static void fixEncoding()

in src/main/java/org/apache/sling/engine/impl/parameters/Util.java [111:158]
34 lines of code
10 McCabe index (conditional complexity)

    static void fixEncoding(ParameterMap parameterMap) {
        // default the encoding to defaultFixEncoding
        String formEncoding = getDefaultFixEncoding();

        // check whether a form encoding parameter overwrites this default
        RequestParameter[] feParm = parameterMap.get(ParameterSupport.PARAMETER_FORMENCODING);
        if (feParm != null) {
            // get and check form encoding
            byte[] rawEncoding = feParm[0].get();
            formEncoding = toIdentityEncodedString(rawEncoding);
            formEncoding = validateEncoding(formEncoding);
        }

        // map for rename parameters due to encoding fixes
        LinkedHashMap<String, String> renameMap = new LinkedHashMap<String, String>();

        // convert the map of lists to a map of arrays
        for (Map.Entry<String, RequestParameter[]> paramEntry : parameterMap.entrySet()) {
            RequestParameter[] params = paramEntry.getValue();
            String parName = null;
            for (int i = 0; i < params.length; i++) {
                if (params[i] instanceof AbstractRequestParameter) {
                    AbstractRequestParameter param = (AbstractRequestParameter) params[i];

                    // fix encoding if different
                    if (!formEncoding.equalsIgnoreCase(param.getEncoding())) {
                        param.setEncoding(formEncoding);

                        // prepare the parameter for renaming
                        if (parName == null) {
                            parName = paramEntry.getKey();
                            String name = reencode(parName, formEncoding);
                            if (!parName.equals(name)) {
                                renameMap.put(parName, name);
                            }
                        }
                    }
                }
            }
        }

        // apply mappings of deinternationalized names
        if (!renameMap.isEmpty()) {
            for (Map.Entry<String, String> entry : renameMap.entrySet()) {
                parameterMap.renameParameter(entry.getKey(), entry.getValue());
            }
        }
    }