Remove() public method

Remove the provided SegmentCommitInfo.

WARNING: O(N) cost

public Remove ( Lucene.Net.Index.SegmentCommitInfo si ) : void
si Lucene.Net.Index.SegmentCommitInfo
return void
Esempio n. 1
0
 public virtual void Remove(string[] segs)
 {
     foreach (string n in segs)
     {
         int idx = GetIdx(n);
         infos.Remove(idx);
     }
     infos.Changed();
     infos.Commit(fsDir);
 }
        /// <summary>
        /// Used by near real-time search </summary>
        internal static DirectoryReader Open(IndexWriter writer, SegmentInfos infos, bool applyAllDeletes)
        {
            // IndexWriter synchronizes externally before calling
            // us, which ensures infos will not change; so there's
            // no need to process segments in reverse order
            int numSegments = infos.Count;

            IList <SegmentReader> readers = new List <SegmentReader>();
            Directory             dir     = writer.Directory;

            SegmentInfos segmentInfos = (SegmentInfos)infos.Clone();
            int          infosUpto    = 0;
            bool         success      = false;

            try
            {
                for (int i = 0; i < numSegments; i++)
                {
                    // NOTE: important that we use infos not
                    // segmentInfos here, so that we are passing the
                    // actual instance of SegmentInfoPerCommit in
                    // IndexWriter's segmentInfos:
                    SegmentCommitInfo info = infos.Info(i);
                    Debug.Assert(info.Info.Dir == dir);
                    ReadersAndUpdates rld = writer.readerPool.Get(info, true);
                    try
                    {
                        SegmentReader reader = rld.GetReadOnlyClone(IOContext.READ);
                        if (reader.NumDocs > 0 || writer.KeepFullyDeletedSegments)
                        {
                            // Steal the ref:
                            readers.Add(reader);
                            infosUpto++;
                        }
                        else
                        {
                            reader.DecRef();
                            segmentInfos.Remove(infosUpto);
                        }
                    }
                    finally
                    {
                        writer.readerPool.Release(rld);
                    }
                }

                writer.IncRefDeleter(segmentInfos);

                StandardDirectoryReader result = new StandardDirectoryReader(dir, readers.ToArray(), writer, segmentInfos, writer.Config.ReaderTermsIndexDivisor, applyAllDeletes);
                success = true;
                return(result);
            }
            finally
            {
                if (!success)
                {
                    foreach (SegmentReader r in readers)
                    {
                        try
                        {
                            r.DecRef();
                        }
#pragma warning disable 168
                        catch (Exception th)
#pragma warning restore 168
                        {
                            // ignore any exception that is thrown here to not mask any original
                            // exception.
                        }
                    }
                }
            }
        }