new TermRangeQueryCommand().register();
        new WildcardQueryCommand().register();
    }

    private void setQueryType(final String queryType) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String get(String propertyKey) {
                return fessConfig.get(propertyKey);
            }

        return getComponent(DATA_SERVICE);
    }

    public static SearchEngineClient getSearchEngineClient() {
        return getComponent(SEARCH_ENGINE_CLIENT);
    }

    public static FessConfig getFessConfig() {
        if (fessConfig != null) {
            return fessConfig;
        }
        fessConfig = getComponent(FessConfig.class);
        return fessConfig;
    }

    private void upgradeFrom14_8() {
        // nothing
    }

    private void upgradeFrom14_9() {
        // update mapping text files
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        final String fesenType = fessConfig.getFesenType();
        switch (fesenType) {
        case Constants.FESEN_TYPE_CLOUD:
        case Constants.FESEN_TYPE_AWS:
            // nothing

    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initialize {}", this.getClass().getSimpleName());
        }
        fessConfig = ComponentUtil.getFessConfig();
    }

    protected Hashtable<String, String> createEnvironment(final String initialContextFactory, final String securityAuthentication,