* -Dlog4j.shutdownHookEnabled=false<br>
     * -Dlog4j2.formatMsgNoLookups=true<br>
     * -Dlog4j2.disable.jmx=true<br>
     * -Dlog4j.skipJansi=true<br>
     * -Dsun.java2d.cmm=sun.java2d.cmm.kcms.KcmsServiceProvider<br>
     * -Dorg.apache.pdfbox.rendering.UsePureJavaCMYKConversion=true<br>
     *  */
    String JVM_CRAWLER_OPTIONS = "jvm.crawler.options";

        setSystemProperty(Constants.LDAP_INITIAL_CONTEXT_FACTORY, value);
    }

    default String getLdapInitialContextFactory() {
        return getSystemProperty(Constants.LDAP_INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
    }

    default void setLdapSecurityAuthentication(final String value) {
        setSystemProperty(Constants.LDAP_SECURITY_AUTHENTICATION, value);
    }

        }
        final Calendar cal = getCurrentCal();
        final int h = cal.get(Calendar.HOUR_OF_DAY);
        final int m = cal.get(Calendar.MINUTE);
        final int d = cal.get(Calendar.DAY_OF_WEEK); // SUN(1) - SAT(7)
        for (final IntervalRule rule : ruleList) {
            if (rule.isTarget(h, m, d)) {
                return rule.getDelay();
            }
        }
        return 0;
    }