int computeCheckPeriod() {
CalendarRollingCalendar rollingCalendar =
new CalendarRollingCalendar(gmtTimeZone, Locale.ENGLISH);
// set sate to 1970-01-01 00:00:00 GMT
Date epoch = new Date(0);
if (datePattern != null) {
for (int i = TOP_OF_MINUTE; i <= TOP_OF_MONTH; i++) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat(datePattern);
simpleDateFormat.setTimeZone(gmtTimeZone); // do all date
// formatting in GMT
String r0 = simpleDateFormat.format(epoch);
rollingCalendar.setType(i);
Date next = new Date(rollingCalendar.getNextCheckMillis(epoch));
String r1 = simpleDateFormat.format(next);
// logger.info("Type = "+i+", r0 = "+r0+", r1 = "+r1);
if (r0 != null && r1 != null && !r0.equals(r1)) {
return i;
}
}
}
return TOP_OF_TROUBLE; // Deliberately head for trouble...
}
/**
* This method differentiates RollingFileAppender from its super class.
*
* @since 0.9.0
*/
protected void subAppend(LoggingEvent event) {
long n = System.currentTimeMillis();
if (n >= nextCheck) {
now.setTime(n);
nextCheck = rc.getNextCheckMillis(now);
try {
rollOver(DailyRollingFileType);
} catch (IOException ioe) {
LogLog.error("rollOver() failed.", ioe);
}
} else if ((fileName != null) && ((CountingQuietWriter) qw).getCount() >= maxFileSize) {
try {
rollOver(RollingFileType);
} catch (IOException ioe) {
LogLog.error("rollOver() failed.", ioe);
}
}
super.subAppend(event);
}
public void activateOptions() {
if (datePattern != null && name != null) {
now.setTime(System.currentTimeMillis());
sdf = new SimpleDateFormat(datePattern);
int type = computeCheckPeriod();
printPeriodicity(type);
rc.setType(type);
fileName = this.buildLogFilePathAnddeleteTimeoutFile(-1);
File file = new File(fileName);
// Strfilename = String.format("[%s]%s_%d",
// sdf.format(now),Strfilename,1);
scheduledDate = sdf.format(new Date(file.lastModified()));
/*
* scheduledFilename = String.format("[%s]%s.%s", sdf.format(new
* Date( file.lastModified())), name, extname);
*/
// Date(file.lastModified()));
} else {
LogLog.error("Either File or DatePattern options are not set for appender [" + name + "].");
}
super.activateOptions();
}