protected String name;

    protected int maxRedirectCount = 10;

    protected Boolean available = null;

    public void register() {
        ComponentUtil.getThumbnailManager().add(this);
    }

    public void addCondition(final String key, final String regex) {
        final String value = conditionMap.get(key);
        if (StringUtil.isBlank(value)) {

        }
        try {
            if (fessConfig.isThumbnailCrawlerEnabled()) {
                final ThumbnailManager thumbnailManager = ComponentUtil.getThumbnailManager();
                final String thumbnailField = fessConfig.getIndexFieldThumbnail();
                docList.stream().forEach(doc -> {
                    if (!thumbnailManager.offer(doc)) {

                cmdList.add("-Dpdfbox.fontcache=" + ownTmpDir.getAbsolutePath());
            } else {
                ownTmpDir = null;
            }
        }

        cmdList.add(ComponentUtil.getThumbnailManager().getThumbnailPathOption());

        if (!jvmOptions.isEmpty()) {
            jvmOptions.stream().filter(StringUtil::isNotBlank).forEach(cmdList::add);
        }

        return getComponent(PERMISSION_HELPER);
    }

    public static SsoManager getSsoManager() {
        return getComponent(SSO_MANAGER);
    }

    public static ThumbnailManager getThumbnailManager() {
        return getComponent(THUMBNAIL_MANAGER);
    }

    public static AuthenticationManager getAuthenticationManager() {
        return getComponent(AUTHENTICATION_MANAGER);
    }