Exemple #1
0
        public override void Write(Directory directory, string segmentName, string segmentSuffix, FieldInfos infos, IOContext context)
        {
            string      fileName = IndexFileNames.SegmentFileName(segmentName, "", Lucene42FieldInfosFormat.EXTENSION);
            IndexOutput output   = directory.CreateOutput(fileName, context);
            bool        success  = false;

            try
            {
                CodecUtil.WriteHeader(output, Lucene42FieldInfosFormat.CODEC_NAME, Lucene42FieldInfosFormat.FORMAT_CURRENT);
                output.WriteVInt(infos.Size());
                foreach (FieldInfo fi in infos)
                {
                    FieldInfo.IndexOptions?indexOptions = fi.FieldIndexOptions;
                    sbyte bits = 0x0;
                    if (fi.HasVectors())
                    {
                        bits |= Lucene42FieldInfosFormat.STORE_TERMVECTOR;
                    }
                    if (fi.OmitsNorms())
                    {
                        bits |= Lucene42FieldInfosFormat.OMIT_NORMS;
                    }
                    if (fi.HasPayloads())
                    {
                        bits |= Lucene42FieldInfosFormat.STORE_PAYLOADS;
                    }
                    if (fi.Indexed)
                    {
                        bits |= Lucene42FieldInfosFormat.IS_INDEXED;
                        Debug.Assert(indexOptions >= FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS || !fi.HasPayloads());
                        if (indexOptions == FieldInfo.IndexOptions.DOCS_ONLY)
                        {
                            bits |= Lucene42FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS;
                        }
                        else if (indexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS)
                        {
                            bits |= Lucene42FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS;
                        }
                        else if (indexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS)
                        {
                            bits |= Lucene42FieldInfosFormat.OMIT_POSITIONS;
                        }
                    }
                    output.WriteString(fi.Name);
                    output.WriteVInt(fi.Number);
                    output.WriteByte(bits);

                    // pack the DV types in one byte
                    sbyte dv  = DocValuesByte(fi.DocValuesType);
                    sbyte nrm = DocValuesByte(fi.NormType);
                    Debug.Assert((dv & (~0xF)) == 0 && (nrm & (~0x0F)) == 0);
                    sbyte val = unchecked ((sbyte)(0xff & ((nrm << 4) | dv)));
                    output.WriteByte(val);
                    output.WriteStringStringMap(fi.Attributes());
                }
                success = true;
            }
            finally
            {
                if (success)
                {
                    output.Dispose();
                }
                else
                {
                    IOUtils.CloseWhileHandlingException(output);
                }
            }
        }
Exemple #2
0
        public override void Write(Directory directory, string segmentName, string segmentSuffix, FieldInfos infos, IOContext context)
        {
            string      fileName = IndexFileNames.SegmentFileName(segmentName, "", FIELD_INFOS_EXTENSION);
            IndexOutput output   = directory.CreateOutput(fileName, context);
            bool        success  = false;

            try
            {
                output.WriteVInt(FORMAT_PREFLEX_RW);
                output.WriteVInt(infos.Size());
                foreach (FieldInfo fi in infos)
                {
                    sbyte bits = 0x0;
                    if (fi.HasVectors())
                    {
                        bits |= STORE_TERMVECTOR;
                    }
                    if (fi.OmitsNorms())
                    {
                        bits |= OMIT_NORMS;
                    }
                    if (fi.HasPayloads())
                    {
                        bits |= STORE_PAYLOADS;
                    }
                    if (fi.Indexed)
                    {
                        bits |= IS_INDEXED;
                        Debug.Assert(fi.FieldIndexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS || !fi.HasPayloads());
                        if (fi.FieldIndexOptions == FieldInfo.IndexOptions.DOCS_ONLY)
                        {
                            bits |= OMIT_TERM_FREQ_AND_POSITIONS;
                        }
                        else if (fi.FieldIndexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS)
                        {
                            bits |= OMIT_POSITIONS;
                        }
                    }
                    output.WriteString(fi.Name);

                    /*
                     * we need to write the field number since IW tries
                     * to stabelize the field numbers across segments so the
                     * FI ordinal is not necessarily equivalent to the field number
                     */
                    output.WriteInt(fi.Number);
                    output.WriteByte(bits);
                    if (fi.Indexed && !fi.OmitsNorms())
                    {
                        // to allow null norm types we need to indicate if norms are written
                        // only in RW case
                        output.WriteByte((sbyte)(fi.NormType == null ? 0 : 1));
                    }
                    Debug.Assert(fi.Attributes() == null); // not used or supported
                }
                success = true;
            }
            finally
            {
                if (success)
                {
                    output.Dispose();
                }
                else
                {
                    IOUtils.CloseWhileHandlingException(output);
                }
            }
        }
        public override void Write(Directory directory, string segmentName, string segmentSuffix, FieldInfos infos, IOContext context)
        {
            string fileName = IndexFileNames.SegmentFileName(segmentName, segmentSuffix, Lucene46FieldInfosFormat.EXTENSION);
            IndexOutput output = directory.CreateOutput(fileName, context);
            bool success = false;
            try
            {
                CodecUtil.WriteHeader(output, Lucene46FieldInfosFormat.CODEC_NAME, Lucene46FieldInfosFormat.FORMAT_CURRENT);
                output.WriteVInt(infos.Size());
                foreach (FieldInfo fi in infos)
                {
                    FieldInfo.IndexOptions? indexOptions = fi.FieldIndexOptions;
                    sbyte bits = 0x0;
                    if (fi.HasVectors())
                    {
                        bits |= Lucene46FieldInfosFormat.STORE_TERMVECTOR;
                    }
                    if (fi.OmitsNorms())
                    {
                        bits |= Lucene46FieldInfosFormat.OMIT_NORMS;
                    }
                    if (fi.HasPayloads())
                    {
                        bits |= Lucene46FieldInfosFormat.STORE_PAYLOADS;
                    }
                    if (fi.Indexed)
                    {
                        bits |= Lucene46FieldInfosFormat.IS_INDEXED;
                        Debug.Assert(indexOptions >= FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS || !fi.HasPayloads());
                        if (indexOptions == FieldInfo.IndexOptions.DOCS_ONLY)
                        {
                            bits |= Lucene46FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS;
                        }
                        else if (indexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS)
                        {
                            bits |= Lucene46FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS;
                        }
                        else if (indexOptions == FieldInfo.IndexOptions.DOCS_AND_FREQS)
                        {
                            bits |= Lucene46FieldInfosFormat.OMIT_POSITIONS;
                        }
                    }
                    output.WriteString(fi.Name);
                    output.WriteVInt(fi.Number);
                    output.WriteByte((byte)bits);

                    // pack the DV types in one byte
                    var dv = DocValuesByte(fi.DocValuesType);
                    var nrm = DocValuesByte(fi.NormType);
                    Debug.Assert((dv & (~0xF)) == 0 && (nrm & (~0x0F)) == 0);
                    var val = unchecked((sbyte)(0xff & ((nrm << 4) | dv)));
                    output.WriteByte((byte)val);
                    output.WriteLong(fi.DocValuesGen);
                    output.WriteStringStringMap(fi.Attributes());
                }
                CodecUtil.WriteFooter(output);
                success = true;
            }
            finally
            {
                if (success)
                {
                    output.Dispose();
                }
                else
                {
                    IOUtils.CloseWhileHandlingException(output);
                }
            }
        }