private String getDateTime() {
            DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss zzz");
            dateFormat.setTimeZone(TimeZone.getTimeZone("UTC"));
            Date date = new Date();
            return dateFormat.format(date);
        }
An abstract class that can be subclassed by different visitor handlers.

@author Thomas Gundersen
vespaclient-java/src/main/java/com/yahoo/vespavisit/VdsVisitHandler.java