static IndexSearcher CreateOrGetIndexSearcher(string luceneIndex)
{
IndexSearcher indexSearcher;
if (!IndexSearcherPool.TryGetValue(luceneIndex, out indexSearcher) || IndexGotChanged.TryGetValue(luceneIndex, out var indexChangedTimes) && indexChangedTimes > 0)
{
lock (syncLockForSearcher)
{
if (!IndexSearcherPool.TryGetValue(luceneIndex, out indexSearcher))
{
indexSearcher = new IndexSearcher(CreateOrGetIndexReader(luceneIndex, false));
IndexSearcherPool.TryAdd(luceneIndex, indexSearcher);
}
else if (IndexGotChanged.TryGetValue(luceneIndex, out indexChangedTimes) && indexChangedTimes > 0)
{
indexSearcher = new IndexSearcher(CreateOrGetIndexReader(luceneIndex, true));
IndexSearcherPool.AddOrUpdate(luceneIndex, indexSearcher, (u, v) => indexSearcher);
IndexGotChanged.AddOrUpdate(luceneIndex, 0, (u, v) => 0);
}
}
}
if (!indexSearcher.IndexReader.TryIncRef())
{
return(CreateOrGetIndexSearcher(luceneIndex));
}
return(indexSearcher);
}
