/* 
 * This file is part of the PDF Split And Merge source code
 * Created on 16/nov/2012
 * Copyright 2017 by Sober Lemur S.a.s. di Vacondio Andrea (info@pdfsam.org).
 *
 * This program 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 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 org.pdfsam.support.validation;

import static org.sejda.commons.util.RequireUtils.requireArg;

/**
 * Validates that the input string is a valid positive integer in the given range
 * 
 * @author Andrea Vacondio
 * 
 */
class PositiveIntRangeStringValidator extends PositiveIntegerStringValidator {

    private int upper = Integer.MAX_VALUE;
    private int lower = Integer.MIN_VALUE;

    public PositiveIntRangeStringValidator(int lower, int upper) {
        requireArg(lower > 0 && upper > 0,
                "Lower and upper limit cannot be negative numbers, lower=" + lower + " upper=" + upper);
        this.upper = upper;
        this.lower = lower;
    }

    @Override
    public boolean isValid(String input) {
        if (super.isValid(input)) {
            int victim = Integer.parseInt(input);
            return victim >= lower && victim <= upper;
        }
        return false;
    }
}
