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