/** Cancels all companions for a given file. */
private synchronized void cancelCompanions(PnfsId pnfsId, String cause) {
for (Companion companion : _companions.values()) {
if (pnfsId.equals(companion.getPnfsId())) {
companion.cancel(cause);
}
}
}
@Override
@Transactional(readOnly = true)
public Collection<Pin> getPins(PnfsId pnfsId) {
PersistenceManager pm = _pmf.getPersistenceManager();
Query query = pm.newQuery(Pin.class, "_pnfsId == :pnfsId");
Collection<Pin> pins = (Collection<Pin>) query.execute(pnfsId.toString());
return pm.detachCopyAll(pins);
}
@Override
@Transactional(readOnly = true)
public Pin getPin(PnfsId pnfsId, String requestId) {
PersistenceManager pm = _pmf.getPersistenceManager();
Query query = pm.newQuery(Pin.class, "_pnfsId == :pnfsId && _requestId == :requestId");
query.setUnique(true);
Pin pin = (Pin) query.execute(pnfsId.toString(), requestId);
return (pin == null) ? null : pm.detachCopy(pin);
}
@Override
@Transactional
public void deletePin(PnfsId pnfsId) {
PersistenceManager pm = _pmf.getPersistenceManager();
pm.newQuery(Pin.class, "_pnfsId == :pnfsId").deletePersistentAll(pnfsId.toString());
}
private String toImageName(PnfsId id) {
return id.toString();
}