| namespace Lucene.Net.Codecs.Memory |
| { |
| /* |
| * 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 Lucene41PostingsBaseFormat = Lucene41.Lucene41PostingsBaseFormat; |
| using PulsingPostingsWriter = Pulsing.PulsingPostingsWriter; |
| using PulsingPostingsReader = Pulsing.PulsingPostingsReader; |
| using SegmentReadState = Index.SegmentReadState; |
| using SegmentWriteState = Index.SegmentWriteState; |
| using IOUtils = Util.IOUtils; |
| |
| /// <summary> |
| /// FST + Pulsing41, test only, since |
| /// FST does no delta encoding here! |
| /// <para/> |
| /// @lucene.experimental |
| /// </summary> |
| [PostingsFormatName("FSTPulsing41")] // LUCENENET specific - using PostingsFormatName attribute to ensure the default name passed from subclasses is the same as this class name |
| public class FSTPulsing41PostingsFormat : PostingsFormat |
| { |
| private readonly PostingsBaseFormat _wrappedPostingsBaseFormat; |
| private readonly int _freqCutoff; |
| |
| public FSTPulsing41PostingsFormat() |
| : this(1) |
| { |
| } |
| |
| public FSTPulsing41PostingsFormat(int freqCutoff) |
| : base() |
| { |
| _wrappedPostingsBaseFormat = new Lucene41PostingsBaseFormat(); |
| _freqCutoff = freqCutoff; |
| } |
| |
| public override FieldsConsumer FieldsConsumer(SegmentWriteState state) |
| { |
| PostingsWriterBase docsWriter = null; |
| PostingsWriterBase pulsingWriter = null; |
| |
| bool success = false; |
| try |
| { |
| docsWriter = _wrappedPostingsBaseFormat.PostingsWriterBase(state); |
| pulsingWriter = new PulsingPostingsWriter(state, _freqCutoff, docsWriter); |
| FieldsConsumer ret = new FSTTermsWriter(state, pulsingWriter); |
| success = true; |
| return ret; |
| } |
| finally |
| { |
| if (!success) |
| { |
| IOUtils.DisposeWhileHandlingException(docsWriter, pulsingWriter); |
| } |
| } |
| } |
| |
| public override FieldsProducer FieldsProducer(SegmentReadState state) |
| { |
| PostingsReaderBase docsReader = null; |
| PostingsReaderBase pulsingReader = null; |
| bool success = false; |
| try |
| { |
| docsReader = _wrappedPostingsBaseFormat.PostingsReaderBase(state); |
| pulsingReader = new PulsingPostingsReader(state, docsReader); |
| FieldsProducer ret = new FSTTermsReader(state, pulsingReader); |
| success = true; |
| return ret; |
| } |
| finally |
| { |
| if (!success) |
| { |
| IOUtils.DisposeWhileHandlingException(docsReader, pulsingReader); |
| } |
| } |
| } |
| } |
| } |