/**
* @return the next copy
* @author Jens Peters
*/
private synchronized Copy fetchCopy(int localNodeId) {
Session session = null;
try {
session = HibernateUtil.openSession();
session.beginTransaction();
@SuppressWarnings("rawtypes")
List l = null;
l =
session
.createSQLQuery(
"select id from copies c where c.node_id = ?1 "
+ "order by c.checksumdate asc NULLS FIRST")
.setParameter("1", localNodeId)
.setReadOnly(true)
.list();
@SuppressWarnings("rawtypes")
List k = null;
k =
session
.createQuery("from Copy c where c.id = ?1 ")
.setParameter("1", l.get(0))
.setReadOnly(true)
.list();
Copy copy = (Copy) k.get(0);
session.close();
return copy;
} catch (Exception e) {
if (session != null) session.close();
return null;
}
}
/**
* 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();
}
public void init() {
node = new Node();
node.setId(localNodeId);
setpSystem(new PreservationSystem());
getPSystem().setId(1);
Session session = HibernateUtil.openSession();
session.beginTransaction();
session.refresh(getPSystem());
session.refresh(node);
session.getTransaction().commit();
session.close();
}
/**
* @return the number of copyjobs
* @author Polina Gubaidullina
*/
private int getNumCopyjobs(int localNodeId) {
int numCopyJobs = 0;
Session session = null;
try {
session = HibernateUtil.openSession();
session.beginTransaction();
@SuppressWarnings("rawtypes")
List l = null;
l =
session
.createSQLQuery("select count(id) as count from copyjob;")
.addScalar("count", IntegerType.INSTANCE)
.list();
numCopyJobs = (Integer) l.get(0);
session.close();
} catch (Exception e) {
if (session != null) session.close();
}
return numCopyJobs;
}