| using Lucene.Net.Codecs.Lucene41; |
| using Lucene.Net.Codecs.Pulsing; |
| using Lucene.Net.Index; |
| using Lucene.Net.Util; |
| |
| namespace Lucene.Net.Codecs.NestedPulsing |
| { |
| /* |
| * 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. |
| */ |
| |
| /// <summary> |
| /// Pulsing(1, Pulsing(2, Lucene41)) |
| /// <para/> |
| /// @lucene.experimental |
| /// </summary> |
| // TODO: if we create PulsingPostingsBaseFormat then we |
| // can simplify this? note: I don't like the *BaseFormat |
| // hierarchy, maybe we can clean that up... |
| [PostingsFormatName("NestedPulsing")] // LUCENENET specific - using PostingsFormatName attribute to ensure the default name passed from subclasses is the same as this class name |
| public sealed class NestedPulsingPostingsFormat : PostingsFormat |
| { |
| public NestedPulsingPostingsFormat() |
| : base() |
| { } |
| |
| public override FieldsConsumer FieldsConsumer(SegmentWriteState state) |
| { |
| PostingsWriterBase docsWriter = null; |
| PostingsWriterBase pulsingWriterInner = null; |
| PostingsWriterBase pulsingWriter = null; |
| |
| // Terms dict |
| bool success = false; |
| try |
| { |
| docsWriter = new Lucene41PostingsWriter(state); |
| |
| pulsingWriterInner = new PulsingPostingsWriter(state, 2, docsWriter); |
| pulsingWriter = new PulsingPostingsWriter(state, 1, pulsingWriterInner); |
| FieldsConsumer ret = new BlockTreeTermsWriter(state, pulsingWriter, |
| BlockTreeTermsWriter.DEFAULT_MIN_BLOCK_SIZE, BlockTreeTermsWriter.DEFAULT_MAX_BLOCK_SIZE); |
| success = true; |
| return ret; |
| } |
| finally |
| { |
| if (!success) |
| { |
| IOUtils.DisposeWhileHandlingException(docsWriter, pulsingWriterInner, pulsingWriter); |
| } |
| } |
| } |
| |
| public override FieldsProducer FieldsProducer(SegmentReadState state) |
| { |
| PostingsReaderBase docsReader = null; |
| PostingsReaderBase pulsingReaderInner = null; |
| PostingsReaderBase pulsingReader = null; |
| bool success = false; |
| try |
| { |
| docsReader = new Lucene41PostingsReader(state.Directory, state.FieldInfos, state.SegmentInfo, state.Context, state.SegmentSuffix); |
| pulsingReaderInner = new PulsingPostingsReader(state, docsReader); |
| pulsingReader = new PulsingPostingsReader(state, pulsingReaderInner); |
| FieldsProducer ret = new BlockTreeTermsReader( |
| state.Directory, state.FieldInfos, state.SegmentInfo, |
| pulsingReader, |
| state.Context, |
| state.SegmentSuffix, |
| state.TermsIndexDivisor); |
| success = true; |
| return ret; |
| } |
| finally |
| { |
| if (!success) |
| { |
| IOUtils.DisposeWhileHandlingException(docsReader, pulsingReaderInner, pulsingReader); |
| } |
| } |
| } |
| } |
| } |