| using System; |
| using System.Collections.Generic; |
| |
| namespace Lucene.Net.Index |
| { |
| using Lucene.Net.Util.Packed; |
| using AppendingDeltaPackedLongBuffer = Lucene.Net.Util.Packed.AppendingDeltaPackedLongBuffer; |
| using Counter = Lucene.Net.Util.Counter; |
| |
| /* |
| * 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 DocValuesConsumer = Lucene.Net.Codecs.DocValuesConsumer; |
| using FixedBitSet = Lucene.Net.Util.FixedBitSet; |
| using PackedInts = Lucene.Net.Util.Packed.PackedInts; |
| using RamUsageEstimator = Lucene.Net.Util.RamUsageEstimator; |
| |
| /// <summary> |
| /// Buffers up pending long per doc, then flushes when |
| /// segment flushes. |
| /// </summary> |
| internal class NumericDocValuesWriter : DocValuesWriter |
| { |
| private const long MISSING = 0L; |
| |
| private AppendingDeltaPackedLongBuffer Pending; |
| private readonly Counter IwBytesUsed; |
| private long BytesUsed; |
| private FixedBitSet DocsWithField; |
| private readonly FieldInfo FieldInfo; |
| |
| public NumericDocValuesWriter(FieldInfo fieldInfo, Counter iwBytesUsed, bool trackDocsWithField) |
| { |
| Pending = new AppendingDeltaPackedLongBuffer(PackedInts.COMPACT); |
| DocsWithField = trackDocsWithField ? new FixedBitSet(64) : null; |
| BytesUsed = Pending.RamBytesUsed() + DocsWithFieldBytesUsed(); |
| this.FieldInfo = fieldInfo; |
| this.IwBytesUsed = iwBytesUsed; |
| iwBytesUsed.AddAndGet(BytesUsed); |
| } |
| |
| public virtual void AddValue(int docID, long value) |
| { |
| if (docID < Pending.Size()) |
| { |
| throw new System.ArgumentException("DocValuesField \"" + FieldInfo.Name + "\" appears more than once in this document (only one value is allowed per field)"); |
| } |
| |
| // Fill in any holes: |
| for (int i = (int)Pending.Size(); i < docID; ++i) |
| { |
| Pending.Add(MISSING); |
| } |
| |
| Pending.Add(value); |
| if (DocsWithField != null) |
| { |
| DocsWithField = FixedBitSet.EnsureCapacity(DocsWithField, docID); |
| DocsWithField.Set(docID); |
| } |
| |
| UpdateBytesUsed(); |
| } |
| |
| private long DocsWithFieldBytesUsed() |
| { |
| // size of the long[] + some overhead |
| return DocsWithField == null ? 0 : RamUsageEstimator.SizeOf(DocsWithField.Bits) + 64; |
| } |
| |
| private void UpdateBytesUsed() |
| { |
| long newBytesUsed = Pending.RamBytesUsed() + DocsWithFieldBytesUsed(); |
| IwBytesUsed.AddAndGet(newBytesUsed - BytesUsed); |
| BytesUsed = newBytesUsed; |
| } |
| |
| internal override void Finish(int maxDoc) |
| { |
| } |
| |
| internal override void Flush(SegmentWriteState state, DocValuesConsumer dvConsumer) |
| { |
| int maxDoc = state.SegmentInfo.DocCount; |
| |
| dvConsumer.AddNumericField(FieldInfo, GetNumericIterator(maxDoc)); |
| } |
| |
| private IEnumerable<long?> GetNumericIterator(int maxDoc) |
| { |
| // .NET Port: using yield return instead of custom iterator type. Much less code. |
| AbstractAppendingLongBuffer.Iterator iter = Pending.GetIterator(); |
| int size = (int)Pending.Size(); |
| int upto = 0; |
| |
| while (upto < maxDoc) |
| { |
| long? value; |
| if (upto < size) |
| { |
| var v = iter.Next(); |
| if (DocsWithField == null || DocsWithField.Get(upto)) |
| { |
| value = v; |
| } |
| else |
| { |
| value = null; |
| } |
| } |
| else |
| { |
| value = DocsWithField != null ? (long?) null : MISSING; |
| } |
| upto++; |
| // TODO: make reusable Number |
| yield return value; |
| } |
| } |
| |
| /* |
| private class IterableAnonymousInnerClassHelper : IEnumerable<Number> |
| { |
| private readonly NumericDocValuesWriter OuterInstance; |
| |
| private int MaxDoc; |
| |
| public IterableAnonymousInnerClassHelper(NumericDocValuesWriter outerInstance, int maxDoc) |
| { |
| this.OuterInstance = outerInstance; |
| this.MaxDoc = maxDoc; |
| } |
| |
| public virtual IEnumerator<Number> GetEnumerator() |
| { |
| return new NumericIterator(OuterInstance, MaxDoc); |
| } |
| }*/ |
| |
| internal override void Abort() |
| { |
| } |
| |
| /* |
| // iterates over the values we have in ram |
| private class NumericIterator : IEnumerator<Number> |
| { |
| internal bool InstanceFieldsInitialized = false; |
| |
| internal virtual void InitializeInstanceFields() |
| { |
| Iter = OuterInstance.Pending.Iterator(); |
| Size = (int)OuterInstance.Pending.Size(); |
| } |
| |
| private readonly NumericDocValuesWriter OuterInstance; |
| |
| internal AppendingDeltaPackedLongBuffer.Iterator Iter; |
| internal int Size; |
| internal readonly int MaxDoc; |
| internal int Upto; |
| |
| internal NumericIterator(NumericDocValuesWriter outerInstance, int maxDoc) |
| { |
| this.OuterInstance = outerInstance; |
| |
| if (!InstanceFieldsInitialized) |
| { |
| InitializeInstanceFields(); |
| InstanceFieldsInitialized = true; |
| } |
| this.MaxDoc = maxDoc; |
| } |
| |
| public override bool HasNext() |
| { |
| return Upto < MaxDoc; |
| } |
| |
| public override Number Next() |
| { |
| if (!HasNext()) |
| { |
| throw new NoSuchElementException(); |
| } |
| long? value; |
| if (Upto < Size) |
| { |
| long v = Iter.next(); |
| if (OuterInstance.DocsWithField == null || OuterInstance.DocsWithField.Get(Upto)) |
| { |
| value = v; |
| } |
| else |
| { |
| value = null; |
| } |
| } |
| else |
| { |
| value = OuterInstance.DocsWithField != null ? null : MISSING; |
| } |
| Upto++; |
| return value; |
| } |
| |
| public override void Remove() |
| { |
| throw new System.NotSupportedException(); |
| } |
| }*/ |
| } |
| } |