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Revert 74559 (Avoid global ordinals in composite) (#78848)
* Revert "Update docs that composite agg no longer uses global ords (#74754)" This reverts commit ec799ab. * Revert "Avoid global ordinals in composite aggregation (#74559)" This reverts commit 5cfcb2f. Conflicts: server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/CompositeValuesCollectorQueue.java server/src/main/java/org/elasticsearch/search/aggregations/bucket/composite/OrdinalValuesSource.java
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207 changes: 207 additions & 0 deletions
207
...ava/org/elasticsearch/search/aggregations/bucket/composite/GlobalOrdinalValuesSource.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,207 @@ | ||
| /* | ||
| * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one | ||
| * or more contributor license agreements. Licensed under the Elastic License | ||
| * 2.0 and the Server Side Public License, v 1; you may not use this file except | ||
| * in compliance with, at your election, the Elastic License 2.0 or the Server | ||
| * Side Public License, v 1. | ||
| */ | ||
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| package org.elasticsearch.search.aggregations.bucket.composite; | ||
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| import org.apache.lucene.index.IndexReader; | ||
| import org.apache.lucene.index.LeafReaderContext; | ||
| import org.apache.lucene.index.SortedSetDocValues; | ||
| import org.apache.lucene.search.MatchAllDocsQuery; | ||
| import org.apache.lucene.search.Query; | ||
| import org.apache.lucene.util.BytesRef; | ||
| import org.elasticsearch.common.util.BigArrays; | ||
| import org.elasticsearch.common.util.LongArray; | ||
| import org.elasticsearch.core.CheckedFunction; | ||
| import org.elasticsearch.core.Releasables; | ||
| import org.elasticsearch.index.mapper.MappedFieldType; | ||
| import org.elasticsearch.index.mapper.StringFieldType; | ||
| import org.elasticsearch.search.DocValueFormat; | ||
| import org.elasticsearch.search.aggregations.LeafBucketCollector; | ||
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| import java.io.IOException; | ||
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| import static org.apache.lucene.index.SortedSetDocValues.NO_MORE_ORDS; | ||
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| /** | ||
| * A {@link SingleDimensionValuesSource} for global ordinals. | ||
| */ | ||
| class GlobalOrdinalValuesSource extends SingleDimensionValuesSource<BytesRef> { | ||
| private final CheckedFunction<LeafReaderContext, SortedSetDocValues, IOException> docValuesFunc; | ||
| private LongArray values; | ||
| private SortedSetDocValues lookup; | ||
| private long currentValue; | ||
| private Long afterValueGlobalOrd; | ||
| private boolean isTopValueInsertionPoint; | ||
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| private long lastLookupOrd = -1; | ||
| private BytesRef lastLookupValue; | ||
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| GlobalOrdinalValuesSource( | ||
| BigArrays bigArrays, | ||
| MappedFieldType type, | ||
| CheckedFunction<LeafReaderContext, SortedSetDocValues, IOException> docValuesFunc, | ||
| DocValueFormat format, | ||
| boolean missingBucket, | ||
| int size, | ||
| int reverseMul | ||
| ) { | ||
| super(bigArrays, format, type, missingBucket, size, reverseMul); | ||
| this.docValuesFunc = docValuesFunc; | ||
| this.values = bigArrays.newLongArray(Math.min(size, 100), false); | ||
| } | ||
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| @Override | ||
| void copyCurrent(int slot) { | ||
| values = bigArrays.grow(values, slot + 1); | ||
| values.set(slot, currentValue); | ||
| } | ||
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| @Override | ||
| int compare(int from, int to) { | ||
| return Long.compare(values.get(from), values.get(to)) * reverseMul; | ||
| } | ||
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| @Override | ||
| int compareCurrent(int slot) { | ||
| return Long.compare(currentValue, values.get(slot)) * reverseMul; | ||
| } | ||
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| @Override | ||
| int compareCurrentWithAfter() { | ||
| int cmp = Long.compare(currentValue, afterValueGlobalOrd); | ||
| if (cmp == 0 && isTopValueInsertionPoint) { | ||
| // the top value is missing in this shard, the comparison is against | ||
| // the insertion point of the top value so equality means that the value | ||
| // is "after" the insertion point. | ||
| return reverseMul; | ||
| } | ||
| return cmp * reverseMul; | ||
| } | ||
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| @Override | ||
| int hashCode(int slot) { | ||
| return Long.hashCode(values.get(slot)); | ||
| } | ||
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| @Override | ||
| int hashCodeCurrent() { | ||
| return Long.hashCode(currentValue); | ||
| } | ||
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| @Override | ||
| void setAfter(Comparable<?> value) { | ||
| if (missingBucket && value == null) { | ||
| afterValue = null; | ||
| afterValueGlobalOrd = -1L; | ||
| } else if (value.getClass() == String.class || (missingBucket && fieldType == null)) { | ||
| // the value might be not string if this field is missing in this shard but present in other shards | ||
| // and doesn't have a string type | ||
| afterValue = format.parseBytesRef(value.toString()); | ||
| } else { | ||
| throw new IllegalArgumentException("invalid value, expected string, got " + value.getClass().getSimpleName()); | ||
| } | ||
| } | ||
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| @Override | ||
| BytesRef toComparable(int slot) throws IOException { | ||
| long globalOrd = values.get(slot); | ||
| if (missingBucket && globalOrd == -1) { | ||
| return null; | ||
| } else if (globalOrd == lastLookupOrd) { | ||
| return lastLookupValue; | ||
| } else { | ||
| lastLookupOrd = globalOrd; | ||
| lastLookupValue = BytesRef.deepCopyOf(lookup.lookupOrd(values.get(slot))); | ||
| return lastLookupValue; | ||
| } | ||
| } | ||
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| @Override | ||
| LeafBucketCollector getLeafCollector(LeafReaderContext context, LeafBucketCollector next) throws IOException { | ||
| final SortedSetDocValues dvs = docValuesFunc.apply(context); | ||
| if (lookup == null) { | ||
| initLookup(dvs); | ||
| } | ||
| return new LeafBucketCollector() { | ||
| @Override | ||
| public void collect(int doc, long bucket) throws IOException { | ||
| if (dvs.advanceExact(doc)) { | ||
| long ord; | ||
| while ((ord = dvs.nextOrd()) != NO_MORE_ORDS) { | ||
| currentValue = ord; | ||
| next.collect(doc, bucket); | ||
| } | ||
| } else if (missingBucket) { | ||
| currentValue = -1; | ||
| next.collect(doc, bucket); | ||
| } | ||
| } | ||
| }; | ||
| } | ||
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| @Override | ||
| LeafBucketCollector getLeafCollector(Comparable<BytesRef> value, LeafReaderContext context, LeafBucketCollector next) | ||
| throws IOException { | ||
| if (value.getClass() != BytesRef.class) { | ||
| throw new IllegalArgumentException("Expected BytesRef, got " + value.getClass()); | ||
| } | ||
| BytesRef term = (BytesRef) value; | ||
| final SortedSetDocValues dvs = docValuesFunc.apply(context); | ||
| if (lookup == null) { | ||
| initLookup(dvs); | ||
| } | ||
| return new LeafBucketCollector() { | ||
| boolean currentValueIsSet = false; | ||
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| @Override | ||
| public void collect(int doc, long bucket) throws IOException { | ||
| if (currentValueIsSet == false) { | ||
| if (dvs.advanceExact(doc)) { | ||
| long ord; | ||
| while ((ord = dvs.nextOrd()) != NO_MORE_ORDS) { | ||
| if (term.equals(lookup.lookupOrd(ord))) { | ||
| currentValueIsSet = true; | ||
| currentValue = ord; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| } | ||
| assert currentValueIsSet; | ||
| next.collect(doc, bucket); | ||
| } | ||
| }; | ||
| } | ||
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| @Override | ||
| SortedDocsProducer createSortedDocsProducerOrNull(IndexReader reader, Query query) { | ||
| if (checkIfSortedDocsIsApplicable(reader, fieldType) == false | ||
| || fieldType instanceof StringFieldType == false | ||
| || (query != null && query.getClass() != MatchAllDocsQuery.class)) { | ||
| return null; | ||
| } | ||
| return new TermsSortedDocsProducer(fieldType.name()); | ||
| } | ||
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| @Override | ||
| public void close() { | ||
| Releasables.close(values); | ||
| } | ||
|
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| private void initLookup(SortedSetDocValues dvs) throws IOException { | ||
| lookup = dvs; | ||
| if (afterValue != null && afterValueGlobalOrd == null) { | ||
| afterValueGlobalOrd = lookup.lookupTerm(afterValue); | ||
| if (afterValueGlobalOrd < 0) { | ||
| // convert negative insert position | ||
| afterValueGlobalOrd = -afterValueGlobalOrd - 1; | ||
| isTopValueInsertionPoint = true; | ||
| } | ||
| } | ||
| } | ||
| } |
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