package edu.umn.dspace.captcha;

import com.octo.captcha.service.image.ImageCaptchaService;
import com.octo.captcha.service.image.DefaultManageableImageCaptchaService;
import com.octo.captcha.service.captchastore.*;
import com.octo.captcha.engine.image.gimpy.*;
import com.octo.captcha.engine.image.fisheye.SimpleFishEyeEngine;
import edu.umn.dspace.captcha.MyImageCaptchaEngine;

public class CaptchaServiceSingleton {
    private static ImageCaptchaService instance;
    /*
    FastHashMapCaptchaStore - is used for stroing captchas
    MyImageCaptchaEngine - a personsal captcha generator writen by J. Silvis
    minGuarantedStorageDelayInSeconds = 180s 
    maxCaptchaStoreSize = 100000 
    captchaStoreLoadBeforeGarbageCollection=75000
    */
    static {
    instance = new DefaultManageableImageCaptchaService(
			new FastHashMapCaptchaStore(),
			new MyImageCaptchaEngine(),
			180,
			100000,
			75000);
    }
    public static ImageCaptchaService getInstance(){
        return instance;
    }
}