/* FIXME if we want to support non-contiguous segment merges */
private bool CommitMerge(MergePolicy.OneMerge merge, SegmentMerger merger, int mergedDocCount, SegmentReader mergedReader)
{
lock (this)
{
System.Diagnostics.Debug.Assert(TestPoint("startCommitMerge"));
if (hitOOM)
{
throw new System.SystemException("this writer hit an OutOfMemoryError; cannot complete merge");
}
if (infoStream != null)
Message("commitMerge: " + merge.SegString(directory) + " index=" + SegString());
System.Diagnostics.Debug.Assert(merge.registerDone);
// If merge was explicitly aborted, or, if rollback() or
// rollbackTransaction() had been called since our merge
// started (which results in an unqualified
// deleter.refresh() call that will remove any index
// file that current segments does not reference), we
// abort this merge
if (merge.IsAborted())
{
if (infoStream != null)
Message("commitMerge: skipping merge " + merge.SegString(directory) + ": it was aborted");
return false;
}
int start = EnsureContiguousMerge(merge);
CommitMergedDeletes(merge, mergedReader);
docWriter.RemapDeletes(segmentInfos, merger.GetDocMaps(), merger.GetDelCounts(), merge, mergedDocCount);
// If the doc store we are using has been closed and
// is in now compound format (but wasn't when we
// started), then we will switch to the compound
// format as well:
SetMergeDocStoreIsCompoundFile(merge);
merge.info.SetHasProx(merger.HasProx());
((System.Collections.IList) ((System.Collections.ArrayList) segmentInfos).GetRange(start, start + merge.segments.Count - start)).Clear();
System.Diagnostics.Debug.Assert(!segmentInfos.Contains(merge.info));
segmentInfos.Insert(start, merge.info);
CloseMergeReaders(merge, false);
// Must note the change to segmentInfos so any commits
// in-flight don't lose it:
Checkpoint();
// If the merged segments had pending changes, clear
// them so that they don't bother writing them to
// disk, updating SegmentInfo, etc.:
readerPool.Clear(merge.segments);
if (merge.optimize)
{
// cascade the optimize:
segmentsToOptimize[merge.info] = merge.info;
}
return true;
}
}
/* FIXME if we want to support non-contiguous segment merges */
private bool CommitMerge(MergePolicy.OneMerge merge, SegmentMerger merger, int mergedDocCount)
{
lock (this)
{
System.Diagnostics.Debug.Assert(TestPoint("startCommitMerge"));
if (hitOOM)
return false;
if (infoStream != null)
Message("commitMerge: " + merge.SegString(directory) + " index=" + SegString());
System.Diagnostics.Debug.Assert(merge.registerDone);
// If merge was explicitly aborted, or, if rollback() or
// RollbackTransaction() had been called since our merge
// started (which results in an unqualified
// deleter.Refresh() call that will remove any index
// file that current segments does not reference), we
// abort this merge
if (merge.IsAborted())
{
if (infoStream != null)
Message("commitMerge: skipping merge " + merge.SegString(directory) + ": it was aborted");
deleter.Refresh(merge.info.name);
return false;
}
int start = EnsureContiguousMerge(merge);
CommitMergedDeletes(merge);
docWriter.RemapDeletes(segmentInfos, merger.GetDocMaps(), merger.GetDelCounts(), merge, mergedDocCount);
// Simple optimization: if the doc store we are using
// has been closed and is in now compound format (but
// wasn't when we started), then we will switch to the
// compound format as well:
string mergeDocStoreSegment = merge.info.GetDocStoreSegment();
if (mergeDocStoreSegment != null && !merge.info.GetDocStoreIsCompoundFile())
{
int size = segmentInfos.Count;
for (int i = 0; i < size; i++)
{
SegmentInfo info = segmentInfos.Info(i);
string docStoreSegment = info.GetDocStoreSegment();
if (docStoreSegment != null &&
docStoreSegment.Equals(mergeDocStoreSegment) &&
info.GetDocStoreIsCompoundFile())
{
merge.info.SetDocStoreIsCompoundFile(true);
break;
}
}
}
merge.info.SetHasProx(merger.HasProx());
//segmentInfos.RemoveRange(start, start + merge.segments.Count);
segmentInfos.RemoveRange(start, merge.segments.Count);
System.Diagnostics.Debug.Assert(!segmentInfos.Contains(merge.info));
segmentInfos.Insert(start, merge.info);
// Must checkpoint before decrefing so any newly
// referenced files in the new merge.info are incref'd
// first:
Checkpoint();
DecrefMergeSegments(merge);
if (merge.optimize)
segmentsToOptimize[merge.info] = merge.info;
return true;
}
}