if (session != null) {
                return session.getId();
            }
            final String preference = r.getParameter("preference");
            if (preference != null) {
                return Integer.toString(preference.hashCode());
            }
            final Object accessType = r.getAttribute(Constants.SEARCH_LOG_ACCESS_TYPE);

            queryRequestBuilder.addAggregation(termsBuilder);
            queryRequestBuilder.setPreference(Constants.SEARCH_PREFERENCE_LOCAL);
            return true;
        }, (queryRequestBuilder, execTime, searchResponse) -> {
            final List<Map<String, String>> sessionIdList = new ArrayList<>();

    public static final String REQUEST_LANGUAGES = "requestLanguages";

    public static final String REQUEST_PAGE_SIZE = "requestPageSize";

    public static final String SEARCH_PREFERENCE_LOCAL = "_local";

    public static final String GSA_API_VERSION = "3.2";

    public static final String PERMISSIONS = "permissions";

    public static final String QUERIES = "queries";

query.collapse.max.concurrent.group.results=4
query.collapse.inner.hits.name=similar_docs
query.collapse.inner.hits.size=0
query.collapse.inner.hits.sorts=
query.default.languages=
query.json.default.preference=_query
query.gsa.default.preference=_query
query.language.mapping=\
ar=ar\n\
bg=bg\n\
bn=bn\n\
ca=ca\n\
ckb-iq=ckb-iq\n\
ckb_IQ=ckb-iq\n\
cs=cs\n\
da=da\n\
de=de\n\
el=el\n\
en=en\n\

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================

    public SearchRequestParams request() {
        return _searchRequestParams;
    }

    public void setPreference(final String preference) {
        _preference = preference;
    }

    public String getPreference() {
        return _preference;
    }

    // ===================================================================================