Java Validator.isIPAddress Examples

Example #1

File: CookieKeys.java Project: Escobita/liferay-portal

  public static String getDomain(String host) {

    // See LEP-4602 and LEP-4645.

    if (host == null) {
      return null;
    }

    // See LEP-5595.

    if (Validator.isIPAddress(host)) {
      return host;
    }

    int x = host.lastIndexOf(CharPool.PERIOD);

    if (x <= 0) {
      return null;
    }

    int y = host.lastIndexOf(CharPool.PERIOD, x - 1);

    if (y <= 0) {
      return StringPool.PERIOD + host;
    }

    int z = host.lastIndexOf(CharPool.PERIOD, y - 1);

    String domain = null;

    if (z <= 0) {
      domain = host.substring(y);
    } else {
      domain = host.substring(z);
    }

    return domain;
  }