visit
Visits a date/time log message argument with formatting specified by %t or similar.
Note that because this method is called based on the specified format (and not the argument type) it may visit arguments whose type is not a known date/time value. This is necessary to permit new date/time types to be supported by different logging backends (e.g. JodaTime).
Parameters
value
the non-null log message argument.
format
the date/time format specifier.
options
formatting options.