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k-NN plugin support for Elasticsearch version 7.10.0 #271
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| # permissions and limitations under the License. | ||
| # | ||
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| version=1.11.0 | ||
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| /* | ||
| * Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved. | ||
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| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"). | ||
| * You may not use this file except in compliance with the License. | ||
| * A copy of the License is located at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * or in the "license" file accompanying this file. This file 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. | ||
| */ | ||
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| package com.amazon.opendistroforelasticsearch.knn.index.codec.KNN87Codec; | ||
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| import com.amazon.opendistroforelasticsearch.knn.index.codec.KNN80Codec.KNN80CompoundFormat; | ||
| import com.amazon.opendistroforelasticsearch.knn.index.codec.KNN80Codec.KNN80DocValuesFormat; | ||
| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
| 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.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.perfield.PerFieldDocValuesFormat; | ||
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| /** | ||
| * Extends the Codec to support a new file format for KNN index | ||
| * based on the mappings. | ||
| * | ||
| */ | ||
| public final class KNN87Codec extends Codec { | ||
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| private static final Logger logger = LogManager.getLogger(KNN87Codec.class); | ||
| private final DocValuesFormat docValuesFormat; | ||
| private final DocValuesFormat perFieldDocValuesFormat; | ||
| private final CompoundFormat compoundFormat; | ||
| private Codec lucene87Codec; | ||
| private PostingsFormat postingsFormat = null; | ||
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| public static final String KNN_87 = "KNN87Codec"; | ||
| public static final String LUCENE_87 = "Lucene87"; // Lucene Codec to be used | ||
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| public KNN87Codec() { | ||
| super(KNN_87); | ||
| // Note that DocValuesFormat can use old Codec's DocValuesFormat. For instance Lucene84 uses Lucene80 | ||
| // DocValuesFormat. Refer to defaultDVFormat in LuceneXXCodec.java to find out which version it uses | ||
| this.docValuesFormat = new KNN80DocValuesFormat(); | ||
| this.perFieldDocValuesFormat = new PerFieldDocValuesFormat() { | ||
| @Override | ||
| public DocValuesFormat getDocValuesFormatForField(String field) { | ||
| return docValuesFormat; | ||
| } | ||
| }; | ||
| this.compoundFormat = new KNN80CompoundFormat(); | ||
| } | ||
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| /* | ||
| * This function returns the Codec. | ||
| */ | ||
| public Codec getDelegatee() { | ||
| if (lucene87Codec == null) | ||
| lucene87Codec = Codec.forName(LUCENE_87); | ||
| return lucene87Codec; | ||
| } | ||
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| @Override | ||
| public DocValuesFormat docValuesFormat() { | ||
| return this.perFieldDocValuesFormat; | ||
| } | ||
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| /* | ||
| * For all the below functions, we could have extended FilterCodec, but this brings | ||
| * SPI related issues while loading Codec in the tests. So fall back to traditional | ||
| * approach of manually overriding. | ||
| */ | ||
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| public void setPostingsFormat(PostingsFormat postingsFormat) { | ||
| this.postingsFormat = postingsFormat; | ||
| } | ||
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| @Override | ||
| public PostingsFormat postingsFormat() { | ||
| if (this.postingsFormat == null) { | ||
| return getDelegatee().postingsFormat(); | ||
| } | ||
| return this.postingsFormat; | ||
| } | ||
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| @Override | ||
| public StoredFieldsFormat storedFieldsFormat() { | ||
| return getDelegatee().storedFieldsFormat(); | ||
| } | ||
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| @Override | ||
| public TermVectorsFormat termVectorsFormat() { | ||
| return getDelegatee().termVectorsFormat(); | ||
| } | ||
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| @Override | ||
| public FieldInfosFormat fieldInfosFormat() { | ||
| return getDelegatee().fieldInfosFormat(); | ||
| } | ||
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| @Override | ||
| public SegmentInfoFormat segmentInfoFormat() { | ||
| return getDelegatee().segmentInfoFormat(); | ||
| } | ||
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| @Override | ||
| public NormsFormat normsFormat() { | ||
| return getDelegatee().normsFormat(); | ||
| } | ||
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| @Override | ||
| public LiveDocsFormat liveDocsFormat() { | ||
| return getDelegatee().liveDocsFormat(); | ||
| } | ||
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| @Override | ||
| public CompoundFormat compoundFormat() { | ||
| return this.compoundFormat; | ||
| } | ||
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| @Override | ||
| public PointsFormat pointsFormat() { | ||
| return getDelegatee().pointsFormat(); | ||
| } | ||
| } | ||
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What is this for?
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Actually this variable is not in use. It was pointing to older version. So i updated to latest version. This variable could be used in build.gradle file.
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I see makes sense.