protected synchronized void updateCursor(ManagedCursorImpl cursor, Position newPosition)
throws InterruptedException, ManagedLedgerException {
checkFenced();
// First update the metadata store, so that if we don't succeed we have
// not changed any other state
store.updateConsumer(name, cursor.getName(), newPosition);
Position oldPosition = cursor.setAcknowledgedPosition(newPosition);
cursors.cursorUpdated(cursor);
if (oldPosition.getLedgerId() != newPosition.getLedgerId()) {
// Only trigger a trimming when switching to the next ledger
trimConsumedLedgersInBackground();
}
}
/*
* (non-Javadoc)
*
* @see org.apache.bookkeeper.mledger.ManagedLedger#openCursor(java.
* lang.String)
*/
@Override
public synchronized ManagedCursor openCursor(String cursorName)
throws InterruptedException, ManagedLedgerException {
checkFenced();
ManagedCursor cursor = cursors.get(cursorName);
if (cursor == null) {
// Create a new one and persist it
Position position = new Position(currentLedger.getId(), currentLedger.getLastAddConfirmed());
cursor = new ManagedCursorImpl(this, cursorName, position);
store.updateConsumer(name, cursorName, position);
cursors.add(cursor);
}
log.debug("[{}] Opened new cursor: {}", this.name, cursor);
return cursor;
}
