Beispiel #1
0
        public override SegmentInfo Read(Directory dir, string segment, IOContext context)
        {
            string             fileName = IndexFileNames.SegmentFileName(segment, "", Lucene46SegmentInfoFormat.SI_EXTENSION);
            ChecksumIndexInput input    = dir.OpenChecksumInput(fileName, context);
            bool success = false;

            try
            {
                int    codecVersion = CodecUtil.CheckHeader(input, Lucene46SegmentInfoFormat.CODEC_NAME, Lucene46SegmentInfoFormat.VERSION_START, Lucene46SegmentInfoFormat.VERSION_CURRENT);
                string version      = input.ReadString();
                int    docCount     = input.ReadInt32();
                if (docCount < 0)
                {
                    throw new CorruptIndexException("invalid docCount: " + docCount + " (resource=" + input + ")");
                }
                bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
                IDictionary <string, string> diagnostics = input.ReadStringStringMap();
                ISet <string> files = input.ReadStringSet();

                if (codecVersion >= Lucene46SegmentInfoFormat.VERSION_CHECKSUM)
                {
                    CodecUtil.CheckFooter(input);
                }
                else
                {
#pragma warning disable 612, 618
                    CodecUtil.CheckEOF(input);
#pragma warning restore 612, 618
                }

                SegmentInfo si = new SegmentInfo(dir, version, segment, docCount, isCompoundFile, null, diagnostics);
                si.SetFiles(files);

                success = true;

                return(si);
            }
            finally
            {
                if (!success)
                {
                    IOUtils.DisposeWhileHandlingException(input);
                }
                else
                {
                    input.Dispose();
                }
            }
        }