// Apply buffered delete terms, queries and docIDs to the
// provided reader
private bool ApplyDeletes(IndexReader reader, int docIDStart)
{
lock (this)
{
int docEnd = docIDStart + reader.MaxDoc;
bool any = false;
System.Diagnostics.Debug.Assert(CheckDeleteTerm(null));
// Delete by term
TermDocs docs = reader.TermDocs();
try
{
foreach(KeyValuePair<Term, BufferedDeletes.Num> entry in deletesFlushed.terms)
{
Term term = entry.Key;
// LUCENE-2086: we should be iterating a TreeMap,
// here, so terms better be in order:
System.Diagnostics.Debug.Assert(CheckDeleteTerm(term));
docs.Seek(term);
int limit = entry.Value.GetNum();
while (docs.Next())
{
int docID = docs.Doc;
if (docIDStart + docID >= limit)
break;
reader.DeleteDocument(docID);
any = true;
}
}
}
finally
{
docs.Close();
}
// Delete by docID
foreach(int docIdInt in deletesFlushed.docIDs)
{
int docID = docIdInt;
if (docID >= docIDStart && docID < docEnd)
{
reader.DeleteDocument(docID - docIDStart);
any = true;
}
}
// Delete by query
IndexSearcher searcher = new IndexSearcher(reader);
foreach(KeyValuePair<Query, int> entry in deletesFlushed.queries)
{
Query query = (Query) entry.Key;
int limit = (int)entry.Value;
Weight weight = query.Weight(searcher);
Scorer scorer = weight.Scorer(reader, true, false);
if (scorer != null)
{
while (true)
{
int doc = scorer.NextDoc();
if (((long) docIDStart) + doc >= limit)
break;
reader.DeleteDocument(doc);
any = true;
}
}
}
searcher.Close();
return any;
}
}
