/** * Copyright (C) 2011 JTalks.org Team * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * This library 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 * Lesser General Public License for more details. * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ package org.jtalks.jcommune.model.validation.validators; import org.jtalks.jcommune.model.validation.annotations.TopicDraftNumberOfPollItems; import javax.validation.ConstraintValidator; import javax.validation.ConstraintValidatorContext; /** * Validator for {@link TopicDraftNumberOfPollItems} * * @author Dmitry S. Dolzhenko */ public class TopicDraftNumberOfPollItemsValidator implements ConstraintValidator<TopicDraftNumberOfPollItems, String> { private int min; private int max; @Override public void initialize(TopicDraftNumberOfPollItems constraintAnnotation) { this.min = constraintAnnotation.min(); this.max = constraintAnnotation.max(); } @Override public boolean isValid(String value, ConstraintValidatorContext constraintValidatorContext) { if (value == null) { return true; } String[] items = value.split("\n"); return items.length >= min && items.length <= max; } }