forked from opensearch-project/OpenSearch
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[Star Tree] [Search] Support for metric aggregations with/without ter…
…m query (opensearch-project#15289) --------- Signed-off-by: Sandesh Kumar <sandeshkr419@gmail.com>
- Loading branch information
1 parent
3665b55
commit 9b77ab1
Showing
32 changed files
with
1,853 additions
and
23 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
248 changes: 248 additions & 0 deletions
248
...java/org/opensearch/index/compositeindex/datacube/startree/utils/StarTreeQueryHelper.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,248 @@ | ||
| /* | ||
| * SPDX-License-Identifier: Apache-2.0 | ||
| * | ||
| * The OpenSearch Contributors require contributions made to | ||
| * this file be licensed under the Apache-2.0 license or a | ||
| * compatible open source license. | ||
| */ | ||
|
|
||
| package org.opensearch.index.compositeindex.datacube.startree.utils; | ||
|
|
||
| import org.apache.lucene.index.DocValuesType; | ||
| import org.apache.lucene.index.LeafReaderContext; | ||
| import org.apache.lucene.index.SegmentReader; | ||
| import org.apache.lucene.search.CollectionTerminatedException; | ||
| import org.apache.lucene.search.DocIdSetIterator; | ||
| import org.apache.lucene.util.FixedBitSet; | ||
| import org.opensearch.common.lucene.Lucene; | ||
| import org.opensearch.index.codec.composite.CompositeIndexFieldInfo; | ||
| import org.opensearch.index.codec.composite.CompositeIndexReader; | ||
| import org.opensearch.index.compositeindex.datacube.Dimension; | ||
| import org.opensearch.index.compositeindex.datacube.Metric; | ||
| import org.opensearch.index.compositeindex.datacube.MetricStat; | ||
| import org.opensearch.index.compositeindex.datacube.startree.index.StarTreeValues; | ||
| import org.opensearch.index.compositeindex.datacube.startree.utils.iterator.SortedNumericStarTreeValuesIterator; | ||
| import org.opensearch.index.mapper.CompositeDataCubeFieldType; | ||
| import org.opensearch.index.query.MatchAllQueryBuilder; | ||
| import org.opensearch.index.query.QueryBuilder; | ||
| import org.opensearch.index.query.TermQueryBuilder; | ||
| import org.opensearch.search.aggregations.AggregatorFactory; | ||
| import org.opensearch.search.aggregations.LeafBucketCollector; | ||
| import org.opensearch.search.aggregations.LeafBucketCollectorBase; | ||
| import org.opensearch.search.aggregations.metrics.MetricAggregatorFactory; | ||
| import org.opensearch.search.aggregations.support.ValuesSource; | ||
| import org.opensearch.search.builder.SearchSourceBuilder; | ||
| import org.opensearch.search.internal.SearchContext; | ||
| import org.opensearch.search.startree.StarTreeFilter; | ||
| import org.opensearch.search.startree.StarTreeQueryContext; | ||
|
|
||
| import java.io.IOException; | ||
| import java.util.HashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.function.Consumer; | ||
| import java.util.stream.Collectors; | ||
|
|
||
| /** | ||
| * Helper class for building star-tree query | ||
| * | ||
| * @opensearch.internal | ||
| * @opensearch.experimental | ||
| */ | ||
| public class StarTreeQueryHelper { | ||
|
|
||
| /** | ||
| * Checks if the search context can be supported by star-tree | ||
| */ | ||
| public static boolean isStarTreeSupported(SearchContext context) { | ||
| return context.aggregations() != null && context.mapperService().isCompositeIndexPresent() && context.parsedPostFilter() == null; | ||
| } | ||
|
|
||
| /** | ||
| * Gets StarTreeQueryContext from the search context and source builder. | ||
| * Returns null if the query and aggregation cannot be supported. | ||
| */ | ||
| public static StarTreeQueryContext getStarTreeQueryContext(SearchContext context, SearchSourceBuilder source) throws IOException { | ||
| // Current implementation assumes only single star-tree is supported | ||
| CompositeDataCubeFieldType compositeMappedFieldType = (CompositeDataCubeFieldType) context.mapperService() | ||
| .getCompositeFieldTypes() | ||
| .iterator() | ||
| .next(); | ||
| CompositeIndexFieldInfo starTree = new CompositeIndexFieldInfo( | ||
| compositeMappedFieldType.name(), | ||
| compositeMappedFieldType.getCompositeIndexType() | ||
| ); | ||
|
|
||
| for (AggregatorFactory aggregatorFactory : context.aggregations().factories().getFactories()) { | ||
| MetricStat metricStat = validateStarTreeMetricSupport(compositeMappedFieldType, aggregatorFactory); | ||
| if (metricStat == null) { | ||
| return null; | ||
| } | ||
| } | ||
|
|
||
| // need to cache star tree values only for multiple aggregations | ||
| boolean cacheStarTreeValues = context.aggregations().factories().getFactories().length > 1; | ||
| int cacheSize = cacheStarTreeValues ? context.indexShard().segments(false).size() : -1; | ||
|
|
||
| return StarTreeQueryHelper.tryCreateStarTreeQueryContext(starTree, compositeMappedFieldType, source.query(), cacheSize); | ||
| } | ||
|
|
||
| /** | ||
| * Uses query builder and composite index info to form star-tree query context | ||
| */ | ||
| private static StarTreeQueryContext tryCreateStarTreeQueryContext( | ||
| CompositeIndexFieldInfo compositeIndexFieldInfo, | ||
| CompositeDataCubeFieldType compositeFieldType, | ||
| QueryBuilder queryBuilder, | ||
| int cacheStarTreeValuesSize | ||
| ) { | ||
| Map<String, Long> queryMap; | ||
| if (queryBuilder == null || queryBuilder instanceof MatchAllQueryBuilder) { | ||
| queryMap = null; | ||
| } else if (queryBuilder instanceof TermQueryBuilder) { | ||
| // TODO: Add support for keyword fields | ||
| if (compositeFieldType.getDimensions().stream().anyMatch(d -> d.getDocValuesType() != DocValuesType.SORTED_NUMERIC)) { | ||
| // return null for non-numeric fields | ||
| return null; | ||
| } | ||
|
|
||
| List<String> supportedDimensions = compositeFieldType.getDimensions() | ||
| .stream() | ||
| .map(Dimension::getField) | ||
| .collect(Collectors.toList()); | ||
| queryMap = getStarTreePredicates(queryBuilder, supportedDimensions); | ||
| if (queryMap == null) { | ||
| return null; | ||
| } | ||
| } else { | ||
| return null; | ||
| } | ||
| return new StarTreeQueryContext(compositeIndexFieldInfo, queryMap, cacheStarTreeValuesSize); | ||
| } | ||
|
|
||
| /** | ||
| * Parse query body to star-tree predicates | ||
| * @param queryBuilder to match star-tree supported query shape | ||
| * @return predicates to match | ||
| */ | ||
| private static Map<String, Long> getStarTreePredicates(QueryBuilder queryBuilder, List<String> supportedDimensions) { | ||
| TermQueryBuilder tq = (TermQueryBuilder) queryBuilder; | ||
| String field = tq.fieldName(); | ||
| if (!supportedDimensions.contains(field)) { | ||
| return null; | ||
| } | ||
| long inputQueryVal = Long.parseLong(tq.value().toString()); | ||
|
|
||
| // Create a map with the field and the value | ||
| Map<String, Long> predicateMap = new HashMap<>(); | ||
| predicateMap.put(field, inputQueryVal); | ||
| return predicateMap; | ||
| } | ||
|
|
||
| private static MetricStat validateStarTreeMetricSupport( | ||
| CompositeDataCubeFieldType compositeIndexFieldInfo, | ||
| AggregatorFactory aggregatorFactory | ||
| ) { | ||
| if (aggregatorFactory instanceof MetricAggregatorFactory && aggregatorFactory.getSubFactories().getFactories().length == 0) { | ||
| String field; | ||
| Map<String, List<MetricStat>> supportedMetrics = compositeIndexFieldInfo.getMetrics() | ||
| .stream() | ||
| .collect(Collectors.toMap(Metric::getField, Metric::getMetrics)); | ||
|
|
||
| MetricStat metricStat = ((MetricAggregatorFactory) aggregatorFactory).getMetricStat(); | ||
| field = ((MetricAggregatorFactory) aggregatorFactory).getField(); | ||
|
|
||
| if (supportedMetrics.containsKey(field) && supportedMetrics.get(field).contains(metricStat)) { | ||
| return metricStat; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
|
||
| public static CompositeIndexFieldInfo getSupportedStarTree(SearchContext context) { | ||
| StarTreeQueryContext starTreeQueryContext = context.getStarTreeQueryContext(); | ||
| return (starTreeQueryContext != null) ? starTreeQueryContext.getStarTree() : null; | ||
| } | ||
|
|
||
| public static StarTreeValues getStarTreeValues(LeafReaderContext context, CompositeIndexFieldInfo starTree) throws IOException { | ||
| SegmentReader reader = Lucene.segmentReader(context.reader()); | ||
| if (!(reader.getDocValuesReader() instanceof CompositeIndexReader)) { | ||
| return null; | ||
| } | ||
| CompositeIndexReader starTreeDocValuesReader = (CompositeIndexReader) reader.getDocValuesReader(); | ||
| return (StarTreeValues) starTreeDocValuesReader.getCompositeIndexValues(starTree); | ||
| } | ||
|
|
||
| /** | ||
| * Get the star-tree leaf collector | ||
| * This collector computes the aggregation prematurely and invokes an early termination collector | ||
| */ | ||
| public static LeafBucketCollector getStarTreeLeafCollector( | ||
| SearchContext context, | ||
| ValuesSource.Numeric valuesSource, | ||
| LeafReaderContext ctx, | ||
| LeafBucketCollector sub, | ||
| CompositeIndexFieldInfo starTree, | ||
| String metric, | ||
| Consumer<Long> valueConsumer, | ||
| Runnable finalConsumer | ||
| ) throws IOException { | ||
| StarTreeValues starTreeValues = getStarTreeValues(ctx, starTree); | ||
| assert starTreeValues != null; | ||
| String fieldName = ((ValuesSource.Numeric.FieldData) valuesSource).getIndexFieldName(); | ||
| String metricName = StarTreeUtils.fullyQualifiedFieldNameForStarTreeMetricsDocValues(starTree.getField(), fieldName, metric); | ||
|
|
||
| assert starTreeValues != null; | ||
| SortedNumericStarTreeValuesIterator valuesIterator = (SortedNumericStarTreeValuesIterator) starTreeValues.getMetricValuesIterator( | ||
| metricName | ||
| ); | ||
| // Obtain a FixedBitSet of matched star tree document IDs | ||
| FixedBitSet filteredValues = getStarTreeFilteredValues(context, ctx, starTreeValues); | ||
| assert filteredValues != null; | ||
|
|
||
| int numBits = filteredValues.length(); // Get the number of the filtered values (matching docs) | ||
| if (numBits > 0) { | ||
| // Iterate over the filtered values | ||
| for (int bit = filteredValues.nextSetBit(0); bit != DocIdSetIterator.NO_MORE_DOCS; bit = (bit + 1 < numBits) | ||
| ? filteredValues.nextSetBit(bit + 1) | ||
| : DocIdSetIterator.NO_MORE_DOCS) { | ||
| // Advance to the entryId in the valuesIterator | ||
| if (valuesIterator.advanceExact(bit) == false) { | ||
| continue; // Skip if no more entries | ||
| } | ||
|
|
||
| // Iterate over the values for the current entryId | ||
| for (int i = 0, count = valuesIterator.entryValueCount(); i < count; i++) { | ||
| long value = valuesIterator.nextValue(); | ||
| valueConsumer.accept(value); // Apply the consumer operation (e.g., max, sum) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| // Call the final consumer after processing all entries | ||
| finalConsumer.run(); | ||
|
|
||
| // Return a LeafBucketCollector that terminates collection | ||
| return new LeafBucketCollectorBase(sub, valuesSource.doubleValues(ctx)) { | ||
| @Override | ||
| public void collect(int doc, long bucket) { | ||
| throw new CollectionTerminatedException(); | ||
| } | ||
| }; | ||
| } | ||
|
|
||
| /** | ||
| * Get the filtered values for the star-tree query | ||
| * Cache the results in case of multiple aggregations (if cache is initialized) | ||
| * @return FixedBitSet of matched document IDs | ||
| */ | ||
| public static FixedBitSet getStarTreeFilteredValues(SearchContext context, LeafReaderContext ctx, StarTreeValues starTreeValues) | ||
| throws IOException { | ||
| FixedBitSet result = context.getStarTreeQueryContext().getStarTreeValues(ctx); | ||
| if (result == null) { | ||
| result = StarTreeFilter.getStarTreeResult(starTreeValues, context.getStarTreeQueryContext().getQueryMap()); | ||
| context.getStarTreeQueryContext().setStarTreeValues(ctx, result); | ||
| } | ||
| return result; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.