internal static BinaryEntry ReadBinaryEntry(IndexInput meta)
{
BinaryEntry entry = new BinaryEntry();
entry.format = meta.ReadVInt32();
entry.missingOffset = meta.ReadInt64();
entry.minLength = meta.ReadVInt32();
entry.maxLength = meta.ReadVInt32();
entry.Count = meta.ReadVInt64();
entry.offset = meta.ReadInt64();
switch (entry.format)
{
case Lucene45DocValuesConsumer.BINARY_FIXED_UNCOMPRESSED:
break;
case Lucene45DocValuesConsumer.BINARY_PREFIX_COMPRESSED:
entry.AddressInterval = meta.ReadVInt32();
entry.AddressesOffset = meta.ReadInt64();
entry.PackedInt32sVersion = meta.ReadVInt32();
entry.BlockSize = meta.ReadVInt32();
break;
case Lucene45DocValuesConsumer.BINARY_VARIABLE_UNCOMPRESSED:
entry.AddressesOffset = meta.ReadInt64();
entry.PackedInt32sVersion = meta.ReadVInt32();
entry.BlockSize = meta.ReadVInt32();
break;
default:
throw new Exception("Unknown format: " + entry.format + ", input=" + meta);
}
return(entry);
}
/// <summary>
/// NOTE: This was loadVarIntsField() in Lucene.
/// </summary>
private NumericDocValues LoadVarInt32sField(/*FieldInfo field, // LUCENENET: Never read */ IndexInput input)
{
CodecUtil.CheckHeader(input, Lucene40DocValuesFormat.VAR_INTS_CODEC_NAME, Lucene40DocValuesFormat.VAR_INTS_VERSION_START, Lucene40DocValuesFormat.VAR_INTS_VERSION_CURRENT);
var header = (sbyte)input.ReadByte();
if (header == Lucene40DocValuesFormat.VAR_INTS_FIXED_64)
{
int maxDoc = state.SegmentInfo.DocCount;
var values = new long[maxDoc];
for (int i = 0; i < values.Length; i++)
{
values[i] = input.ReadInt64();
}
ramBytesUsed.AddAndGet(RamUsageEstimator.SizeOf(values));
return(new NumericDocValuesAnonymousClass(values));
}
else if (header == Lucene40DocValuesFormat.VAR_INTS_PACKED)
{
long minValue = input.ReadInt64();
long defaultValue = input.ReadInt64();
PackedInt32s.Reader reader = PackedInt32s.GetReader(input);
ramBytesUsed.AddAndGet(reader.RamBytesUsed());
return(new NumericDocValuesAnonymousClass2(minValue, defaultValue, reader));
}
else
{
throw new CorruptIndexException("invalid VAR_INTS header byte: " + header + " (resource=" + input + ")");
}
}
public override void VisitDocument(int n, StoredFieldVisitor visitor)
{
SeekIndex(n);
fieldsStream.Seek(indexStream.ReadInt64());
int numFields = fieldsStream.ReadVInt32();
for (int fieldIDX = 0; fieldIDX < numFields; fieldIDX++)
{
int fieldNumber = fieldsStream.ReadVInt32();
FieldInfo fieldInfo = fieldInfos.FieldInfo(fieldNumber);
int bits = fieldsStream.ReadByte() & 0xFF;
Debug.Assert(bits <= (Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_MASK | Lucene40StoredFieldsWriter.FIELD_IS_BINARY), "bits=" + bits.ToString("x"));
switch (visitor.NeedsField(fieldInfo))
{
case StoredFieldVisitor.Status.YES:
ReadField(visitor, fieldInfo, bits);
break;
case StoredFieldVisitor.Status.NO:
SkipField(bits);
break;
case StoredFieldVisitor.Status.STOP:
return;
}
}
}
/// <summary>
/// Retrieve the length (in bytes) of the tvd and tvf
/// entries for the next <paramref name="numDocs"/> starting with
/// <paramref name="startDocID"/>. This is used for bulk copying when
/// merging segments, if the field numbers are
/// congruent. Once this returns, the tvf & tvd streams
/// are seeked to the <paramref name="startDocID"/>.
/// </summary>
internal void RawDocs(int[] tvdLengths, int[] tvfLengths, int startDocID, int numDocs)
{
if (tvx == null)
{
Arrays.Fill(tvdLengths, 0);
Arrays.Fill(tvfLengths, 0);
return;
}
SeekTvx(startDocID);
long tvdPosition = tvx.ReadInt64();
tvd.Seek(tvdPosition);
long tvfPosition = tvx.ReadInt64();
tvf.Seek(tvfPosition);
long lastTvdPosition = tvdPosition;
long lastTvfPosition = tvfPosition;
int count = 0;
while (count < numDocs)
{
int docID = startDocID + count + 1;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(docID <= numTotalDocs);
}
if (docID < numTotalDocs)
{
tvdPosition = tvx.ReadInt64();
tvfPosition = tvx.ReadInt64();
}
else
{
tvdPosition = tvd.Length;
tvfPosition = tvf.Length;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(count == numDocs - 1);
}
}
tvdLengths[count] = (int)(tvdPosition - lastTvdPosition);
tvfLengths[count] = (int)(tvfPosition - lastTvfPosition);
count++;
lastTvdPosition = tvdPosition;
lastTvfPosition = tvfPosition;
}
}
private void SeekDir(IndexInput input, long dirOffset)
{
if (version >= BlockTermsWriter.VERSION_CHECKSUM)
{
input.Seek(input.Length - CodecUtil.FooterLength() - 8);
dirOffset = input.ReadInt64();
}
else if (version >= BlockTermsWriter.VERSION_APPEND_ONLY)
{
input.Seek(input.Length - 8);
dirOffset = input.ReadInt64();
}
input.Seek(dirOffset);
}
public override sealed void VisitDocument(int n, StoredFieldVisitor visitor)
{
SeekIndex(n);
fieldsStream.Seek(indexStream.ReadInt64());
int numFields = fieldsStream.ReadVInt32();
for (int fieldIDX = 0; fieldIDX < numFields; fieldIDX++)
{
int fieldNumber = fieldsStream.ReadVInt32();
FieldInfo fieldInfo = fieldInfos.FieldInfo(fieldNumber);
int bits = fieldsStream.ReadByte() & 0xFF;
if (Debugging.AssertsEnabled)
{
Debugging.Assert(bits <= (FIELD_IS_NUMERIC_MASK | FIELD_IS_BINARY), "bits={0:x}", bits);
}
switch (visitor.NeedsField(fieldInfo))
{
case StoredFieldVisitor.Status.YES:
ReadField(visitor, fieldInfo, bits);
break;
case StoredFieldVisitor.Status.NO:
SkipField(bits);
break;
case StoredFieldVisitor.Status.STOP:
return;
}
}
}
protected override void SeekDir(IndexInput input, long dirOffset)
{
input.Seek(input.Length - sizeof(long) / 8);
long offset = input.ReadInt64();
input.Seek(offset);
}
public static void ReadLegacyInfos(SegmentInfos infos, Directory directory, IndexInput input, int format)
{
infos.Version = input.ReadInt64(); // read version
infos.Counter = input.ReadInt32(); // read counter
Lucene3xSegmentInfoReader reader = new Lucene3xSegmentInfoReader();
for (int i = input.ReadInt32(); i > 0; i--) // read segmentInfos
{
SegmentCommitInfo siPerCommit = reader.ReadLegacySegmentInfo(directory, format, input);
SegmentInfo si = siPerCommit.Info;
if (si.Version == null)
{
// Could be a 3.0 - try to open the doc stores - if it fails, it's a
// 2.x segment, and an IndexFormatTooOldException will be thrown,
// which is what we want.
Directory dir = directory;
if (Lucene3xSegmentInfoFormat.GetDocStoreOffset(si) != -1)
{
if (Lucene3xSegmentInfoFormat.GetDocStoreIsCompoundFile(si))
{
dir = new CompoundFileDirectory(dir, IndexFileNames.SegmentFileName(Lucene3xSegmentInfoFormat.GetDocStoreSegment(si), "", Lucene3xCodec.COMPOUND_FILE_STORE_EXTENSION), IOContext.READ_ONCE, false);
}
}
else if (si.UseCompoundFile)
{
dir = new CompoundFileDirectory(dir, IndexFileNames.SegmentFileName(si.Name, "", IndexFileNames.COMPOUND_FILE_EXTENSION), IOContext.READ_ONCE, false);
}
try
{
Lucene3xStoredFieldsReader.CheckCodeVersion(dir, Lucene3xSegmentInfoFormat.GetDocStoreSegment(si));
}
finally
{
// If we opened the directory, close it
if (dir != directory)
{
dir.Dispose();
}
}
// Above call succeeded, so it's a 3.0 segment. Upgrade it so the next
// time the segment is read, its version won't be null and we won't
// need to open FieldsReader every time for each such segment.
si.Version = "3.0";
}
else if (si.Version.Equals("2.x", StringComparison.Ordinal))
{
// If it's a 3x index touched by 3.1+ code, then segments record their
// version, whether they are 2.x ones or not. We detect that and throw
// appropriate exception.
throw new IndexFormatTooOldException("segment " + si.Name + " in resource " + input, si.Version);
}
infos.Add(siPerCommit);
}
infos.UserData = input.ReadStringStringMap();
}
private void ReadField(StoredFieldVisitor visitor, FieldInfo info, int bits)
{
int numeric = bits & Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_MASK;
if (numeric != 0)
{
switch (numeric)
{
case Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_INT:
visitor.Int32Field(info, fieldsStream.ReadInt32());
return;
case Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_LONG:
visitor.Int64Field(info, fieldsStream.ReadInt64());
return;
case Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_FLOAT:
visitor.SingleField(info, J2N.BitConversion.Int32BitsToSingle(fieldsStream.ReadInt32()));
return;
case Lucene40StoredFieldsWriter.FIELD_IS_NUMERIC_DOUBLE:
visitor.DoubleField(info, J2N.BitConversion.Int64BitsToDouble(fieldsStream.ReadInt64()));
return;
default:
throw new CorruptIndexException("Invalid numeric type: " + numeric.ToString("x"));
}
}
else
{
int length = fieldsStream.ReadVInt32();
var bytes = new byte[length];
fieldsStream.ReadBytes(bytes, 0, length);
if ((bits & Lucene40StoredFieldsWriter.FIELD_IS_BINARY) != 0)
{
visitor.BinaryField(info, bytes);
}
else
{
#pragma warning disable 612, 618
visitor.StringField(info, IOUtils.CHARSET_UTF_8.GetString(bytes));
#pragma warning restore 612, 618
}
}
}
private NumericEntry ReadNumericEntry(IndexInput meta)
{
var entry = new NumericEntry {
offset = meta.ReadInt64(), count = meta.ReadInt32(), missingOffset = meta.ReadInt64()
};
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
entry.byteWidth = meta.ReadByte();
return(entry);
}
private static NumericEntry ReadNumericEntry(IndexInput meta) // LUCENENET: CA1822: Mark members as static
{
var entry = new NumericEntry {
offset = meta.ReadInt64(), count = meta.ReadInt32(), missingOffset = meta.ReadInt64()
};
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
entry.byteWidth = meta.ReadByte();
return(entry);
}
private static BinaryEntry ReadBinaryEntry(IndexInput meta) // LUCENENET: CA1822: Mark members as static
{
var entry = new BinaryEntry();
entry.offset = meta.ReadInt64();
entry.numBytes = meta.ReadInt32();
entry.count = meta.ReadInt32();
entry.missingOffset = meta.ReadInt64();
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
return(entry);
}
private BinaryEntry ReadBinaryEntry(IndexInput meta)
{
var entry = new BinaryEntry();
entry.offset = meta.ReadInt64();
entry.numBytes = meta.ReadInt32();
entry.count = meta.ReadInt32();
entry.missingOffset = meta.ReadInt64();
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
return(entry);
}
internal static NumericEntry ReadNumericEntry(IndexInput meta)
{
NumericEntry entry = new NumericEntry();
entry.format = meta.ReadVInt32();
entry.missingOffset = meta.ReadInt64();
entry.PackedInt32sVersion = meta.ReadVInt32();
entry.Offset = meta.ReadInt64();
entry.Count = meta.ReadVInt64();
entry.BlockSize = meta.ReadVInt32();
switch (entry.format)
{
case Lucene45DocValuesConsumer.GCD_COMPRESSED:
entry.minValue = meta.ReadInt64();
entry.gcd = meta.ReadInt64();
break;
case Lucene45DocValuesConsumer.TABLE_COMPRESSED:
if (entry.Count > int.MaxValue)
{
throw new Exception("Cannot use TABLE_COMPRESSED with more than MAX_VALUE values, input=" + meta);
}
int uniqueValues = meta.ReadVInt32();
if (uniqueValues > 256)
{
throw new Exception("TABLE_COMPRESSED cannot have more than 256 distinct values, input=" + meta);
}
entry.table = new long[uniqueValues];
for (int i = 0; i < uniqueValues; ++i)
{
entry.table[i] = meta.ReadInt64();
}
break;
case Lucene45DocValuesConsumer.DELTA_COMPRESSED:
break;
default:
throw new Exception("Unknown format: " + entry.format + ", input=" + meta);
}
return(entry);
}
private int ReadHeader(IndexInput input)
{
int version = CodecUtil.CheckHeader(input, VariableGapTermsIndexWriter.CODEC_NAME,
VariableGapTermsIndexWriter.VERSION_START, VariableGapTermsIndexWriter.VERSION_CURRENT);
if (version < VariableGapTermsIndexWriter.VERSION_APPEND_ONLY)
{
dirOffset = input.ReadInt64();
}
return(version);
}
private void SeekDir(IndexInput @in)
{
if (version >= FSTTermsWriter.TERMS_VERSION_CHECKSUM)
{
@in.Seek(@in.Length - CodecUtil.FooterLength() - 8);
}
else
{
@in.Seek(@in.Length - 8);
}
@in.Seek(@in.ReadInt64());
}
public SegmentTermEnum(IndexInput i, FieldInfos fis, bool isi)
{
input = i;
fieldInfos = fis;
isIndex = isi;
maxSkipLevels = 1; // use single-level skip lists for formats > -3
int firstInt = input.ReadInt32();
if (firstInt >= 0)
{
// original-format file, without explicit format version number
format = 0;
size = firstInt;
// back-compatible settings
indexInterval = 128;
skipInterval = int.MaxValue; // switch off skipTo optimization
}
else
{
// we have a format version number
format = firstInt;
// check that it is a format we can understand
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);
}
size = input.ReadInt64(); // read the size
indexInterval = input.ReadInt32();
skipInterval = input.ReadInt32();
maxSkipLevels = input.ReadInt32();
if (Debugging.AssertsEnabled)
{
Debugging.Assert(indexInterval > 0, "indexInterval={0} is negative; must be > 0", indexInterval);
Debugging.Assert(skipInterval > 0, "skipInterval={0} is negative; must be > 0", skipInterval);
}
}
}
public override long Get(int index)
{
int blockOffset = index / valuesPerBlock;
long skip = ((long)blockOffset) << 3;
try
{
@in.Seek(startPointer + skip);
long block = @in.ReadInt64();
int offsetInBlock = index % valuesPerBlock;
return((block.TripleShift(offsetInBlock * m_bitsPerValue)) & mask);
}
catch (Exception e) when(e.IsIOException())
{
throw IllegalStateException.Create("failed", e);
}
}
public override long Get(int index)
{
int blockOffset = index / valuesPerBlock;
long skip = ((long)blockOffset) << 3;
try
{
@in.Seek(startPointer + skip);
long block = @in.ReadInt64();
int offsetInBlock = index % valuesPerBlock;
return(((long)((ulong)block >> (offsetInBlock * m_bitsPerValue))) & mask);
}
catch (IOException e)
{
throw new InvalidOperationException("failed", e);
}
}
private SortedDocValues LoadBytesVarSorted(/*FieldInfo field, // LUCENENET: Never read */ IndexInput data, IndexInput index)
{
CodecUtil.CheckHeader(data, Lucene40DocValuesFormat.BYTES_VAR_SORTED_CODEC_NAME_DAT, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_START, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_CURRENT);
CodecUtil.CheckHeader(index, Lucene40DocValuesFormat.BYTES_VAR_SORTED_CODEC_NAME_IDX, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_START, Lucene40DocValuesFormat.BYTES_VAR_SORTED_VERSION_CURRENT);
long maxAddress = index.ReadInt64();
PagedBytes bytes = new PagedBytes(16);
bytes.Copy(data, maxAddress);
PagedBytes.Reader bytesReader = bytes.Freeze(true);
PackedInt32s.Reader addressReader = PackedInt32s.GetReader(index);
PackedInt32s.Reader ordsReader = PackedInt32s.GetReader(index);
int valueCount = addressReader.Count - 1;
ramBytesUsed.AddAndGet(bytes.RamBytesUsed() + addressReader.RamBytesUsed() + ordsReader.RamBytesUsed());
return(CorrectBuggyOrds(new SortedDocValuesAnonymousClass2(bytesReader, addressReader, ordsReader, valueCount)));
}
private NumericDocValues LoadDoubleField(/*FieldInfo field, // LUCENENET: Never read */ IndexInput input)
{
CodecUtil.CheckHeader(input, Lucene40DocValuesFormat.FLOATS_CODEC_NAME, Lucene40DocValuesFormat.FLOATS_VERSION_START, Lucene40DocValuesFormat.FLOATS_VERSION_CURRENT);
int valueSize = input.ReadInt32();
if (valueSize != 8)
{
throw new CorruptIndexException("invalid valueSize: " + valueSize);
}
int maxDoc = state.SegmentInfo.DocCount;
long[] values = new long[maxDoc];
for (int i = 0; i < values.Length; i++)
{
values[i] = input.ReadInt64();
}
ramBytesUsed.AddAndGet(RamUsageEstimator.SizeOf(values));
return(new NumericDocValuesAnonymousClass8(values));
}
private BinaryDocValues LoadBytesVarDeref(FieldInfo field)
{
string dataName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name + "_" + Convert.ToString(field.Number, CultureInfo.InvariantCulture), segmentSuffix, "dat");
string indexName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name + "_" + Convert.ToString(field.Number, CultureInfo.InvariantCulture), segmentSuffix, "idx");
IndexInput data = null;
IndexInput index = null;
bool success = false;
try
{
data = dir.OpenInput(dataName, state.Context);
CodecUtil.CheckHeader(data, Lucene40DocValuesFormat.BYTES_VAR_DEREF_CODEC_NAME_DAT, Lucene40DocValuesFormat.BYTES_VAR_DEREF_VERSION_START, Lucene40DocValuesFormat.BYTES_VAR_DEREF_VERSION_CURRENT);
index = dir.OpenInput(indexName, state.Context);
CodecUtil.CheckHeader(index, Lucene40DocValuesFormat.BYTES_VAR_DEREF_CODEC_NAME_IDX, Lucene40DocValuesFormat.BYTES_VAR_DEREF_VERSION_START, Lucene40DocValuesFormat.BYTES_VAR_DEREF_VERSION_CURRENT);
long totalBytes = index.ReadInt64();
PagedBytes bytes = new PagedBytes(16);
bytes.Copy(data, totalBytes);
PagedBytes.Reader bytesReader = bytes.Freeze(true);
PackedInt32s.Reader reader = PackedInt32s.GetReader(index);
CodecUtil.CheckEOF(data);
CodecUtil.CheckEOF(index);
ramBytesUsed.AddAndGet(bytes.RamBytesUsed() + reader.RamBytesUsed());
success = true;
return(new BinaryDocValuesAnonymousClass4(bytesReader, reader));
}
finally
{
if (success)
{
IOUtils.Dispose(data, index);
}
else
{
IOUtils.DisposeWhileHandlingException(data, index);
}
}
}
public override FieldsProducer FieldsProducer(SegmentReadState state)
{
string seedFileName = IndexFileNames.SegmentFileName(state.SegmentInfo.Name, state.SegmentSuffix, SEED_EXT);
IndexInput @in = state.Directory.OpenInput(seedFileName, state.Context);
long seed = @in.ReadInt64();
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading from seg=" + state.SegmentInfo.Name + " formatID=" + state.SegmentSuffix + " seed=" + seed);
}
@in.Dispose();
Random random = new J2N.Randomizer(seed);
int readBufferSize = TestUtil.NextInt32(random, 1, 4096);
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: readBufferSize=" + readBufferSize);
}
PostingsReaderBase postingsReader;
if (random.NextBoolean())
{
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading Sep postings");
}
postingsReader = new SepPostingsReader(state.Directory, state.FieldInfos, state.SegmentInfo,
state.Context, new MockInt32StreamFactory(random), state.SegmentSuffix);
}
else
{
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading Standard postings");
}
postingsReader = new Lucene41PostingsReader(state.Directory, state.FieldInfos, state.SegmentInfo, state.Context, state.SegmentSuffix);
}
if (random.NextBoolean())
{
int totTFCutoff = TestUtil.NextInt32(random, 1, 20);
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading pulsing postings with totTFCutoff=" + totTFCutoff);
}
postingsReader = new PulsingPostingsReader(state, postingsReader);
}
FieldsProducer fields;
int t1 = random.Next(4);
if (t1 == 0)
{
bool success = false;
try
{
fields = new FSTTermsReader(state, postingsReader);
success = true;
}
finally
{
if (!success)
{
postingsReader.Dispose();
}
}
}
else if (t1 == 1)
{
bool success = false;
try
{
fields = new FSTOrdTermsReader(state, postingsReader);
success = true;
}
finally
{
if (!success)
{
postingsReader.Dispose();
}
}
}
else if (t1 == 2)
{
// Use BlockTree terms dict
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading BlockTree terms dict");
}
bool success = false;
try
{
fields = new BlockTreeTermsReader(state.Directory,
state.FieldInfos,
state.SegmentInfo,
postingsReader,
state.Context,
state.SegmentSuffix,
state.TermsIndexDivisor);
success = true;
}
finally
{
if (!success)
{
postingsReader.Dispose();
}
}
}
else
{
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: reading Block terms dict");
}
TermsIndexReaderBase indexReader;
bool success = false;
try
{
bool doFixedGap = random.NextBoolean();
// randomness diverges from writer, here:
if (state.TermsIndexDivisor != -1)
{
state.TermsIndexDivisor = TestUtil.NextInt32(random, 1, 10);
}
if (doFixedGap)
{
// if termsIndexDivisor is set to -1, we should not touch it. It means a
// test explicitly instructed not to load the terms index.
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: fixed-gap terms index (divisor=" + state.TermsIndexDivisor + ")");
}
indexReader = new FixedGapTermsIndexReader(state.Directory,
state.FieldInfos,
state.SegmentInfo.Name,
state.TermsIndexDivisor,
BytesRef.UTF8SortedAsUnicodeComparer,
state.SegmentSuffix, state.Context);
}
else
{
int n2 = random.Next(3);
if (n2 == 1)
{
random.Next();
}
else if (n2 == 2)
{
random.NextInt64();
}
if (LuceneTestCase.Verbose)
{
Console.WriteLine("MockRandomCodec: variable-gap terms index (divisor=" + state.TermsIndexDivisor + ")");
}
indexReader = new VariableGapTermsIndexReader(state.Directory,
state.FieldInfos,
state.SegmentInfo.Name,
state.TermsIndexDivisor,
state.SegmentSuffix, state.Context);
}
success = true;
}
finally
{
if (!success)
{
postingsReader.Dispose();
}
}
success = false;
try
{
fields = new BlockTermsReader(indexReader,
state.Directory,
state.FieldInfos,
state.SegmentInfo,
postingsReader,
state.Context,
state.SegmentSuffix);
success = true;
}
finally
{
if (!success)
{
try
{
postingsReader.Dispose();
}
finally
{
indexReader.Dispose();
}
}
}
}
return(fields);
}
private void ReadFields(IndexInput meta, FieldInfos infos)
{
int fieldNumber = meta.ReadVInt32();
while (fieldNumber != -1)
{
int fieldType = meta.ReadByte();
if (fieldType == NUMBER)
{
var entry = new NumericEntry {
offset = meta.ReadInt64(), missingOffset = meta.ReadInt64()
};
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
entry.format = meta.ReadByte();
switch (entry.format)
{
case DELTA_COMPRESSED:
case TABLE_COMPRESSED:
case GCD_COMPRESSED:
case UNCOMPRESSED:
break;
default:
throw new CorruptIndexException("Unknown format: " + entry.format + ", input=" + meta);
}
if (entry.format != UNCOMPRESSED)
{
entry.packedIntsVersion = meta.ReadVInt32();
}
numerics[fieldNumber] = entry;
}
else if (fieldType == BYTES)
{
var entry = new BinaryEntry
{
offset = meta.ReadInt64(),
numBytes = meta.ReadInt64(),
missingOffset = meta.ReadInt64()
};
if (entry.missingOffset != -1)
{
entry.missingBytes = meta.ReadInt64();
}
else
{
entry.missingBytes = 0;
}
entry.minLength = meta.ReadVInt32();
entry.maxLength = meta.ReadVInt32();
if (entry.minLength != entry.maxLength)
{
entry.packedIntsVersion = meta.ReadVInt32();
entry.blockSize = meta.ReadVInt32();
}
binaries[fieldNumber] = entry;
}
else if (fieldType == FST)
{
var entry = new FSTEntry {
offset = meta.ReadInt64(), numOrds = meta.ReadVInt64()
};
fsts[fieldNumber] = entry;
}
else
{
throw new CorruptIndexException("invalid entry type: " + fieldType + ", input=" + meta);
}
fieldNumber = meta.ReadVInt32();
}
}
/// <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.ReadInt32();
long delGen = input.ReadInt64();
int docStoreOffset = input.ReadInt32();
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, CultureInfo.InvariantCulture);
attributes[Lucene3xSegmentInfoFormat.DS_NAME_KEY] = docStoreSegment;
attributes[Lucene3xSegmentInfoFormat.DS_COMPOUND_KEY] = Convert.ToString(docStoreIsCompoundFile, CultureInfo.InvariantCulture);
}
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.ReadInt32();
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.ReadInt64();
}
}
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
int delCount = input.ReadInt32();
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, CultureInfo.InvariantCulture);
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, CultureInfo.InvariantCulture);
}
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, Collections.UnmodifiableMap(attributes));
info.SetFiles(files);
SegmentCommitInfo infoPerCommit = new SegmentCommitInfo(info, delCount, delGen, -1);
return(infoPerCommit);
}
/// <summary>
/// Returns (but does not validate) the checksum previously written by <see cref="CheckFooter(ChecksumIndexInput)"/>. </summary>
/// <returns> actual checksum value </returns>
/// <exception cref="IOException"> If the footer is invalid. </exception>
public static long RetrieveChecksum(IndexInput @in)
{
@in.Seek(@in.Length - FooterLength());
ValidateFooter(@in);
return(@in.ReadInt64());
}
public override long Get(int index)
{
long majorBitPos = (long)index * m_bitsPerValue;
long elementPos = (long)((ulong)majorBitPos >> 3);
try
{
@in.Seek(startPointer + elementPos);
int bitPos = (int)(majorBitPos & 7);
// round up bits to a multiple of 8 to find total bytes needed to read
int roundedBits = ((bitPos + m_bitsPerValue + 7) & ~7);
// the number of extra bits read at the end to shift out
int shiftRightBits = roundedBits - bitPos - m_bitsPerValue;
long rawValue;
switch ((int)((uint)roundedBits >> 3))
{
case 1:
rawValue = @in.ReadByte();
break;
case 2:
rawValue = @in.ReadInt16();
break;
case 3:
rawValue = ((long)@in.ReadInt16() << 8) | (@in.ReadByte() & 0xFFL);
break;
case 4:
rawValue = @in.ReadInt32();
break;
case 5:
rawValue = ((long)@in.ReadInt32() << 8) | (@in.ReadByte() & 0xFFL);
break;
case 6:
rawValue = ((long)@in.ReadInt32() << 16) | (@in.ReadInt16() & 0xFFFFL);
break;
case 7:
rawValue = ((long)@in.ReadInt32() << 24) | ((@in.ReadInt16() & 0xFFFFL) << 8) | (@in.ReadByte() & 0xFFL);
break;
case 8:
rawValue = @in.ReadInt64();
break;
case 9:
// We must be very careful not to shift out relevant bits. So we account for right shift
// we would normally do on return here, and reset it.
rawValue = (@in.ReadInt64() << (8 - shiftRightBits)) | (((uint)(@in.ReadByte() & 0xFFL) >> shiftRightBits));
shiftRightBits = 0;
break;
default:
throw new InvalidOperationException("bitsPerValue too large: " + m_bitsPerValue);
}
return(((long)((ulong)rawValue >> shiftRightBits)) & valueMask);
}
catch (IOException ioe)
{
throw new InvalidOperationException("failed", ioe);
}
}
private void ReadFields(IndexInput meta, FieldInfos infos)
{
int fieldNumber = meta.ReadVInt32();
while (fieldNumber != -1)
{
// check should be: infos.fieldInfo(fieldNumber) != null, which incorporates negative check
// but docvalues updates are currently buggy here (loading extra stuff, etc): LUCENE-5616
if (fieldNumber < 0)
{
// trickier to validate more: because we re-use for norms, because we use multiple entries
// for "composite" types like sortedset, etc.
throw new CorruptIndexException("Invalid field number: " + fieldNumber + ", input=" + meta);
}
int fieldType = meta.ReadByte();
if (fieldType == NUMBER)
{
var entry = new NumericEntry();
entry.Offset = meta.ReadInt64();
entry.Format = (sbyte)meta.ReadByte();
switch (entry.Format)
{
case DELTA_COMPRESSED:
case TABLE_COMPRESSED:
case GCD_COMPRESSED:
case UNCOMPRESSED:
break;
default:
throw new CorruptIndexException("Unknown format: " + entry.Format + ", input=" + meta);
}
if (entry.Format != UNCOMPRESSED)
{
entry.PackedInt32sVersion = meta.ReadVInt32();
}
numerics[fieldNumber] = entry;
}
else if (fieldType == BYTES)
{
BinaryEntry entry = new BinaryEntry();
entry.Offset = meta.ReadInt64();
entry.NumBytes = meta.ReadInt64();
entry.MinLength = meta.ReadVInt32();
entry.MaxLength = meta.ReadVInt32();
if (entry.MinLength != entry.MaxLength)
{
entry.PackedInt32sVersion = meta.ReadVInt32();
entry.BlockSize = meta.ReadVInt32();
}
binaries[fieldNumber] = entry;
}
else if (fieldType == FST)
{
FSTEntry entry = new FSTEntry();
entry.Offset = meta.ReadInt64();
entry.NumOrds = meta.ReadVInt64();
fsts[fieldNumber] = entry;
}
else
{
throw new CorruptIndexException("invalid entry type: " + fieldType + ", input=" + meta);
}
fieldNumber = meta.ReadVInt32();
}
}