/**
* Updates the Copy with found checksum
*
* @param copy
* @param checksum
*/
private synchronized void updateCopy(Copy copy, String checksum) {
Session session = HibernateUtil.openSession();
session.beginTransaction();
copy.setChecksumDate(new Date());
copy.setChecksum(checksum);
session.update(copy);
session.getTransaction().commit();
session.close();
}
/**
* Re-Computing Checksum for Copies
*
* @author Jens Peters
*/
@Override
public void scheduleTaskImplementation() {
GregorianCalendar cal = new GregorianCalendar();
int hour = cal.get(Calendar.HOUR_OF_DAY);
int numCopyjobs = getNumCopyjobs(hour);
logger.debug(
"number of copyjobs: current=" + numCopyjobs + " & allowed=" + allowedNumOfCopyjobs);
logger.debug(
"current time: " + hour + "; allowed time: " + startTime + " - " + endTime + " hour");
if (allowedTime(hour) || numCopyjobs <= allowedNumOfCopyjobs) {
try {
Copy copy = null;
if ((copy = fetchCopy(node.getId())) == null) {
logger.warn("Found no copy in custody to compute Checksum for ...");
return;
}
if (secondaryCopyPrefix == null) {
logger.error("SecondaryCopyPrefix is null");
return;
}
String dest = secondaryCopyPrefix + "/" + copy.getPath();
logger.info("Checking existence in custody " + dest);
if (gridFacade.exists(dest)) {
Calendar oneMonthAgo = Calendar.getInstance();
oneMonthAgo.add(Calendar.DAY_OF_YEAR, trustChecksumForDays * (-1));
logger.debug("will look for Checksums older than " + oneMonthAgo.getTime());
String cs = "";
if (copy.getChecksumDate() == null) {
cs = gridFacade.reComputeAndGetChecksumInCustody(dest);
logger.info("checksum in custody is " + cs + " for " + dest);
} else if (copy.getChecksumDate().before(oneMonthAgo.getTime())) {
cs = gridFacade.reComputeAndGetChecksumInCustody(dest);
logger.info("recompute old checksum in custody, now is " + cs + " for " + dest);
} else {
cs = copy.getChecksum();
logger.info("Checksum does not yet need recomputation. Checksum is " + cs);
}
updateCopy(copy, cs);
} else logger.error(dest + " does not exist.");
} catch (Exception e) {
logger.error("Error in ChecksumWorker " + e.getMessage(), e);
}
} else {
logger.debug("Skipping copy checking ...");
}
}
