stats.put("jvm", getJvmObj());
        stats.put("os", getOsObj());
        stats.put("process", getProcessObj());
        stats.put("engine", getEngineObj());
        stats.put("fs", getFsObj());
        return asJson(new ApiStatsResponse().stats(stats).status(ApiResult.Status.OK).result());
    }

    private FsObj[] getFsObj() {
        return Arrays.stream(File.listRoots()).map(f -> {

                if (form.maxAccessCount != null) {
                    fConfig.setMaxAccessCount(form.maxAccessCount);
                }
                fConfig.setName(configName);
                fConfig.setNumOfThread(getDefaultInteger("default.config.file.numOfThread", Constants.DEFAULT_NUM_OF_THREAD_FOR_FS));

    public static final String WEB_FS_CRAWLER_START_TIME = "WebFsCrawlStartTime";

    public static final String WEB_FS_CRAWLER_END_TIME = "WebFsCrawlEndTime";

    public static final String DATA_CRAWLER_START_TIME = "DataCrawlStartTime";

    public static final String DATA_CRAWLER_END_TIME = "DataCrawlEndTime";

    public static final String WEB_FS_CRAWLING_EXEC_TIME = "WebFsCrawlExecTime";

                    // crawl web
                    writeTimeToSessionInfo(crawlingInfoHelper, Constants.WEB_FS_CRAWLER_START_TIME);
                    webFsIndexHelper.crawl(options.sessionId, webConfigIdList, fileConfigIdList);
                    writeTimeToSessionInfo(crawlingInfoHelper, Constants.WEB_FS_CRAWLER_END_TIME);
                }, WEB_FS_CRAWLING_PROCESS);
                webFsCrawlerThread.start();
            }

            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;
        }

import java.util.Map;

import javax.annotation.Resource;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.crawler.client.fs.FileSystemClient;
import org.codelibs.fess.crawler.client.ftp.FtpClient;
import org.codelibs.fess.crawler.client.smb.SmbClient;
import org.codelibs.fess.crawler.entity.ResponseData;