}

    @Override
    public long getDocumentSize() {
        return indexUpdateCallback.getDocumentSize();
    }

    @Override
    public long getExecuteTime() {
        return indexUpdateCallback.getExecuteTime();
    }

    public void setMaxDeleteDocumentCacheSize(final int maxDeleteDocumentCacheSize) {
        this.maxDeleteDocumentCacheSize = maxDeleteDocumentCacheSize;
    }

            logger.info("[EXEC TIME] crawling time: {}ms", execTime);
        }

        crawlingInfoHelper.putToInfoMap(Constants.DATA_INDEX_EXEC_TIME, Long.toString(indexUpdateCallback.getExecuteTime()));
        crawlingInfoHelper.putToInfoMap(Constants.DATA_INDEX_SIZE, Long.toString(indexUpdateCallback.getDocumentSize()));

        for (final String sid : sessionIdList) {
            // remove config

        } catch (final InterruptedException e) {
            logger.warn("Interrupted index update.", e);
        }

        crawlingInfoHelper.putToInfoMap(Constants.WEB_FS_INDEX_EXEC_TIME, Long.toString(indexUpdater.getExecuteTime()));
        crawlingInfoHelper.putToInfoMap(Constants.WEB_FS_INDEX_SIZE, Long.toString(indexUpdater.getDocumentSize()));

        if (systemHelper.isForceStop()) {
            return;
        }

    }

    private void forceStop() {
        systemHelper.setForceStop(true);
        for (final Crawler crawler : crawlerList) {
            crawler.stop();
        }
    }

    public long getExecuteTime() {
        return executeTime;
    }

    public List<String> getSessionIdList() {
        return sessionIdList;
    }

    public void setSessionIdList(final List<String> sessionIdList) {