/**
* Disable the cursors opened on the head log file log, by closing their underlying cursor.
* Returns the state of each cursor just before the close operation.
*
* @return the pairs (cursor, cursor state) for each cursor pointing to head log file.
* @throws ChangelogException If an error occurs.
*/
private List<Pair<AbortableLogCursor<K, V>, CursorState<K, V>>> disableOpenedCursorsOnHead()
throws ChangelogException {
final List<Pair<AbortableLogCursor<K, V>, CursorState<K, V>>> openCursorsStates =
new ArrayList<>();
final LogFile<K, V> headLogFile = getHeadLogFile();
for (AbortableLogCursor<K, V> cursor : openCursors) {
if (cursor.isAccessingLogFile(headLogFile)) {
openCursorsStates.add(Pair.of(cursor, cursor.getState()));
cursor.closeUnderlyingCursor();
}
}
return openCursorsStates;
}
