public static String addParameters()

in jee-modules/jsf-module/impl/src/main/java/org/apache/myfaces/extensions/cdi/jsf/impl/util/JsfUtils.java [152:199]
43 lines of code
9 McCabe index (conditional complexity)

    public static String addParameters(ExternalContext externalContext, String url,
                                       boolean addRequestParameter, boolean addPageParameter, boolean encodeValues)
    {
        StringBuilder finalUrl = new StringBuilder(url);
        boolean existingParameters = url.contains("?");
        boolean urlContainsWindowId = url.contains(WindowContextManager.WINDOW_CONTEXT_ID_PARAMETER_KEY + "=");

        for(RequestParameter requestParam :
                getParameters(externalContext, true, addRequestParameter, addPageParameter))
        {
            String key = requestParam.getKey();

            //TODO eval if we should also filter the other params
            if(WindowContextManager.WINDOW_CONTEXT_ID_PARAMETER_KEY.equals(key) && urlContainsWindowId)
            {
                continue;
            }

            for(String parameterValue : requestParam.getValues())
            {
                if(!url.contains(key + "=" + parameterValue) &&
                        !url.contains(key + "=" + encodeURLParameterValue(parameterValue, externalContext)))
                {
                    if(!existingParameters)
                    {
                        finalUrl.append("?");
                        existingParameters = true;
                    }
                    else
                    {
                        finalUrl.append("&");
                    }
                    finalUrl.append(key);
                    finalUrl.append("=");

                    if(encodeValues)
                    {
                        finalUrl.append(JsfUtils.encodeURLParameterValue(parameterValue, externalContext));
                    }
                    else
                    {
                        finalUrl.append(parameterValue);
                    }
                }
            }
        }
        return finalUrl.toString();
    }