com.github.ukase.web.validation.RequiredAnyOfValidator.java Source code

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Here is the source code for com.github.ukase.web.validation.RequiredAnyOfValidator.java

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/*
 * Copyright (c) 2015 Konstantin Lepa <konstantin+ukase@lepabox.net>
 *
 * This file is part of Ukase.
 *
 *  Ukase is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as
 *  published by the Free Software Foundation, either version 3 of the
 *  License, or (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

package com.github.ukase.web.validation;

import org.springframework.beans.BeanWrapper;
import org.springframework.beans.BeanWrapperImpl;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

public class RequiredAnyOfValidator implements ConstraintValidator<RequiredAnyOf, Object> {
    private String[] fields;

    @Override
    public void initialize(RequiredAnyOf constraintAnnotation) {
        fields = constraintAnnotation.value();
    }

    @Override
    public boolean isValid(Object value, ConstraintValidatorContext context) {
        BeanWrapper beanWrapper = new BeanWrapperImpl(value);
        for (String field : fields) {
            Object v = beanWrapper.getPropertyValue(field);
            if (v != null) {
                return true;
            }
        }
        return false;
    }
}