EncoderHelper.java

/*
 * Copyright (c) 2009 Piotr Piastucki
 * 
 * This file is part of Patchca CAPTCHA library.
 * 
 *  Patchca 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 3 of the License, or
 *  (at your option) any later version.
 *  
 *  Patchca 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 Patchca. If not, see <http://www.gnu.org/licenses/>.
 */
package com.xiongyingqi.captcha.utils.encoder;

import com.xiongyingqi.captcha.service.Captcha;
import com.xiongyingqi.captcha.service.CaptchaService;

import javax.imageio.ImageIO;
import java.io.IOException;
import java.io.OutputStream;

public class EncoderHelper {

    public static String getChallangeAndWriteImage(CaptchaService service, String format, OutputStream os) throws IOException {
        Captcha captcha = service.getCaptcha();
        ImageIO.write(captcha.getImage(), format, os);
        return captcha.getChallenge();
    }

}