public virtual SegmentFile Prune(long pruneIndex)
{
lock (this)
{
IEnumerator <SegmentFile> itr = _allSegments.GetEnumerator();
//JAVA TO C# CONVERTER TODO TASK: Java iterators are only converted within the context of 'while' and 'for' loops:
SegmentFile notDisposed = itr.next(); // we should always leave at least one segment
int firstRemaining = 0;
while (itr.MoveNext())
{
SegmentFile current = itr.Current;
if (current.Header().prevFileLastIndex() > pruneIndex)
{
break;
}
if (!notDisposed.TryClose())
{
break;
}
_log.info("Pruning %s", notDisposed);
if (!notDisposed.Delete())
{
_log.error("Failed to delete %s", notDisposed);
break;
}
// TODO: Sync the parent directory. Also consider handling fs operations under its own lock.
firstRemaining++;
notDisposed = current;
}
_rangeMap.remove(notDisposed.Header().prevIndex() + 1);
_allSegments.RemoveRange(0, firstRemaining);
return(notDisposed);
}
}