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ObServe Toolkit Common Validation module

There is a newer version: 4.34

package fr.ird.observe.validation.validators;

/*-
 * #%L
 * ObServe Toolkit :: Common Validation
 * %%
 * Copyright (C) 2017 - 2020 IRD, Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import com.opensymphony.xwork2.validator.ValidationException;
import org.nuiton.validator.xwork2.field.SkipableRequiredFieldValidator;

import java.util.Collection;

import static io.ultreia.java4all.i18n.I18n.n;

/**
 * @author Tony Chemit - [email protected]
 * @since 5
 */
public class MandatoryCollectionFieldValidation extends SkipableRequiredFieldValidator {

    public MandatoryCollectionFieldValidation() {
        setDefaultMessage(n("observe.validation.field.mandatory"));
    }

    @Override
    public String getValidatorType() {
        return "mandatoryCollection";
    }

    @Override
    protected void validateWhenNotSkip(Object object) throws ValidationException {
        String fieldName = getFieldName();
        Object value = getFieldValue(fieldName, object);
        if (value == null || ((Collection) value).isEmpty()) {
            addFieldError(fieldName, object);
        }
    }
}