public override FieldsProducer FieldsProducer(SegmentReadState state)
{
string fileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, EXTENSION);
ChecksumIndexInput @in = state.Directory.OpenChecksumInput(fileName, IOContext.READONCE);
var fields = new SortedDictionary <string, TermsReader>();
try
{
CodecUtil.CheckHeader(@in, CODEC_NAME, VERSION_START, VERSION_CURRENT);
while (true)
{
int termCount = @in.ReadVInt();
if (termCount == 0)
{
break;
}
TermsReader termsReader = new TermsReader(state.FieldInfos, @in, termCount);
// System.out.println("load field=" + termsReader.field.name);
fields.Add(termsReader.field.Name, termsReader);
}
CodecUtil.CheckFooter(@in);
}
finally
{
@in.Dispose();
}
return(new FieldsProducerAnonymousInnerClassHelper(this, fields));
}
public override FieldInfos Read(Directory directory, string segmentName, string segmentSuffix, IOContext context)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, segmentSuffix, Lucene46FieldInfosFormat.EXTENSION);
ChecksumIndexInput input = directory.OpenChecksumInput(fileName, context);
bool success = false;
try
{
int codecVersion = CodecUtil.CheckHeader(input, Lucene46FieldInfosFormat.CODEC_NAME, Lucene46FieldInfosFormat.FORMAT_START, Lucene46FieldInfosFormat.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 = input.ReadVInt();
byte bits = input.ReadByte();
bool isIndexed = (bits & Lucene46FieldInfosFormat.IS_INDEXED) != 0;
bool storeTermVector = (bits & Lucene46FieldInfosFormat.STORE_TERMVECTOR) != 0;
bool omitNorms = (bits & Lucene46FieldInfosFormat.OMIT_NORMS) != 0;
bool storePayloads = (bits & Lucene46FieldInfosFormat.STORE_PAYLOADS) != 0;
FieldInfo.IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = default(FieldInfo.IndexOptions);
}
else if ((bits & Lucene46FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_ONLY;
}
else if ((bits & Lucene46FieldInfosFormat.OMIT_POSITIONS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS;
}
else if ((bits & Lucene46FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
}
else
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS;
}
// DV Types are packed in one byte
byte val = input.ReadByte();
FieldInfo.DocValuesType_e?docValuesType = GetDocValuesType(input, (sbyte)(val & 0x0F));
FieldInfo.DocValuesType_e?normsType = GetDocValuesType(input, (sbyte)(((int)((uint)val >> 4)) & 0x0F));
long dvGen = input.ReadLong();
IDictionary <string, string> attributes = input.ReadStringStringMap();
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, docValuesType, normsType, CollectionsHelper.UnmodifiableMap(attributes));
infos[i].DocValuesGen = dvGen;
}
if (codecVersion >= Lucene46FieldInfosFormat.FORMAT_CHECKSUM)
{
CodecUtil.CheckFooter(input);
}
else
{
CodecUtil.CheckEOF(input);
}
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.CloseWhileHandlingException(input);
}
}
}
/// <summary>
/// Go to the chunk containing the provided doc ID.
/// </summary>
internal void Next(int doc)
{
Debug.Assert(doc >= DocBase + ChunkDocs, doc + " " + DocBase + " " + ChunkDocs);
FieldsStream.Seek(OuterInstance.IndexReader.GetStartPointer(doc));
int docBase = FieldsStream.ReadVInt();
int chunkDocs = FieldsStream.ReadVInt();
if (docBase < this.DocBase + this.ChunkDocs || docBase + chunkDocs > OuterInstance.NumDocs)
{
throw new CorruptIndexException("Corrupted: current docBase=" + this.DocBase + ", current numDocs=" + this.ChunkDocs + ", new docBase=" + docBase + ", new numDocs=" + chunkDocs + " (resource=" + FieldsStream + ")");
}
this.DocBase = docBase;
this.ChunkDocs = chunkDocs;
if (chunkDocs > NumStoredFields.Length)
{
int newLength = ArrayUtil.Oversize(chunkDocs, 4);
NumStoredFields = new int[newLength];
Lengths = new int[newLength];
}
if (chunkDocs == 1)
{
NumStoredFields[0] = FieldsStream.ReadVInt();
Lengths[0] = FieldsStream.ReadVInt();
}
else
{
int bitsPerStoredFields = FieldsStream.ReadVInt();
if (bitsPerStoredFields == 0)
{
CollectionsHelper.Fill(NumStoredFields, 0, chunkDocs, FieldsStream.ReadVInt());
}
else if (bitsPerStoredFields > 31)
{
throw new CorruptIndexException("bitsPerStoredFields=" + bitsPerStoredFields + " (resource=" + FieldsStream + ")");
}
else
{
PackedInts.ReaderIterator it = PackedInts.GetReaderIteratorNoHeader(FieldsStream, PackedInts.Format.PACKED, OuterInstance.PackedIntsVersion, chunkDocs, bitsPerStoredFields, 1);
for (int i = 0; i < chunkDocs; ++i)
{
NumStoredFields[i] = (int)it.Next();
}
}
int bitsPerLength = FieldsStream.ReadVInt();
if (bitsPerLength == 0)
{
CollectionsHelper.Fill(Lengths, 0, chunkDocs, FieldsStream.ReadVInt());
}
else if (bitsPerLength > 31)
{
throw new CorruptIndexException("bitsPerLength=" + bitsPerLength);
}
else
{
PackedInts.ReaderIterator it = PackedInts.GetReaderIteratorNoHeader(FieldsStream, PackedInts.Format.PACKED, OuterInstance.PackedIntsVersion, chunkDocs, bitsPerLength, 1);
for (int i = 0; i < chunkDocs; ++i)
{
Lengths[i] = (int)it.Next();
}
}
}
}
