| using Lucene.Net.Documents; |
| using System; |
| using System.Runtime.CompilerServices; |
| |
| namespace Lucene.Net.Index |
| { |
| /* |
| * 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 BinaryDocValuesField = BinaryDocValuesField; |
| using BinaryDocValuesUpdate = Lucene.Net.Index.DocValuesUpdate.BinaryDocValuesUpdate; |
| using BytesRef = Lucene.Net.Util.BytesRef; |
| using DocIdSetIterator = Lucene.Net.Search.DocIdSetIterator; |
| using FixedBitSet = Lucene.Net.Util.FixedBitSet; |
| using InPlaceMergeSorter = Lucene.Net.Util.InPlaceMergeSorter; |
| using PackedInt32s = Lucene.Net.Util.Packed.PackedInt32s; |
| using PagedGrowableWriter = Lucene.Net.Util.Packed.PagedGrowableWriter; |
| using PagedMutable = Lucene.Net.Util.Packed.PagedMutable; |
| |
| /// <summary> |
| /// A <see cref="DocValuesFieldUpdates"/> which holds updates of documents, of a single |
| /// <see cref="BinaryDocValuesField"/>. |
| /// <para/> |
| /// @lucene.experimental |
| /// </summary> |
| internal class BinaryDocValuesFieldUpdates : DocValuesFieldUpdates |
| { |
| new internal sealed class Iterator : DocValuesFieldUpdates.Iterator |
| { |
| private readonly PagedGrowableWriter offsets; |
| private readonly int size; |
| private readonly PagedGrowableWriter lengths; |
| private readonly PagedMutable docs; |
| private readonly FixedBitSet docsWithField; |
| private long idx = 0; // long so we don't overflow if size == Integer.MAX_VALUE |
| private int doc = -1; |
| private readonly BytesRef value; |
| private int offset, length; |
| |
| internal Iterator(int size, PagedGrowableWriter offsets, PagedGrowableWriter lengths, PagedMutable docs, BytesRef values, FixedBitSet docsWithField) |
| { |
| this.offsets = offsets; |
| this.size = size; |
| this.lengths = lengths; |
| this.docs = docs; |
| this.docsWithField = docsWithField; |
| value = (BytesRef)values.Clone(); |
| } |
| |
| public override object Value |
| { |
| get |
| { |
| if (offset == -1) |
| { |
| return null; |
| } |
| else |
| { |
| value.Offset = offset; |
| value.Length = length; |
| return value; |
| } |
| } |
| } |
| |
| public override int NextDoc() |
| { |
| if (idx >= size) |
| { |
| offset = -1; |
| return doc = DocIdSetIterator.NO_MORE_DOCS; |
| } |
| doc = (int)docs.Get(idx); |
| ++idx; |
| while (idx < size && docs.Get(idx) == doc) |
| { |
| ++idx; |
| } |
| // idx points to the "next" element |
| long prevIdx = idx - 1; |
| if (!docsWithField.Get((int)prevIdx)) |
| { |
| offset = -1; |
| } |
| else |
| { |
| // cannot change 'value' here because nextDoc is called before the |
| // value is used, and it's a waste to clone the BytesRef when we |
| // obtain the value |
| offset = (int)offsets.Get(prevIdx); |
| length = (int)lengths.Get(prevIdx); |
| } |
| return doc; |
| } |
| |
| public override int Doc => doc; |
| |
| public override void Reset() |
| { |
| doc = -1; |
| offset = -1; |
| idx = 0; |
| } |
| } |
| |
| private FixedBitSet docsWithField; |
| private PagedMutable docs; |
| private PagedGrowableWriter offsets, lengths; |
| private readonly BytesRef values; // LUCENENET: marked readonly |
| private int size; |
| |
| public BinaryDocValuesFieldUpdates(string field, int maxDoc) |
| : base(field, DocValuesFieldUpdatesType.BINARY) |
| { |
| docsWithField = new FixedBitSet(64); |
| docs = new PagedMutable(1, 1024, PackedInt32s.BitsRequired(maxDoc - 1), PackedInt32s.COMPACT); |
| offsets = new PagedGrowableWriter(1, 1024, 1, PackedInt32s.FAST); |
| lengths = new PagedGrowableWriter(1, 1024, 1, PackedInt32s.FAST); |
| values = new BytesRef(16); // start small |
| size = 0; |
| } |
| |
| public override void Add(int doc, object value) |
| { |
| // TODO: if the Sorter interface changes to take long indexes, we can remove that limitation |
| if (size == int.MaxValue) |
| { |
| throw new InvalidOperationException("cannot support more than System.Int32.MaxValue doc/value entries"); |
| } |
| |
| BytesRef val = (BytesRef)value; |
| if (val == null) |
| { |
| val = BinaryDocValuesUpdate.MISSING; |
| } |
| |
| // grow the structures to have room for more elements |
| if (docs.Count == size) |
| { |
| docs = docs.Grow(size + 1); |
| offsets = offsets.Grow(size + 1); |
| lengths = lengths.Grow(size + 1); |
| docsWithField = FixedBitSet.EnsureCapacity(docsWithField, (int)docs.Count); |
| } |
| |
| if (val != BinaryDocValuesUpdate.MISSING) |
| { |
| // only mark the document as having a value in that field if the value wasn't set to null (MISSING) |
| docsWithField.Set(size); |
| } |
| |
| docs.Set(size, doc); |
| offsets.Set(size, values.Length); |
| lengths.Set(size, val.Length); |
| values.Append(val); |
| ++size; |
| } |
| |
| public override DocValuesFieldUpdates.Iterator GetIterator() |
| { |
| PagedMutable docs = this.docs; |
| PagedGrowableWriter offsets = this.offsets; |
| PagedGrowableWriter lengths = this.lengths; |
| BytesRef values = this.values; |
| FixedBitSet docsWithField = this.docsWithField; |
| new InPlaceMergeSorterAnonymousClass(docs, offsets, lengths, docsWithField).Sort(0, size); |
| |
| return new Iterator(size, offsets, lengths, docs, values, docsWithField); |
| } |
| |
| private class InPlaceMergeSorterAnonymousClass : InPlaceMergeSorter |
| { |
| private readonly PagedMutable docs; |
| private readonly PagedGrowableWriter offsets; |
| private readonly PagedGrowableWriter lengths; |
| private readonly FixedBitSet docsWithField; |
| |
| public InPlaceMergeSorterAnonymousClass(PagedMutable docs, PagedGrowableWriter offsets, PagedGrowableWriter lengths, FixedBitSet docsWithField) |
| { |
| this.docs = docs; |
| this.offsets = offsets; |
| this.lengths = lengths; |
| this.docsWithField = docsWithField; |
| } |
| |
| protected override void Swap(int i, int j) |
| { |
| long tmpDoc = docs.Get(j); |
| docs.Set(j, docs.Get(i)); |
| docs.Set(i, tmpDoc); |
| |
| long tmpOffset = offsets.Get(j); |
| offsets.Set(j, offsets.Get(i)); |
| offsets.Set(i, tmpOffset); |
| |
| long tmpLength = lengths.Get(j); |
| lengths.Set(j, lengths.Get(i)); |
| lengths.Set(i, tmpLength); |
| |
| bool tmpBool = docsWithField.Get(j); |
| if (docsWithField.Get(i)) |
| { |
| docsWithField.Set(j); |
| } |
| else |
| { |
| docsWithField.Clear(j); |
| } |
| if (tmpBool) |
| { |
| docsWithField.Set(i); |
| } |
| else |
| { |
| docsWithField.Clear(i); |
| } |
| } |
| |
| protected override int Compare(int i, int j) |
| { |
| int x = (int)docs.Get(i); |
| int y = (int)docs.Get(j); |
| return (x < y) ? -1 : ((x == y) ? 0 : 1); |
| } |
| } |
| |
| [MethodImpl(MethodImplOptions.NoInlining)] |
| public override void Merge(DocValuesFieldUpdates other) |
| { |
| BinaryDocValuesFieldUpdates otherUpdates = (BinaryDocValuesFieldUpdates)other; |
| int newSize = size + otherUpdates.size; |
| if (newSize > int.MaxValue) |
| { |
| throw new InvalidOperationException("cannot support more than System.Int32.MaxValue doc/value entries; size=" + size + " other.size=" + otherUpdates.size); |
| } |
| docs = docs.Grow(newSize); |
| offsets = offsets.Grow(newSize); |
| lengths = lengths.Grow(newSize); |
| docsWithField = FixedBitSet.EnsureCapacity(docsWithField, (int)docs.Count); |
| for (int i = 0; i < otherUpdates.size; i++) |
| { |
| int doc = (int)otherUpdates.docs.Get(i); |
| if (otherUpdates.docsWithField.Get(i)) |
| { |
| docsWithField.Set(size); |
| } |
| docs.Set(size, doc); |
| offsets.Set(size, values.Length + otherUpdates.offsets.Get(i)); // correct relative offset |
| lengths.Set(size, otherUpdates.lengths.Get(i)); |
| ++size; |
| } |
| values.Append(otherUpdates.values); |
| } |
| |
| public override bool Any() |
| { |
| return size > 0; |
| } |
| } |
| } |