public static Locale findLocale()

in core/cocoon-core/src/main/java/org/apache/cocoon/i18n/I18nUtils.java [123:217]
78 lines of code
31 McCabe index (conditional complexity)

    public static Locale findLocale(Map objectModel,
                                    String attribute,
                                    Parameters parameters,
                                    Locale defaultLocale,
                                    boolean useLocale,
                                    boolean useLocales,
                                    boolean useBlankLocale,
                                    LocaleValidator test) {
        String localeStr;
        Locale locale;

        Request request = ObjectModelHelper.getRequest(objectModel);

        // 1. Request parameter 'locale'
        localeStr = request.getParameter(attribute);
        if (localeStr != null) {
            locale = parseLocale(localeStr);
            if (test == null || test.test("request", locale)) {
                return locale;
            }
        }

        // 2. Session attribute 'locale'
        HttpSession session = request.getSession(false);
        if (session != null &&
                ((localeStr = (String) session.getAttribute(attribute)) != null)) {
            locale = parseLocale(localeStr);
            if (test == null || test.test("session", locale)) {
                return locale;
            }
        }

        // 3. First matching cookie parameter 'locale' within each cookie sent
        Cookie[] cookies = request.getCookies();
        if (cookies != null) {
            for (int i = 0; i < cookies.length; i++) {
                Cookie cookie = cookies[i];
                if (cookie.getName().equals(attribute)) {
                    localeStr = cookie.getValue();
                    locale = parseLocale(localeStr);
                    if (test == null || test.test("cookie", locale)) {
                        return locale;
                    }
                    break;
                }
            }
        }

        // 4. Sitemap parameter "locale"
        if (parameters != null) {
            localeStr = parameters.getParameter("locale", null);
            if (localeStr != null) {
                locale = parseLocale(localeStr);
                if (test == null || test.test("sitemap", locale)) {
                    return locale;
                }
            }
        }

        // 5. Locale setting of the requesting browser or server default
        if (useLocale && !useLocales) {
            locale = request.getLocale();
            if (test == null || test.test("request", locale)) {
                return locale;
            }
        }
        if (useLocales) {
            Enumeration locales = request.getLocales();
            while (locales.hasMoreElements()) {
                locale = (Locale)locales.nextElement();
                if (test == null || test.test("request", locale)) {
                    return locale;
                }
            }
        }

        // 6. Default
        if (defaultLocale != null) {
            locale = defaultLocale;
            if (test == null || test.test("default", locale)) {
                return locale;
            }
        }

        // 7. Blank
        if (useBlankLocale) {
            locale = new Locale("", "");
            if (test == null || test.test("blank", locale)) {
                return locale;
            }
        }

        // 8. Fail
        return null;
    }