public virtual bool MoveNext()
{
// LUCENENET specific - Since there is no way to check for a next element
// without calling this method in .NET, the assert is redundant and ineffective.
//if (Debugging.AssertsEnabled) Debugging.Assert(input.Position < input.Length); // Has next
if (input.Position < input.Length) // LUCENENET specific: Renamed from getFilePointer() to match FileStream
{
try
{
int code = input.ReadVInt32();
if ((code & 1) != 0)
{
field = input.ReadString();
}
int prefix = code.TripleShift(1);
int suffix = input.ReadVInt32();
bytes.Grow(prefix + suffix);
input.ReadBytes(bytes.Bytes, prefix, suffix);
bytes.Length = prefix + suffix;
term.Set(field, bytes);
}
catch (Exception e) when (e.IsIOException())
{
throw RuntimeException.Create(e);
}
return true;
}
return false;
}
public virtual bool MoveNext()
{
// LUCENENET specific - Since there is no way to check for a next element
// without calling this method in .NET, the assert is redundant and ineffective.
//if (Debugging.AssertsEnabled) Debugging.Assert(input.GetFilePointer() < input.Length); // Has next
if (input.GetFilePointer() < input.Length)
{
try
{
int code = input.ReadVInt32();
if ((code & 1) != 0)
{
field = input.ReadString();
}
int prefix = code.TripleShift(1);
int suffix = input.ReadVInt32();
bytes.Grow(prefix + suffix);
input.ReadBytes(bytes.Bytes, prefix, suffix);
bytes.Length = prefix + suffix;
term.Set(field, bytes);
}
catch (IOException e)
{
throw new Exception(e.ToString(), e);
}
return(true);
}
return(false);
}
public virtual bool MoveNext()
{
if (input.GetFilePointer() < input.Length)
{
try
{
int code = input.ReadVInt32();
if ((code & 1) != 0)
{
field = input.ReadString();
}
int prefix = Number.URShift(code, 1);
int suffix = input.ReadVInt32();
bytes.Grow(prefix + suffix);
input.ReadBytes(bytes.Bytes, prefix, suffix);
bytes.Length = prefix + suffix;
term.Set(field, bytes);
}
catch (IOException e)
{
throw new Exception(e.ToString(), e);
}
return(true);
}
return(false);
}
public CompoundFileReader(Directory dir, System.String name, int readBufferSize)
{
directory = dir;
fileName = name;
this.readBufferSize = readBufferSize;
bool success = false;
try
{
stream = dir.OpenInput(name, readBufferSize);
// read the directory and init files
int count = stream.ReadVInt();
FileEntry entry = null;
for (int i = 0; i < count; i++)
{
long offset = stream.ReadLong();
System.String id = stream.ReadString();
if (entry != null)
{
// set length of the previous entry
entry.length = offset - entry.offset;
}
entry = new FileEntry {
offset = offset
};
entries[id] = entry;
}
// set the length of the final entry
if (entry != null)
{
entry.length = stream.Length() - entry.offset;
}
success = true;
}
finally
{
if (!success && (stream != null))
{
try
{
stream.Close();
}
catch (System.IO.IOException)
{
}
}
}
}
private void Read(IndexInput input, String fileName)
{
int firstInt = input.ReadVInt();
if (firstInt < 0)
{
// This is a real format
format = firstInt;
}
else
{
format = FORMAT_PRE;
}
if (format != FORMAT_PRE & format != FORMAT_START)
{
throw new CorruptIndexException("unrecognized format " + format + " in file \"" + fileName + "\"");
}
int size;
if (format == FORMAT_PRE)
{
size = firstInt;
}
else
{
size = input.ReadVInt(); //read in the size
}
for (int i = 0; i < size; i++)
{
String name = StringHelper.Intern(input.ReadString());
byte bits = input.ReadByte();
bool isIndexed = (bits & IS_INDEXED) != 0;
bool storeTermVector = (bits & STORE_TERMVECTOR) != 0;
bool storePositionsWithTermVector = (bits & STORE_POSITIONS_WITH_TERMVECTOR) != 0;
bool storeOffsetWithTermVector = (bits & STORE_OFFSET_WITH_TERMVECTOR) != 0;
bool omitNorms = (bits & OMIT_NORMS) != 0;
bool storePayloads = (bits & STORE_PAYLOADS) != 0;
bool omitTermFreqAndPositions = (bits & OMIT_TERM_FREQ_AND_POSITIONS) != 0;
AddInternal(name, isIndexed, storeTermVector, storePositionsWithTermVector, storeOffsetWithTermVector, omitNorms, storePayloads, omitTermFreqAndPositions);
}
if (input.FilePointer != input.Length())
{
throw new CorruptIndexException("did not read all bytes from file \"" + fileName + "\": read " + input.FilePointer + " vs size " + input.Length());
}
}
public bool MoveNext()
{
if (input.FilePointer < input.Length())
{
int code = input.ReadVInt();
if ((code & 1) != 0)
{
field = input.ReadString();
}
int prefix = Number.URShift(code, 1);
int suffix = input.ReadVInt();
bytes.Grow(prefix + suffix);
input.ReadBytes(bytes.Bytes, prefix, suffix);
bytes.Length = prefix + suffix;
term.Set(field, bytes);
return(true);
}
return(false);
}
private SegmentInfo ReadUpgradedSegmentInfo(string name, Directory dir, IndexInput input)
{
CodecUtil.CheckHeader(input, Lucene3xSegmentInfoFormat.UPGRADED_SI_CODEC_NAME, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_START, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_CURRENT);
string version = input.ReadString();
int docCount = input.ReadInt();
IDictionary <string, string> attributes = input.ReadStringStringMap();
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
IDictionary <string, string> diagnostics = input.ReadStringStringMap();
ISet <string> files = input.ReadStringSet();
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, CollectionsHelper.UnmodifiableMap(attributes));
info.Files = files;
return(info);
}
public override SegmentInfo Read(Directory dir, string segment, IOContext context)
{
string fileName = IndexFileNames.SegmentFileName(segment, "", Lucene40SegmentInfoFormat.SI_EXTENSION);
IndexInput input = dir.OpenInput(fileName, context);
bool success = false;
try
{
CodecUtil.CheckHeader(input, Lucene40SegmentInfoFormat.CODEC_NAME, Lucene40SegmentInfoFormat.VERSION_START, Lucene40SegmentInfoFormat.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();
input.ReadStringStringMap(); // read deprecated attributes
ISet <string> files = input.ReadStringSet();
CodecUtil.CheckEOF(input);
SegmentInfo si = new SegmentInfo(dir, version, segment, docCount, isCompoundFile, null, diagnostics);
si.SetFiles(files);
success = true;
return(si);
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(input);
}
else
{
input.Dispose();
}
}
}
private void AddField(Document.Document doc, FieldInfo fi, bool binary, bool compressed, bool tokenize)
{
//we have a binary stored field, and it may be compressed
if (binary)
{
int toRead = fieldsStream.ReadVInt();
var b = new byte[toRead];
fieldsStream.ReadBytes(b, 0, b.Length);
doc.Add(compressed ? new Field(fi.name, Uncompress(b), Field.Store.YES) : new Field(fi.name, b, Field.Store.YES));
}
else
{
const Field.Store store = Field.Store.YES;
Field.Index index = FieldExtensions.ToIndex(fi.isIndexed, tokenize);
Field.TermVector termVector = FieldExtensions.ToTermVector(fi.storeTermVector, fi.storeOffsetWithTermVector, fi.storePositionWithTermVector);
AbstractField f;
if (compressed)
{
int toRead = fieldsStream.ReadVInt();
var b = new byte[toRead];
fieldsStream.ReadBytes(b, 0, b.Length);
f = new Field(fi.name, false, System.Text.Encoding.GetEncoding("UTF-8").GetString(Uncompress(b)), store, index,
termVector)
{
OmitTermFreqAndPositions = fi.omitTermFreqAndPositions, OmitNorms = fi.omitNorms
};
}
else
{
f = new Field(fi.name, false, fieldsStream.ReadString(), store, index, termVector)
{
OmitTermFreqAndPositions = fi.omitTermFreqAndPositions, OmitNorms = fi.omitNorms
};
}
doc.Add(f);
}
}
public override FieldInfos Read(Directory directory, string segmentName, string segmentSuffix, IOContext iocontext)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, "", Lucene42FieldInfosFormat.EXTENSION);
IndexInput input = directory.OpenInput(fileName, iocontext);
bool success = false;
try
{
CodecUtil.CheckHeader(input, Lucene42FieldInfosFormat.CODEC_NAME,
Lucene42FieldInfosFormat.FORMAT_START,
Lucene42FieldInfosFormat.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();
sbyte bits = (sbyte)input.ReadByte();
bool isIndexed = (bits & Lucene42FieldInfosFormat.IS_INDEXED) != 0;
bool storeTermVector = (bits & Lucene42FieldInfosFormat.STORE_TERMVECTOR) != 0;
bool omitNorms = (bits & Lucene42FieldInfosFormat.OMIT_NORMS) != 0;
bool storePayloads = (bits & Lucene42FieldInfosFormat.STORE_PAYLOADS) != 0;
IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = IndexOptions.NONE;
}
else if ((bits & Lucene42FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_ONLY;
}
else if ((bits & Lucene42FieldInfosFormat.OMIT_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_AND_FREQS;
}
else if ((bits & Lucene42FieldInfosFormat.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
sbyte val = (sbyte)input.ReadByte();
DocValuesType docValuesType = GetDocValuesType(input, (byte)(val & 0x0F));
DocValuesType normsType = GetDocValuesType(input, (byte)((val.TripleShift(4)) & 0x0F));
IDictionary <string, string> attributes = input.ReadStringStringMap();
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector,
omitNorms, storePayloads, indexOptions, docValuesType, normsType, attributes.AsReadOnly());
}
CodecUtil.CheckEOF(input);
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.DisposeWhileHandlingException(input);
}
}
}
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.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 & 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;
FieldInfo.IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = default(FieldInfo.IndexOptions);
}
else if ((bits & Lucene40FieldInfosFormat.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_ONLY;
}
else if ((bits & Lucene40FieldInfosFormat.OMIT_POSITIONS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS;
}
else if ((bits & Lucene40FieldInfosFormat.STORE_OFFSETS_IN_POSTINGS) != 0)
{
indexOptions = FieldInfo.IndexOptions.DOCS_AND_FREQS_AND_POSITIONS_AND_OFFSETS;
}
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 (isIndexed && indexOptions.CompareTo(FieldInfo.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.Mapping != null)
{
attributes[LEGACY_DV_TYPE_KEY] = oldValuesType.Name;
}
if (oldNormsType.Mapping != null)
{
if (oldNormsType.Mapping != FieldInfo.DocValuesType_e.NUMERIC)
{
throw new CorruptIndexException("invalid norm type: " + oldNormsType + " (resource=" + input + ")");
}
attributes[LEGACY_NORM_TYPE_KEY] = oldNormsType.Name;
}
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector, omitNorms, storePayloads, indexOptions, oldValuesType.Mapping, oldNormsType.Mapping, attributes);
}
CodecUtil.CheckEOF(input);
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.CloseWhileHandlingException(input);
}
}
}
private SegmentInfo ReadUpgradedSegmentInfo(string name, Directory dir, IndexInput input)
{
CodecUtil.CheckHeader(input, Lucene3xSegmentInfoFormat.UPGRADED_SI_CODEC_NAME, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_START, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_CURRENT);
string version = input.ReadString();
int docCount = input.ReadInt();
IDictionary<string, string> attributes = input.ReadStringStringMap();
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
IDictionary<string, string> diagnostics = input.ReadStringStringMap();
ISet<string> files = input.ReadStringSet();
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, CollectionsHelper.UnmodifiableMap(attributes));
info.Files = files;
return info;
}
/// <summary>
/// reads from legacy 3.x segments_N </summary>
private SegmentCommitInfo ReadLegacySegmentInfo(Directory dir, int format, IndexInput input)
{
// check that it is a format we can understand
if (format > Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS)
{
throw new IndexFormatTooOldException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
if (format < Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
throw new IndexFormatTooNewException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
string version;
if (format <= Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
version = input.ReadString();
}
else
{
version = null;
}
string name = input.ReadString();
int docCount = input.ReadInt();
long delGen = input.ReadLong();
int docStoreOffset = input.ReadInt();
IDictionary<string, string> attributes = new Dictionary<string, string>();
// parse the docstore stuff and shove it into attributes
string docStoreSegment;
bool docStoreIsCompoundFile;
if (docStoreOffset != -1)
{
docStoreSegment = input.ReadString();
docStoreIsCompoundFile = input.ReadByte() == SegmentInfo.YES;
attributes[Lucene3xSegmentInfoFormat.DS_OFFSET_KEY] = Convert.ToString(docStoreOffset);
attributes[Lucene3xSegmentInfoFormat.DS_NAME_KEY] = docStoreSegment;
attributes[Lucene3xSegmentInfoFormat.DS_COMPOUND_KEY] = Convert.ToString(docStoreIsCompoundFile);
}
else
{
docStoreSegment = name;
docStoreIsCompoundFile = false;
}
// pre-4.0 indexes write a byte if there is a single norms file
byte b = input.ReadByte();
//System.out.println("version=" + version + " name=" + name + " docCount=" + docCount + " delGen=" + delGen + " dso=" + docStoreOffset + " dss=" + docStoreSegment + " dssCFs=" + docStoreIsCompoundFile + " b=" + b + " format=" + format);
Debug.Assert(1 == b, "expected 1 but was: " + b + " format: " + format);
int numNormGen = input.ReadInt();
IDictionary<int, long> normGen;
if (numNormGen == SegmentInfo.NO)
{
normGen = null;
}
else
{
normGen = new Dictionary<int, long>();
for (int j = 0; j < numNormGen; j++)
{
normGen[j] = input.ReadLong();
}
}
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
int delCount = input.ReadInt();
Debug.Assert(delCount <= docCount);
bool hasProx = input.ReadByte() == 1;
IDictionary<string, string> diagnostics = input.ReadStringStringMap();
if (format <= Lucene3xSegmentInfoFormat.FORMAT_HAS_VECTORS)
{
// NOTE: unused
int hasVectors = input.ReadByte();
}
// Replicate logic from 3.x's SegmentInfo.files():
ISet<string> files = new HashSet<string>();
if (isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", IndexFileNames.COMPOUND_FILE_EXTENSION));
}
else
{
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xFieldInfosReader.FIELD_INFOS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.FREQ_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.PROX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xNormsProducer.NORMS_EXTENSION));
}
if (docStoreOffset != -1)
{
if (docStoreIsCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xCodec.COMPOUND_FILE_STORE_EXTENSION));
}
else
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
}
else if (!isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
// parse the normgen stuff and shove it into attributes
if (normGen != null)
{
attributes[Lucene3xSegmentInfoFormat.NORMGEN_KEY] = Convert.ToString(numNormGen);
foreach (KeyValuePair<int, long> ent in normGen)
{
long gen = ent.Value;
if (gen >= SegmentInfo.YES)
{
// Definitely a separate norm file, with generation:
files.Add(IndexFileNames.FileNameFromGeneration(name, "s" + ent.Key, gen));
attributes[Lucene3xSegmentInfoFormat.NORMGEN_PREFIX + ent.Key] = Convert.ToString(gen);
}
else if (gen == SegmentInfo.NO)
{
// No separate norm
}
else
{
// We should have already hit indexformat too old exception
Debug.Assert(false);
}
}
}
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, CollectionsHelper.UnmodifiableMap(attributes));
info.Files = files;
SegmentCommitInfo infoPerCommit = new SegmentCommitInfo(info, delCount, delGen, -1);
return infoPerCommit;
}
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.ReadVInt32();
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.ReadVInt32(); //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.ReadInt32() : 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;
IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = IndexOptions.NONE;
}
else if ((bits & PreFlexRWFieldInfosWriter.OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_ONLY;
}
else if ((bits & PreFlexRWFieldInfosWriter.OMIT_POSITIONS) != 0)
{
if (format <= PreFlexRWFieldInfosWriter.FORMAT_OMIT_POSITIONS)
{
indexOptions = IndexOptions.DOCS_AND_FREQS;
}
else
{
throw new CorruptIndexException("Corrupt fieldinfos, OMIT_POSITIONS set but format=" + format + " (resource: " + input + ")");
}
}
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 (indexOptions != IndexOptions.DOCS_AND_FREQS_AND_POSITIONS)
{
storePayloads = false;
}
DocValuesType normType = isIndexed && !omitNorms ? DocValuesType.NUMERIC : DocValuesType.NONE;
if (format == PreFlexRWFieldInfosWriter.FORMAT_PREFLEX_RW && normType != DocValuesType.NONE)
{
// RW can have norms but doesn't write them
normType = input.ReadByte() != 0 ? DocValuesType.NUMERIC : DocValuesType.NONE;
}
infos[i] = new FieldInfo(name,
isIndexed,
fieldNumber,
storeTermVector,
omitNorms,
storePayloads,
indexOptions,
DocValuesType.NONE,
normType,
null);
}
if (input.GetFilePointer() != input.Length)
{
throw new CorruptIndexException("did not read all bytes from file \"" + fileName + "\": read " + input.GetFilePointer() + " vs size " + input.Length + " (resource: " + input + ")");
}
return(new FieldInfos(infos));
}
finally
{
input.Dispose();
}
}
/// <summary> Construct a new SegmentInfo instance by reading a
/// previously saved SegmentInfo from input.
///
/// </summary>
/// <param name="dir">directory to load from
/// </param>
/// <param name="format">format of the segments info file
/// </param>
/// <param name="input">input handle to read segment info from
/// </param>
internal SegmentInfo(Directory dir, int format, IndexInput input)
{
this.dir = dir;
name = input.ReadString();
docCount = input.ReadInt();
if (format <= SegmentInfos.FORMAT_LOCKLESS)
{
delGen = input.ReadLong();
if (format <= SegmentInfos.FORMAT_SHARED_DOC_STORE)
{
docStoreOffset = input.ReadInt();
if (docStoreOffset != -1)
{
docStoreSegment = input.ReadString();
docStoreIsCompoundFile = (1 == input.ReadByte());
}
else
{
docStoreSegment = name;
docStoreIsCompoundFile = false;
}
}
else
{
docStoreOffset = -1;
docStoreSegment = name;
docStoreIsCompoundFile = false;
}
if (format <= SegmentInfos.FORMAT_SINGLE_NORM_FILE)
{
hasSingleNormFile = (1 == input.ReadByte());
}
else
{
hasSingleNormFile = false;
}
int numNormGen = input.ReadInt();
if (numNormGen == NO)
{
normGen = null;
}
else
{
normGen = new long[numNormGen];
for (int j = 0; j < numNormGen; j++)
{
normGen[j] = input.ReadLong();
}
}
isCompoundFile = (sbyte)input.ReadByte();
preLockless = (isCompoundFile == CHECK_DIR);
if (format <= SegmentInfos.FORMAT_DEL_COUNT)
{
delCount = input.ReadInt();
System.Diagnostics.Debug.Assert(delCount <= docCount);
}
else
{
delCount = -1;
}
if (format <= SegmentInfos.FORMAT_HAS_PROX)
{
hasProx = input.ReadByte() == 1;
}
else
{
hasProx = true;
}
if (format <= SegmentInfos.FORMAT_DIAGNOSTICS)
{
diagnostics = input.ReadStringStringMap();
}
else
{
diagnostics = new Dictionary <string, string>();
}
}
else
{
delGen = CHECK_DIR;
normGen = null;
isCompoundFile = (sbyte)(CHECK_DIR);
preLockless = true;
hasSingleNormFile = false;
docStoreOffset = -1;
docStoreIsCompoundFile = false;
docStoreSegment = null;
delCount = -1;
hasProx = true;
diagnostics = new Dictionary <string, string>();
}
}
public override FieldInfos Read(Directory directory, string segmentName, string segmentSuffix, IOContext iocontext)
{
string fileName = IndexFileNames.SegmentFileName(segmentName, "", FIELD_INFOS_EXTENSION);
IndexInput input = directory.OpenInput(fileName, iocontext);
bool success = false;
try
{
int format = input.ReadVInt32();
if (format > FORMAT_MINIMUM)
{
throw new IndexFormatTooOldException(input, format, FORMAT_MINIMUM, FORMAT_CURRENT);
}
if (format < FORMAT_CURRENT)
{
throw new IndexFormatTooNewException(input, format, FORMAT_MINIMUM, 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 = i;
byte bits = input.ReadByte();
bool isIndexed = (bits & IS_INDEXED) != 0;
bool storeTermVector = (bits & STORE_TERMVECTOR) != 0;
bool omitNorms = (bits & OMIT_NORMS) != 0;
bool storePayloads = (bits & STORE_PAYLOADS) != 0;
IndexOptions indexOptions;
if (!isIndexed)
{
indexOptions = IndexOptions.NONE;
}
else if ((bits & OMIT_TERM_FREQ_AND_POSITIONS) != 0)
{
indexOptions = IndexOptions.DOCS_ONLY;
}
else if ((bits & OMIT_POSITIONS) != 0)
{
if (format <= FORMAT_OMIT_POSITIONS)
{
indexOptions = IndexOptions.DOCS_AND_FREQS;
}
else
{
throw new CorruptIndexException("Corrupt fieldinfos, OMIT_POSITIONS set but format=" + format + " (resource: " + input + ")");
}
}
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 (indexOptions != IndexOptions.DOCS_AND_FREQS_AND_POSITIONS)
{
storePayloads = false;
}
infos[i] = new FieldInfo(name, isIndexed, fieldNumber, storeTermVector,
omitNorms, storePayloads, indexOptions, DocValuesType.NONE,
isIndexed && !omitNorms ? DocValuesType.NUMERIC : DocValuesType.NONE,
Collections.EmptyMap <string, string>());
}
if (input.GetFilePointer() != input.Length)
{
throw new CorruptIndexException("did not read all bytes from file \"" + fileName + "\": read " + input.GetFilePointer() + " vs size " + input.Length + " (resource: " + input + ")");
}
FieldInfos fieldInfos = new FieldInfos(infos);
success = true;
return(fieldInfos);
}
finally
{
if (success)
{
input.Dispose();
}
else
{
IOUtils.DisposeWhileHandlingException(input);
}
}
}
/// <summary>
/// reads from legacy 3.x segments_N </summary>
private SegmentCommitInfo ReadLegacySegmentInfo(Directory dir, int format, IndexInput input)
{
// check that it is a format we can understand
if (format > Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS)
{
throw new IndexFormatTooOldException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
if (format < Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
throw new IndexFormatTooNewException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
string version;
if (format <= Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
version = input.ReadString();
}
else
{
version = null;
}
string name = input.ReadString();
int docCount = input.ReadInt();
long delGen = input.ReadLong();
int docStoreOffset = input.ReadInt();
IDictionary <string, string> attributes = new Dictionary <string, string>();
// parse the docstore stuff and shove it into attributes
string docStoreSegment;
bool docStoreIsCompoundFile;
if (docStoreOffset != -1)
{
docStoreSegment = input.ReadString();
docStoreIsCompoundFile = input.ReadByte() == SegmentInfo.YES;
attributes[Lucene3xSegmentInfoFormat.DS_OFFSET_KEY] = Convert.ToString(docStoreOffset);
attributes[Lucene3xSegmentInfoFormat.DS_NAME_KEY] = docStoreSegment;
attributes[Lucene3xSegmentInfoFormat.DS_COMPOUND_KEY] = Convert.ToString(docStoreIsCompoundFile);
}
else
{
docStoreSegment = name;
docStoreIsCompoundFile = false;
}
// pre-4.0 indexes write a byte if there is a single norms file
byte b = input.ReadByte();
//System.out.println("version=" + version + " name=" + name + " docCount=" + docCount + " delGen=" + delGen + " dso=" + docStoreOffset + " dss=" + docStoreSegment + " dssCFs=" + docStoreIsCompoundFile + " b=" + b + " format=" + format);
Debug.Assert(1 == b, "expected 1 but was: " + b + " format: " + format);
int numNormGen = input.ReadInt();
IDictionary <int, long> normGen;
if (numNormGen == SegmentInfo.NO)
{
normGen = null;
}
else
{
normGen = new Dictionary <int, long>();
for (int j = 0; j < numNormGen; j++)
{
normGen[j] = input.ReadLong();
}
}
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
int delCount = input.ReadInt();
Debug.Assert(delCount <= docCount);
bool hasProx = input.ReadByte() == 1;
IDictionary <string, string> diagnostics = input.ReadStringStringMap();
if (format <= Lucene3xSegmentInfoFormat.FORMAT_HAS_VECTORS)
{
// NOTE: unused
int hasVectors = input.ReadByte();
}
// Replicate logic from 3.x's SegmentInfo.files():
ISet <string> files = new HashSet <string>();
if (isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", IndexFileNames.COMPOUND_FILE_EXTENSION));
}
else
{
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xFieldInfosReader.FIELD_INFOS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.FREQ_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.PROX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xNormsProducer.NORMS_EXTENSION));
}
if (docStoreOffset != -1)
{
if (docStoreIsCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xCodec.COMPOUND_FILE_STORE_EXTENSION));
}
else
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
}
else if (!isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
// parse the normgen stuff and shove it into attributes
if (normGen != null)
{
attributes[Lucene3xSegmentInfoFormat.NORMGEN_KEY] = Convert.ToString(numNormGen);
foreach (KeyValuePair <int, long> ent in normGen)
{
long gen = ent.Value;
if (gen >= SegmentInfo.YES)
{
// Definitely a separate norm file, with generation:
files.Add(IndexFileNames.FileNameFromGeneration(name, "s" + ent.Key, gen));
attributes[Lucene3xSegmentInfoFormat.NORMGEN_PREFIX + ent.Key] = Convert.ToString(gen);
}
else if (gen == SegmentInfo.NO)
{
// No separate norm
}
else
{
// We should have already hit indexformat too old exception
Debug.Assert(false);
}
}
}
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, CollectionsHelper.UnmodifiableMap(attributes));
info.Files = files;
SegmentCommitInfo infoPerCommit = new SegmentCommitInfo(info, delCount, delGen, -1);
return(infoPerCommit);
}