@Override
            public void init() {
                fessConfig = new FessConfig.SimpleImpl() {
                    @Override
                    public Integer getSuggestPopularWordCacheSizeAsInteger() {
                        return 1000;
                    }

                    @Override
                    public Integer getSuggestPopularWordCacheExpireAsInteger() {

        }
        fessConfig = ComponentUtil.getFessConfig();
        cache = CacheBuilder.newBuilder()
                .maximumSize(fessConfig.getSuggestPopularWordCacheSizeAsInteger().longValue())
                .expireAfterWrite(fessConfig.getSuggestPopularWordCacheExpireAsInteger().longValue(), TimeUnit.MINUTES)
                .build();
    }

    /**