private static final String VIEW_HELPER = "viewHelper";

    private static final String SYSTEM_HELPER = "systemHelper";

    private static final String CRAWLER_PROPERTIES = "systemProperties";

    private static final String JOB_EXECUTOR_SUFFIX = "JobExecutor";

    private static final String KEY_MATCH_HELPER = "keyMatchHelper";

    private static final String INDEXING_HELPER = "indexingHelper";