@Override
public byte[] generateCaptchaImage(String captchaKey) throws AccountCaptchaException {
String text = captchaMap.get(captchaKey);
if (text == null) {
throw new AccountCaptchaException("Captch key" + captchaKey + " not found!");
}
BufferedImage image = producer.createImage(text);
ByteArrayOutputStream out = new ByteArrayOutputStream();
try {
ImageIO.write(image, "jpg", out);
} catch (IOException e) {
throw new AccountCaptchaException("Failed to write captcha stream!", e);
}
return out.toByteArray();
}
