/// <summary>
/// Returns file names for shared doc stores, if any, else
/// <c>null</c>.
/// </summary>
public static ISet <string> GetDocStoreFiles(SegmentInfo info)
{
if (Lucene3xSegmentInfoFormat.GetDocStoreOffset(info) != -1)
{
string dsName = Lucene3xSegmentInfoFormat.GetDocStoreSegment(info);
ISet <string> files = new JCG.HashSet <string>();
if (Lucene3xSegmentInfoFormat.GetDocStoreIsCompoundFile(info))
{
files.Add(IndexFileNames.SegmentFileName(dsName, "", COMPOUND_FILE_STORE_EXTENSION));
}
else
{
files.Add(IndexFileNames.SegmentFileName(dsName, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(dsName, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(dsName, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(dsName, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(dsName, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
return(files);
}
else
{
return(null);
}
}
public override DocValuesConsumer FieldsConsumer(SegmentWriteState state)
{
if (!LuceneTestCase.OLD_FORMAT_IMPERSONATION_IS_ACTIVE)
{
return(base.FieldsConsumer(state));
}
else
{
string filename = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, "dv", IndexFileNames.COMPOUND_FILE_EXTENSION);
return(new Lucene40DocValuesWriter(state, filename, Lucene40FieldInfosReader.LEGACY_DV_TYPE_KEY));
}
}
public override DocValuesConsumer NormsConsumer(SegmentWriteState state)
{
if (!_oldFormatImpersonationIsActive)
{
return(base.NormsConsumer(state));
}
else
{
string filename = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, "nrm", IndexFileNames.COMPOUND_FILE_EXTENSION);
return(new Lucene40DocValuesWriter(state, filename, Lucene40FieldInfosReader.LEGACY_NORM_TYPE_KEY));
}
}
/// <summary>
/// Save a single segment's info. </summary>
public override void Write(Directory dir, SegmentInfo si, FieldInfos fis, IOContext ioContext)
{
string fileName = IndexFileNames.SegmentFileName(si.Name, "", Lucene46SegmentInfoFormat.SI_EXTENSION);
si.AddFile(fileName);
IndexOutput output = dir.CreateOutput(fileName, ioContext);
bool success = false;
try
{
CodecUtil.WriteHeader(output, Lucene46SegmentInfoFormat.CODEC_NAME, Lucene46SegmentInfoFormat.VERSION_CURRENT);
// Write the Lucene version that created this segment, since 3.1
output.WriteString(si.Version);
output.WriteInt32(si.DocCount);
output.WriteByte((byte)(si.UseCompoundFile ? SegmentInfo.YES : SegmentInfo.NO));
output.WriteStringStringMap(si.Diagnostics);
output.WriteStringSet(si.GetFiles());
CodecUtil.WriteFooter(output);
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(output);
si.Dir.DeleteFile(fileName);
}
else
{
output.Dispose();
}
}
}
public override FieldInfos Read(Directory directory, string segmentName, string segmentSuffix, IOContext iocontext)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, "", PreFlexRWFieldInfosWriter.FIELD_INFOS_EXTENSION);
IndexInput input = directory.OpenInput(fileName, iocontext);
try
{
int format = input.ReadVInt();
if (format > FORMAT_MINIMUM)
{
throw new IndexFormatTooOldException(input, format, FORMAT_MINIMUM, PreFlexRWFieldInfosWriter.FORMAT_CURRENT);
}
if (format < PreFlexRWFieldInfosWriter.FORMAT_CURRENT && format != PreFlexRWFieldInfosWriter.FORMAT_PREFLEX_RW)
{
throw new IndexFormatTooNewException(input, format, FORMAT_MINIMUM, PreFlexRWFieldInfosWriter.FORMAT_CURRENT);
}
int size = input.ReadVInt(); //read in the size
FieldInfo[] infos = new FieldInfo[size];
for (int i = 0; i < size; i++)
{
string name = input.ReadString();
int fieldNumber = format == PreFlexRWFieldInfosWriter.FORMAT_PREFLEX_RW ? input.ReadInt() : i;
byte bits = input.ReadByte();
bool isIndexed = (bits & PreFlexRWFieldInfosWriter.IS_INDEXED) != 0;
bool storeTermVector = (bits & PreFlexRWFieldInfosWriter.STORE_TERMVECTOR) != 0;
bool omitNorms = (bits & PreFlexRWFieldInfosWriter.OMIT_NORMS) != 0;
bool storePayloads = (bits & PreFlexRWFieldInfosWriter.STORE_PAYLOADS) != 0;
FieldInfo.IndexOptions?indexOptions;
if (!isIndexed)
{
indexOptions = null;
}
else if ((bits & PreFlexRWFieldInfosWriter.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_ONLY;
}
else if ((bits & PreFlexRWFieldInfosWriter.OMIT_POSITIONS) != 0)
{
if (format <= PreFlexRWFieldInfosWriter.FORMAT_OMIT_POSITIONS)
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS;
}
else
{
throw new CorruptIndexException("Corrupt fieldinfos, OMIT_POSITIONS set but format=" + format + " (resource: " + input + ")");
}
}
else
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS;
}
// LUCENE-3027: past indices were able to write
// storePayloads=true when omitTFAP is also true,
// which is invalid. We correct that, here:
if (indexOptions != FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS)
{
storePayloads = false;
}
DocValuesType_e?normType = isIndexed && !omitNorms ? (DocValuesType_e?)DocValuesType_e.NUMERIC : null;
if (format == PreFlexRWFieldInfosWriter.FORMAT_PREFLEX_RW && normType != null)
{
// RW can have norms but doesn't write them
normType = input.ReadByte() != 0 ? (DocValuesType_e?)DocValuesType_e.NUMERIC : null;
}
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, null, normType, null);
}
if (input.FilePointer != input.Length())
{
throw new CorruptIndexException("did not read all bytes from file \"" + fileName + "\": read " + input.FilePointer + " vs size " + input.Length() + " (resource: " + input + ")");
}
return(new FieldInfos(infos));
}
finally
{
input.Dispose();
}
}
public static void Files(Directory dir, SegmentInfo info, ISet <string> files)
{
files.Add(IndexFileNames.SegmentFileName(info.Name, "", PreFlexRWFieldInfosWriter.FIELD_INFOS_EXTENSION));
}
