/src/main/java/com/electricalweb/modules/EmailValidator.java

package com.electricalweb.modules;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class EmailValidator implements ConstraintValidator<ValidEmail, String> {

    private static final Pattern VALID_EMAIL_ADDRESS_REGEX = Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);

    @Override
    public void initialize(ValidEmail constraintAnnotation) {

    }

    @Override
    public boolean isValid(String email, ConstraintValidatorContext constraintValidatorContext) {
        Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(email);
        return matcher.find();
    }
}