mirror of https://github.com/apache/lucene.git
SOLR-8643: made BlockJoinFacetComponent just a shortcut for BlockJoinDocSetFacetComponent, which supports pure disjunctions
This commit is contained in:
parent
9a5dcce5de
commit
15bfeb6b0c
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@ -252,6 +252,8 @@ Other Changes
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* SOLR-9421: Refactored out OverseerCollectionMessageHandler to smaller classes (noble)
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* SOLR-8643: BlockJoinFacetComponent is substituted by BlockJoinFacetDocSetComponent. It doesn't need to change solrconfig.xml (Mikhail Khludnev)
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================== 6.1.0 ==================
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Consult the LUCENE_CHANGES.txt file for additional, low level, changes in this release.
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@ -22,16 +22,13 @@ import java.util.List;
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import org.apache.lucene.index.LeafReaderContext;
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import org.apache.lucene.search.BooleanClause;
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import org.apache.lucene.search.BooleanQuery;
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import org.apache.lucene.search.Collector;
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import org.apache.lucene.search.DocIdSet;
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import org.apache.lucene.search.DocIdSetIterator;
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import org.apache.lucene.search.LeafCollector;
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import org.apache.lucene.search.MatchAllDocsQuery;
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import org.apache.lucene.search.Query;
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import org.apache.lucene.search.join.ToParentBlockJoinQuery;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.handler.component.ResponseBuilder;
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import org.apache.solr.request.SolrQueryRequest;
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import org.apache.solr.search.BitDocSet;
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import org.apache.solr.search.DocSet;
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import org.apache.solr.search.Filter;
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@ -40,11 +37,11 @@ import org.apache.solr.search.facet.BlockJoin;
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import org.apache.solr.search.join.BlockJoinFieldFacetAccumulator.AggregatableDocIter;
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/**
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* It does the same as BlockJoinFacetComponent, but operates on docsets,
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* it should be faster for static mostly indexes. This component doesn't impact
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* query result caching, but hits filter cache to retrieve docsets.
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* Calculates facets on children documents and aggregates hits by parent documents.
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* Enables when child.facet.field parameter specifies a field name for faceting.
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* So far it supports string fields only. It requires to search by {@link ToParentBlockJoinQuery}.
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* */
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public class BlockJoinDocSetFacetComponent extends BlockJoinFacetComponent {
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public class BlockJoinDocSetFacetComponent extends BlockJoinFacetComponentSupport {
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private final String bjqKey = this.getClass().getSimpleName()+".bjq";
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@ -115,27 +112,6 @@ public class BlockJoinDocSetFacetComponent extends BlockJoinFacetComponent {
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}
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}
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private static final class NoDelegateFacetCollector extends BlockJoinFacetCollector {
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{
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setDelegate(new Collector() {
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@Override
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public boolean needsScores() {
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return false;
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}
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@Override
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public LeafCollector getLeafCollector(LeafReaderContext context) throws IOException {
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return null;
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}
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});
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}
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private NoDelegateFacetCollector(SolrQueryRequest req) throws IOException {
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super(req);
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}
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}
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public BlockJoinDocSetFacetComponent() {}
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@Override
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@ -196,7 +172,7 @@ public class BlockJoinDocSetFacetComponent extends BlockJoinFacetComponent {
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Filter filter = selectedChildren.getTopFilter();
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final BlockJoinFacetCollector facetCounter = new NoDelegateFacetCollector(rb.req);
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final BlockJoinFacetAccsHolder facetCounter = new BlockJoinFacetAccsHolder(rb.req);
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for (int subIdx = 0; subIdx < leaves.size(); subIdx++) {
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LeafReaderContext subCtx = leaves.get(subIdx);
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@ -17,15 +17,11 @@
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package org.apache.solr.search.join;
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import java.io.IOException;
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import java.util.LinkedList;
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import java.util.Queue;
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import org.apache.lucene.index.LeafReaderContext;
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import org.apache.lucene.search.Scorer;
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import org.apache.lucene.search.join.ToParentBlockJoinQuery.ChildrenMatchesScorer;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.request.SolrQueryRequest;
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import org.apache.solr.search.DelegatingCollector;
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import org.apache.solr.search.join.BlockJoinFieldFacetAccumulator.AggregatableDocIter;
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import org.apache.solr.search.join.BlockJoinFieldFacetAccumulator.SortedIntsAggDocIterator;
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@ -33,14 +29,14 @@ import org.apache.solr.search.join.BlockJoinFieldFacetAccumulator.SortedIntsAggD
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* For each collected parent document creates matched block, which is a docSet with matched children and parent doc
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* itself. Then updates each BlockJoinFieldFacetAccumulator with the created matched block.
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*/
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class BlockJoinFacetCollector extends DelegatingCollector {
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class BlockJoinFacetAccsHolder {
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private BlockJoinFieldFacetAccumulator[] blockJoinFieldFacetAccumulators;
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private boolean firstSegment = true;
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private ChildrenMatchesScorer blockJoinScorer;
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private int[] childDocs = new int[0];
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BlockJoinFacetCollector(SolrQueryRequest req) throws IOException {
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String[] facetFieldNames = BlockJoinFacetComponent.getChildFacetFields(req);
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BlockJoinFacetAccsHolder(SolrQueryRequest req) throws IOException {
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String[] facetFieldNames = BlockJoinFacetComponentSupport.getChildFacetFields(req);
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assert facetFieldNames != null;
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blockJoinFieldFacetAccumulators = new BlockJoinFieldFacetAccumulator[facetFieldNames.length];
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for (int i = 0; i < facetFieldNames.length; i++) {
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@ -48,28 +44,7 @@ class BlockJoinFacetCollector extends DelegatingCollector {
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}
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}
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@Override
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public void setScorer(Scorer scorer) throws IOException {
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super.setScorer(scorer);
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blockJoinScorer = getToParentScorer(scorer, new LinkedList<Scorer>());
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if (blockJoinScorer != null) {
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// instruct scorer to keep track of the child docIds for retrieval purposes.
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blockJoinScorer.trackPendingChildHits();
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}
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}
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private ChildrenMatchesScorer getToParentScorer(Scorer scorer, Queue<Scorer> queue) {
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if (scorer == null || scorer instanceof ChildrenMatchesScorer) {
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return (ChildrenMatchesScorer) scorer;
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} else {
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for (Scorer.ChildScorer child : scorer.getChildren()) {
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queue.add(child.child);
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}
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return getToParentScorer(queue.poll(), queue);
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}
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}
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@Override
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protected void doSetNextReader(LeafReaderContext context) throws IOException {
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for (BlockJoinFieldFacetAccumulator blockJoinFieldFacetAccumulator : blockJoinFieldFacetAccumulators) {
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if(!firstSegment){
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@ -78,21 +53,12 @@ class BlockJoinFacetCollector extends DelegatingCollector {
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blockJoinFieldFacetAccumulator.setNextReader(context);
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}
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firstSegment = false;
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super.doSetNextReader(context);
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}
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@Override
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public void collect(int doc) throws IOException {
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incrementFacets(doc);
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super.collect(doc);
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}
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@Override
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public void finish() throws IOException {
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for (BlockJoinFieldFacetAccumulator blockJoinFieldFacetAccumulator : blockJoinFieldFacetAccumulators) {
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blockJoinFieldFacetAccumulator.migrateGlobal();
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}
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super.finish();
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}
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protected void incrementFacets(int parent) throws IOException {
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@ -16,167 +16,8 @@
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*/
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package org.apache.solr.search.join;
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import java.io.IOException;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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/** this is just a stub refers to {@link BlockJoinDocSetFacetComponent} to avoid
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* changes in configs */
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public class BlockJoinFacetComponent extends BlockJoinDocSetFacetComponent {
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import org.apache.lucene.search.BooleanClause;
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import org.apache.lucene.search.BooleanQuery;
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import org.apache.lucene.search.Query;
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import org.apache.lucene.search.join.ToParentBlockJoinQuery;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.params.ShardParams;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.handler.component.ResponseBuilder;
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import org.apache.solr.handler.component.SearchComponent;
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import org.apache.solr.handler.component.ShardRequest;
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import org.apache.solr.handler.component.ShardResponse;
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import org.apache.solr.request.SolrQueryRequest;
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import org.apache.solr.search.DelegatingCollector;
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import org.apache.solr.search.SolrIndexSearcher;
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/**
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* Calculates facets on children documents and aggregates hits by parent documents.
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* Enables when child.facet.field parameter specifies a field name for faceting.
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* So far it supports string fields only. It requires to search by {@link ToParentBlockJoinQuery}.
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* It disables query result cache but only when it's ebaled for request by child.facet.field parameter
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* */
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public class BlockJoinFacetComponent extends SearchComponent {
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public static final String CHILD_FACET_FIELD_PARAMETER = "child.facet.field";
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public static final String NO_TO_PARENT_BJQ_MESSAGE = "Block join faceting is allowed with ToParentBlockJoinQuery only";
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public static final String COLLECTOR_CONTEXT_PARAM = "blockJoinFacetCollector";
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@Override
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public void prepare(ResponseBuilder rb) throws IOException {
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if (getChildFacetFields(rb.req) != null) {
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validateQuery(rb.getQuery());
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// we count facets only when searching
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rb.setFieldFlags(rb.getFieldFlags() | SolrIndexSearcher.NO_CHECK_QCACHE);
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if (rb.getFilters() == null) {
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rb.setFilters(new LinkedList<Query>());
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}
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DelegatingCollector blockJoinFacetCollector = new BlockJoinFacetCollector(rb.req);
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rb.req.getContext().put(COLLECTOR_CONTEXT_PARAM, blockJoinFacetCollector);
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rb.getFilters().add(new BlockJoinFacetFilter(blockJoinFacetCollector));
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}
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}
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protected void validateQuery(Query query) {
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if (!(query instanceof ToParentBlockJoinQuery)) {
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if (query instanceof BooleanQuery) {
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List<BooleanClause> clauses = ((BooleanQuery) query).clauses();
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for (BooleanClause clause : clauses) {
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if (clause.getQuery() instanceof ToParentBlockJoinQuery) {
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return;
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}
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}
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}
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throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, NO_TO_PARENT_BJQ_MESSAGE);
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}
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}
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static String[] getChildFacetFields(SolrQueryRequest req) {
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return req.getParams().getParams(CHILD_FACET_FIELD_PARAMETER);
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}
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@Override
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public void process(ResponseBuilder rb) throws IOException {
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if (getChildFacetFields(rb.req) != null) {
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BlockJoinFacetCollector blockJoinFacetCollector = (BlockJoinFacetCollector) rb.req.getContext().get(COLLECTOR_CONTEXT_PARAM);
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assert blockJoinFacetCollector != null;
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NamedList output;
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if (isShard(rb)) {
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// distributed search, put results into own cell in order not to clash with facet component
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output = getChildFacetFields(rb.rsp.getValues(), true);
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} else {
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// normal process, put results into standard response
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output = getFacetFieldsList(rb);
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}
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mergeFacets(output, blockJoinFacetCollector.getFacets());
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}
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}
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private boolean isShard(ResponseBuilder rb) {
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return "true".equals(rb.req.getParams().get(ShardParams.IS_SHARD));
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}
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private NamedList getChildFacetFields(NamedList responseValues, boolean createIfAbsent) {
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return getNamedListFromList(responseValues, "child_facet_fields", createIfAbsent);
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}
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private void mergeFacets(NamedList childFacetFields, NamedList shardFacets) {
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if (shardFacets != null) {
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for (Map.Entry<String, NamedList<Integer>> nextShardFacet : (Iterable<Map.Entry<String, NamedList<Integer>>>) shardFacets) {
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String fieldName = nextShardFacet.getKey();
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NamedList<Integer> collectedFacet = (NamedList<Integer>) childFacetFields.get(fieldName);
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NamedList<Integer> shardFacet = nextShardFacet.getValue();
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if (collectedFacet == null) {
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childFacetFields.add(fieldName, shardFacet);
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} else {
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mergeFacetValues(collectedFacet, shardFacet);
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}
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}
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}
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}
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private void mergeFacetValues(NamedList<Integer> collectedFacetValue, NamedList<Integer> shardFacetValue) {
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for (Map.Entry<String, Integer> nextShardValue : shardFacetValue) {
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String facetValue = nextShardValue.getKey();
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Integer shardCount = nextShardValue.getValue();
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int indexOfCollectedValue = collectedFacetValue.indexOf(facetValue, 0);
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if (indexOfCollectedValue == -1) {
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collectedFacetValue.add(facetValue, shardCount);
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} else {
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int newCount = collectedFacetValue.getVal(indexOfCollectedValue) + shardCount;
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collectedFacetValue.setVal(indexOfCollectedValue, newCount);
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}
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}
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}
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private NamedList getNamedListFromList(NamedList parentList, String name, boolean createIfAbsent) {
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NamedList result = null;
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if (parentList != null) {
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result = (NamedList) parentList.get(name);
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if (result == null && createIfAbsent) {
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result = new NamedList();
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parentList.add(name, result);
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}
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}
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return result;
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}
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@Override
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public void handleResponses(ResponseBuilder rb, ShardRequest sreq) {
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NamedList collectedChildFacetFields = getChildFacetFields(rb.rsp.getValues(), true);
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List<ShardResponse> responses = sreq.responses;
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for (ShardResponse shardResponse : responses) {
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NamedList shardChildFacetFields = getChildFacetFields(shardResponse.getSolrResponse().getResponse(), false);
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mergeFacets(collectedChildFacetFields, shardChildFacetFields);
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}
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}
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@Override
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public void finishStage(ResponseBuilder rb) {
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if (rb.stage != ResponseBuilder.STAGE_GET_FIELDS) return;
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NamedList childFacetFields = getChildFacetFields(rb.rsp.getValues(), true);
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NamedList facetFields = getFacetFieldsList(rb);
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for (Map.Entry<String, NamedList> childFacetField : (Iterable<Map.Entry<String, NamedList>>) childFacetFields) {
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facetFields.add(childFacetField.getKey(), childFacetField.getValue());
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}
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rb.rsp.getValues().remove("child_facet_fields");
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}
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private NamedList getFacetFieldsList(ResponseBuilder rb) {
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NamedList facetCounts = getNamedListFromList(rb.rsp.getValues(), "facet_counts", true);
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return getNamedListFromList(facetCounts, "facet_fields", true);
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}
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@Override
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public String getDescription() {
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return "BlockJoin facet component";
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}
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}
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@ -0,0 +1,156 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.solr.search.join;
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import java.io.IOException;
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import java.util.List;
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import java.util.Map;
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import org.apache.lucene.search.BooleanClause;
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import org.apache.lucene.search.BooleanQuery;
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import org.apache.lucene.search.Query;
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import org.apache.lucene.search.join.ToParentBlockJoinQuery;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.params.ShardParams;
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import org.apache.solr.common.util.NamedList;
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import org.apache.solr.handler.component.ResponseBuilder;
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import org.apache.solr.handler.component.SearchComponent;
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import org.apache.solr.handler.component.ShardRequest;
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import org.apache.solr.handler.component.ShardResponse;
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import org.apache.solr.request.SolrQueryRequest;
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abstract class BlockJoinFacetComponentSupport extends SearchComponent {
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public static final String CHILD_FACET_FIELD_PARAMETER = "child.facet.field";
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public static final String NO_TO_PARENT_BJQ_MESSAGE = "Block join faceting is allowed with ToParentBlockJoinQuery only";
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public static final String COLLECTOR_CONTEXT_PARAM = "blockJoinFacetCollector";
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protected void validateQuery(Query query) {
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if (!(query instanceof ToParentBlockJoinQuery)) {
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if (query instanceof BooleanQuery) {
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List<BooleanClause> clauses = ((BooleanQuery) query).clauses();
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for (BooleanClause clause : clauses) {
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if (clause.getQuery() instanceof ToParentBlockJoinQuery) {
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return;
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}
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}
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}
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throw new SolrException(SolrException.ErrorCode.BAD_REQUEST, NO_TO_PARENT_BJQ_MESSAGE);
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}
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}
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static String[] getChildFacetFields(SolrQueryRequest req) {
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return req.getParams().getParams(CHILD_FACET_FIELD_PARAMETER);
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}
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@Override
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public void process(ResponseBuilder rb) throws IOException {
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if (getChildFacetFields(rb.req) != null) {
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BlockJoinFacetAccsHolder blockJoinFacetCollector = (BlockJoinFacetAccsHolder) rb.req.getContext().get(COLLECTOR_CONTEXT_PARAM);
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assert blockJoinFacetCollector != null;
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NamedList output;
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if (isShard(rb)) {
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// distributed search, put results into own cell in order not to clash with facet component
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output = getChildFacetFields(rb.rsp.getValues(), true);
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} else {
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// normal process, put results into standard response
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output = getFacetFieldsList(rb);
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}
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mergeFacets(output, blockJoinFacetCollector.getFacets());
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}
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}
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private boolean isShard(ResponseBuilder rb) {
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return "true".equals(rb.req.getParams().get(ShardParams.IS_SHARD));
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}
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private NamedList getChildFacetFields(NamedList responseValues, boolean createIfAbsent) {
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return getNamedListFromList(responseValues, "child_facet_fields", createIfAbsent);
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}
|
||||
|
||||
private void mergeFacets(NamedList childFacetFields, NamedList shardFacets) {
|
||||
if (shardFacets != null) {
|
||||
for (Map.Entry<String, NamedList<Integer>> nextShardFacet : (Iterable<Map.Entry<String, NamedList<Integer>>>) shardFacets) {
|
||||
String fieldName = nextShardFacet.getKey();
|
||||
NamedList<Integer> collectedFacet = (NamedList<Integer>) childFacetFields.get(fieldName);
|
||||
NamedList<Integer> shardFacet = nextShardFacet.getValue();
|
||||
if (collectedFacet == null) {
|
||||
childFacetFields.add(fieldName, shardFacet);
|
||||
} else {
|
||||
mergeFacetValues(collectedFacet, shardFacet);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void mergeFacetValues(NamedList<Integer> collectedFacetValue, NamedList<Integer> shardFacetValue) {
|
||||
for (Map.Entry<String, Integer> nextShardValue : shardFacetValue) {
|
||||
String facetValue = nextShardValue.getKey();
|
||||
Integer shardCount = nextShardValue.getValue();
|
||||
int indexOfCollectedValue = collectedFacetValue.indexOf(facetValue, 0);
|
||||
if (indexOfCollectedValue == -1) {
|
||||
collectedFacetValue.add(facetValue, shardCount);
|
||||
} else {
|
||||
int newCount = collectedFacetValue.getVal(indexOfCollectedValue) + shardCount;
|
||||
collectedFacetValue.setVal(indexOfCollectedValue, newCount);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private NamedList getNamedListFromList(NamedList parentList, String name, boolean createIfAbsent) {
|
||||
NamedList result = null;
|
||||
if (parentList != null) {
|
||||
result = (NamedList) parentList.get(name);
|
||||
if (result == null && createIfAbsent) {
|
||||
result = new NamedList();
|
||||
parentList.add(name, result);
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleResponses(ResponseBuilder rb, ShardRequest sreq) {
|
||||
NamedList collectedChildFacetFields = getChildFacetFields(rb.rsp.getValues(), true);
|
||||
List<ShardResponse> responses = sreq.responses;
|
||||
for (ShardResponse shardResponse : responses) {
|
||||
NamedList shardChildFacetFields = getChildFacetFields(shardResponse.getSolrResponse().getResponse(), false);
|
||||
mergeFacets(collectedChildFacetFields, shardChildFacetFields);
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void finishStage(ResponseBuilder rb) {
|
||||
if (rb.stage != ResponseBuilder.STAGE_GET_FIELDS) return;
|
||||
NamedList childFacetFields = getChildFacetFields(rb.rsp.getValues(), true);
|
||||
NamedList facetFields = getFacetFieldsList(rb);
|
||||
for (Map.Entry<String, NamedList> childFacetField : (Iterable<Map.Entry<String, NamedList>>) childFacetFields) {
|
||||
facetFields.add(childFacetField.getKey(), childFacetField.getValue());
|
||||
}
|
||||
rb.rsp.getValues().remove("child_facet_fields");
|
||||
}
|
||||
|
||||
private NamedList getFacetFieldsList(ResponseBuilder rb) {
|
||||
NamedList facetCounts = getNamedListFromList(rb.rsp.getValues(), "facet_counts", true);
|
||||
return getNamedListFromList(facetCounts, "facet_fields", true);
|
||||
}
|
||||
|
||||
|
||||
@Override
|
||||
public String getDescription() {
|
||||
return "BlockJoin facet component";
|
||||
}
|
||||
}
|
Loading…
Reference in New Issue