here
return false
}
}
if(keySet.contains('integerLength')) {
final integerLengthValidator = parameters.get('integerLength')
final integerLength = value.toString().split(/\./)[0].length()
if(integerLength > integerLengthValidator) {
// Define specific constraint message here
return false
}
}
if(keySet.contains('decimalLength')) {
final decimalLengthValidator = parameters.get('decimalLength')
final decimalLength = value.toString().split(/\./)[1].length()
if(decimalLength > decimalLengthValidator) {
// Define specific constraint message here
return false
}
}
return true
} as ConstraintValidator<CheckDecimal, Double>
}
}
And i use my constraint like that :
@CheckDecimal(minimum = -1.0d, maximum = 97.0d, integerLength = 2, decimalLength = 4)
I'd like to be able to write specific message in each case of constraint violation. The context doesn't seem to offer many possibility here.
Is there a way to define specific message validation in checkDecimalValidator() ?