* @return the preference value for GSA search requests, or null if not applicable
     */
    protected String processGsaSearchPreference(final HttpServletRequest req, final String query) {
        final String pref = ComponentUtil.getFessConfig().getQueryGsaDefaultPreference();
        if (PREFERENCE_QUERY.equals(pref)) {
            return Integer.toString(query.hashCode());
        }

public class BackupTests extends CrudTestBase {

    private static final String NAME_PREFIX = "backupTest_";
    private static final String API_PATH = "/api/admin/backup";
    private static final String LIST_ENDPOINT_SUFFIX = "files";
    private static final String ITEM_ENDPOINT_SUFFIX = "file";

    private static final String KEY_PROPERTY = "";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

public class DictTests extends CrudTestBase {

    private static final String NAME_PREFIX = "dictTest_";
    private static final String API_PATH = "/api/admin/dict";
    private static final String LIST_ENDPOINT_SUFFIX = "";
    private static final String ITEM_ENDPOINT_SUFFIX = "";

    private static final String KEY_PROPERTY = "";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

    @Override

public class SuggestTests extends CrudTestBase {

    private static final String NAME_PREFIX = "";
    private static final String API_PATH = "/api/admin/suggest";
    private static final String LIST_ENDPOINT_SUFFIX = "";
    private static final String ITEM_ENDPOINT_SUFFIX = "";

    private static final String KEY_PROPERTY = "";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

    @Override

    // ================
    abstract protected String getNamePrefix();

    abstract protected String getApiPath();

    abstract protected String getKeyProperty();

    abstract protected String getListEndpointSuffix();

    abstract protected String getItemEndpointSuffix();

    abstract protected Map<String, Object> createTestParam(int id);

    abstract protected Map<String, Object> getUpdateMap();

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

        Map<String, String> complexObject = new HashMap<>();
        complexObject.put("nested", "value");

        dataStoreParams.put("complexKey", complexObject);
        assertEquals(complexObject, dataStoreParams.get("complexKey"));

        String asString = dataStoreParams.getAsString("complexKey");
        assertNotNull(asString);
        assertTrue(asString.contains("nested"));
    }

    private static final String NAME_PREFIX = "searchListTest_";
    private static final String API_PATH = "/api/admin/searchlist";
    private static final String LIST_ENDPOINT_SUFFIX = "docs";
    private static final String ITEM_ENDPOINT_SUFFIX = "doc";

    private static final String KEY_PROPERTY = "title";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

    private static final String NAME_PREFIX = "groupTest_";
    private static final String API_PATH = "/api/admin/group";
    private static final String LIST_ENDPOINT_SUFFIX = "settings";
    private static final String ITEM_ENDPOINT_SUFFIX = "setting";

    private static final String KEY_PROPERTY = "name";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

public class LogTests extends CrudTestBase {

    private static final String NAME_PREFIX = "logTest_";
    private static final String API_PATH = "/api/admin/log";
    private static final String LIST_ENDPOINT_SUFFIX = "files";
    private static final String ITEM_ENDPOINT_SUFFIX = "file";

    private static final String KEY_PROPERTY = "";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }

public class GeneralTests extends CrudTestBase {

    private static final String NAME_PREFIX = "generalTest_";
    private static final String API_PATH = "/api/admin/general";
    private static final String LIST_ENDPOINT_SUFFIX = "";
    private static final String ITEM_ENDPOINT_SUFFIX = "";

    private static final String KEY_PROPERTY = "name";

    @Override
    protected String getNamePrefix() {
        return NAME_PREFIX;
    }