private void WriteHeader(IndexOutput output)
{
CodecUtil.WriteHeader(output, CODEC_NAME, VERSION_CURRENT);
}
public FixedGapTermsIndexReader(Directory dir, FieldInfos fieldInfos, String segment, int indexDivisor,
IComparer <BytesRef> termComp, String segmentSuffix, IOContext context)
{
_termComp = termComp;
Debug.Assert(indexDivisor == -1 || indexDivisor > 0);
_input =
dir.OpenInput(
IndexFileNames.SegmentFileName(segment, segmentSuffix,
FixedGapTermsIndexWriter.TERMS_INDEX_EXTENSION),
context);
var success = false;
try
{
_version = ReadHeader(_input);
if (_version >= FixedGapTermsIndexWriter.VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(_input);
}
indexInterval = _input.ReadInt();
if (indexInterval < 1)
{
throw new CorruptIndexException(String.Format("Invalid indexInterval: {0}, Resource: {1}",
indexInterval, _input));
}
_indexDivisor = indexDivisor;
if (indexDivisor < 0)
{
_totalIndexInterval = indexInterval;
}
else
{
// In case terms index gets loaded, later, on demand
_totalIndexInterval = indexInterval * indexDivisor;
}
Debug.Assert(_totalIndexInterval > 0);
SeekDir(_input, _dirOffset);
// Read directory
int numFields = _input.ReadVInt();
if (numFields < 0)
{
throw new CorruptIndexException(String.Format("Invalid numFields: {0}, Resource: {1}", numFields,
_input));
}
for (int i = 0; i < numFields; i++)
{
int field = _input.ReadVInt();
int numIndexTerms = _input.ReadVInt();
if (numIndexTerms < 0)
{
throw new CorruptIndexException(String.Format("Invalid numIndexTerms: {0}, Resource: {1}",
numIndexTerms,
_input));
}
long termsStart = _input.ReadVLong();
long indexStart = _input.ReadVLong();
long packedIndexStart = _input.ReadVLong();
long packedOffsetsStart = _input.ReadVLong();
if (packedIndexStart < indexStart)
{
throw new CorruptIndexException(
String.Format(
"Invalid packedIndexStart: {0}, IndexStart: {1}, NumIndexTerms: {2}, Resource: {3}",
packedIndexStart,
indexStart, numIndexTerms, _input));
}
FieldInfo fieldInfo = fieldInfos.FieldInfo(field);
try
{
_fields.Add(fieldInfo,
new FieldIndexData(numIndexTerms, indexStart, termsStart, packedIndexStart,
packedOffsetsStart, this));
}
catch (ArgumentException)
{
throw new CorruptIndexException(String.Format("Duplicate field: {0}, Resource {1}",
fieldInfo.Name,
_input));
}
}
success = true;
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(_input);
}
if (indexDivisor > 0)
{
_input.Dispose();
_input = null;
if (success)
{
_indexLoaded = true;
}
_termBytesReader = _termBytes.Freeze(true);
}
}
}
public VariableGapTermsIndexReader(Directory dir, FieldInfos fieldInfos, String segment, int indexDivisor,
String segmentSuffix, IOContext context)
{
_input =
dir.OpenInput(
IndexFileNames.SegmentFileName(segment, segmentSuffix,
VariableGapTermsIndexWriter.TERMS_INDEX_EXTENSION), new IOContext(context, true));
var success = false;
Debug.Assert(indexDivisor == -1 || indexDivisor > 0);
try
{
_version = ReadHeader(_input);
_indexDivisor = indexDivisor;
if (_version >= VariableGapTermsIndexWriter.VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(_input);
}
SeekDir(_input, _dirOffset);
// Read directory
var numFields = _input.ReadVInt();
if (numFields < 0)
{
throw new CorruptIndexException("invalid numFields: " + numFields + " (resource=" + _input + ")");
}
for (var i = 0; i < numFields; i++)
{
var field = _input.ReadVInt();
var indexStart = _input.ReadVLong();
var fieldInfo = fieldInfos.FieldInfo(field);
try
{
_fields.Add(fieldInfo, new FieldIndexData(indexStart, this));
}
catch (ArgumentException)
{
throw new CorruptIndexException(String.Format("Duplicate Field: {0}, Resource: {1}",
fieldInfo.Name, _input));
}
}
success = true;
}
finally
{
if (indexDivisor > 0)
{
_input.Dispose();
_input = null;
if (success)
{
_indexLoaded = true;
}
}
}
}
public override int Merge(MergeState mergeState)
{
int docCount = 0;
int idx = 0;
foreach (AtomicReader reader in mergeState.Readers)
{
SegmentReader matchingSegmentReader = mergeState.MatchingSegmentReaders[idx++];
CompressingTermVectorsReader matchingVectorsReader = null;
if (matchingSegmentReader != null)
{
TermVectorsReader vectorsReader = matchingSegmentReader.TermVectorsReader;
// we can only bulk-copy if the matching reader is also a CompressingTermVectorsReader
if (vectorsReader != null && vectorsReader is CompressingTermVectorsReader)
{
matchingVectorsReader = (CompressingTermVectorsReader)vectorsReader;
}
}
int maxDoc = reader.MaxDoc;
IBits liveDocs = reader.LiveDocs;
if (matchingVectorsReader == null || matchingVectorsReader.Version != VERSION_CURRENT || matchingVectorsReader.CompressionMode != compressionMode || matchingVectorsReader.ChunkSize != chunkSize || matchingVectorsReader.PackedInt32sVersion != PackedInt32s.VERSION_CURRENT)
{
// naive merge...
for (int i = NextLiveDoc(0, liveDocs, maxDoc); i < maxDoc; i = NextLiveDoc(i + 1, liveDocs, maxDoc))
{
Fields vectors = reader.GetTermVectors(i);
AddAllDocVectors(vectors, mergeState);
++docCount;
mergeState.CheckAbort.Work(300);
}
}
else
{
CompressingStoredFieldsIndexReader index = matchingVectorsReader.Index;
IndexInput vectorsStreamOrig = matchingVectorsReader.VectorsStream;
vectorsStreamOrig.Seek(0);
ChecksumIndexInput vectorsStream = new BufferedChecksumIndexInput((IndexInput)vectorsStreamOrig.Clone());
for (int i = NextLiveDoc(0, liveDocs, maxDoc); i < maxDoc;)
{
// We make sure to move the checksum input in any case, otherwise the final
// integrity check might need to read the whole file a second time
long startPointer = index.GetStartPointer(i);
if (startPointer > vectorsStream.GetFilePointer())
{
vectorsStream.Seek(startPointer);
}
if ((pendingDocs.Count == 0) && (i == 0 || index.GetStartPointer(i - 1) < startPointer)) // start of a chunk
{
int docBase = vectorsStream.ReadVInt32();
int chunkDocs = vectorsStream.ReadVInt32();
Debug.Assert(docBase + chunkDocs <= matchingSegmentReader.MaxDoc);
if (docBase + chunkDocs < matchingSegmentReader.MaxDoc && NextDeletedDoc(docBase, liveDocs, docBase + chunkDocs) == docBase + chunkDocs)
{
long chunkEnd = index.GetStartPointer(docBase + chunkDocs);
long chunkLength = chunkEnd - vectorsStream.GetFilePointer();
indexWriter.WriteIndex(chunkDocs, this.vectorsStream.GetFilePointer());
this.vectorsStream.WriteVInt32(docCount);
this.vectorsStream.WriteVInt32(chunkDocs);
this.vectorsStream.CopyBytes(vectorsStream, chunkLength);
docCount += chunkDocs;
this.numDocs += chunkDocs;
mergeState.CheckAbort.Work(300 * chunkDocs);
i = NextLiveDoc(docBase + chunkDocs, liveDocs, maxDoc);
}
else
{
for (; i < docBase + chunkDocs; i = NextLiveDoc(i + 1, liveDocs, maxDoc))
{
Fields vectors = reader.GetTermVectors(i);
AddAllDocVectors(vectors, mergeState);
++docCount;
mergeState.CheckAbort.Work(300);
}
}
}
else
{
Fields vectors = reader.GetTermVectors(i);
AddAllDocVectors(vectors, mergeState);
++docCount;
mergeState.CheckAbort.Work(300);
i = NextLiveDoc(i + 1, liveDocs, maxDoc);
}
}
vectorsStream.Seek(vectorsStream.Length - CodecUtil.FooterLength());
CodecUtil.CheckFooter(vectorsStream);
}
}
Finish(mergeState.FieldInfos, docCount);
return(docCount);
}
private readonly int version; // LUCENENET: marked readonly
//static final boolean TEST = false;
public FSTOrdTermsReader(SegmentReadState state, PostingsReaderBase postingsReader)
{
string termsIndexFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, FSTOrdTermsWriter.TERMS_INDEX_EXTENSION);
string termsBlockFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, FSTOrdTermsWriter.TERMS_BLOCK_EXTENSION);
this.postingsReader = postingsReader;
ChecksumIndexInput indexIn = null;
IndexInput blockIn = null;
bool success = false;
try
{
indexIn = state.Directory.OpenChecksumInput(termsIndexFileName, state.Context);
blockIn = state.Directory.OpenInput(termsBlockFileName, state.Context);
version = ReadHeader(indexIn);
ReadHeader(blockIn);
if (version >= FSTOrdTermsWriter.TERMS_VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(blockIn);
}
this.postingsReader.Init(blockIn);
SeekDir(blockIn);
FieldInfos fieldInfos = state.FieldInfos;
int numFields = blockIn.ReadVInt32();
for (int i = 0; i < numFields; i++)
{
FieldInfo fieldInfo = fieldInfos.FieldInfo(blockIn.ReadVInt32());
bool hasFreq = fieldInfo.IndexOptions != IndexOptions.DOCS_ONLY;
long numTerms = blockIn.ReadVInt64();
long sumTotalTermFreq = hasFreq ? blockIn.ReadVInt64() : -1;
long sumDocFreq = blockIn.ReadVInt64();
int docCount = blockIn.ReadVInt32();
int longsSize = blockIn.ReadVInt32();
var index = new FST <Int64>(indexIn, PositiveInt32Outputs.Singleton);
var current = new TermsReader(this, fieldInfo, blockIn, numTerms, sumTotalTermFreq, sumDocFreq, docCount, longsSize, index);
// LUCENENET NOTE: This simulates a put operation in Java,
// getting the prior value first before setting it.
fields.TryGetValue(fieldInfo.Name, out TermsReader previous);
fields[fieldInfo.Name] = current;
CheckFieldSummary(state.SegmentInfo, indexIn, blockIn, current, previous);
}
if (version >= FSTOrdTermsWriter.TERMS_VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(indexIn);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(indexIn);
#pragma warning restore 612, 618
}
success = true;
}
finally
{
if (success)
{
IOUtils.Dispose(indexIn, blockIn);
}
else
{
IOUtils.DisposeWhileHandlingException(indexIn, blockIn);
}
}
}
/// <summary>
/// Sole constructor. </summary>
public CompressingStoredFieldsReader(Directory d, SegmentInfo si, string segmentSuffix, FieldInfos fn, IOContext context, string formatName, CompressionMode compressionMode)
{
this.compressionMode = compressionMode;
string segment = si.Name;
bool success = false;
fieldInfos = fn;
numDocs = si.DocCount;
ChecksumIndexInput indexStream = null;
try
{
string indexStreamFN = IndexFileNames.SegmentFileName(segment, segmentSuffix, Lucene40StoredFieldsWriter.FIELDS_INDEX_EXTENSION);
string fieldsStreamFN = IndexFileNames.SegmentFileName(segment, segmentSuffix, Lucene40StoredFieldsWriter.FIELDS_EXTENSION);
// Load the index into memory
indexStream = d.OpenChecksumInput(indexStreamFN, context);
string codecNameIdx = formatName + CompressingStoredFieldsWriter.CODEC_SFX_IDX;
version = CodecUtil.CheckHeader(indexStream, codecNameIdx, CompressingStoredFieldsWriter.VERSION_START, CompressingStoredFieldsWriter.VERSION_CURRENT);
Debug.Assert(CodecUtil.HeaderLength(codecNameIdx) == indexStream.GetFilePointer());
indexReader = new CompressingStoredFieldsIndexReader(indexStream, si);
long maxPointer = -1;
if (version >= CompressingStoredFieldsWriter.VERSION_CHECKSUM)
{
maxPointer = indexStream.ReadVInt64();
CodecUtil.CheckFooter(indexStream);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(indexStream);
#pragma warning restore 612, 618
}
indexStream.Dispose();
indexStream = null;
// Open the data file and read metadata
fieldsStream = d.OpenInput(fieldsStreamFN, context);
if (version >= CompressingStoredFieldsWriter.VERSION_CHECKSUM)
{
if (maxPointer + CodecUtil.FooterLength() != fieldsStream.Length)
{
throw new CorruptIndexException("Invalid fieldsStream maxPointer (file truncated?): maxPointer=" + maxPointer + ", length=" + fieldsStream.Length);
}
}
else
{
maxPointer = fieldsStream.Length;
}
this.maxPointer = maxPointer;
string codecNameDat = formatName + CompressingStoredFieldsWriter.CODEC_SFX_DAT;
int fieldsVersion = CodecUtil.CheckHeader(fieldsStream, codecNameDat, CompressingStoredFieldsWriter.VERSION_START, CompressingStoredFieldsWriter.VERSION_CURRENT);
if (version != fieldsVersion)
{
throw new CorruptIndexException("Version mismatch between stored fields index and data: " + version + " != " + fieldsVersion);
}
Debug.Assert(CodecUtil.HeaderLength(codecNameDat) == fieldsStream.GetFilePointer());
if (version >= CompressingStoredFieldsWriter.VERSION_BIG_CHUNKS)
{
chunkSize = fieldsStream.ReadVInt32();
}
else
{
chunkSize = -1;
}
packedIntsVersion = fieldsStream.ReadVInt32();
decompressor = compressionMode.NewDecompressor();
this.bytes = new BytesRef();
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(this, indexStream);
}
}
}
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(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.WriteLong(fi.DocValuesGen);
output.WriteStringStringMap(fi.Attributes());
}
CodecUtil.WriteFooter(output);
success = true;
}
finally
{
if (success)
{
output.Dispose();
}
else
{
IOUtils.CloseWhileHandlingException(output);
}
}
}
public override void Init(IndexOutput termsOut)
{
CodecUtil.WriteHeader(termsOut, TERMS_CODEC, VERSION_CURRENT);
termsOut.WriteVInt32(Lucene41PostingsFormat.BLOCK_SIZE);
}
private void WriteHeader(IndexOutput @out)
{
CodecUtil.WriteHeader(@out, TERMS_CODEC_NAME, TERMS_VERSION_CURRENT);
}
protected BinaryDictionary()
{
int[] targetMapOffsets = null, targetMap = null;
string[] posDict = null;
string[] inflFormDict = null;
string[] inflTypeDict = null;
ByteBuffer buffer = null;
using (Stream mapIS = GetResource(TARGETMAP_FILENAME_SUFFIX))
{
DataInput @in = new InputStreamDataInput(mapIS);
CodecUtil.CheckHeader(@in, TARGETMAP_HEADER, VERSION, VERSION);
targetMap = new int[@in.ReadVInt32()];
targetMapOffsets = new int[@in.ReadVInt32()];
int accum = 0, sourceId = 0;
for (int ofs = 0; ofs < targetMap.Length; ofs++)
{
int val = @in.ReadVInt32();
if ((val & 0x01) != 0)
{
targetMapOffsets[sourceId] = ofs;
sourceId++;
}
accum += (int)((uint)val) >> 1;
targetMap[ofs] = accum;
}
if (sourceId + 1 != targetMapOffsets.Length)
{
throw new IOException("targetMap file format broken");
}
targetMapOffsets[sourceId] = targetMap.Length;
}
using (Stream posIS = GetResource(POSDICT_FILENAME_SUFFIX))
{
DataInput @in = new InputStreamDataInput(posIS);
CodecUtil.CheckHeader(@in, POSDICT_HEADER, VERSION, VERSION);
int posSize = @in.ReadVInt32();
posDict = new string[posSize];
inflTypeDict = new string[posSize];
inflFormDict = new string[posSize];
for (int j = 0; j < posSize; j++)
{
posDict[j] = @in.ReadString();
inflTypeDict[j] = @in.ReadString();
inflFormDict[j] = @in.ReadString();
// this is how we encode null inflections
if (inflTypeDict[j].Length == 0)
{
inflTypeDict[j] = null;
}
if (inflFormDict[j].Length == 0)
{
inflFormDict[j] = null;
}
}
}
ByteBuffer tmpBuffer;
using (Stream dictIS = GetResource(DICT_FILENAME_SUFFIX))
{
// no buffering here, as we load in one large buffer
DataInput @in = new InputStreamDataInput(dictIS);
CodecUtil.CheckHeader(@in, DICT_HEADER, VERSION, VERSION);
int size = @in.ReadVInt32();
tmpBuffer = ByteBuffer.Allocate(size); // AllocateDirect..?
int read = dictIS.Read(tmpBuffer.Array, 0, size);
if (read != size)
{
throw new EndOfStreamException("Cannot read whole dictionary");
}
}
buffer = tmpBuffer.AsReadOnlyBuffer();
this.targetMap = targetMap;
this.targetMapOffsets = targetMapOffsets;
this.posDict = posDict;
this.inflTypeDict = inflTypeDict;
this.inflFormDict = inflFormDict;
this.buffer = buffer;
}
/// <summary>
/// Reads the snapshots information from the given <see cref="Directory"/>. This
/// method can be used if the snapshots information is needed, however you
/// cannot instantiate the deletion policy (because e.g., some other process
/// keeps a lock on the snapshots directory).
/// </summary>
private void LoadPriorSnapshots()
{
UninterruptableMonitor.Enter(this);
try
{
long genLoaded = -1;
Exception ioe = null; // LUCENENET: No need to cast to IOExcpetion
IList <string> snapshotFiles = new JCG.List <string>();
foreach (string file in dir.ListAll())
{
if (file.StartsWith(SNAPSHOTS_PREFIX, StringComparison.Ordinal))
{
// LUCENENET: Optimized to not allocate a substring during the parse
long gen = Long.Parse(file, SNAPSHOTS_PREFIX.Length, file.Length - SNAPSHOTS_PREFIX.Length, radix: 10);
if (genLoaded == -1 || gen > genLoaded)
{
snapshotFiles.Add(file);
IDictionary <long, int> m = new Dictionary <long, int>();
IndexInput @in = dir.OpenInput(file, IOContext.DEFAULT);
try
{
CodecUtil.CheckHeader(@in, CODEC_NAME, VERSION_START, VERSION_START);
int count = @in.ReadVInt32();
for (int i = 0; i < count; i++)
{
long commitGen = @in.ReadVInt64();
int refCount = @in.ReadVInt32();
m[commitGen] = refCount;
}
}
catch (Exception ioe2) when(ioe2.IsIOException())
{
// Save first exception & throw in the end
if (ioe is null)
{
ioe = ioe2;
}
}
finally
{
@in.Dispose();
}
genLoaded = gen;
m_refCounts.Clear();
m_refCounts.PutAll(m);
}
}
}
if (genLoaded == -1)
{
// Nothing was loaded...
if (ioe != null)
{
// ... not for lack of trying:
ExceptionDispatchInfo.Capture(ioe).Throw(); // LUCENENET: Rethrow to preserve stack details from the original throw
}
}
else
{
if (snapshotFiles.Count > 1)
{
// Remove any broken / old snapshot files:
string curFileName = SNAPSHOTS_PREFIX + genLoaded;
foreach (string file in snapshotFiles)
{
if (!curFileName.Equals(file, StringComparison.Ordinal))
{
dir.DeleteFile(file);
}
}
}
nextWriteGen = 1 + genLoaded;
}
}
finally
{
UninterruptableMonitor.Exit(this);
}
}
internal void Persist()
{
UninterruptableMonitor.Enter(this);
try
{
string fileName = SNAPSHOTS_PREFIX + nextWriteGen;
IndexOutput @out = dir.CreateOutput(fileName, IOContext.DEFAULT);
bool success = false;
try
{
CodecUtil.WriteHeader(@out, CODEC_NAME, VERSION_CURRENT);
@out.WriteVInt32(m_refCounts.Count);
foreach (KeyValuePair <long, int> ent in m_refCounts)
{
@out.WriteVInt64(ent.Key);
@out.WriteVInt32(ent.Value);
}
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(@out);
try
{
dir.DeleteFile(fileName);
}
catch (Exception e) when(e.IsException())
{
// Suppress so we keep throwing original exception
}
}
else
{
IOUtils.Dispose(@out);
}
}
dir.Sync(/*Collections.singletonList(*/ new[] { fileName } /*)*/);
if (nextWriteGen > 0)
{
string lastSaveFile = SNAPSHOTS_PREFIX + (nextWriteGen - 1);
try
{
dir.DeleteFile(lastSaveFile);
}
catch (Exception ioe) when(ioe.IsIOException())
{
// OK: likely it didn't exist
}
}
nextWriteGen++;
}
finally
{
UninterruptableMonitor.Exit(this);
}
}
protected override int ReadIndexHeader(IndexInput input)
{
return(CodecUtil.CheckHeader(input, APPENDING_TERMS_INDEX_CODEC_NAME,
BlockTreeTermsWriter.VERSION_START,
BlockTreeTermsWriter.VERSION_CURRENT));
}
/// <summary>
/// Reads the snapshots information from the given <see cref="Directory"/>. This
/// method can be used if the snapshots information is needed, however you
/// cannot instantiate the deletion policy (because e.g., some other process
/// keeps a lock on the snapshots directory).
/// </summary>
private void LoadPriorSnapshots()
{
lock (this)
{
long genLoaded = -1;
IOException ioe = null;
IList <string> snapshotFiles = new List <string>();
foreach (string file in dir.ListAll())
{
if (file.StartsWith(SNAPSHOTS_PREFIX, StringComparison.Ordinal))
{
long gen = Convert.ToInt64(file.Substring(SNAPSHOTS_PREFIX.Length), CultureInfo.InvariantCulture);
if (genLoaded == -1 || gen > genLoaded)
{
snapshotFiles.Add(file);
IDictionary <long, int> m = new Dictionary <long, int>();
IndexInput @in = dir.OpenInput(file, IOContext.DEFAULT);
try
{
CodecUtil.CheckHeader(@in, CODEC_NAME, VERSION_START, VERSION_START);
int count = @in.ReadVInt32();
for (int i = 0; i < count; i++)
{
long commitGen = @in.ReadVInt64();
int refCount = @in.ReadVInt32();
m[commitGen] = refCount;
}
}
catch (IOException ioe2)
{
// Save first exception & throw in the end
if (ioe == null)
{
ioe = ioe2;
}
}
finally
{
@in.Dispose();
}
genLoaded = gen;
m_refCounts.Clear();
m_refCounts.PutAll(m);
}
}
}
if (genLoaded == -1)
{
// Nothing was loaded...
if (ioe != null)
{
// ... not for lack of trying:
throw ioe;
}
}
else
{
if (snapshotFiles.Count > 1)
{
// Remove any broken / old snapshot files:
string curFileName = SNAPSHOTS_PREFIX + genLoaded;
foreach (string file in snapshotFiles)
{
if (!curFileName.Equals(file, StringComparison.Ordinal))
{
dir.DeleteFile(file);
}
}
}
nextWriteGen = 1 + genLoaded;
}
}
}
public override void Write(Directory directory, string segmentName, string segmentSuffix, FieldInfos infos, IOContext context)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, "", Lucene40FieldInfosFormat.FIELD_INFOS_EXTENSION);
IndexOutput output = directory.CreateOutput(fileName, context);
bool success = false;
try
{
CodecUtil.WriteHeader(output, Lucene40FieldInfosFormat.CODEC_NAME, Lucene40FieldInfosFormat.FORMAT_CURRENT);
output.WriteVInt32(infos.Count);
foreach (FieldInfo fi in infos)
{
IndexOptions indexOptions = fi.IndexOptions;
sbyte bits = 0x0;
if (fi.HasVectors)
{
bits |= Lucene40FieldInfosFormat.STORE_TERMVECTOR;
}
if (fi.OmitsNorms)
{
bits |= Lucene40FieldInfosFormat.OMIT_NORMS;
}
if (fi.HasPayloads)
{
bits |= Lucene40FieldInfosFormat.STORE_PAYLOADS;
}
if (fi.IsIndexed)
{
bits |= Lucene40FieldInfosFormat.IS_INDEXED;
Debug.Assert(indexOptions.CompareTo(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS) >= 0 || !fi.HasPayloads);
if (indexOptions == IndexOptions.DOCS_ONLY)
{
bits |= Lucene40FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS;
}
else if (indexOptions == IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS)
{
bits |= Lucene40FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS;
}
else if (indexOptions == IndexOptions.DOCS_AND_FREQS)
{
bits |= Lucene40FieldInfosFormat.OMIT_POSITIONS;
}
}
output.WriteString(fi.Name);
output.WriteVInt32(fi.Number);
output.WriteByte((byte)bits);
// pack the DV types in one byte
byte dv = DocValuesByte(fi.DocValuesType, fi.GetAttribute(Lucene40FieldInfosReader.LEGACY_DV_TYPE_KEY));
byte nrm = DocValuesByte(fi.NormType, fi.GetAttribute(Lucene40FieldInfosReader.LEGACY_NORM_TYPE_KEY));
Debug.Assert((dv & (~0xF)) == 0 && (nrm & (~0x0F)) == 0);
var val = (byte)(0xff & ((nrm << 4) | (byte)dv));
output.WriteByte(val);
output.WriteStringStringMap(fi.Attributes);
}
success = true;
}
finally
{
if (success)
{
output.Dispose();
}
else
{
IOUtils.DisposeWhileHandlingException(output);
}
}
}
/// <summary>
/// Creates a postings writer with the specified PackedInts overhead ratio </summary>
// TODO: does this ctor even make sense?
public Lucene41PostingsWriter(SegmentWriteState state, float acceptableOverheadRatio)
: base()
{
docOut = state.Directory.CreateOutput(IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, Lucene41PostingsFormat.DOC_EXTENSION), state.Context);
IndexOutput posOut = null;
IndexOutput payOut = null;
bool success = false;
try
{
CodecUtil.WriteHeader(docOut, DOC_CODEC, VERSION_CURRENT);
forUtil = new ForUtil(acceptableOverheadRatio, docOut);
if (state.FieldInfos.HasProx)
{
posDeltaBuffer = new int[ForUtil.MAX_DATA_SIZE];
posOut = state.Directory.CreateOutput(IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, Lucene41PostingsFormat.POS_EXTENSION), state.Context);
CodecUtil.WriteHeader(posOut, POS_CODEC, VERSION_CURRENT);
if (state.FieldInfos.HasPayloads)
{
payloadBytes = new byte[128];
payloadLengthBuffer = new int[ForUtil.MAX_DATA_SIZE];
}
else
{
payloadBytes = null;
payloadLengthBuffer = null;
}
if (state.FieldInfos.HasOffsets)
{
offsetStartDeltaBuffer = new int[ForUtil.MAX_DATA_SIZE];
offsetLengthBuffer = new int[ForUtil.MAX_DATA_SIZE];
}
else
{
offsetStartDeltaBuffer = null;
offsetLengthBuffer = null;
}
if (state.FieldInfos.HasPayloads || state.FieldInfos.HasOffsets)
{
payOut = state.Directory.CreateOutput(IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, Lucene41PostingsFormat.PAY_EXTENSION), state.Context);
CodecUtil.WriteHeader(payOut, PAY_CODEC, VERSION_CURRENT);
}
}
else
{
posDeltaBuffer = null;
payloadLengthBuffer = null;
offsetStartDeltaBuffer = null;
offsetLengthBuffer = null;
payloadBytes = null;
}
this.payOut = payOut;
this.posOut = posOut;
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(docOut, posOut, payOut);
}
}
docDeltaBuffer = new int[ForUtil.MAX_DATA_SIZE];
freqBuffer = new int[ForUtil.MAX_DATA_SIZE];
// TODO: should we try skipping every 2/4 blocks...?
skipWriter = new Lucene41SkipWriter(maxSkipLevels, Lucene41PostingsFormat.BLOCK_SIZE, state.SegmentInfo.DocCount, docOut, posOut, payOut);
encoded = new byte[ForUtil.MAX_ENCODED_SIZE];
}
public override NumericDocValues GetNumeric(FieldInfo field)
{
UninterruptableMonitor.Enter(this);
try
{
if (!numericInstances.TryGetValue(field.Number, out NumericDocValues instance))
{
string fileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name + "_" + Convert.ToString(field.Number, CultureInfo.InvariantCulture), segmentSuffix, "dat");
IndexInput input = dir.OpenInput(fileName, state.Context);
bool success = false;
try
{
var type = field.GetAttribute(legacyKey).ToLegacyDocValuesType();
//switch (Enum.Parse(typeof(LegacyDocValuesType), field.GetAttribute(LegacyKey)))
//{
if (type == LegacyDocValuesType.VAR_INTS)
{
instance = LoadVarInt32sField(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FIXED_INTS_8)
{
instance = LoadByteField(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FIXED_INTS_16)
{
instance = LoadInt16Field(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FIXED_INTS_32)
{
instance = LoadInt32Field(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FIXED_INTS_64)
{
instance = LoadInt64Field(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FLOAT_32)
{
instance = LoadSingleField(/* field, // LUCENENET: Never read */ input);
}
else if (type == LegacyDocValuesType.FLOAT_64)
{
instance = LoadDoubleField(/* field, // LUCENENET: Never read */ input);
}
else
{
throw AssertionError.Create();
}
CodecUtil.CheckEOF(input);
success = true;
}
finally
{
if (success)
{
IOUtils.Dispose(input);
}
else
{
IOUtils.DisposeWhileHandlingException(input);
}
}
numericInstances[field.Number] = instance;
}
return(instance);
}
finally
{
UninterruptableMonitor.Exit(this);
}
}
//static final boolean TEST = false;
public FSTOrdTermsReader(SegmentReadState state, PostingsReaderBase postingsReader)
{
string termsIndexFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, FSTOrdTermsWriter.TERMS_INDEX_EXTENSION);
string termsBlockFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, FSTOrdTermsWriter.TERMS_BLOCK_EXTENSION);
this.postingsReader = postingsReader;
ChecksumIndexInput indexIn = null;
IndexInput blockIn = null;
bool success = false;
try
{
indexIn = state.Directory.OpenChecksumInput(termsIndexFileName, state.Context);
blockIn = state.Directory.OpenInput(termsBlockFileName, state.Context);
version = ReadHeader(indexIn);
ReadHeader(blockIn);
if (version >= FSTOrdTermsWriter.TERMS_VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(blockIn);
}
this.postingsReader.Init(blockIn);
SeekDir(blockIn);
FieldInfos fieldInfos = state.FieldInfos;
int numFields = blockIn.ReadVInt();
for (int i = 0; i < numFields; i++)
{
FieldInfo fieldInfo = fieldInfos.FieldInfo(blockIn.ReadVInt());
bool hasFreq = fieldInfo.FieldIndexOptions != FieldInfo.IndexOptions.DOCS_ONLY;
long numTerms = blockIn.ReadVLong();
long sumTotalTermFreq = hasFreq ? blockIn.ReadVLong() : -1;
long sumDocFreq = blockIn.ReadVLong();
int docCount = blockIn.ReadVInt();
int longsSize = blockIn.ReadVInt();
var index = new FST <long?>(indexIn, PositiveIntOutputs.Singleton);
var current = new TermsReader(this, fieldInfo, blockIn, numTerms, sumTotalTermFreq, sumDocFreq, docCount, longsSize, index);
var previous = fields[fieldInfo.Name] = current;
CheckFieldSummary(state.SegmentInfo, indexIn, blockIn, current, previous);
}
if (version >= FSTOrdTermsWriter.TERMS_VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(indexIn);
}
else
{
CodecUtil.CheckEOF(indexIn);
}
success = true;
}
finally
{
if (success)
{
IOUtils.Close(indexIn, blockIn);
}
else
{
IOUtils.CloseWhileHandlingException(indexIn, blockIn);
}
}
}
private void AddVarSortedBytesField(FieldInfo field, IndexOutput data, IndexOutput index, IEnumerable <BytesRef> values, IEnumerable <long?> docToOrd)
{
field.PutAttribute(legacyKey, LegacyDocValuesType.BYTES_VAR_SORTED.ToString());
CodecUtil.WriteHeader(data, Lucene40DocValuesFormat.BYTES_VAR_SORTED_CODEC_NAME_DAT, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_CURRENT);
CodecUtil.WriteHeader(index, Lucene40DocValuesFormat.BYTES_VAR_SORTED_CODEC_NAME_IDX, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_CURRENT);
/* values */
long startPos = data.Position; // LUCENENET specific: Renamed from getFilePointer() to match FileStream
int valueCount = 0;
foreach (BytesRef v in values)
{
data.WriteBytes(v.Bytes, v.Offset, v.Length);
valueCount++;
}
/* addresses */
long maxAddress = data.Position - startPos; // LUCENENET specific: Renamed from getFilePointer() to match FileStream
index.WriteInt64(maxAddress);
if (Debugging.AssertsEnabled)
{
Debugging.Assert(valueCount != int.MaxValue); // unsupported by the 4.0 impl
}
PackedInt32s.Writer w = PackedInt32s.GetWriter(index, valueCount + 1, PackedInt32s.BitsRequired(maxAddress), PackedInt32s.DEFAULT);
long currentPosition = 0;
foreach (BytesRef v in values)
{
w.Add(currentPosition);
currentPosition += v.Length;
}
// write sentinel
if (Debugging.AssertsEnabled)
{
Debugging.Assert(currentPosition == maxAddress);
}
w.Add(currentPosition);
w.Finish();
/* ordinals */
int maxDoc = state.SegmentInfo.DocCount;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(valueCount > 0);
}
PackedInt32s.Writer ords = PackedInt32s.GetWriter(index, maxDoc, PackedInt32s.BitsRequired(valueCount - 1), PackedInt32s.DEFAULT);
foreach (long n in docToOrd)
{
ords.Add((long)n);
}
ords.Finish();
}
/// <summary>
/// Sole constructor. </summary>
public CompressingTermVectorsReader(Directory d, SegmentInfo si, string segmentSuffix, FieldInfos fn, IOContext context, string formatName, CompressionMode compressionMode)
{
this.compressionMode = compressionMode;
string segment = si.Name;
bool success = false;
fieldInfos = fn;
numDocs = si.DocCount;
ChecksumIndexInput indexStream = null;
try
{
// Load the index into memory
string indexStreamFN = IndexFileNames.SegmentFileName(segment, segmentSuffix, CompressingTermVectorsWriter.VECTORS_INDEX_EXTENSION);
indexStream = d.OpenChecksumInput(indexStreamFN, context);
string codecNameIdx = formatName + CompressingTermVectorsWriter.CODEC_SFX_IDX;
version = CodecUtil.CheckHeader(indexStream, codecNameIdx, CompressingTermVectorsWriter.VERSION_START, CompressingTermVectorsWriter.VERSION_CURRENT);
if (Debugging.AssertsEnabled)
{
Debugging.Assert(CodecUtil.HeaderLength(codecNameIdx) == indexStream.Position); // LUCENENET specific: Renamed from getFilePointer() to match FileStream
}
indexReader = new CompressingStoredFieldsIndexReader(indexStream, si);
if (version >= CompressingTermVectorsWriter.VERSION_CHECKSUM)
{
indexStream.ReadVInt64(); // the end of the data file
CodecUtil.CheckFooter(indexStream);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(indexStream);
#pragma warning restore 612, 618
}
indexStream.Dispose();
indexStream = null;
// Open the data file and read metadata
string vectorsStreamFN = IndexFileNames.SegmentFileName(segment, segmentSuffix, CompressingTermVectorsWriter.VECTORS_EXTENSION);
vectorsStream = d.OpenInput(vectorsStreamFN, context);
string codecNameDat = formatName + CompressingTermVectorsWriter.CODEC_SFX_DAT;
int version2 = CodecUtil.CheckHeader(vectorsStream, codecNameDat, CompressingTermVectorsWriter.VERSION_START, CompressingTermVectorsWriter.VERSION_CURRENT);
if (version != version2)
{
throw RuntimeException.Create("Version mismatch between stored fields index and data: " + version + " != " + version2);
}
if (Debugging.AssertsEnabled)
{
Debugging.Assert(CodecUtil.HeaderLength(codecNameDat) == vectorsStream.Position); // LUCENENET specific: Renamed from getFilePointer() to match FileStream
}
packedIntsVersion = vectorsStream.ReadVInt32();
chunkSize = vectorsStream.ReadVInt32();
decompressor = compressionMode.NewDecompressor();
this.reader = new BlockPackedReaderIterator(vectorsStream, packedIntsVersion, CompressingTermVectorsWriter.BLOCK_SIZE, 0);
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(this, indexStream);
}
}
}
/// <summary>
/// expert: instantiates a new reader </summary>
protected internal Lucene45DocValuesProducer(SegmentReadState state, string dataCodec, string dataExtension, string metaCodec, string metaExtension)
{
string metaName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, metaExtension);
// read in the entries from the metadata file.
ChecksumIndexInput @in = state.Directory.OpenChecksumInput(metaName, state.Context);
this.MaxDoc = state.SegmentInfo.DocCount;
bool success = false;
try
{
Version = CodecUtil.CheckHeader(@in, metaCodec, Lucene45DocValuesFormat.VERSION_START, Lucene45DocValuesFormat.VERSION_CURRENT);
Numerics = new Dictionary <int, NumericEntry>();
Ords = new Dictionary <int, NumericEntry>();
OrdIndexes = new Dictionary <int, NumericEntry>();
Binaries = new Dictionary <int, BinaryEntry>();
SortedSets = new Dictionary <int, SortedSetEntry>();
ReadFields(@in, state.FieldInfos);
if (Version >= Lucene45DocValuesFormat.VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(@in);
}
else
{
CodecUtil.CheckEOF(@in);
}
success = true;
}
finally
{
if (success)
{
IOUtils.Close(@in);
}
else
{
IOUtils.CloseWhileHandlingException(@in);
}
}
success = false;
try
{
string dataName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, dataExtension);
Data = state.Directory.OpenInput(dataName, state.Context);
int version2 = CodecUtil.CheckHeader(Data, dataCodec, Lucene45DocValuesFormat.VERSION_START, Lucene45DocValuesFormat.VERSION_CURRENT);
if (Version != version2)
{
throw new Exception("Format versions mismatch");
}
success = true;
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(this.Data);
}
}
RamBytesUsed_Renamed = new AtomicLong(RamUsageEstimator.ShallowSizeOfInstance(this.GetType()));
}
private int ReadHeader(IndexInput @in)
{
return(CodecUtil.CheckHeader(@in, FSTTermsWriter.TERMS_CODEC_NAME, FSTTermsWriter.TERMS_VERSION_START, FSTTermsWriter.TERMS_VERSION_CURRENT));
}
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.ReadVInt32(); //read in the size
FieldInfo[] infos = new FieldInfo[size];
for (int i = 0; i < size; i++)
{
string name = input.ReadString();
int fieldNumber = input.ReadVInt32();
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;
IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = IndexOptions.NONE;
}
else if ((bits & Lucene46FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_ONLY;
}
else if ((bits & Lucene46FieldInfosFormat.OMIT_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_AND_FREQS;
}
else if ((bits & Lucene46FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS) != 0)
{
indexOptions = IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
}
else
{
indexOptions = IndexOptions.DOCS_AND_FREQS_AND_POSITIONS;
}
// DV Types are packed in one byte
byte val = input.ReadByte();
DocValuesType docValuesType = GetDocValuesType(input, (sbyte)(val & 0x0F));
DocValuesType normsType = GetDocValuesType(input, (sbyte)(((int)((uint)val >> 4)) & 0x0F));
long dvGen = input.ReadInt64();
IDictionary <string, string> attributes = input.ReadStringStringMap();
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, docValuesType, normsType, Collections.UnmodifiableMap(attributes));
infos[i].DocValuesGen = dvGen;
}
if (codecVersion >= Lucene46FieldInfosFormat.FORMAT_CHECKSUM)
{
CodecUtil.CheckFooter(input);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(input);
#pragma warning restore 612, 618
}
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.DisposeWhileHandlingException(input);
}
}
}
/// <summary>
/// Helper method that reads CFS entries from an input stream </summary>
private static IDictionary <string, FileEntry> ReadEntries(IndexInputSlicer handle, Directory dir, string name)
{
IOException priorE = null;
IndexInput stream = null;
ChecksumIndexInput entriesStream = null;
// read the first VInt. If it is negative, it's the version number
// otherwise it's the count (pre-3.1 indexes)
try
{
IDictionary <string, FileEntry> mapping;
#pragma warning disable 612, 618
stream = handle.OpenFullSlice();
#pragma warning restore 612, 618
int firstInt = stream.ReadVInt32();
// impossible for 3.0 to have 63 files in a .cfs, CFS writer was not visible
// and separate norms/etc are outside of cfs.
if (firstInt == CODEC_MAGIC_BYTE1)
{
sbyte secondByte = (sbyte)stream.ReadByte();
sbyte thirdByte = (sbyte)stream.ReadByte();
sbyte fourthByte = (sbyte)stream.ReadByte();
if (secondByte != CODEC_MAGIC_BYTE2 || thirdByte != CODEC_MAGIC_BYTE3 || fourthByte != CODEC_MAGIC_BYTE4)
{
throw new CorruptIndexException("Illegal/impossible header for CFS file: " + secondByte + "," + thirdByte + "," + fourthByte);
}
int version = CodecUtil.CheckHeaderNoMagic(stream, CompoundFileWriter.DATA_CODEC, CompoundFileWriter.VERSION_START, CompoundFileWriter.VERSION_CURRENT);
string entriesFileName = IndexFileNames.SegmentFileName(
IndexFileNames.StripExtension(name), "",
IndexFileNames.COMPOUND_FILE_ENTRIES_EXTENSION);
entriesStream = dir.OpenChecksumInput(entriesFileName, IOContext.READ_ONCE);
CodecUtil.CheckHeader(entriesStream, CompoundFileWriter.ENTRY_CODEC, CompoundFileWriter.VERSION_START, CompoundFileWriter.VERSION_CURRENT);
int numEntries = entriesStream.ReadVInt32();
mapping = new Dictionary <string, FileEntry>(numEntries);
for (int i = 0; i < numEntries; i++)
{
FileEntry fileEntry = new FileEntry();
string id = entriesStream.ReadString();
FileEntry previous = mapping.Put(id, fileEntry);
if (previous != null)
{
throw new CorruptIndexException("Duplicate cfs entry id=" + id + " in CFS: " + entriesStream);
}
fileEntry.Offset = entriesStream.ReadInt64();
fileEntry.Length = entriesStream.ReadInt64();
}
if (version >= CompoundFileWriter.VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(entriesStream);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(entriesStream);
#pragma warning restore 612, 618
}
}
else
{
// TODO remove once 3.x is not supported anymore
mapping = ReadLegacyEntries(stream, firstInt);
}
return(mapping);
}
catch (IOException ioe)
{
priorE = ioe;
}
finally
{
IOUtils.DisposeWhileHandlingException(priorE, stream, entriesStream);
}
// this is needed until Java 7's real try-with-resources:
throw new InvalidOperationException("impossible to get here");
}
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.WriteVInt32(infos.Count);
foreach (FieldInfo fi in infos)
{
IndexOptions indexOptions = fi.IndexOptions;
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.IsIndexed)
{
bits |= Lucene46FieldInfosFormat.IS_INDEXED;
// LUCENENET specific - to avoid boxing, changed from CompareTo() to IndexOptionsComparer.Compare()
if (Debugging.AssertsEnabled)
{
Debugging.Assert(IndexOptionsComparer.Default.Compare(indexOptions, IndexOptions.DOCS_AND_FREQS_AND_POSITIONS) >= 0 || !fi.HasPayloads);
}
if (indexOptions == IndexOptions.DOCS_ONLY)
{
bits |= Lucene46FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS;
}
else if (indexOptions == IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS)
{
bits |= Lucene46FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS;
}
else if (indexOptions == IndexOptions.DOCS_AND_FREQS)
{
bits |= Lucene46FieldInfosFormat.OMIT_POSITIONS;
}
}
output.WriteString(fi.Name);
output.WriteVInt32(fi.Number);
output.WriteByte((byte)bits);
// pack the DV types in one byte
var dv = DocValuesByte(fi.DocValuesType);
var nrm = DocValuesByte(fi.NormType);
if (Debugging.AssertsEnabled)
{
Debugging.Assert((dv & (~0xF)) == 0 && (nrm & (~0x0F)) == 0);
}
var val = (byte)(0xff & ((nrm << 4) | (byte)dv));
output.WriteByte(val);
output.WriteInt64(fi.DocValuesGen);
output.WriteStringStringMap(fi.Attributes);
}
CodecUtil.WriteFooter(output);
success = true;
}
finally
{
if (success)
{
output.Dispose();
}
else
{
IOUtils.DisposeWhileHandlingException(output);
}
}
}
public override FieldInfos Read(Directory directory, string segmentName, string segmentSuffix, IOContext iocontext)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, "", Lucene40FieldInfosFormat.FIELD_INFOS_EXTENSION);
IndexInput input = directory.OpenInput(fileName, iocontext);
bool success = false;
try
{
CodecUtil.CheckHeader(input, Lucene40FieldInfosFormat.CODEC_NAME, Lucene40FieldInfosFormat.FORMAT_START, Lucene40FieldInfosFormat.FORMAT_CURRENT);
int size = input.ReadVInt32(); //read in the size
FieldInfo[] infos = new FieldInfo[size];
for (int i = 0; i < size; i++)
{
string name = input.ReadString();
int fieldNumber = input.ReadVInt32();
byte bits = input.ReadByte();
bool isIndexed = (bits & Lucene40FieldInfosFormat.IS_INDEXED) != 0;
bool storeTermVector = (bits & Lucene40FieldInfosFormat.STORE_TERMVECTOR) != 0;
bool omitNorms = (bits & Lucene40FieldInfosFormat.OMIT_NORMS) != 0;
bool storePayloads = (bits & Lucene40FieldInfosFormat.STORE_PAYLOADS) != 0;
IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = IndexOptions.NONE;
}
else if ((bits & Lucene40FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_ONLY;
}
else if ((bits & Lucene40FieldInfosFormat.OMIT_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_AND_FREQS;
}
else if ((bits & Lucene40FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS) != 0)
{
indexOptions = IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
}
else
{
indexOptions = 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 (isIndexed && indexOptions.CompareTo(IndexOptions.DOCS_AND_FREQS_AND_POSITIONS) < 0)
{
storePayloads = false;
}
// DV Types are packed in one byte
byte val = input.ReadByte();
LegacyDocValuesType oldValuesType = GetDocValuesType((sbyte)(val & 0x0F));
LegacyDocValuesType oldNormsType = GetDocValuesType((sbyte)(((int)((uint)val >> 4)) & 0x0F));
IDictionary <string, string> attributes = input.ReadStringStringMap();
if (oldValuesType.GetMapping() != DocValuesType.NONE)
{
attributes[LEGACY_DV_TYPE_KEY] = oldValuesType.ToString();
}
if (oldNormsType.GetMapping() != DocValuesType.NONE)
{
if (oldNormsType.GetMapping() != DocValuesType.NUMERIC)
{
throw new CorruptIndexException("invalid norm type: " + oldNormsType + " (resource=" + input + ")");
}
attributes[LEGACY_NORM_TYPE_KEY] = oldNormsType.ToString();
}
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, oldValuesType.GetMapping(), oldNormsType.GetMapping(), attributes);
}
CodecUtil.CheckEOF(input);
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.CloseWhileHandlingException(input);
}
}
}
public FixedGapTermsIndexReader(Directory dir, FieldInfos fieldInfos, string segment, int indexDivisor,
IComparer <BytesRef> termComp, string segmentSuffix, IOContext context)
{
this.termComp = termComp;
Debug.Assert(indexDivisor == -1 || indexDivisor > 0);
input = dir.OpenInput(IndexFileNames.SegmentFileName(segment, segmentSuffix, FixedGapTermsIndexWriter.TERMS_INDEX_EXTENSION), context);
bool success = false;
try
{
version = ReadHeader(input);
if (version >= FixedGapTermsIndexWriter.VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(input);
}
indexInterval = input.ReadInt32();
if (indexInterval < 1)
{
throw new CorruptIndexException("invalid indexInterval: " + indexInterval + " (resource=" + input + ")");
}
this.indexDivisor = indexDivisor;
if (indexDivisor < 0)
{
totalIndexInterval = indexInterval;
}
else
{
// In case terms index gets loaded, later, on demand
totalIndexInterval = indexInterval * indexDivisor;
}
Debug.Assert(totalIndexInterval > 0);
SeekDir(input, dirOffset);
// Read directory
int numFields = input.ReadVInt32();
if (numFields < 0)
{
throw new CorruptIndexException("invalid numFields: " + numFields + " (resource=" + input + ")");
}
//System.out.println("FGR: init seg=" + segment + " div=" + indexDivisor + " nF=" + numFields);
for (int i = 0; i < numFields; i++)
{
int field = input.ReadVInt32();
int numIndexTerms = input.ReadVInt32();
if (numIndexTerms < 0)
{
throw new CorruptIndexException("invalid numIndexTerms: " + numIndexTerms + " (resource=" + input + ")");
}
long termsStart = input.ReadVInt64();
long indexStart = input.ReadVInt64();
long packedIndexStart = input.ReadVInt64();
long packedOffsetsStart = input.ReadVInt64();
if (packedIndexStart < indexStart)
{
throw new CorruptIndexException("invalid packedIndexStart: " + packedIndexStart + " indexStart: " + indexStart + "numIndexTerms: " + numIndexTerms + " (resource=" + input + ")");
}
FieldInfo fieldInfo = fieldInfos.FieldInfo(field);
FieldIndexData previous = fields.Put(fieldInfo, new FieldIndexData(this, fieldInfo, numIndexTerms, indexStart, termsStart, packedIndexStart, packedOffsetsStart));
if (previous != null)
{
throw new CorruptIndexException("duplicate field: " + fieldInfo.Name + " (resource=" + input + ")");
}
}
success = true;
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(input);
}
if (indexDivisor > 0)
{
input.Dispose();
input = null;
if (success)
{
indexLoaded = true;
}
termBytesReader = termBytes.Freeze(true);
}
}
}
internal Lucene42DocValuesProducer(SegmentReadState state, string dataCodec, string dataExtension, string metaCodec, string metaExtension)
{
maxDoc = state.SegmentInfo.DocCount;
string metaName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, metaExtension);
// read in the entries from the metadata file.
ChecksumIndexInput @in = state.Directory.OpenChecksumInput(metaName, state.Context);
bool success = false;
ramBytesUsed = new AtomicInt64(RamUsageEstimator.ShallowSizeOfInstance(this.GetType()));
try
{
version = CodecUtil.CheckHeader(@in, metaCodec, VERSION_START, VERSION_CURRENT);
numerics = new Dictionary <int, NumericEntry>();
binaries = new Dictionary <int, BinaryEntry>();
fsts = new Dictionary <int, FSTEntry>();
ReadFields(@in /*, state.FieldInfos // LUCENENET: Never read */);
if (version >= VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(@in);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(@in);
#pragma warning restore 612, 618
}
success = true;
}
finally
{
if (success)
{
IOUtils.Dispose(@in);
}
else
{
IOUtils.DisposeWhileHandlingException(@in);
}
}
success = false;
try
{
string dataName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, dataExtension);
data = state.Directory.OpenInput(dataName, state.Context);
int version2 = CodecUtil.CheckHeader(data, dataCodec, VERSION_START, VERSION_CURRENT);
if (version != version2)
{
throw new CorruptIndexException("Format versions mismatch");
}
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(this.data);
}
}
}
internal MemoryDocValuesProducer(SegmentReadState state, string dataCodec, string dataExtension,
string metaCodec, string metaExtension)
{
maxDoc = state.SegmentInfo.DocCount;
string metaName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, metaExtension);
// read in the entries from the metadata file.
ChecksumIndexInput @in = state.Directory.OpenChecksumInput(metaName, state.Context);
bool success = false;
try
{
version = CodecUtil.CheckHeader(@in, metaCodec, VERSION_START, VERSION_CURRENT);
numerics = new Dictionary <>();
binaries = new Dictionary <>();
fsts = new Dictionary <>();
ReadFields(@in, state.FieldInfos);
if (version >= VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(@in);
}
else
{
CodecUtil.CheckEOF(@in);
}
ramBytesUsed_Renamed = new AtomicLong(RamUsageEstimator.ShallowSizeOfInstance(this.GetType()));
success = true;
}
finally
{
if (success)
{
IOUtils.Close(@in);
}
else
{
IOUtils.CloseWhileHandlingException(@in);
}
}
success = false;
try
{
string dataName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix,
dataExtension);
data = state.Directory.OpenInput(dataName, state.Context);
int version2 = CodecUtil.CheckHeader(data, dataCodec, VERSION_START, VERSION_CURRENT);
if (version != version2)
{
throw new CorruptIndexException("Format versions mismatch");
}
success = true;
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(this.data);
}
}
}