| /* |
| * 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. |
| */ |
| package org.apache.lucene.backward_codecs.lucene70; |
| |
| import org.apache.lucene.backward_codecs.lucene50.Lucene50CompoundFormat; |
| import org.apache.lucene.backward_codecs.lucene50.Lucene50LiveDocsFormat; |
| import org.apache.lucene.backward_codecs.lucene50.Lucene50StoredFieldsFormat; |
| import org.apache.lucene.backward_codecs.lucene50.Lucene50StoredFieldsFormat.Mode; |
| import org.apache.lucene.backward_codecs.lucene50.Lucene50TermVectorsFormat; |
| import org.apache.lucene.backward_codecs.lucene60.Lucene60FieldInfosFormat; |
| import org.apache.lucene.backward_codecs.lucene60.Lucene60PointsFormat; |
| import org.apache.lucene.codecs.Codec; |
| import org.apache.lucene.codecs.CompoundFormat; |
| import org.apache.lucene.codecs.DocValuesFormat; |
| import org.apache.lucene.codecs.FieldInfosFormat; |
| import org.apache.lucene.codecs.FilterCodec; |
| import org.apache.lucene.codecs.LiveDocsFormat; |
| import org.apache.lucene.codecs.NormsFormat; |
| import org.apache.lucene.codecs.PointsFormat; |
| import org.apache.lucene.codecs.PostingsFormat; |
| import org.apache.lucene.codecs.SegmentInfoFormat; |
| import org.apache.lucene.codecs.StoredFieldsFormat; |
| import org.apache.lucene.codecs.TermVectorsFormat; |
| import org.apache.lucene.codecs.VectorFormat; |
| import org.apache.lucene.codecs.perfield.PerFieldDocValuesFormat; |
| import org.apache.lucene.codecs.perfield.PerFieldPostingsFormat; |
| |
| /** |
| * Implements the Lucene 7.0 index format, with configurable per-field postings and docvalues |
| * formats. |
| * |
| * <p>If you want to reuse functionality of this codec in another codec, extend {@link FilterCodec}. |
| * |
| * @see org.apache.lucene.backward_codecs.lucene70 package documentation for file format details. |
| * @lucene.experimental |
| */ |
| public class Lucene70Codec extends Codec { |
| private final TermVectorsFormat vectorsFormat = new Lucene50TermVectorsFormat(); |
| private final FieldInfosFormat fieldInfosFormat = new Lucene60FieldInfosFormat(); |
| private final SegmentInfoFormat segmentInfosFormat = new Lucene70SegmentInfoFormat(); |
| private final LiveDocsFormat liveDocsFormat = new Lucene50LiveDocsFormat(); |
| private final CompoundFormat compoundFormat = new Lucene50CompoundFormat(); |
| private final DocValuesFormat defaultDVFormat = DocValuesFormat.forName("Lucene70"); |
| |
| private final PostingsFormat postingsFormat = |
| new PerFieldPostingsFormat() { |
| @Override |
| public PostingsFormat getPostingsFormatForField(String field) { |
| throw new IllegalStateException( |
| "This codec should only be used for reading, not writing"); |
| } |
| }; |
| |
| private final DocValuesFormat docValuesFormat = |
| new PerFieldDocValuesFormat() { |
| @Override |
| public DocValuesFormat getDocValuesFormatForField(String field) { |
| return defaultDVFormat; |
| } |
| }; |
| |
| private final StoredFieldsFormat storedFieldsFormat = |
| new Lucene50StoredFieldsFormat(Mode.BEST_SPEED); |
| |
| /** Instantiates a new codec. */ |
| public Lucene70Codec() { |
| super("Lucene70"); |
| } |
| |
| @Override |
| public StoredFieldsFormat storedFieldsFormat() { |
| return storedFieldsFormat; |
| } |
| |
| @Override |
| public TermVectorsFormat termVectorsFormat() { |
| return vectorsFormat; |
| } |
| |
| @Override |
| public PostingsFormat postingsFormat() { |
| return postingsFormat; |
| } |
| |
| @Override |
| public final FieldInfosFormat fieldInfosFormat() { |
| return fieldInfosFormat; |
| } |
| |
| @Override |
| public SegmentInfoFormat segmentInfoFormat() { |
| return segmentInfosFormat; |
| } |
| |
| @Override |
| public final LiveDocsFormat liveDocsFormat() { |
| return liveDocsFormat; |
| } |
| |
| @Override |
| public CompoundFormat compoundFormat() { |
| return compoundFormat; |
| } |
| |
| @Override |
| public final PointsFormat pointsFormat() { |
| return new Lucene60PointsFormat(); |
| } |
| |
| @Override |
| public VectorFormat vectorFormat() { |
| return VectorFormat.EMPTY; |
| } |
| |
| @Override |
| public final DocValuesFormat docValuesFormat() { |
| return docValuesFormat; |
| } |
| |
| private final NormsFormat normsFormat = new Lucene70NormsFormat(); |
| |
| @Override |
| public NormsFormat normsFormat() { |
| return normsFormat; |
| } |
| } |