gets the timestamp of the log statement in milliseconds since unix epoch . concode_field_sep Level level concode_elem_sep ThreadLocal<SimpleDateFormat> DATE_FORMAT concode_elem_sep String message concode_elem_sep long timestamp concode_field_sep Level getLevel concode_elem_sep Map<String,Object> toMap concode_elem_sep String getMessage concode_elem_sep String toString concode_elem_sep SimpleDateFormat initialValue
long function ( ) { return timestamp ; }