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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 com.opensymphony.xwork2.validator.validators.FieldValidatorSupport;

import java.util.Collection;

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

/**
 * Created by tchemit on 19/10/2018.
 *
 * @author Tony Chemit - [email protected]
 */
public class CollectionNotFilledFieldValidator extends FieldValidatorSupport {

    public CollectionNotFilledFieldValidator() {
        setDefaultMessage(n("observe.validation.field.not.filled"));
    }

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

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