mirror of https://github.com/apache/lucene.git
SOLR-7968: Make QueryComponent extensible
This commit is contained in:
David Smiley
parent
14a2c16ca4
commit
4cdce3db77
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@ -583,6 +583,8 @@ Other Changes
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* SOLR-8597: add default, no-op QParserPlugin.init(NamedList) method (Christine Poerschke)
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* SOLR-7968: Make QueryComponent more extensible. (Markus Jelsma via David Smiley)
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================== 5.4.1 ==================
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Bug Fixes
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@ -235,7 +235,7 @@ public class QueryComponent extends SearchComponent
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}
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}
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private void prepareGrouping(ResponseBuilder rb) throws IOException {
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protected void prepareGrouping(ResponseBuilder rb) throws IOException {
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SolrQueryRequest req = rb.req;
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SolrParams params = req.getParams();
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@ -671,7 +671,7 @@ public class QueryComponent extends SearchComponent
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}
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}
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private int groupedDistributedProcess(ResponseBuilder rb) {
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protected int groupedDistributedProcess(ResponseBuilder rb) {
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int nextStage = ResponseBuilder.STAGE_DONE;
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ShardRequestFactory shardRequestFactory = null;
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@ -705,7 +705,7 @@ public class QueryComponent extends SearchComponent
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return nextStage;
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}
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private int regularDistributedProcess(ResponseBuilder rb) {
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protected int regularDistributedProcess(ResponseBuilder rb) {
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if (rb.stage < ResponseBuilder.STAGE_PARSE_QUERY)
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return ResponseBuilder.STAGE_PARSE_QUERY;
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if (rb.stage == ResponseBuilder.STAGE_PARSE_QUERY) {
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@ -734,7 +734,7 @@ public class QueryComponent extends SearchComponent
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}
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}
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private void handleGroupedResponses(ResponseBuilder rb, ShardRequest sreq) {
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protected void handleGroupedResponses(ResponseBuilder rb, ShardRequest sreq) {
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ShardResponseProcessor responseProcessor = null;
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if ((sreq.purpose & ShardRequest.PURPOSE_GET_TOP_GROUPS) != 0) {
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responseProcessor = new SearchGroupShardResponseProcessor();
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@ -749,7 +749,7 @@ public class QueryComponent extends SearchComponent
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}
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}
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private void handleRegularResponses(ResponseBuilder rb, ShardRequest sreq) {
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protected void handleRegularResponses(ResponseBuilder rb, ShardRequest sreq) {
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if ((sreq.purpose & ShardRequest.PURPOSE_GET_TOP_IDS) != 0) {
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mergeIds(rb, sreq);
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}
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@ -775,11 +775,11 @@ public class QueryComponent extends SearchComponent
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}
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}
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private static final EndResultTransformer MAIN_END_RESULT_TRANSFORMER = new MainEndResultTransformer();
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private static final EndResultTransformer SIMPLE_END_RESULT_TRANSFORMER = new SimpleEndResultTransformer();
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protected static final EndResultTransformer MAIN_END_RESULT_TRANSFORMER = new MainEndResultTransformer();
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protected static final EndResultTransformer SIMPLE_END_RESULT_TRANSFORMER = new SimpleEndResultTransformer();
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@SuppressWarnings("unchecked")
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private void groupedFinishStage(final ResponseBuilder rb) {
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protected void groupedFinishStage(final ResponseBuilder rb) {
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// To have same response as non-distributed request.
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GroupingSpecification groupSpec = rb.getGroupingSpec();
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if (rb.mergedTopGroups.isEmpty()) {
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@ -814,24 +814,24 @@ public class QueryComponent extends SearchComponent
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endResultTransformer.transform(combinedMap, rb, solrDocumentSource);
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}
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private void regularFinishStage(ResponseBuilder rb) {
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protected void regularFinishStage(ResponseBuilder rb) {
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// We may not have been able to retrieve all the docs due to an
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// index change. Remove any null documents.
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for (Iterator<SolrDocument> iter = rb._responseDocs.iterator(); iter.hasNext();) {
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for (Iterator<SolrDocument> iter = rb.getResponseDocs().iterator(); iter.hasNext();) {
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if (iter.next() == null) {
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iter.remove();
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rb._responseDocs.setNumFound(rb._responseDocs.getNumFound()-1);
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rb.getResponseDocs().setNumFound(rb.getResponseDocs().getNumFound()-1);
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}
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}
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rb.rsp.addResponse(rb._responseDocs);
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rb.rsp.addResponse(rb.getResponseDocs());
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if (null != rb.getNextCursorMark()) {
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rb.rsp.add(CursorMarkParams.CURSOR_MARK_NEXT,
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rb.getNextCursorMark().getSerializedTotem());
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}
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}
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private void createDistributedStats(ResponseBuilder rb) {
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protected void createDistributedStats(ResponseBuilder rb) {
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StatsCache cache = rb.req.getCore().getStatsCache();
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if ( (rb.getFieldFlags() & SolrIndexSearcher.GET_SCORES)!=0 || rb.getSortSpec().includesScore()) {
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ShardRequest sreq = cache.retrieveStatsRequest(rb);
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@ -841,12 +841,12 @@ public class QueryComponent extends SearchComponent
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}
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}
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private void updateStats(ResponseBuilder rb, ShardRequest sreq) {
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protected void updateStats(ResponseBuilder rb, ShardRequest sreq) {
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StatsCache cache = rb.req.getCore().getStatsCache();
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cache.mergeToGlobalStats(rb.req, sreq.responses);
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}
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private void createMainQuery(ResponseBuilder rb) {
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protected void createMainQuery(ResponseBuilder rb) {
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ShardRequest sreq = new ShardRequest();
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sreq.purpose = ShardRequest.PURPOSE_GET_TOP_IDS;
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@ -931,13 +931,13 @@ public class QueryComponent extends SearchComponent
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rb.addRequest(this, sreq);
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}
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private boolean addFL(StringBuilder fl, String field, boolean additionalAdded) {
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protected boolean addFL(StringBuilder fl, String field, boolean additionalAdded) {
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if (additionalAdded) fl.append(",");
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fl.append(field);
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return true;
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}
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private void mergeIds(ResponseBuilder rb, ShardRequest sreq) {
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protected void mergeIds(ResponseBuilder rb, ShardRequest sreq) {
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List<MergeStrategy> mergeStrategies = rb.getMergeStrategies();
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if(mergeStrategies != null) {
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Collections.sort(mergeStrategies, MergeStrategy.MERGE_COMP);
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@ -1110,7 +1110,7 @@ public class QueryComponent extends SearchComponent
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// again when retrieving stored fields.
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// TODO: use ResponseBuilder (w/ comments) or the request context?
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rb.resultIds = resultIds;
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rb._responseDocs = responseDocs;
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rb.setResponseDocs(responseDocs);
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populateNextCursorMarkFromMergedShards(rb);
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@ -1130,7 +1130,7 @@ public class QueryComponent extends SearchComponent
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* <code>ShardDocs</code> in <code>resultIds</code>, may or may not be
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* part of a Cursor based request (method will NOOP if not needed)
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*/
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private void populateNextCursorMarkFromMergedShards(ResponseBuilder rb) {
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protected void populateNextCursorMarkFromMergedShards(ResponseBuilder rb) {
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final CursorMark lastCursorMark = rb.getCursorMark();
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if (null == lastCursorMark) {
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@ -1172,7 +1172,7 @@ public class QueryComponent extends SearchComponent
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rb.setNextCursorMark(nextCursorMark);
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}
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private NamedList unmarshalSortValues(SortSpec sortSpec,
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protected NamedList unmarshalSortValues(SortSpec sortSpec,
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NamedList sortFieldValues,
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IndexSchema schema) {
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NamedList unmarshalledSortValsPerField = new NamedList();
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@ -1213,7 +1213,7 @@ public class QueryComponent extends SearchComponent
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return unmarshalledSortValsPerField;
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}
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private void createRetrieveDocs(ResponseBuilder rb) {
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protected void createRetrieveDocs(ResponseBuilder rb) {
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// TODO: in a system with nTiers > 2, we could be passed "ids" here
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// unless those requests always go to the final destination shard
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@ -1267,7 +1267,7 @@ public class QueryComponent extends SearchComponent
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}
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private void returnFields(ResponseBuilder rb, ShardRequest sreq) {
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protected void returnFields(ResponseBuilder rb, ShardRequest sreq) {
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// Keep in mind that this could also be a shard in a multi-tiered system.
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// TODO: if a multi-tiered system, it seems like some requests
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// could/should bypass middlemen (like retrieving stored fields)
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@ -1318,7 +1318,7 @@ public class QueryComponent extends SearchComponent
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if (removeKeyField) {
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doc.removeFields(keyFieldName);
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}
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rb._responseDocs.set(sdoc.positionInResponse, doc);
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rb.getResponseDocs().set(sdoc.positionInResponse, doc);
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}
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}
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}
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@ -1344,7 +1344,7 @@ public class QueryComponent extends SearchComponent
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*
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* TODO: when SOLR-5595 is fixed, this wont be needed, as we dont need to recompute sort values here from the comparator
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*/
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private static class FakeScorer extends Scorer {
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protected static class FakeScorer extends Scorer {
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final int docid;
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final float score;
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@ -263,6 +263,10 @@ public class ResponseBuilder
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public void setResponseDocs(SolrDocumentList _responseDocs) {
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this._responseDocs = _responseDocs;
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}
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public SolrDocumentList getResponseDocs() {
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return this._responseDocs;
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}
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public boolean isDebugTrack() {
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return debugTrack;
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@ -16,21 +16,9 @@
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*/
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package org.apache.solr.handler.component;
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import org.apache.lucene.search.FieldComparator;
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import org.apache.lucene.search.FieldDoc;
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import org.apache.lucene.search.IndexSearcher;
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import org.apache.lucene.search.SortField;
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import org.apache.lucene.util.PriorityQueue;
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import org.apache.solr.common.SolrException;
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import org.apache.solr.common.util.NamedList;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.List;
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import static org.apache.solr.common.SolrException.ErrorCode.SERVER_ERROR;
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public class ShardDoc extends FieldDoc {
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public String shard;
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public String shardAddress; // TODO
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@ -44,7 +32,7 @@ public class ShardDoc extends FieldDoc {
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// this is currently the uniqueKeyField but
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// may be replaced with internal docid in a future release.
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NamedList sortFieldValues;
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public NamedList sortFieldValues;
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// sort field values for *all* docs in a particular shard.
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// this doc's values are in position orderInShard
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@ -93,154 +81,4 @@ public class ShardDoc extends FieldDoc {
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+" ,positionInResponse="+positionInResponse
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+" ,sortFieldValues="+sortFieldValues;
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}
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}
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// used by distributed search to merge results.
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class ShardFieldSortedHitQueue extends PriorityQueue<ShardDoc> {
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/** Stores a comparator corresponding to each field being sorted by */
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protected Comparator<ShardDoc>[] comparators;
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/** Stores the sort criteria being used. */
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protected SortField[] fields;
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/** The order of these fieldNames should correspond to the order of sort field values retrieved from the shard */
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protected List<String> fieldNames = new ArrayList<>();
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public ShardFieldSortedHitQueue(SortField[] fields, int size, IndexSearcher searcher) {
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super(size);
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final int n = fields.length;
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//noinspection unchecked
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comparators = new Comparator[n];
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this.fields = new SortField[n];
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for (int i = 0; i < n; ++i) {
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// keep track of the named fields
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SortField.Type type = fields[i].getType();
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if (type!=SortField.Type.SCORE && type!=SortField.Type.DOC) {
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fieldNames.add(fields[i].getField());
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}
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String fieldname = fields[i].getField();
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comparators[i] = getCachedComparator(fields[i], searcher);
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if (fields[i].getType() == SortField.Type.STRING) {
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this.fields[i] = new SortField(fieldname, SortField.Type.STRING,
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fields[i].getReverse());
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} else {
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this.fields[i] = new SortField(fieldname, fields[i].getType(),
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fields[i].getReverse());
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}
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//System.out.println("%%%%%%%%%%%%%%%%%% got "+fields[i].getType() +" for "+ fieldname +" fields[i].getReverse(): "+fields[i].getReverse());
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}
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}
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@Override
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protected boolean lessThan(ShardDoc docA, ShardDoc docB) {
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// If these docs are from the same shard, then the relative order
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// is how they appeared in the response from that shard.
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if (docA.shard == docB.shard) {
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// if docA has a smaller position, it should be "larger" so it
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// comes before docB.
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// This will handle sorting by docid within the same shard
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// comment this out to test comparators.
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return !(docA.orderInShard < docB.orderInShard);
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}
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// run comparators
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final int n = comparators.length;
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int c = 0;
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for (int i = 0; i < n && c == 0; i++) {
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c = (fields[i].getReverse()) ? comparators[i].compare(docB, docA)
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: comparators[i].compare(docA, docB);
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}
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// solve tiebreaks by comparing shards (similar to using docid)
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// smaller docid's beat larger ids, so reverse the natural ordering
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if (c == 0) {
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c = -docA.shard.compareTo(docB.shard);
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}
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return c < 0;
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}
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Comparator<ShardDoc> getCachedComparator(SortField sortField, IndexSearcher searcher) {
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SortField.Type type = sortField.getType();
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if (type == SortField.Type.SCORE) {
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return comparatorScore();
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} else if (type == SortField.Type.REWRITEABLE) {
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try {
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sortField = sortField.rewrite(searcher);
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} catch (IOException e) {
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throw new SolrException(SERVER_ERROR, "Exception rewriting sort field " + sortField, e);
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}
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}
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return comparatorFieldComparator(sortField);
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}
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abstract class ShardComparator implements Comparator<ShardDoc> {
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final SortField sortField;
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final String fieldName;
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final int fieldNum;
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public ShardComparator(SortField sortField) {
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this.sortField = sortField;
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this.fieldName = sortField.getField();
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int fieldNum = 0;
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for (int i=0; i<fieldNames.size(); i++) {
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if (fieldNames.get(i).equals(fieldName)) {
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fieldNum = i;
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break;
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}
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}
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this.fieldNum = fieldNum;
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}
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Object sortVal(ShardDoc shardDoc) {
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assert(shardDoc.sortFieldValues.getName(fieldNum).equals(fieldName));
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List lst = (List)shardDoc.sortFieldValues.getVal(fieldNum);
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return lst.get(shardDoc.orderInShard);
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}
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}
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static Comparator<ShardDoc> comparatorScore() {
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return new Comparator<ShardDoc>() {
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@Override
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public final int compare(final ShardDoc o1, final ShardDoc o2) {
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final float f1 = o1.score;
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final float f2 = o2.score;
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if (f1 < f2)
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return -1;
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if (f1 > f2)
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return 1;
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return 0;
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}
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};
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}
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Comparator<ShardDoc> comparatorFieldComparator(SortField sortField) {
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final FieldComparator fieldComparator;
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try {
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fieldComparator = sortField.getComparator(0, 0);
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} catch (IOException e) {
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throw new RuntimeException("Unable to get FieldComparator for sortField " + sortField);
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}
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return new ShardComparator(sortField) {
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// Since the PriorityQueue keeps the biggest elements by default,
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// we need to reverse the field compare ordering so that the
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// smallest elements are kept instead of the largest... hence
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// the negative sign.
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@Override
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public int compare(final ShardDoc o1, final ShardDoc o2) {
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//noinspection unchecked
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return -fieldComparator.compareValues(sortVal(o1), sortVal(o2));
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}
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};
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}
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}
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}
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@ -0,0 +1,179 @@
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package org.apache.solr.handler.component;
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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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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.List;
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import org.apache.lucene.search.FieldComparator;
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import org.apache.lucene.search.IndexSearcher;
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import org.apache.lucene.search.SortField;
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import org.apache.lucene.util.PriorityQueue;
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import org.apache.solr.common.SolrException;
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import static org.apache.solr.common.SolrException.ErrorCode.SERVER_ERROR;
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// used by distributed search to merge results.
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public class ShardFieldSortedHitQueue extends PriorityQueue<ShardDoc> {
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/** Stores a comparator corresponding to each field being sorted by */
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protected Comparator<ShardDoc>[] comparators;
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/** Stores the sort criteria being used. */
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protected SortField[] fields;
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/** The order of these fieldNames should correspond to the order of sort field values retrieved from the shard */
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protected List<String> fieldNames = new ArrayList<>();
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public ShardFieldSortedHitQueue(SortField[] fields, int size, IndexSearcher searcher) {
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super(size);
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final int n = fields.length;
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//noinspection unchecked
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comparators = new Comparator[n];
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this.fields = new SortField[n];
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||||
for (int i = 0; i < n; ++i) {
|
||||
|
||||
// keep track of the named fields
|
||||
SortField.Type type = fields[i].getType();
|
||||
if (type!=SortField.Type.SCORE && type!=SortField.Type.DOC) {
|
||||
fieldNames.add(fields[i].getField());
|
||||
}
|
||||
|
||||
String fieldname = fields[i].getField();
|
||||
comparators[i] = getCachedComparator(fields[i], searcher);
|
||||
|
||||
if (fields[i].getType() == SortField.Type.STRING) {
|
||||
this.fields[i] = new SortField(fieldname, SortField.Type.STRING,
|
||||
fields[i].getReverse());
|
||||
} else {
|
||||
this.fields[i] = new SortField(fieldname, fields[i].getType(),
|
||||
fields[i].getReverse());
|
||||
}
|
||||
|
||||
//System.out.println("%%%%%%%%%%%%%%%%%% got "+fields[i].getType() +" for "+ fieldname +" fields[i].getReverse(): "+fields[i].getReverse());
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
protected boolean lessThan(ShardDoc docA, ShardDoc docB) {
|
||||
// If these docs are from the same shard, then the relative order
|
||||
// is how they appeared in the response from that shard.
|
||||
if (docA.shard == docB.shard) {
|
||||
// if docA has a smaller position, it should be "larger" so it
|
||||
// comes before docB.
|
||||
// This will handle sorting by docid within the same shard
|
||||
|
||||
// comment this out to test comparators.
|
||||
return !(docA.orderInShard < docB.orderInShard);
|
||||
}
|
||||
|
||||
|
||||
// run comparators
|
||||
final int n = comparators.length;
|
||||
int c = 0;
|
||||
for (int i = 0; i < n && c == 0; i++) {
|
||||
c = (fields[i].getReverse()) ? comparators[i].compare(docB, docA)
|
||||
: comparators[i].compare(docA, docB);
|
||||
}
|
||||
|
||||
// solve tiebreaks by comparing shards (similar to using docid)
|
||||
// smaller docid's beat larger ids, so reverse the natural ordering
|
||||
if (c == 0) {
|
||||
c = -docA.shard.compareTo(docB.shard);
|
||||
}
|
||||
|
||||
return c < 0;
|
||||
}
|
||||
|
||||
Comparator<ShardDoc> getCachedComparator(SortField sortField, IndexSearcher searcher) {
|
||||
SortField.Type type = sortField.getType();
|
||||
if (type == SortField.Type.SCORE) {
|
||||
return comparatorScore();
|
||||
} else if (type == SortField.Type.REWRITEABLE) {
|
||||
try {
|
||||
sortField = sortField.rewrite(searcher);
|
||||
} catch (IOException e) {
|
||||
throw new SolrException(SERVER_ERROR, "Exception rewriting sort field " + sortField, e);
|
||||
}
|
||||
}
|
||||
return comparatorFieldComparator(sortField);
|
||||
}
|
||||
|
||||
abstract class ShardComparator implements Comparator<ShardDoc> {
|
||||
final SortField sortField;
|
||||
final String fieldName;
|
||||
final int fieldNum;
|
||||
|
||||
public ShardComparator(SortField sortField) {
|
||||
this.sortField = sortField;
|
||||
this.fieldName = sortField.getField();
|
||||
int fieldNum = 0;
|
||||
for (int i=0; i<fieldNames.size(); i++) {
|
||||
if (fieldNames.get(i).equals(fieldName)) {
|
||||
fieldNum = i;
|
||||
break;
|
||||
}
|
||||
}
|
||||
this.fieldNum = fieldNum;
|
||||
}
|
||||
|
||||
Object sortVal(ShardDoc shardDoc) {
|
||||
assert(shardDoc.sortFieldValues.getName(fieldNum).equals(fieldName));
|
||||
List lst = (List)shardDoc.sortFieldValues.getVal(fieldNum);
|
||||
return lst.get(shardDoc.orderInShard);
|
||||
}
|
||||
}
|
||||
|
||||
static Comparator<ShardDoc> comparatorScore() {
|
||||
return new Comparator<ShardDoc>() {
|
||||
@Override
|
||||
public final int compare(final ShardDoc o1, final ShardDoc o2) {
|
||||
final float f1 = o1.score;
|
||||
final float f2 = o2.score;
|
||||
if (f1 < f2)
|
||||
return -1;
|
||||
if (f1 > f2)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
Comparator<ShardDoc> comparatorFieldComparator(SortField sortField) {
|
||||
final FieldComparator fieldComparator;
|
||||
try {
|
||||
fieldComparator = sortField.getComparator(0, 0);
|
||||
} catch (IOException e) {
|
||||
throw new RuntimeException("Unable to get FieldComparator for sortField " + sortField);
|
||||
}
|
||||
|
||||
return new ShardComparator(sortField) {
|
||||
// Since the PriorityQueue keeps the biggest elements by default,
|
||||
// we need to reverse the field compare ordering so that the
|
||||
// smallest elements are kept instead of the largest... hence
|
||||
// the negative sign.
|
||||
@Override
|
||||
public int compare(final ShardDoc o1, final ShardDoc o2) {
|
||||
//noinspection unchecked
|
||||
return -fieldComparator.compareValues(sortVal(o1), sortVal(o2));
|
||||
}
|
||||
};
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue