throw new IllegalStateException(
"FileNamePattern [" + fileNamePattern.getPattern()
+ "] does not contain a valid DateToken");
}
rc = new RollingCalendar();
rc.init(dtc.getDatePattern());
getLogger().debug(
"The date pattern is '{}' from file name pattern '{}'.",
dtc.getDatePattern(), fileNamePattern.getPattern());
rc.printPeriodicity();