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Lucene45DocValuesProducer.cs
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Lucene45DocValuesProducer.cs
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using J2N.Threading.Atomic;
using Lucene.Net.Index;
using Lucene.Net.Util;
using System;
using System.Collections.Generic;
namespace Lucene.Net.Codecs.Lucene45
{
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using BinaryDocValues = Lucene.Net.Index.BinaryDocValues;
using IBits = Lucene.Net.Util.IBits;
using BlockPackedReader = Lucene.Net.Util.Packed.BlockPackedReader;
using BytesRef = Lucene.Net.Util.BytesRef;
using ChecksumIndexInput = Lucene.Net.Store.ChecksumIndexInput;
using DocsAndPositionsEnum = Lucene.Net.Index.DocsAndPositionsEnum;
using DocsEnum = Lucene.Net.Index.DocsEnum;
using DocValues = Lucene.Net.Index.DocValues;
using DocValuesType = Lucene.Net.Index.DocValuesType;
using FieldInfo = Lucene.Net.Index.FieldInfo;
using FieldInfos = Lucene.Net.Index.FieldInfos;
using IndexFileNames = Lucene.Net.Index.IndexFileNames;
using IndexInput = Lucene.Net.Store.IndexInput;
using IOUtils = Lucene.Net.Util.IOUtils;
using Int64Values = Lucene.Net.Util.Int64Values;
using MonotonicBlockPackedReader = Lucene.Net.Util.Packed.MonotonicBlockPackedReader;
using NumericDocValues = Lucene.Net.Index.NumericDocValues;
using PackedInt32s = Lucene.Net.Util.Packed.PackedInt32s;
using RamUsageEstimator = Lucene.Net.Util.RamUsageEstimator;
using RandomAccessOrds = Lucene.Net.Index.RandomAccessOrds;
using SegmentReadState = Lucene.Net.Index.SegmentReadState;
using SortedDocValues = Lucene.Net.Index.SortedDocValues;
using SortedSetDocValues = Lucene.Net.Index.SortedSetDocValues;
using TermsEnum = Lucene.Net.Index.TermsEnum;
/// <summary>
/// Reader for <see cref="Lucene45DocValuesFormat"/>. </summary>
public class Lucene45DocValuesProducer : DocValuesProducer, IDisposable
{
private readonly IDictionary<int, NumericEntry> numerics;
private readonly IDictionary<int, BinaryEntry> binaries;
private readonly IDictionary<int, SortedSetEntry> sortedSets;
private readonly IDictionary<int, NumericEntry> ords;
private readonly IDictionary<int, NumericEntry> ordIndexes;
private readonly AtomicInt64 ramBytesUsed;
private readonly IndexInput data;
private readonly int maxDoc;
private readonly int version;
// memory-resident structures
private readonly IDictionary<int, MonotonicBlockPackedReader> addressInstances = new Dictionary<int, MonotonicBlockPackedReader>();
private readonly IDictionary<int, MonotonicBlockPackedReader> ordIndexInstances = new Dictionary<int, MonotonicBlockPackedReader>();
/// <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
{
#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, Lucene45DocValuesFormat.VERSION_START, Lucene45DocValuesFormat.VERSION_CURRENT);
if (version != version2)
{
throw new Exception("Format versions mismatch");
}
success = true;
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(this.data);
}
}
ramBytesUsed = new AtomicInt64(RamUsageEstimator.ShallowSizeOfInstance(this.GetType()));
}
private void ReadSortedField(int fieldNumber, IndexInput meta, FieldInfos infos)
{
// sorted = binary + numeric
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sorted entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.BINARY)
{
throw new Exception("sorted entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
BinaryEntry b = ReadBinaryEntry(meta);
binaries[fieldNumber] = b;
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sorted entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.NUMERIC)
{
throw new Exception("sorted entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
NumericEntry n = ReadNumericEntry(meta);
ords[fieldNumber] = n;
}
private void ReadSortedSetFieldWithAddresses(int fieldNumber, IndexInput meta, FieldInfos infos)
{
// sortedset = binary + numeric (addresses) + ordIndex
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.BINARY)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
BinaryEntry b = ReadBinaryEntry(meta);
binaries[fieldNumber] = b;
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.NUMERIC)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
NumericEntry n1 = ReadNumericEntry(meta);
ords[fieldNumber] = n1;
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.NUMERIC)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
NumericEntry n2 = ReadNumericEntry(meta);
ordIndexes[fieldNumber] = n2;
}
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 Exception("Invalid field number: " + fieldNumber + " (resource=" + meta + ")");
}
byte type = meta.ReadByte();
if (type == Lucene45DocValuesFormat.NUMERIC)
{
numerics[fieldNumber] = ReadNumericEntry(meta);
}
else if (type == Lucene45DocValuesFormat.BINARY)
{
BinaryEntry b = ReadBinaryEntry(meta);
binaries[fieldNumber] = b;
}
else if (type == Lucene45DocValuesFormat.SORTED)
{
ReadSortedField(fieldNumber, meta, infos);
}
else if (type == Lucene45DocValuesFormat.SORTED_SET)
{
SortedSetEntry ss = ReadSortedSetEntry(meta);
sortedSets[fieldNumber] = ss;
if (ss.Format == Lucene45DocValuesConsumer.SORTED_SET_WITH_ADDRESSES)
{
ReadSortedSetFieldWithAddresses(fieldNumber, meta, infos);
}
else if (ss.Format == Lucene45DocValuesConsumer.SORTED_SET_SINGLE_VALUED_SORTED)
{
if (meta.ReadVInt32() != fieldNumber)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
if (meta.ReadByte() != Lucene45DocValuesFormat.SORTED)
{
throw new Exception("sortedset entry for field: " + fieldNumber + " is corrupt (resource=" + meta + ")");
}
ReadSortedField(fieldNumber, meta, infos);
}
else
{
throw new Exception();
}
}
else
{
throw new Exception("invalid type: " + type + ", resource=" + meta);
}
fieldNumber = meta.ReadVInt32();
}
}
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;
}
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;
}
internal virtual SortedSetEntry ReadSortedSetEntry(IndexInput meta)
{
SortedSetEntry entry = new SortedSetEntry();
if (version >= Lucene45DocValuesFormat.VERSION_SORTED_SET_SINGLE_VALUE_OPTIMIZED)
{
entry.Format = meta.ReadVInt32();
}
else
{
entry.Format = Lucene45DocValuesConsumer.SORTED_SET_WITH_ADDRESSES;
}
if (entry.Format != Lucene45DocValuesConsumer.SORTED_SET_SINGLE_VALUED_SORTED && entry.Format != Lucene45DocValuesConsumer.SORTED_SET_WITH_ADDRESSES)
{
throw new Exception("Unknown format: " + entry.Format + ", input=" + meta);
}
return entry;
}
public override NumericDocValues GetNumeric(FieldInfo field)
{
NumericEntry entry = numerics[field.Number];
return GetNumeric(entry);
}
public override long RamBytesUsed() => ramBytesUsed;
public override void CheckIntegrity()
{
if (version >= Lucene45DocValuesFormat.VERSION_CHECKSUM)
{
CodecUtil.ChecksumEntireFile(data);
}
}
internal virtual Int64Values GetNumeric(NumericEntry entry)
{
IndexInput data = (IndexInput)this.data.Clone();
data.Seek(entry.Offset);
switch (entry.format)
{
case Lucene45DocValuesConsumer.DELTA_COMPRESSED:
BlockPackedReader reader = new BlockPackedReader(data, entry.PackedInt32sVersion, entry.BlockSize, entry.Count, true);
return reader;
case Lucene45DocValuesConsumer.GCD_COMPRESSED:
long min = entry.minValue;
long mult = entry.gcd;
BlockPackedReader quotientReader = new BlockPackedReader(data, entry.PackedInt32sVersion, entry.BlockSize, entry.Count, true);
return new Int64ValuesAnonymousInnerClassHelper(this, min, mult, quotientReader);
case Lucene45DocValuesConsumer.TABLE_COMPRESSED:
long[] table = entry.table;
int bitsRequired = PackedInt32s.BitsRequired(table.Length - 1);
PackedInt32s.Reader ords = PackedInt32s.GetDirectReaderNoHeader(data, PackedInt32s.Format.PACKED, entry.PackedInt32sVersion, (int)entry.Count, bitsRequired);
return new Int64ValuesAnonymousInnerClassHelper2(this, table, ords);
default:
throw new Exception();
}
}
private class Int64ValuesAnonymousInnerClassHelper : Int64Values
{
private readonly Lucene45DocValuesProducer outerInstance;
private long min;
private long mult;
private BlockPackedReader quotientReader;
public Int64ValuesAnonymousInnerClassHelper(Lucene45DocValuesProducer outerInstance, long min, long mult, BlockPackedReader quotientReader)
{
this.outerInstance = outerInstance;
this.min = min;
this.mult = mult;
this.quotientReader = quotientReader;
}
public override long Get(long id)
{
return min + mult * quotientReader.Get(id);
}
}
private class Int64ValuesAnonymousInnerClassHelper2 : Int64Values
{
private readonly Lucene45DocValuesProducer outerInstance;
private long[] table;
private PackedInt32s.Reader ords;
public Int64ValuesAnonymousInnerClassHelper2(Lucene45DocValuesProducer outerInstance, long[] table, PackedInt32s.Reader ords)
{
this.outerInstance = outerInstance;
this.table = table;
this.ords = ords;
}
public override long Get(long id)
{
return table[(int)ords.Get((int)id)];
}
}
public override BinaryDocValues GetBinary(FieldInfo field)
{
BinaryEntry bytes = binaries[field.Number];
switch (bytes.format)
{
case Lucene45DocValuesConsumer.BINARY_FIXED_UNCOMPRESSED:
return GetFixedBinary(field, bytes);
case Lucene45DocValuesConsumer.BINARY_VARIABLE_UNCOMPRESSED:
return GetVariableBinary(field, bytes);
case Lucene45DocValuesConsumer.BINARY_PREFIX_COMPRESSED:
return GetCompressedBinary(field, bytes);
default:
throw new Exception();
}
}
private BinaryDocValues GetFixedBinary(FieldInfo field, BinaryEntry bytes)
{
IndexInput data = (IndexInput)this.data.Clone();
return new Int64BinaryDocValuesAnonymousInnerClassHelper(this, bytes, data);
}
private class Int64BinaryDocValuesAnonymousInnerClassHelper : Int64BinaryDocValues
{
private readonly Lucene45DocValuesProducer outerInstance;
private Lucene45DocValuesProducer.BinaryEntry bytes;
private IndexInput data;
public Int64BinaryDocValuesAnonymousInnerClassHelper(Lucene45DocValuesProducer outerInstance, Lucene45DocValuesProducer.BinaryEntry bytes, IndexInput data)
{
this.outerInstance = outerInstance;
this.bytes = bytes;
this.data = data;
}
public override void Get(long id, BytesRef result)
{
long address = bytes.offset + id * bytes.maxLength;
try
{
data.Seek(address);
// NOTE: we could have one buffer, but various consumers (e.g. FieldComparerSource)
// assume "they" own the bytes after calling this!
var buffer = new byte[bytes.maxLength];
data.ReadBytes(buffer, 0, buffer.Length);
result.Bytes = buffer;
result.Offset = 0;
result.Length = buffer.Length;
}
catch (System.IO.IOException e)
{
throw new Exception(e.ToString(), e);
}
}
}
/// <summary>
/// Returns an address instance for variable-length binary values.
/// <para/>
/// @lucene.internal
/// </summary>
protected internal virtual MonotonicBlockPackedReader GetAddressInstance(IndexInput data, FieldInfo field, BinaryEntry bytes)
{
MonotonicBlockPackedReader addresses;
lock (addressInstances)
{
MonotonicBlockPackedReader addrInstance;
if (!addressInstances.TryGetValue(field.Number, out addrInstance) || addrInstance == null)
{
data.Seek(bytes.AddressesOffset);
addrInstance = new MonotonicBlockPackedReader(data, bytes.PackedInt32sVersion, bytes.BlockSize, bytes.Count, false);
addressInstances[field.Number] = addrInstance;
ramBytesUsed.AddAndGet(addrInstance.RamBytesUsed() + RamUsageEstimator.NUM_BYTES_INT32);
}
addresses = addrInstance;
}
return addresses;
}
private BinaryDocValues GetVariableBinary(FieldInfo field, BinaryEntry bytes)
{
IndexInput data = (IndexInput)this.data.Clone();
MonotonicBlockPackedReader addresses = GetAddressInstance(data, field, bytes);
return new Int64BinaryDocValuesAnonymousInnerClassHelper2(this, bytes, data, addresses);
}
private class Int64BinaryDocValuesAnonymousInnerClassHelper2 : Int64BinaryDocValues
{
private readonly Lucene45DocValuesProducer outerInstance;
private Lucene45DocValuesProducer.BinaryEntry bytes;
private IndexInput data;
private MonotonicBlockPackedReader addresses;
public Int64BinaryDocValuesAnonymousInnerClassHelper2(Lucene45DocValuesProducer outerInstance, Lucene45DocValuesProducer.BinaryEntry bytes, IndexInput data, MonotonicBlockPackedReader addresses)
{
this.outerInstance = outerInstance;
this.bytes = bytes;
this.data = data;
this.addresses = addresses;
}
public override void Get(long id, BytesRef result)
{
long startAddress = bytes.offset + (id == 0 ? 0 : addresses.Get(id - 1));
long endAddress = bytes.offset + addresses.Get(id);
int length = (int)(endAddress - startAddress);
try
{
data.Seek(startAddress);
// NOTE: we could have one buffer, but various consumers (e.g. FieldComparerSource)
// assume "they" own the bytes after calling this!
var buffer = new byte[length];
data.ReadBytes(buffer, 0, buffer.Length);
result.Bytes = buffer;
result.Offset = 0;
result.Length = length;
}
catch (System.IO.IOException e)
{
throw new Exception(e.ToString(), e);
}
}
}
/// <summary>
/// Returns an address instance for prefix-compressed binary values.
/// <para/>
/// @lucene.internal
/// </summary>
protected internal virtual MonotonicBlockPackedReader GetIntervalInstance(IndexInput data, FieldInfo field, BinaryEntry bytes)
{
MonotonicBlockPackedReader addresses;
long interval = bytes.AddressInterval;
lock (addressInstances)
{
MonotonicBlockPackedReader addrInstance;
if (!addressInstances.TryGetValue(field.Number, out addrInstance))
{
data.Seek(bytes.AddressesOffset);
long size;
if (bytes.Count % interval == 0)
{
size = bytes.Count / interval;
}
else
{
size = 1L + bytes.Count / interval;
}
addrInstance = new MonotonicBlockPackedReader(data, bytes.PackedInt32sVersion, bytes.BlockSize, size, false);
addressInstances[field.Number] = addrInstance;
ramBytesUsed.AddAndGet(addrInstance.RamBytesUsed() + RamUsageEstimator.NUM_BYTES_INT32);
}
addresses = addrInstance;
}
return addresses;
}
private BinaryDocValues GetCompressedBinary(FieldInfo field, BinaryEntry bytes)
{
IndexInput data = (IndexInput)this.data.Clone();
MonotonicBlockPackedReader addresses = GetIntervalInstance(data, field, bytes);
return new CompressedBinaryDocValues(bytes, addresses, data);
}
public override SortedDocValues GetSorted(FieldInfo field)
{
int valueCount = (int)binaries[field.Number].Count;
BinaryDocValues binary = GetBinary(field);
NumericEntry entry = ords[field.Number];
IndexInput data = (IndexInput)this.data.Clone();
data.Seek(entry.Offset);
BlockPackedReader ordinals = new BlockPackedReader(data, entry.PackedInt32sVersion, entry.BlockSize, entry.Count, true);
return new SortedDocValuesAnonymousInnerClassHelper(this, valueCount, binary, ordinals);
}
private class SortedDocValuesAnonymousInnerClassHelper : SortedDocValues
{
private readonly Lucene45DocValuesProducer outerInstance;
private int valueCount;
private BinaryDocValues binary;
private BlockPackedReader ordinals;
public SortedDocValuesAnonymousInnerClassHelper(Lucene45DocValuesProducer outerInstance, int valueCount, BinaryDocValues binary, BlockPackedReader ordinals)
{
this.outerInstance = outerInstance;
this.valueCount = valueCount;
this.binary = binary;
this.ordinals = ordinals;
}
public override int GetOrd(int docID)
{
return (int)ordinals.Get(docID);
}
public override void LookupOrd(int ord, BytesRef result)
{
binary.Get(ord, result);
}
public override int ValueCount
{
get
{
return valueCount;
}
}
public override int LookupTerm(BytesRef key)
{
if (binary is CompressedBinaryDocValues)
{
return (int)((CompressedBinaryDocValues)binary).LookupTerm(key);
}
else
{
return base.LookupTerm(key);
}
}
public override TermsEnum GetTermsEnum()
{
if (binary is CompressedBinaryDocValues)
{
return ((CompressedBinaryDocValues)binary).GetTermsEnum();
}
else
{
return base.GetTermsEnum();
}
}
}
/// <summary>
/// Returns an address instance for sortedset ordinal lists.
/// <para/>
/// @lucene.internal
/// </summary>
protected internal virtual MonotonicBlockPackedReader GetOrdIndexInstance(IndexInput data, FieldInfo field, NumericEntry entry)
{
MonotonicBlockPackedReader ordIndex;
lock (ordIndexInstances)
{
MonotonicBlockPackedReader ordIndexInstance;
if (!ordIndexInstances.TryGetValue(field.Number, out ordIndexInstance))
{
data.Seek(entry.Offset);
ordIndexInstance = new MonotonicBlockPackedReader(data, entry.PackedInt32sVersion, entry.BlockSize, entry.Count, false);
ordIndexInstances[field.Number] = ordIndexInstance;
ramBytesUsed.AddAndGet(ordIndexInstance.RamBytesUsed() + RamUsageEstimator.NUM_BYTES_INT32);
}
ordIndex = ordIndexInstance;
}
return ordIndex;
}
public override SortedSetDocValues GetSortedSet(FieldInfo field)
{
SortedSetEntry ss = sortedSets[field.Number];
if (ss.Format == Lucene45DocValuesConsumer.SORTED_SET_SINGLE_VALUED_SORTED)
{
SortedDocValues values = GetSorted(field);
return DocValues.Singleton(values);
}
else if (ss.Format != Lucene45DocValuesConsumer.SORTED_SET_WITH_ADDRESSES)
{
throw new Exception();
}
IndexInput data = (IndexInput)this.data.Clone();
long valueCount = binaries[field.Number].Count;
// we keep the byte[]s and list of ords on disk, these could be large
Int64BinaryDocValues binary = (Int64BinaryDocValues)GetBinary(field);
Int64Values ordinals = GetNumeric(ords[field.Number]);
// but the addresses to the ord stream are in RAM
MonotonicBlockPackedReader ordIndex = GetOrdIndexInstance(data, field, ordIndexes[field.Number]);
return new RandomAccessOrdsAnonymousInnerClassHelper(this, valueCount, binary, ordinals, ordIndex);
}
private class RandomAccessOrdsAnonymousInnerClassHelper : RandomAccessOrds
{
private readonly Lucene45DocValuesProducer outerInstance;
private long valueCount;
private Lucene45DocValuesProducer.Int64BinaryDocValues binary;
private Int64Values ordinals;
private MonotonicBlockPackedReader ordIndex;
public RandomAccessOrdsAnonymousInnerClassHelper(Lucene45DocValuesProducer outerInstance, long valueCount, Lucene45DocValuesProducer.Int64BinaryDocValues binary, Int64Values ordinals, MonotonicBlockPackedReader ordIndex)
{
this.outerInstance = outerInstance;
this.valueCount = valueCount;
this.binary = binary;
this.ordinals = ordinals;
this.ordIndex = ordIndex;
}
internal long startOffset;
internal long offset;
internal long endOffset;
public override long NextOrd()
{
if (offset == endOffset)
{
return NO_MORE_ORDS;
}
else
{
long ord = ordinals.Get(offset);
offset++;
return ord;
}
}
public override void SetDocument(int docID)
{
startOffset = offset = (docID == 0 ? 0 : ordIndex.Get(docID - 1));
endOffset = ordIndex.Get(docID);
}
public override void LookupOrd(long ord, BytesRef result)
{
binary.Get(ord, result);
}
public override long ValueCount
{
get
{
return valueCount;
}
}
public override long LookupTerm(BytesRef key)
{
if (binary is CompressedBinaryDocValues)
{
return ((CompressedBinaryDocValues)binary).LookupTerm(key);
}
else
{
return base.LookupTerm(key);
}
}
public override TermsEnum GetTermsEnum()
{
if (binary is CompressedBinaryDocValues)
{
return ((CompressedBinaryDocValues)binary).GetTermsEnum();
}
else
{
return base.GetTermsEnum();
}
}
public override long OrdAt(int index)
{
return ordinals.Get(startOffset + index);
}
public override int Cardinality()
{
return (int)(endOffset - startOffset);
}
}
private IBits GetMissingBits(long offset)
{
if (offset == -1)
{
return new Bits.MatchAllBits(maxDoc);
}
else
{
IndexInput @in = (IndexInput)data.Clone();
return new BitsAnonymousInnerClassHelper(this, offset, @in);
}
}
private class BitsAnonymousInnerClassHelper : IBits
{
private readonly Lucene45DocValuesProducer outerInstance;
private long offset;
private IndexInput @in;
public BitsAnonymousInnerClassHelper(Lucene45DocValuesProducer outerInstance, long offset, IndexInput @in)
{
this.outerInstance = outerInstance;
this.offset = offset;
this.@in = @in;
}
public virtual bool Get(int index)
{
try
{
@in.Seek(offset + (index >> 3));
return (@in.ReadByte() & (1 << (index & 7))) != 0;
}
catch (System.IO.IOException e)
{
throw new Exception(e.ToString(), e);
}
}
public virtual int Length
{
get { return outerInstance.maxDoc; }
}
}
public override IBits GetDocsWithField(FieldInfo field)
{
switch (field.DocValuesType)
{
case DocValuesType.SORTED_SET:
return DocValues.DocsWithValue(GetSortedSet(field), maxDoc);
case DocValuesType.SORTED:
return DocValues.DocsWithValue(GetSorted(field), maxDoc);
case DocValuesType.BINARY:
BinaryEntry be = binaries[field.Number];
return GetMissingBits(be.missingOffset);
case DocValuesType.NUMERIC:
NumericEntry ne = numerics[field.Number];
return GetMissingBits(ne.missingOffset);
default:
throw new InvalidOperationException();
}
}
protected override void Dispose(bool disposing)
{
if (disposing)
data.Dispose();
}
/// <summary>
/// Metadata entry for a numeric docvalues field. </summary>
protected internal class NumericEntry
{
internal NumericEntry()
{
}
/// <summary>
/// Offset to the bitset representing docsWithField, or -1 if no documents have missing values. </summary>
internal long missingOffset;
/// <summary>
/// Offset to the actual numeric values. </summary>
public long Offset { get; set; }
internal int format;
/// <summary>
/// Packed <see cref="int"/>s version used to encode these numerics.
/// <para/>
/// NOTE: This was packedIntsVersion (field) in Lucene
/// </summary>
public int PackedInt32sVersion { get; set; }
/// <summary>
/// Count of values written. </summary>
public long Count { get; set; }
/// <summary>
/// Packed <see cref="int"/>s blocksize. </summary>
public int BlockSize { get; set; }
internal long minValue;
internal long gcd;
internal long[] table;
}
/// <summary>
/// Metadata entry for a binary docvalues field. </summary>
protected internal class BinaryEntry
{
internal BinaryEntry()
{
}
/// <summary>
/// Offset to the bitset representing docsWithField, or -1 if no documents have missing values. </summary>
internal long missingOffset;
/// <summary>
/// Offset to the actual binary values. </summary>
internal long offset;
internal int format;
/// <summary>
/// Count of values written. </summary>
public long Count { get; set; }
internal int minLength;
internal int maxLength;
/// <summary>
/// Offset to the addressing data that maps a value to its slice of the <see cref="T:byte[]"/>. </summary>
public long AddressesOffset { get; set; }
/// <summary>
/// Interval of shared prefix chunks (when using prefix-compressed binary). </summary>
public long AddressInterval { get; set; }
/// <summary>
/// Packed ints version used to encode addressing information.
/// <para/>
/// NOTE: This was packedIntsVersion (field) in Lucene.
/// </summary>
public int PackedInt32sVersion { get; set; }
/// <summary>
/// Packed ints blocksize. </summary>
public int BlockSize { get; set; }
}
/// <summary>
/// Metadata entry for a sorted-set docvalues field. </summary>
protected internal class SortedSetEntry
{
internal SortedSetEntry()
{
}
internal int Format { get; set; }
}
// internally we compose complex dv (sorted/sortedset) from other ones
/// <summary>
/// NOTE: This was LongBinaryDocValues in Lucene.
/// </summary>
internal abstract class Int64BinaryDocValues : BinaryDocValues
{
public override sealed void Get(int docID, BytesRef result)
{
Get((long)docID, result);
}