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Merge pull request #19536 from areek/enhancement/completion_suggester_documents 

Add support for returning documents with completion suggester
This commit is contained in:
Areek Zillur 2016-08-05 18:55:08 -04:00 committed by GitHub
parent fbbb633d81 fee013c07c
commit 469eb2546d
20 changed files with 918 additions and 206 deletions
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16
core/src/main/java/org/elasticsearch/action/search/AbstractSearchAsyncAction.java
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@ -46,6 +46,7 @@ import org.elasticsearch.search.internal.InternalSearchResponse;
import org.elasticsearch.search.internal.ShardSearchTransportRequest;
import org.elasticsearch.search.query.QuerySearchResult;
import org.elasticsearch.search.query.QuerySearchResultProvider;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.threadpool.ThreadPool;
import java.util.List;
@ -74,7 +75,7 @@ abstract class AbstractSearchAsyncAction<FirstResult extends SearchPhaseResult>
protected final AtomicArray<FirstResult> firstResults;
private volatile AtomicArray<ShardSearchFailure> shardFailures;
private final Object shardFailuresMutex = new Object();
protected volatile ScoreDoc[] sortedShardList;
protected volatile ScoreDoc[] sortedShardDocs;
protected AbstractSearchAsyncAction(ESLogger logger, SearchTransportService searchTransportService, ClusterService clusterService,
IndexNameExpressionResolver indexNameExpressionResolver,
@ -321,8 +322,11 @@ abstract class AbstractSearchAsyncAction<FirstResult extends SearchPhaseResult>
// we only release search context that we did not fetch from if we are not scrolling
if (request.scroll() == null) {
for (AtomicArray.Entry<? extends QuerySearchResultProvider> entry : queryResults.asList()) {
final TopDocs topDocs = entry.value.queryResult().queryResult().topDocs();
if (topDocs != null && topDocs.scoreDocs.length > 0 // the shard had matches
QuerySearchResult queryResult = entry.value.queryResult().queryResult();
final TopDocs topDocs = queryResult.topDocs();
final Suggest suggest = queryResult.suggest();
if (((topDocs != null && topDocs.scoreDocs.length > 0) // the shard had matches
||suggest != null && suggest.hasScoreDocs()) // or had suggest docs
&& docIdsToLoad.get(entry.index) == null) { // but none of them made it to the global top docs
try {
DiscoveryNode node = nodes.get(entry.value.queryResult().shardTarget().nodeId());
@ -343,12 +347,8 @@ abstract class AbstractSearchAsyncAction<FirstResult extends SearchPhaseResult>
protected ShardFetchSearchRequest createFetchRequest(QuerySearchResult queryResult, AtomicArray.Entry<IntArrayList> entry,
ScoreDoc[] lastEmittedDocPerShard) {
if (lastEmittedDocPerShard != null) {
ScoreDoc lastEmittedDoc = lastEmittedDocPerShard[entry.index];
final ScoreDoc lastEmittedDoc = (lastEmittedDocPerShard != null) ? lastEmittedDocPerShard[entry.index] : null;
return new ShardFetchSearchRequest(request, queryResult.id(), entry.value, lastEmittedDoc);
} else {
return new ShardFetchSearchRequest(request, queryResult.id(), entry.value);
}
}
protected abstract void sendExecuteFirstPhase(DiscoveryNode node, ShardSearchTransportRequest request,

4
core/src/main/java/org/elasticsearch/action/search/SearchDfsQueryAndFetchAsyncAction.java
View File

@ -118,8 +118,8 @@ class SearchDfsQueryAndFetchAsyncAction extends AbstractSearchAsyncAction<DfsSea
threadPool.executor(ThreadPool.Names.SEARCH).execute(new ActionRunnable<SearchResponse>(listener) {
@Override
public void doRun() throws IOException {
sortedShardList = searchPhaseController.sortDocs(true, queryFetchResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, queryFetchResults,
sortedShardDocs = searchPhaseController.sortDocs(true, queryFetchResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(true, sortedShardDocs, queryFetchResults,
queryFetchResults);
String scrollId = null;
if (request.scroll() != null) {

19
core/src/main/java/org/elasticsearch/action/search/SearchDfsQueryThenFetchAsyncAction.java
View File

@ -135,18 +135,17 @@ class SearchDfsQueryThenFetchAsyncAction extends AbstractSearchAsyncAction<DfsSe
}
void innerExecuteFetchPhase() throws Exception {
boolean useScroll = request.scroll() != null;
sortedShardList = searchPhaseController.sortDocs(useScroll, queryResults);
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardList);
final boolean isScrollRequest = request.scroll() != null;
sortedShardDocs = searchPhaseController.sortDocs(isScrollRequest, queryResults);
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardDocs);
if (docIdsToLoad.asList().isEmpty()) {
finishHim();
return;
}
final ScoreDoc[] lastEmittedDocPerShard = searchPhaseController.getLastEmittedDocPerShard(
request, sortedShardList, firstResults.length()
);
final ScoreDoc[] lastEmittedDocPerShard = (request.scroll() != null) ?
searchPhaseController.getLastEmittedDocPerShard(queryResults.asList(), sortedShardDocs, firstResults.length()) : null;
final AtomicInteger counter = new AtomicInteger(docIdsToLoad.asList().size());
for (final AtomicArray.Entry<IntArrayList> entry : docIdsToLoad.asList()) {
QuerySearchResult queryResult = queryResults.get(entry.index);
@ -196,12 +195,10 @@ class SearchDfsQueryThenFetchAsyncAction extends AbstractSearchAsyncAction<DfsSe
threadPool.executor(ThreadPool.Names.SEARCH).execute(new ActionRunnable<SearchResponse>(listener) {
@Override
public void doRun() throws IOException {
final InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, queryResults,
final boolean isScrollRequest = request.scroll() != null;
final InternalSearchResponse internalResponse = searchPhaseController.merge(isScrollRequest, sortedShardDocs, queryResults,
fetchResults);
String scrollId = null;
if (request.scroll() != null) {
scrollId = TransportSearchHelper.buildScrollId(request.searchType(), firstResults);
}
String scrollId = isScrollRequest ? TransportSearchHelper.buildScrollId(request.searchType(), firstResults) : null;
listener.onResponse(new SearchResponse(internalResponse, scrollId, expectedSuccessfulOps, successfulOps.get(),
buildTookInMillis(), buildShardFailures()));
releaseIrrelevantSearchContexts(queryResults, docIdsToLoad);

11
core/src/main/java/org/elasticsearch/action/search/SearchQueryAndFetchAsyncAction.java
View File

@ -60,14 +60,11 @@ class SearchQueryAndFetchAsyncAction extends AbstractSearchAsyncAction<QueryFetc
threadPool.executor(ThreadPool.Names.SEARCH).execute(new ActionRunnable<SearchResponse>(listener) {
@Override
public void doRun() throws IOException {
boolean useScroll = request.scroll() != null;
sortedShardList = searchPhaseController.sortDocs(useScroll, firstResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, firstResults,
final boolean isScrollRequest = request.scroll() != null;
sortedShardDocs = searchPhaseController.sortDocs(isScrollRequest, firstResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(isScrollRequest, sortedShardDocs, firstResults,
firstResults);
String scrollId = null;
if (request.scroll() != null) {
scrollId = TransportSearchHelper.buildScrollId(request.searchType(), firstResults);
}
String scrollId = isScrollRequest ? TransportSearchHelper.buildScrollId(request.searchType(), firstResults) : null;
listener.onResponse(new SearchResponse(internalResponse, scrollId, expectedSuccessfulOps, successfulOps.get(),
buildTookInMillis(), buildShardFailures()));
}

19
core/src/main/java/org/elasticsearch/action/search/SearchQueryThenFetchAsyncAction.java
View File

@ -68,18 +68,17 @@ class SearchQueryThenFetchAsyncAction extends AbstractSearchAsyncAction<QuerySea
@Override
protected void moveToSecondPhase() throws Exception {
boolean useScroll = request.scroll() != null;
sortedShardList = searchPhaseController.sortDocs(useScroll, firstResults);
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardList);
final boolean isScrollRequest = request.scroll() != null;
sortedShardDocs = searchPhaseController.sortDocs(isScrollRequest, firstResults);
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardDocs);
if (docIdsToLoad.asList().isEmpty()) {
finishHim();
return;
}
final ScoreDoc[] lastEmittedDocPerShard = searchPhaseController.getLastEmittedDocPerShard(
request, sortedShardList, firstResults.length()
);
final ScoreDoc[] lastEmittedDocPerShard = isScrollRequest ?
searchPhaseController.getLastEmittedDocPerShard(firstResults.asList(), sortedShardDocs, firstResults.length()) : null;
final AtomicInteger counter = new AtomicInteger(docIdsToLoad.asList().size());
for (AtomicArray.Entry<IntArrayList> entry : docIdsToLoad.asList()) {
QuerySearchResultProvider queryResult = firstResults.get(entry.index);
@ -129,12 +128,10 @@ class SearchQueryThenFetchAsyncAction extends AbstractSearchAsyncAction<QuerySea
threadPool.executor(ThreadPool.Names.SEARCH).execute(new ActionRunnable<SearchResponse>(listener) {
@Override
public void doRun() throws IOException {
final InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, firstResults,
final boolean isScrollRequest = request.scroll() != null;
final InternalSearchResponse internalResponse = searchPhaseController.merge(isScrollRequest, sortedShardDocs, firstResults,
fetchResults);
String scrollId = null;
if (request.scroll() != null) {
scrollId = TransportSearchHelper.buildScrollId(request.searchType(), firstResults);
}
String scrollId = isScrollRequest ? TransportSearchHelper.buildScrollId(request.searchType(), firstResults) : null;
listener.onResponse(new SearchResponse(internalResponse, scrollId, expectedSuccessfulOps,
successfulOps.get(), buildTookInMillis(), buildShardFailures()));
releaseIrrelevantSearchContexts(firstResults, docIdsToLoad);

4
core/src/main/java/org/elasticsearch/action/search/SearchScrollQueryAndFetchAsyncAction.java
View File

@ -168,8 +168,8 @@ class SearchScrollQueryAndFetchAsyncAction extends AbstractAsyncAction {
}
private void innerFinishHim() throws Exception {
ScoreDoc[] sortedShardList = searchPhaseController.sortDocs(true, queryFetchResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, queryFetchResults,
ScoreDoc[] sortedShardDocs = searchPhaseController.sortDocs(true, queryFetchResults);
final InternalSearchResponse internalResponse = searchPhaseController.merge(true, sortedShardDocs, queryFetchResults,
queryFetchResults);
String scrollId = null;
if (request.scroll() != null) {

11
core/src/main/java/org/elasticsearch/action/search/SearchScrollQueryThenFetchAsyncAction.java
View File

@ -53,7 +53,7 @@ class SearchScrollQueryThenFetchAsyncAction extends AbstractAsyncAction {
private volatile AtomicArray<ShardSearchFailure> shardFailures;
final AtomicArray<QuerySearchResult> queryResults;
final AtomicArray<FetchSearchResult> fetchResults;
private volatile ScoreDoc[] sortedShardList;
private volatile ScoreDoc[] sortedShardDocs;
private final AtomicInteger successfulOps;
SearchScrollQueryThenFetchAsyncAction(ESLogger logger, ClusterService clusterService,
@ -165,9 +165,9 @@ class SearchScrollQueryThenFetchAsyncAction extends AbstractAsyncAction {
}
private void executeFetchPhase() throws Exception {
sortedShardList = searchPhaseController.sortDocs(true, queryResults);
sortedShardDocs = searchPhaseController.sortDocs(true, queryResults);
AtomicArray<IntArrayList> docIdsToLoad = new AtomicArray<>(queryResults.length());
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardList);
searchPhaseController.fillDocIdsToLoad(docIdsToLoad, sortedShardDocs);
if (docIdsToLoad.asList().isEmpty()) {
finishHim();
@ -175,7 +175,8 @@ class SearchScrollQueryThenFetchAsyncAction extends AbstractAsyncAction {
}
final ScoreDoc[] lastEmittedDocPerShard = searchPhaseController.getLastEmittedDocPerShard(sortedShardList, queryResults.length());
final ScoreDoc[] lastEmittedDocPerShard = searchPhaseController.getLastEmittedDocPerShard(queryResults.asList(),
sortedShardDocs, queryResults.length());
final AtomicInteger counter = new AtomicInteger(docIdsToLoad.asList().size());
for (final AtomicArray.Entry<IntArrayList> entry : docIdsToLoad.asList()) {
IntArrayList docIds = entry.value;
@ -216,7 +217,7 @@ class SearchScrollQueryThenFetchAsyncAction extends AbstractAsyncAction {
}
private void innerFinishHim() {
InternalSearchResponse internalResponse = searchPhaseController.merge(sortedShardList, queryResults, fetchResults);
InternalSearchResponse internalResponse = searchPhaseController.merge(true, sortedShardDocs, queryResults, fetchResults);
String scrollId = null;
if (request.scroll() != null) {
scrollId = request.scrollId();

57
core/src/main/java/org/elasticsearch/search/SearchService.java
View File

@ -21,6 +21,7 @@ package org.elasticsearch.search;
import com.carrotsearch.hppc.ObjectFloatHashMap;
import org.apache.lucene.search.FieldDoc;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
import org.elasticsearch.ElasticsearchException;
import org.elasticsearch.ExceptionsHelper;
@ -87,6 +88,8 @@ import org.elasticsearch.search.rescore.RescoreBuilder;
import org.elasticsearch.search.searchafter.SearchAfterBuilder;
import org.elasticsearch.search.sort.SortAndFormats;
import org.elasticsearch.search.sort.SortBuilder;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.search.suggest.completion.CompletionSuggestion;
import org.elasticsearch.threadpool.ThreadPool;
import org.elasticsearch.threadpool.ThreadPool.Cancellable;
import org.elasticsearch.threadpool.ThreadPool.Names;
@ -94,6 +97,7 @@ import org.elasticsearch.threadpool.ThreadPool.Names;
import java.io.IOException;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ExecutionException;
@ -265,7 +269,7 @@ public class SearchService extends AbstractLifecycleComponent implements IndexEv
loadOrExecuteQueryPhase(request, context);
if (context.queryResult().topDocs().scoreDocs.length == 0 && context.scrollContext() == null) {
if (hasHits(context.queryResult()) == false && context.scrollContext() == null) {
freeContext(context.id());
} else {
contextProcessedSuccessfully(context);
@ -320,7 +324,7 @@ public class SearchService extends AbstractLifecycleComponent implements IndexEv
operationListener.onPreQueryPhase(context);
long time = System.nanoTime();
queryPhase.execute(context);
if (context.queryResult().topDocs().scoreDocs.length == 0 && context.scrollContext() == null) {
if (hasHits(context.queryResult()) == false && context.scrollContext() == null) {
// no hits, we can release the context since there will be no fetch phase
freeContext(context.id());
} else {
@ -811,40 +815,55 @@ public class SearchService extends AbstractLifecycleComponent implements IndexEv
}
}
private static final int[] EMPTY_DOC_IDS = new int[0];
/**
* Shortcut ids to load, we load only "from" and up to "size". The phase controller
* handles this as well since the result is always size * shards for Q_A_F
*/
private void shortcutDocIdsToLoad(SearchContext context) {
final int[] docIdsToLoad;
int docsOffset = 0;
final Suggest suggest = context.queryResult().suggest();
int numSuggestDocs = 0;
final List<CompletionSuggestion> completionSuggestions;
if (suggest != null && suggest.hasScoreDocs()) {
completionSuggestions = suggest.filter(CompletionSuggestion.class);
for (CompletionSuggestion completionSuggestion : completionSuggestions) {
numSuggestDocs += completionSuggestion.getOptions().size();
}
} else {
completionSuggestions = Collections.emptyList();
}
if (context.request().scroll() != null) {
TopDocs topDocs = context.queryResult().topDocs();
int[] docIdsToLoad = new int[topDocs.scoreDocs.length];
docIdsToLoad = new int[topDocs.scoreDocs.length + numSuggestDocs];
for (int i = 0; i < topDocs.scoreDocs.length; i++) {
docIdsToLoad[i] = topDocs.scoreDocs[i].doc;
docIdsToLoad[docsOffset++] = topDocs.scoreDocs[i].doc;
}
context.docIdsToLoad(docIdsToLoad, 0, docIdsToLoad.length);
} else {
TopDocs topDocs = context.queryResult().topDocs();
if (topDocs.scoreDocs.length < context.from()) {
// no more docs...
context.docIdsToLoad(EMPTY_DOC_IDS, 0, 0);
return;
}
int totalSize = context.from() + context.size();
int[] docIdsToLoad = new int[Math.min(topDocs.scoreDocs.length - context.from(), context.size())];
int counter = 0;
for (int i = context.from(); i < totalSize; i++) {
if (i < topDocs.scoreDocs.length) {
docIdsToLoad[counter] = topDocs.scoreDocs[i].doc;
docIdsToLoad = new int[numSuggestDocs];
} else {
break;
int totalSize = context.from() + context.size();
docIdsToLoad = new int[Math.min(topDocs.scoreDocs.length - context.from(), context.size()) +
numSuggestDocs];
for (int i = context.from(); i < Math.min(totalSize, topDocs.scoreDocs.length); i++) {
docIdsToLoad[docsOffset++] = topDocs.scoreDocs[i].doc;
}
counter++;
}
context.docIdsToLoad(docIdsToLoad, 0, counter);
}
for (CompletionSuggestion completionSuggestion : completionSuggestions) {
for (CompletionSuggestion.Entry.Option option : completionSuggestion.getOptions()) {
docIdsToLoad[docsOffset++] = option.getDoc().doc;
}
}
context.docIdsToLoad(docIdsToLoad, 0, docIdsToLoad.length);
}
private static boolean hasHits(final QuerySearchResult searchResult) {
return searchResult.topDocs().scoreDocs.length > 0 ||
(searchResult.suggest() != null && searchResult.suggest().hasScoreDocs());
}
private void processScroll(InternalScrollSearchRequest request, SearchContext context) {

232
core/src/main/java/org/elasticsearch/search/controller/SearchPhaseController.java
View File

@ -30,7 +30,6 @@ import org.apache.lucene.search.SortField;
import org.apache.lucene.search.TermStatistics;
import org.apache.lucene.search.TopDocs;
import org.apache.lucene.search.TopFieldDocs;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.cluster.service.ClusterService;
import org.elasticsearch.common.collect.HppcMaps;
import org.elasticsearch.common.component.AbstractComponent;
@ -53,18 +52,22 @@ import org.elasticsearch.search.internal.InternalSearchHits;
import org.elasticsearch.search.internal.InternalSearchResponse;
import org.elasticsearch.search.profile.ProfileShardResult;
import org.elasticsearch.search.profile.SearchProfileShardResults;
import org.elasticsearch.search.profile.query.QueryProfileShardResult;
import org.elasticsearch.search.query.QuerySearchResult;
import org.elasticsearch.search.query.QuerySearchResultProvider;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.search.suggest.Suggest.Suggestion;
import org.elasticsearch.search.suggest.Suggest.Suggestion.Entry;
import org.elasticsearch.search.suggest.completion.CompletionSuggestion;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;
@ -154,6 +157,10 @@ public class SearchPhaseController extends AbstractComponent {
}
/**
* Returns a score doc array of top N search docs across all shards, followed by top suggest docs for each
* named completion suggestion across all shards. If more than one named completion suggestion is specified in the
* request, the suggest docs for a named suggestion are ordered by the suggestion name.
*
* @param ignoreFrom Whether to ignore the from and sort all hits in each shard result.
* Enabled only for scroll search, because that only retrieves hits of length 'size' in the query phase.
* @param resultsArr Shard result holder
@ -191,19 +198,40 @@ public class SearchPhaseController extends AbstractComponent {
offset = 0;
}
ScoreDoc[] scoreDocs = result.topDocs().scoreDocs;
if (scoreDocs.length == 0 || scoreDocs.length < offset) {
return EMPTY_DOCS;
ScoreDoc[] docs;
int numSuggestDocs = 0;
final Suggest suggest = result.queryResult().suggest();
final List<CompletionSuggestion> completionSuggestions;
if (suggest != null) {
completionSuggestions = suggest.filter(CompletionSuggestion.class);
for (CompletionSuggestion suggestion : completionSuggestions) {
numSuggestDocs += suggestion.getOptions().size();
}
} else {
completionSuggestions = Collections.emptyList();
}
int docsOffset = 0;
if (scoreDocs.length == 0 || scoreDocs.length < offset) {
docs = new ScoreDoc[numSuggestDocs];
} else {
int resultDocsSize = result.size();
if ((scoreDocs.length - offset) < resultDocsSize) {
resultDocsSize = scoreDocs.length - offset;
}
ScoreDoc[] docs = new ScoreDoc[resultDocsSize];
docs = new ScoreDoc[resultDocsSize + numSuggestDocs];
for (int i = 0; i < resultDocsSize; i++) {
ScoreDoc scoreDoc = scoreDocs[offset + i];
scoreDoc.shardIndex = shardIndex;
docs[i] = scoreDoc;
docsOffset++;
}
}
for (CompletionSuggestion suggestion: completionSuggestions) {
for (CompletionSuggestion.Entry.Option option : suggestion.getOptions()) {
ScoreDoc doc = option.getDoc();
doc.shardIndex = shardIndex;
docs[docsOffset++] = doc;
}
}
return docs;
}
@ -213,13 +241,7 @@ public class SearchPhaseController extends AbstractComponent {
Arrays.sort(sortedResults, QUERY_RESULT_ORDERING);
QuerySearchResultProvider firstResult = sortedResults[0].value;
int topN = firstResult.queryResult().size();
if (firstResult.includeFetch()) {
// if we did both query and fetch on the same go, we have fetched all the docs from each shards already, use them...
// this is also important since we shortcut and fetch only docs from "from" and up to "size"
topN *= sortedResults.length;
}
int topN = topN(results);
int from = firstResult.queryResult().from();
if (ignoreFrom) {
from = 0;
@ -258,40 +280,86 @@ public class SearchPhaseController extends AbstractComponent {
}
mergedTopDocs = TopDocs.merge(from, topN, shardTopDocs);
}
return mergedTopDocs.scoreDocs;
ScoreDoc[] scoreDocs = mergedTopDocs.scoreDocs;
final Map<String, List<Suggestion<CompletionSuggestion.Entry>>> groupedCompletionSuggestions = new HashMap<>();
// group suggestions and assign shard index
for (AtomicArray.Entry<? extends QuerySearchResultProvider> sortedResult : sortedResults) {
Suggest shardSuggest = sortedResult.value.queryResult().suggest();
if (shardSuggest != null) {
for (CompletionSuggestion suggestion : shardSuggest.filter(CompletionSuggestion.class)) {
suggestion.setShardIndex(sortedResult.index);
List<Suggestion<CompletionSuggestion.Entry>> suggestions =
groupedCompletionSuggestions.computeIfAbsent(suggestion.getName(), s -> new ArrayList<>());
suggestions.add(suggestion);
}
}
}
if (groupedCompletionSuggestions.isEmpty() == false) {
int numSuggestDocs = 0;
List<Suggestion<? extends Entry<? extends Entry.Option>>> completionSuggestions =
new ArrayList<>(groupedCompletionSuggestions.size());
for (List<Suggestion<CompletionSuggestion.Entry>> groupedSuggestions : groupedCompletionSuggestions.values()) {
final CompletionSuggestion completionSuggestion = CompletionSuggestion.reduceTo(groupedSuggestions);
assert completionSuggestion != null;
numSuggestDocs += completionSuggestion.getOptions().size();
completionSuggestions.add(completionSuggestion);
}
scoreDocs = new ScoreDoc[mergedTopDocs.scoreDocs.length + numSuggestDocs];
System.arraycopy(mergedTopDocs.scoreDocs, 0, scoreDocs, 0, mergedTopDocs.scoreDocs.length);
int offset = mergedTopDocs.scoreDocs.length;
Suggest suggestions = new Suggest(completionSuggestions);
for (CompletionSuggestion completionSuggestion : suggestions.filter(CompletionSuggestion.class)) {
for (CompletionSuggestion.Entry.Option option : completionSuggestion.getOptions()) {
scoreDocs[offset++] = option.getDoc();
}
}
}
return scoreDocs;
}
public ScoreDoc[] getLastEmittedDocPerShard(SearchRequest request, ScoreDoc[] sortedShardList, int numShards) {
if (request.scroll() != null) {
return getLastEmittedDocPerShard(sortedShardList, numShards);
} else {
return null;
}
}
public ScoreDoc[] getLastEmittedDocPerShard(ScoreDoc[] sortedShardList, int numShards) {
public ScoreDoc[] getLastEmittedDocPerShard(List<? extends AtomicArray.Entry<? extends QuerySearchResultProvider>> queryResults,
ScoreDoc[] sortedScoreDocs, int numShards) {
ScoreDoc[] lastEmittedDocPerShard = new ScoreDoc[numShards];
for (ScoreDoc scoreDoc : sortedShardList) {
if (queryResults.isEmpty() == false) {
long fetchHits = 0;
for (AtomicArray.Entry<? extends QuerySearchResultProvider> queryResult : queryResults) {
fetchHits += queryResult.value.queryResult().topDocs().scoreDocs.length;
}
// from is always zero as when we use scroll, we ignore from
long size = Math.min(fetchHits, topN(queryResults));
for (int sortedDocsIndex = 0; sortedDocsIndex < size; sortedDocsIndex++) {
ScoreDoc scoreDoc = sortedScoreDocs[sortedDocsIndex];
lastEmittedDocPerShard[scoreDoc.shardIndex] = scoreDoc;
}
}
return lastEmittedDocPerShard;
}
/**
* Builds an array, with potential null elements, with docs to load.
*/
public void fillDocIdsToLoad(AtomicArray<IntArrayList> docsIdsToLoad, ScoreDoc[] shardDocs) {
public void fillDocIdsToLoad(AtomicArray<IntArrayList> docIdsToLoad, ScoreDoc[] shardDocs) {
for (ScoreDoc shardDoc : shardDocs) {
IntArrayList list = docsIdsToLoad.get(shardDoc.shardIndex);
if (list == null) {
list = new IntArrayList(); // can't be shared!, uses unsafe on it later on
docsIdsToLoad.set(shardDoc.shardIndex, list);
IntArrayList shardDocIdsToLoad = docIdsToLoad.get(shardDoc.shardIndex);
if (shardDocIdsToLoad == null) {
shardDocIdsToLoad = new IntArrayList(); // can't be shared!, uses unsafe on it later on
docIdsToLoad.set(shardDoc.shardIndex, shardDocIdsToLoad);
}
list.add(shardDoc.doc);
shardDocIdsToLoad.add(shardDoc.doc);
}
}
public InternalSearchResponse merge(ScoreDoc[] sortedDocs, AtomicArray<? extends QuerySearchResultProvider> queryResultsArr,
/**
* Enriches search hits and completion suggestion hits from <code>sortedDocs</code> using <code>fetchResultsArr</code>,
* merges suggestions, aggregations and profile results
*
* Expects sortedDocs to have top search docs across all shards, optionally followed by top suggest docs for each named
* completion suggestion ordered by suggestion name
*/
public InternalSearchResponse merge(boolean ignoreFrom, ScoreDoc[] sortedDocs,
AtomicArray<? extends QuerySearchResultProvider> queryResultsArr,
AtomicArray<? extends FetchSearchResultProvider> fetchResultsArr) {
List<? extends AtomicArray.Entry<? extends QuerySearchResultProvider>> queryResults = queryResultsArr.asList();
@ -317,6 +385,7 @@ public class SearchPhaseController extends AbstractComponent {
// count the total (we use the query result provider here, since we might not get any hits (we scrolled past them))
long totalHits = 0;
long fetchHits = 0;
float maxScore = Float.NEGATIVE_INFINITY;
boolean timedOut = false;
Boolean terminatedEarly = null;
@ -333,6 +402,7 @@ public class SearchPhaseController extends AbstractComponent {
}
}
totalHits += result.topDocs().totalHits;
fetchHits += result.topDocs().scoreDocs.length;
if (!Float.isNaN(result.topDocs().getMaxScore())) {
maxScore = Math.max(maxScore, result.topDocs().getMaxScore());
}
@ -345,11 +415,13 @@ public class SearchPhaseController extends AbstractComponent {
for (AtomicArray.Entry<? extends FetchSearchResultProvider> entry : fetchResults) {
entry.value.fetchResult().initCounter();
}
int from = ignoreFrom ? 0 : firstResult.queryResult().from();
int numSearchHits = (int) Math.min(fetchHits - from, topN(queryResults));
// merge hits
List<InternalSearchHit> hits = new ArrayList<>();
if (!fetchResults.isEmpty()) {
for (ScoreDoc shardDoc : sortedDocs) {
for (int i = 0; i < numSearchHits; i++) {
ScoreDoc shardDoc = sortedDocs[i];
FetchSearchResultProvider fetchResultProvider = fetchResultsArr.get(shardDoc.shardIndex);
if (fetchResultProvider == null) {
continue;
@ -360,7 +432,6 @@ public class SearchPhaseController extends AbstractComponent {
InternalSearchHit searchHit = fetchResult.hits().internalHits()[index];
searchHit.score(shardDoc.score);
searchHit.shard(fetchResult.shardTarget());
if (sorted) {
FieldDoc fieldDoc = (FieldDoc) shardDoc;
searchHit.sortValues(fieldDoc.fields, firstResult.sortValueFormats());
@ -368,7 +439,6 @@ public class SearchPhaseController extends AbstractComponent {
searchHit.score(((Number) fieldDoc.fields[sortScoreIndex]).floatValue());
}
}
hits.add(searchHit);
}
}
@ -376,25 +446,49 @@ public class SearchPhaseController extends AbstractComponent {
// merge suggest results
Suggest suggest = null;
if (!queryResults.isEmpty()) {
final Map<String, List<Suggest.Suggestion>> groupedSuggestions = new HashMap<>();
boolean hasSuggestions = false;
for (AtomicArray.Entry<? extends QuerySearchResultProvider> entry : queryResults) {
Suggest shardResult = entry.value.queryResult().queryResult().suggest();
if (shardResult == null) {
if (firstResult.suggest() != null) {
final Map<String, List<Suggestion>> groupedSuggestions = new HashMap<>();
for (AtomicArray.Entry<? extends QuerySearchResultProvider> queryResult : queryResults) {
Suggest shardSuggest = queryResult.value.queryResult().suggest();
if (shardSuggest != null) {
for (Suggestion<? extends Suggestion.Entry<? extends Suggestion.Entry.Option>> suggestion : shardSuggest) {
List<Suggestion> suggestionList = groupedSuggestions.computeIfAbsent(suggestion.getName(), s -> new ArrayList<>());
suggestionList.add(suggestion);
}
}
}
if (groupedSuggestions.isEmpty() == false) {
suggest = new Suggest(Suggest.reduce(groupedSuggestions));
if (!fetchResults.isEmpty()) {
int currentOffset = numSearchHits;
for (CompletionSuggestion suggestion : suggest.filter(CompletionSuggestion.class)) {
final List<CompletionSuggestion.Entry.Option> suggestionOptions = suggestion.getOptions();
for (int scoreDocIndex = currentOffset; scoreDocIndex < currentOffset + suggestionOptions.size(); scoreDocIndex++) {
ScoreDoc shardDoc = sortedDocs[scoreDocIndex];
FetchSearchResultProvider fetchSearchResultProvider = fetchResultsArr.get(shardDoc.shardIndex);
if (fetchSearchResultProvider == null) {
continue;
}
hasSuggestions = true;
Suggest.group(groupedSuggestions, shardResult);
FetchSearchResult fetchResult = fetchSearchResultProvider.fetchResult();
int fetchResultIndex = fetchResult.counterGetAndIncrement();
if (fetchResultIndex < fetchResult.hits().internalHits().length) {
InternalSearchHit hit = fetchResult.hits().internalHits()[fetchResultIndex];
CompletionSuggestion.Entry.Option suggestOption =
suggestionOptions.get(scoreDocIndex - currentOffset);
hit.score(shardDoc.score);
hit.shard(fetchResult.shardTarget());
suggestOption.setHit(hit);
}
}
currentOffset += suggestionOptions.size();
}
assert currentOffset == sortedDocs.length : "expected no more score doc slices";
}
}
}
suggest = hasSuggestions ? new Suggest(Suggest.reduce(groupedSuggestions)) : null;
}
// merge addAggregation
// merge Aggregation
InternalAggregations aggregations = null;
if (!queryResults.isEmpty()) {
if (firstResult.aggregations() != null && firstResult.aggregations().asList() != null) {
List<InternalAggregations> aggregationsList = new ArrayList<>(queryResults.size());
for (AtomicArray.Entry<? extends QuerySearchResultProvider> entry : queryResults) {
@ -402,12 +496,22 @@ public class SearchPhaseController extends AbstractComponent {
}
ReduceContext reduceContext = new ReduceContext(bigArrays, scriptService, clusterService.state());
aggregations = InternalAggregations.reduce(aggregationsList, reduceContext);
List<SiblingPipelineAggregator> pipelineAggregators = firstResult.pipelineAggregators();
if (pipelineAggregators != null) {
List<InternalAggregation> newAggs = StreamSupport.stream(aggregations.spliterator(), false)
.map((p) -> (InternalAggregation) p)
.collect(Collectors.toList());
for (SiblingPipelineAggregator pipelineAggregator : pipelineAggregators) {
InternalAggregation newAgg = pipelineAggregator.doReduce(new InternalAggregations(newAggs), reduceContext);
newAggs.add(newAgg);
}
aggregations = new InternalAggregations(newAggs);
}
}
//Collect profile results
SearchProfileShardResults shardResults = null;
if (!queryResults.isEmpty() && firstResult.profileResults() != null) {
if (firstResult.profileResults() != null) {
Map<String, ProfileShardResult> profileResults = new HashMap<>(queryResults.size());
for (AtomicArray.Entry<? extends QuerySearchResultProvider> entry : queryResults) {
String key = entry.value.queryResult().shardTarget().toString();
@ -416,24 +520,22 @@ public class SearchPhaseController extends AbstractComponent {
shardResults = new SearchProfileShardResults(profileResults);
}
if (aggregations != null) {
List<SiblingPipelineAggregator> pipelineAggregators = firstResult.pipelineAggregators();
if (pipelineAggregators != null) {
List<InternalAggregation> newAggs = StreamSupport.stream(aggregations.spliterator(), false).map((p) -> {
return (InternalAggregation) p;
}).collect(Collectors.toList());
for (SiblingPipelineAggregator pipelineAggregator : pipelineAggregators) {
ReduceContext reduceContext = new ReduceContext(bigArrays, scriptService, clusterService.state());
InternalAggregation newAgg = pipelineAggregator.doReduce(new InternalAggregations(newAggs), reduceContext);
newAggs.add(newAgg);
}
aggregations = new InternalAggregations(newAggs);
}
}
InternalSearchHits searchHits = new InternalSearchHits(hits.toArray(new InternalSearchHit[hits.size()]), totalHits, maxScore);
return new InternalSearchResponse(searchHits, aggregations, suggest, shardResults, timedOut, terminatedEarly);
}
/**
* returns the number of top results to be considered across all shards
*/
private static int topN(List<? extends AtomicArray.Entry<? extends QuerySearchResultProvider>> queryResults) {
QuerySearchResultProvider firstResult = queryResults.get(0).value;
int topN = firstResult.queryResult().size();
if (firstResult.includeFetch()) {
// if we did both query and fetch on the same go, we have fetched all the docs from each shards already, use them...
// this is also important since we shortcut and fetch only docs from "from" and up to "size"
topN *= queryResults.size();
}
return topN;
}
}

3
core/src/main/java/org/elasticsearch/search/fetch/ShardFetchSearchRequest.java
View File

@ -39,10 +39,7 @@ public class ShardFetchSearchRequest extends ShardFetchRequest implements Indice
private OriginalIndices originalIndices;
public ShardFetchSearchRequest() {
}
public ShardFetchSearchRequest(SearchRequest request, long id, IntArrayList list) {
this(request, id, list, null);
}
public ShardFetchSearchRequest(SearchRequest request, long id, IntArrayList list, ScoreDoc lastEmittedDoc) {

4
core/src/main/java/org/elasticsearch/search/fetch/matchedqueries/MatchedQueriesFetchSubPhase.java
View File

@ -43,7 +43,9 @@ public final class MatchedQueriesFetchSubPhase implements FetchSubPhase {
@Override
public void hitsExecute(SearchContext context, InternalSearchHit[] hits) {
if (hits.length == 0) {
if (hits.length == 0 ||
// in case the request has only suggest, parsed query is null
context.parsedQuery() == null) {
return;
}
hits = hits.clone(); // don't modify the incoming hits

15
core/src/main/java/org/elasticsearch/search/internal/InternalSearchHit.java
View File

@ -415,8 +415,8 @@ public class InternalSearchHit implements SearchHit {
static final String INNER_HITS = "inner_hits";
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
// public because we render hit as part of completion suggestion option
public XContentBuilder toInnerXContent(XContentBuilder builder, Params params) throws IOException {
List<SearchHitField> metaFields = new ArrayList<>();
List<SearchHitField> otherFields = new ArrayList<>();
if (fields != null && !fields.isEmpty()) {
@ -432,7 +432,6 @@ public class InternalSearchHit implements SearchHit {
}
}
builder.startObject();
// For inner_hit hits shard is null and that is ok, because the parent search hit has all this information.
// Even if this was included in the inner_hit hits this would be the same, so better leave it out.
if (explanation() != null && shard != null) {
@ -516,7 +515,6 @@ public class InternalSearchHit implements SearchHit {
}
builder.endObject();
}
builder.endObject();
return builder;
}
@ -533,6 +531,15 @@ public class InternalSearchHit implements SearchHit {
builder.endArray();
}
builder.endObject();
}
@Override
public XContentBuilder toXContent(XContentBuilder builder, Params params) throws IOException {
builder.startObject();
toInnerXContent(builder, params);
builder.endObject();
return builder;
}
public static InternalSearchHit readSearchHit(StreamInput in, InternalSearchHits.StreamContext context) throws IOException {

50
core/src/main/java/org/elasticsearch/search/suggest/Suggest.java
View File

@ -40,6 +40,7 @@ import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* Top level suggest result, containing the result for each suggestion.
@ -48,18 +49,16 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
private static final String NAME = "suggest";
private static final Comparator<Option> COMPARATOR = new Comparator<Suggest.Suggestion.Entry.Option>() {
@Override
public int compare(Option first, Option second) {
public static final Comparator<Option> COMPARATOR = (first, second) -> {
int cmp = Float.compare(second.getScore(), first.getScore());
if (cmp != 0) {
return cmp;
}
return first.getText().compareTo(second.getText());
}
};
private List<Suggestion<? extends Entry<? extends Option>>> suggestions;
private boolean hasScoreDocs;
private Map<String, Suggestion<? extends Entry<? extends Option>>> suggestMap;
@ -68,7 +67,12 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
}
public Suggest(List<Suggestion<? extends Entry<? extends Option>>> suggestions) {
// we sort suggestions by their names to ensure iteration over suggestions are consistent
// this is needed as we need to fill in suggestion docs in SearchPhaseController#sortDocs
// in the same order as we enrich the suggestions with fetch results in SearchPhaseController#merge
suggestions.sort((o1, o2) -> o1.getName().compareTo(o2.getName()));
this.suggestions = suggestions;
this.hasScoreDocs = filter(CompletionSuggestion.class).stream().anyMatch(CompletionSuggestion::hasScoreDocs);
}
@Override
@ -97,6 +101,13 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
return (T) suggestMap.get(name);
}
/**
* Whether any suggestions had query hits
*/
public boolean hasScoreDocs() {
return hasScoreDocs;
}
@Override
public void readFrom(StreamInput in) throws IOException {
final int size = in.readVInt();
@ -125,6 +136,7 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
suggestion.readFrom(in);
suggestions.add(suggestion);
}
hasScoreDocs = filter(CompletionSuggestion.class).stream().anyMatch(CompletionSuggestion::hasScoreDocs);
}
@Override
@ -160,18 +172,6 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
return result;
}
public static Map<String, List<Suggest.Suggestion>> group(Map<String, List<Suggest.Suggestion>> groupedSuggestions, Suggest suggest) {
for (Suggestion<? extends Entry<? extends Option>> suggestion : suggest) {
List<Suggestion> list = groupedSuggestions.get(suggestion.getName());
if (list == null) {
list = new ArrayList<>();
groupedSuggestions.put(suggestion.getName(), list);
}
list.add(suggestion);
}
return groupedSuggestions;
}
public static List<Suggestion<? extends Entry<? extends Option>>> reduce(Map<String, List<Suggest.Suggestion>> groupedSuggestions) {
List<Suggestion<? extends Entry<? extends Option>>> reduced = new ArrayList<>(groupedSuggestions.size());
for (java.util.Map.Entry<String, List<Suggestion>> unmergedResults : groupedSuggestions.entrySet()) {
@ -193,6 +193,16 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
return reduced;
}
/**
* @return only suggestions of type <code>suggestionType</code> contained in this {@link Suggest} instance
*/
public <T extends Suggestion> List<T> filter(Class<T> suggestionType) {
return suggestions.stream()
.filter(suggestion -> suggestion.getClass() == suggestionType)
.map(suggestion -> (T) suggestion)
.collect(Collectors.toList());
}
/**
* The suggestion responses corresponding with the suggestions in the request.
*/
@ -238,6 +248,13 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
return name;
}
/**
* @return The number of requested suggestion option size
*/
public int getSize() {
return size;
}
/**
* Merges the result of another suggestion into this suggestion.
* For internal usage.
@ -331,7 +348,6 @@ public class Suggest implements Iterable<Suggest.Suggestion<? extends Entry<? ex
return builder;
}
/**
* Represents a part from the suggest text with suggested options.
*/

2
core/src/main/java/org/elasticsearch/search/suggest/completion/CompletionSuggester.java
View File

@ -109,7 +109,7 @@ public class CompletionSuggester extends Suggester<CompletionSuggestionContext>
}
}
if (numResult++ < suggestionContext.getSize()) {
CompletionSuggestion.Entry.Option option = new CompletionSuggestion.Entry.Option(
CompletionSuggestion.Entry.Option option = new CompletionSuggestion.Entry.Option(suggestDoc.doc,
new Text(suggestDoc.key.toString()), suggestDoc.score, contexts, payload);
completionSuggestEntry.addOption(option);
} else {

113
core/src/main/java/org/elasticsearch/search/suggest/completion/CompletionSuggestion.java
View File

@ -18,11 +18,16 @@
*/
package org.elasticsearch.search.suggest.completion;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.suggest.Lookup;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;
import org.elasticsearch.common.lucene.Lucene;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.search.internal.InternalSearchHit;
import org.elasticsearch.search.internal.InternalSearchHits;
import org.elasticsearch.search.internal.InternalSearchHits.StreamContext.ShardTargetType;
import org.elasticsearch.search.suggest.Suggest;
import java.io.IOException;
@ -35,6 +40,8 @@ import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.elasticsearch.search.suggest.Suggest.COMPARATOR;
/**
* Suggestion response for {@link CompletionSuggester} results
*
@ -62,6 +69,25 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
super(name, size);
}
/**
* @return the result options for the suggestion
*/
public List<Entry.Option> getOptions() {
if (entries.isEmpty() == false) {
assert entries.size() == 1 : "CompletionSuggestion must have only one entry";
return entries.get(0).getOptions();
} else {
return Collections.emptyList();
}
}
/**
* @return whether there is any hits for the suggestion
*/
public boolean hasScoreDocs() {
return getOptions().size() > 0;
}
private static final class OptionPriorityQueue extends org.apache.lucene.util.PriorityQueue<Entry.Option> {
private final Comparator<Suggest.Suggestion.Entry.Option> comparator;
@ -90,18 +116,27 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
}
}
@Override
public Suggest.Suggestion<Entry> reduce(List<Suggest.Suggestion<Entry>> toReduce) {
/**
* Reduces suggestions to a single suggestion containing at most
* top {@link CompletionSuggestion#getSize()} options across <code>toReduce</code>
*/
public static CompletionSuggestion reduceTo(List<Suggest.Suggestion<Entry>> toReduce) {
if (toReduce.isEmpty()) {
return null;
} else {
final CompletionSuggestion leader = (CompletionSuggestion) toReduce.get(0);
final Entry leaderEntry = leader.getEntries().get(0);
final String name = leader.getName();
if (toReduce.size() == 1) {
return toReduce.get(0);
return leader;
} else {
// combine suggestion entries from participating shards on the coordinating node
// the global top <code>size</code> entries are collected from the shard results
// using a priority queue
OptionPriorityQueue priorityQueue = new OptionPriorityQueue(size, sortComparator());
for (Suggest.Suggestion<Entry> entries : toReduce) {
assert entries.getEntries().size() == 1 : "CompletionSuggestion must have only one entry";
for (Entry.Option option : entries.getEntries().get(0)) {
OptionPriorityQueue priorityQueue = new OptionPriorityQueue(leader.getSize(), COMPARATOR);
for (Suggest.Suggestion<Entry> suggestion : toReduce) {
assert suggestion.getName().equals(name) : "name should be identical across all suggestions";
for (Entry.Option option : ((CompletionSuggestion) suggestion).getOptions()) {
if (option == priorityQueue.insertWithOverflow(option)) {
// if the current option has overflown from pq,
// we can assume all of the successive options
@ -110,10 +145,25 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
}
}
}
Entry options = this.entries.get(0);
options.getOptions().clear();
Collections.addAll(options.getOptions(), priorityQueue.get());
return this;
final CompletionSuggestion suggestion = new CompletionSuggestion(leader.getName(), leader.getSize());
final Entry entry = new Entry(leaderEntry.getText(), leaderEntry.getOffset(), leaderEntry.getLength());
Collections.addAll(entry.getOptions(), priorityQueue.get());
suggestion.addTerm(entry);
return suggestion;
}
}
}
@Override
public Suggest.Suggestion<Entry> reduce(List<Suggest.Suggestion<Entry>> toReduce) {
return reduceTo(toReduce);
}
public void setShardIndex(int shardIndex) {
if (entries.isEmpty() == false) {
for (Entry.Option option : getOptions()) {
option.setShardIndex(shardIndex);
}
}
}
@ -145,9 +195,12 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
public static class Option extends Suggest.Suggestion.Entry.Option {
private Map<String, Set<CharSequence>> contexts;
private Map<String, List<Object>> payload;
private ScoreDoc doc;
private InternalSearchHit hit;
public Option(Text text, float score, Map<String, Set<CharSequence>> contexts, Map<String, List<Object>> payload) {
public Option(int docID, Text text, float score, Map<String, Set<CharSequence>> contexts, Map<String, List<Object>> payload) {
super(text, score);
this.doc = new ScoreDoc(docID, score);
this.payload = payload;
this.contexts = contexts;
}
@ -171,14 +224,30 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
return contexts;
}
@Override
public void setScore(float score) {
super.setScore(score);
public ScoreDoc getDoc() {
return doc;
}
public InternalSearchHit getHit() {
return hit;
}
public void setShardIndex(int shardIndex) {
this.doc.shardIndex = shardIndex;
}
public void setHit(InternalSearchHit hit) {
this.hit = hit;
}
@Override
protected XContentBuilder innerToXContent(XContentBuilder builder, Params params) throws IOException {
super.innerToXContent(builder, params);
builder.field("text", getText());
if (hit != null) {
hit.toInnerXContent(builder, params);
} else {
builder.field("score", getScore());
}
if (payload.size() > 0) {
builder.startObject("payload");
for (Map.Entry<String, List<Object>> entry : payload.entrySet()) {
@ -207,6 +276,11 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
@Override
public void readFrom(StreamInput in) throws IOException {
super.readFrom(in);
this.doc = Lucene.readScoreDoc(in);
if (in.readBoolean()) {
this.hit = InternalSearchHit.readSearchHit(in,
InternalSearchHits.streamContext().streamShardTarget(ShardTargetType.STREAM));
}
int payloadSize = in.readInt();
this.payload = new LinkedHashMap<>(payloadSize);
for (int i = 0; i < payloadSize; i++) {
@ -234,6 +308,13 @@ public final class CompletionSuggestion extends Suggest.Suggestion<CompletionSug
@Override
public void writeTo(StreamOutput out) throws IOException {
super.writeTo(out);
Lucene.writeScoreDoc(out, doc);
if (hit != null) {
out.writeBoolean(true);
hit.writeTo(out, InternalSearchHits.streamContext().streamShardTarget(ShardTargetType.STREAM));
} else {
out.writeBoolean(false);
}
out.writeInt(payload.size());
for (Map.Entry<String, List<Object>> entry : payload.entrySet()) {
out.writeString(entry.getKey());

234
core/src/test/java/org/elasticsearch/search/controller/SearchPhaseControllerTests.java Normal file
View File

@ -0,0 +1,234 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.search.controller;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.util.BigArrays;
import org.elasticsearch.common.util.concurrent.AtomicArray;
import org.elasticsearch.index.Index;
import org.elasticsearch.search.SearchShardTarget;
import org.elasticsearch.search.fetch.FetchSearchResult;
import org.elasticsearch.search.fetch.FetchSearchResultProvider;
import org.elasticsearch.search.internal.InternalSearchHit;
import org.elasticsearch.search.internal.InternalSearchHits;
import org.elasticsearch.search.internal.InternalSearchResponse;
import org.elasticsearch.search.query.QuerySearchResult;
import org.elasticsearch.search.query.QuerySearchResultProvider;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.search.suggest.completion.CompletionSuggestion;
import org.elasticsearch.test.ESTestCase;
import org.junit.Before;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.instanceOf;
public class SearchPhaseControllerTests extends ESTestCase {
private SearchPhaseController searchPhaseController;
@Before
public void setup() {
searchPhaseController = new SearchPhaseController(Settings.EMPTY, BigArrays.NON_RECYCLING_INSTANCE, null, null);
}
public void testSort() throws Exception {
List<CompletionSuggestion> suggestions = new ArrayList<>();
for (int i = 0; i < randomIntBetween(1, 5); i++) {
suggestions.add(new CompletionSuggestion(randomAsciiOfLength(randomIntBetween(1, 5)), randomIntBetween(1, 20)));
}
int nShards = randomIntBetween(1, 20);
int queryResultSize = randomBoolean() ? 0 : randomIntBetween(1, nShards * 2);
AtomicArray<QuerySearchResultProvider> results = generateQueryResults(nShards, suggestions, queryResultSize);
ScoreDoc[] sortedDocs = searchPhaseController.sortDocs(true, results);
int accumulatedLength = Math.min(queryResultSize, getTotalQueryHits(results));
for (Suggest.Suggestion<?> suggestion : reducedSuggest(results)) {
int suggestionSize = suggestion.getEntries().get(0).getOptions().size();
accumulatedLength += suggestionSize;
}
assertThat(sortedDocs.length, equalTo(accumulatedLength));
}
public void testMerge() throws IOException {
List<CompletionSuggestion> suggestions = new ArrayList<>();
for (int i = 0; i < randomIntBetween(1, 5); i++) {
suggestions.add(new CompletionSuggestion(randomAsciiOfLength(randomIntBetween(1, 5)), randomIntBetween(1, 20)));
}
int nShards = randomIntBetween(1, 20);
int queryResultSize = randomBoolean() ? 0 : randomIntBetween(1, nShards * 2);
AtomicArray<QuerySearchResultProvider> queryResults = generateQueryResults(nShards, suggestions, queryResultSize);
// calculate offsets and score doc array
List<ScoreDoc> mergedScoreDocs = new ArrayList<>();
ScoreDoc[] mergedSearchDocs = getTopShardDocs(queryResults);
mergedScoreDocs.addAll(Arrays.asList(mergedSearchDocs));
Suggest mergedSuggest = reducedSuggest(queryResults);
for (Suggest.Suggestion<?> suggestion : mergedSuggest) {
if (suggestion instanceof CompletionSuggestion) {
CompletionSuggestion completionSuggestion = ((CompletionSuggestion) suggestion);
mergedScoreDocs.addAll(completionSuggestion.getOptions().stream()
.map(CompletionSuggestion.Entry.Option::getDoc)
.collect(Collectors.toList()));
}
}
ScoreDoc[] sortedDocs = mergedScoreDocs.toArray(new ScoreDoc[mergedScoreDocs.size()]);
InternalSearchResponse mergedResponse = searchPhaseController.merge(true, sortedDocs, queryResults,
generateFetchResults(nShards, mergedSearchDocs, mergedSuggest));
assertThat(mergedResponse.hits().getHits().length, equalTo(mergedSearchDocs.length));
Suggest suggestResult = mergedResponse.suggest();
for (Suggest.Suggestion<?> suggestion : mergedSuggest) {
assertThat(suggestion, instanceOf(CompletionSuggestion.class));
if (suggestion.getEntries().get(0).getOptions().size() > 0) {
CompletionSuggestion suggestionResult = suggestResult.getSuggestion(suggestion.getName());
assertNotNull(suggestionResult);
List<CompletionSuggestion.Entry.Option> options = suggestionResult.getEntries().get(0).getOptions();
assertThat(options.size(), equalTo(suggestion.getEntries().get(0).getOptions().size()));
for (CompletionSuggestion.Entry.Option option : options) {
assertNotNull(option.getHit());
}
}
}
}
private AtomicArray<QuerySearchResultProvider> generateQueryResults(int nShards,
List<CompletionSuggestion> suggestions,
int searchHitsSize) {
AtomicArray<QuerySearchResultProvider> queryResults = new AtomicArray<>(nShards);
for (int shardIndex = 0; shardIndex < nShards; shardIndex++) {
QuerySearchResult querySearchResult = new QuerySearchResult(shardIndex,
new SearchShardTarget("", new Index("", ""), shardIndex));
TopDocs topDocs = new TopDocs(0, new ScoreDoc[0], 0);
if (searchHitsSize > 0) {
int nDocs = randomIntBetween(0, searchHitsSize);
ScoreDoc[] scoreDocs = new ScoreDoc[nDocs];
float maxScore = 0F;
for (int i = 0; i < nDocs; i++) {
float score = Math.abs(randomFloat());
scoreDocs[i] = new ScoreDoc(i, score);
if (score > maxScore) {
maxScore = score;
}
}
topDocs = new TopDocs(scoreDocs.length, scoreDocs, maxScore);
}
List<CompletionSuggestion> shardSuggestion = new ArrayList<>();
for (CompletionSuggestion completionSuggestion : suggestions) {
CompletionSuggestion suggestion = new CompletionSuggestion(
completionSuggestion.getName(), completionSuggestion.getSize());
final CompletionSuggestion.Entry completionEntry = new CompletionSuggestion.Entry(new Text(""), 0, 5);
suggestion.addTerm(completionEntry);
int optionSize = randomIntBetween(1, suggestion.getSize());
float maxScore = randomIntBetween(suggestion.getSize(), (int) Float.MAX_VALUE);
for (int i = 0; i < optionSize; i++) {
completionEntry.addOption(new CompletionSuggestion.Entry.Option(i, new Text(""), maxScore,
Collections.emptyMap(), Collections.emptyMap()));
float dec = randomIntBetween(0, optionSize);
if (dec <= maxScore) {
maxScore -= dec;
}
}
suggestion.setShardIndex(shardIndex);
shardSuggestion.add(suggestion);
}
querySearchResult.topDocs(topDocs, null);
querySearchResult.size(searchHitsSize);
querySearchResult.suggest(new Suggest(new ArrayList<>(shardSuggestion)));
queryResults.set(shardIndex, querySearchResult);
}
return queryResults;
}
private int getTotalQueryHits(AtomicArray<QuerySearchResultProvider> results) {
int resultCount = 0;
for (AtomicArray.Entry<QuerySearchResultProvider> shardResult : results.asList()) {
resultCount += shardResult.value.queryResult().topDocs().totalHits;
}
return resultCount;
}
private Suggest reducedSuggest(AtomicArray<QuerySearchResultProvider> results) {
Map<String, List<Suggest.Suggestion<CompletionSuggestion.Entry>>> groupedSuggestion = new HashMap<>();
for (AtomicArray.Entry<QuerySearchResultProvider> entry : results.asList()) {
for (Suggest.Suggestion<?> suggestion : entry.value.queryResult().suggest()) {
List<Suggest.Suggestion<CompletionSuggestion.Entry>> suggests =
groupedSuggestion.computeIfAbsent(suggestion.getName(), s -> new ArrayList<>());
suggests.add((Suggest.Suggestion<CompletionSuggestion.Entry>) suggestion);
}
}
return new Suggest(groupedSuggestion.values().stream().map(CompletionSuggestion::reduceTo)
.collect(Collectors.toList()));
}
private ScoreDoc[] getTopShardDocs(AtomicArray<QuerySearchResultProvider> results) throws IOException {
List<AtomicArray.Entry<QuerySearchResultProvider>> resultList = results.asList();
TopDocs[] shardTopDocs = new TopDocs[resultList.size()];
for (int i = 0; i < resultList.size(); i++) {
shardTopDocs[i] = resultList.get(i).value.queryResult().topDocs();
}
int topN = Math.min(results.get(0).queryResult().size(), getTotalQueryHits(results));
return TopDocs.merge(topN, shardTopDocs).scoreDocs;
}
private AtomicArray<FetchSearchResultProvider> generateFetchResults(int nShards, ScoreDoc[] mergedSearchDocs, Suggest mergedSuggest) {
AtomicArray<FetchSearchResultProvider> fetchResults = new AtomicArray<>(nShards);
for (int shardIndex = 0; shardIndex < nShards; shardIndex++) {
float maxScore = -1F;
SearchShardTarget shardTarget = new SearchShardTarget("", new Index("", ""), shardIndex);
FetchSearchResult fetchSearchResult = new FetchSearchResult(shardIndex, shardTarget);
List<InternalSearchHit> internalSearchHits = new ArrayList<>();
for (ScoreDoc scoreDoc : mergedSearchDocs) {
if (scoreDoc.shardIndex == shardIndex) {
internalSearchHits.add(new InternalSearchHit(scoreDoc.doc, "", new Text(""), Collections.emptyMap()));
if (scoreDoc.score > maxScore) {
maxScore = scoreDoc.score;
}
}
}
for (Suggest.Suggestion<?> suggestion : mergedSuggest) {
if (suggestion instanceof CompletionSuggestion) {
for (CompletionSuggestion.Entry.Option option : ((CompletionSuggestion) suggestion).getOptions()) {
ScoreDoc doc = option.getDoc();
if (doc.shardIndex == shardIndex) {
internalSearchHits.add(new InternalSearchHit(doc.doc, "", new Text(""), Collections.emptyMap()));
if (doc.score > maxScore) {
maxScore = doc.score;
}
}
}
}
}
InternalSearchHit[] hits = internalSearchHits.toArray(new InternalSearchHit[internalSearchHits.size()]);
fetchSearchResult.hits(new InternalSearchHits(hits, hits.length, maxScore));
fetchResults.set(shardIndex, fetchSearchResult);
}
return fetchResults;
}
}

113
core/src/test/java/org/elasticsearch/search/suggest/CompletionSuggestSearchIT.java
View File

@ -63,6 +63,7 @@ import java.util.LinkedHashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import static org.elasticsearch.action.support.WriteRequest.RefreshPolicy.IMMEDIATE;
import static org.elasticsearch.cluster.metadata.IndexMetaData.SETTING_NUMBER_OF_REPLICAS;
@ -72,6 +73,9 @@ import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAcked;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertAllSuccessful;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertNoFailures;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertSearchHit;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.hasId;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.hasScore;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.containsInAnyOrder;
import static org.hamcrest.Matchers.containsString;
@ -80,6 +84,7 @@ import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.hasItem;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.hamcrest.Matchers.notNullValue;
@SuppressCodecs("*") // requires custom completion format
@ -391,6 +396,114 @@ public class CompletionSuggestSearchIT extends ESIntegTestCase {
}
}
public void testSuggestDocument() throws Exception {
final CompletionMappingBuilder mapping = new CompletionMappingBuilder();
createIndexAndMapping(mapping);
int numDocs = randomIntBetween(10, 100);
List<IndexRequestBuilder> indexRequestBuilders = new ArrayList<>();
for (int i = 1; i <= numDocs; i++) {
indexRequestBuilders.add(client().prepareIndex(INDEX, TYPE, "" + i)
.setSource(jsonBuilder()
.startObject()
.startObject(FIELD)
.field("input", "suggestion" + i)
.field("weight", i)
.endObject()
.endObject()
));
}
indexRandom(true, indexRequestBuilders);
CompletionSuggestionBuilder prefix = SuggestBuilders.completionSuggestion(FIELD).prefix("sugg").size(numDocs);
SearchResponse searchResponse = client().prepareSearch(INDEX).suggest(new SuggestBuilder().addSuggestion("foo", prefix)).get();
CompletionSuggestion completionSuggestion = searchResponse.getSuggest().getSuggestion("foo");
CompletionSuggestion.Entry options = completionSuggestion.getEntries().get(0);
assertThat(options.getOptions().size(), equalTo(numDocs));
int id = numDocs;
for (CompletionSuggestion.Entry.Option option : options) {
assertThat(option.getText().toString(), equalTo("suggestion" + id));
assertSearchHit(option.getHit(), hasId("" + id));
assertSearchHit(option.getHit(), hasScore(((float) id)));
assertNotNull(option.getHit().source());
id--;
}
}
public void testSuggestDocumentNoSource() throws Exception {
final CompletionMappingBuilder mapping = new CompletionMappingBuilder();
createIndexAndMapping(mapping);
int numDocs = randomIntBetween(10, 100);
List<IndexRequestBuilder> indexRequestBuilders = new ArrayList<>();
for (int i = 1; i <= numDocs; i++) {
indexRequestBuilders.add(client().prepareIndex(INDEX, TYPE, "" + i)
.setSource(jsonBuilder()
.startObject()
.startObject(FIELD)
.field("input", "suggestion" + i)
.field("weight", i)
.endObject()
.endObject()
));
}
indexRandom(true, indexRequestBuilders);
CompletionSuggestionBuilder prefix = SuggestBuilders.completionSuggestion(FIELD).prefix("sugg").size(numDocs);
SearchResponse searchResponse = client().prepareSearch(INDEX).suggest(
new SuggestBuilder().addSuggestion("foo", prefix)
).setFetchSource(false).get();
CompletionSuggestion completionSuggestion = searchResponse.getSuggest().getSuggestion("foo");
CompletionSuggestion.Entry options = completionSuggestion.getEntries().get(0);
assertThat(options.getOptions().size(), equalTo(numDocs));
int id = numDocs;
for (CompletionSuggestion.Entry.Option option : options) {
assertThat(option.getText().toString(), equalTo("suggestion" + id));
assertSearchHit(option.getHit(), hasId("" + id));
assertSearchHit(option.getHit(), hasScore(((float) id)));
assertNull(option.getHit().source());
id--;
}
}
public void testSuggestDocumentSourceFiltering() throws Exception {
final CompletionMappingBuilder mapping = new CompletionMappingBuilder();
createIndexAndMapping(mapping);
int numDocs = randomIntBetween(10, 100);
List<IndexRequestBuilder> indexRequestBuilders = new ArrayList<>();
for (int i = 1; i <= numDocs; i++) {
indexRequestBuilders.add(client().prepareIndex(INDEX, TYPE, "" + i)
.setSource(jsonBuilder()
.startObject()
.startObject(FIELD)
.field("input", "suggestion" + i)
.field("weight", i)
.endObject()
.field("a", "include")
.field("b", "exclude")
.endObject()
));
}
indexRandom(true, indexRequestBuilders);
CompletionSuggestionBuilder prefix = SuggestBuilders.completionSuggestion(FIELD).prefix("sugg").size(numDocs);
SearchResponse searchResponse = client().prepareSearch(INDEX).suggest(
new SuggestBuilder().addSuggestion("foo", prefix)
).setFetchSource("a", "b").get();
CompletionSuggestion completionSuggestion = searchResponse.getSuggest().getSuggestion("foo");
CompletionSuggestion.Entry options = completionSuggestion.getEntries().get(0);
assertThat(options.getOptions().size(), equalTo(numDocs));
int id = numDocs;
for (CompletionSuggestion.Entry.Option option : options) {
assertThat(option.getText().toString(), equalTo("suggestion" + id));
assertSearchHit(option.getHit(), hasId("" + id));
assertSearchHit(option.getHit(), hasScore(((float) id)));
assertNotNull(option.getHit().source());
Set<String> sourceFields = option.getHit().sourceAsMap().keySet();
assertThat(sourceFields, contains("a"));
assertThat(sourceFields, not(contains("b")));
id--;
}
}
public void testThatWeightsAreWorking() throws Exception {
createIndexAndMapping(completionMappingBuilder);

73
core/src/test/java/org/elasticsearch/search/suggest/SuggestTests.java Normal file
View File

@ -0,0 +1,73 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.search.suggest;
import org.elasticsearch.search.suggest.completion.CompletionSuggestion;
import org.elasticsearch.search.suggest.phrase.PhraseSuggestion;
import org.elasticsearch.search.suggest.term.TermSuggestion;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
public class SuggestTests extends ESTestCase {
public void testFilter() throws Exception {
List<Suggest.Suggestion<? extends Suggest.Suggestion.Entry<? extends Suggest.Suggestion.Entry.Option>>> suggestions;
CompletionSuggestion completionSuggestion = new CompletionSuggestion(randomAsciiOfLength(10), 2);
PhraseSuggestion phraseSuggestion = new PhraseSuggestion(randomAsciiOfLength(10), 2);
TermSuggestion termSuggestion = new TermSuggestion(randomAsciiOfLength(10), 2, SortBy.SCORE);
suggestions = Arrays.asList(completionSuggestion, phraseSuggestion, termSuggestion);
Suggest suggest = new Suggest(suggestions);
List<PhraseSuggestion> phraseSuggestions = suggest.filter(PhraseSuggestion.class);
assertThat(phraseSuggestions.size(), equalTo(1));
assertThat(phraseSuggestions.get(0), equalTo(phraseSuggestion));
List<TermSuggestion> termSuggestions = suggest.filter(TermSuggestion.class);
assertThat(termSuggestions.size(), equalTo(1));
assertThat(termSuggestions.get(0), equalTo(termSuggestion));
List<CompletionSuggestion> completionSuggestions = suggest.filter(CompletionSuggestion.class);
assertThat(completionSuggestions.size(), equalTo(1));
assertThat(completionSuggestions.get(0), equalTo(completionSuggestion));
}
public void testSuggestionOrdering() throws Exception {
List<Suggest.Suggestion<? extends Suggest.Suggestion.Entry<? extends Suggest.Suggestion.Entry.Option>>> suggestions;
suggestions = new ArrayList<>();
int n = randomIntBetween(2, 5);
for (int i = 0; i < n; i++) {
suggestions.add(new CompletionSuggestion(randomAsciiOfLength(10), randomIntBetween(3, 5)));
}
Collections.shuffle(suggestions, random());
Suggest suggest = new Suggest(suggestions);
List<Suggest.Suggestion<? extends Suggest.Suggestion.Entry<? extends Suggest.Suggestion.Entry.Option>>> sortedSuggestions;
sortedSuggestions = new ArrayList<>(suggestions);
sortedSuggestions.sort((o1, o2) -> o1.getName().compareTo(o2.getName()));
List<CompletionSuggestion> completionSuggestions = suggest.filter(CompletionSuggestion.class);
assertThat(completionSuggestions.size(), equalTo(n));
for (int i = 0; i < n; i++) {
assertThat(completionSuggestions.get(i).getName(), equalTo(sortedSuggestions.get(i).getName()));
}
}
}

61
core/src/test/java/org/elasticsearch/search/suggest/completion/CompletionSuggestionTests.java Normal file
View File

@ -0,0 +1,61 @@
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.search.suggest.completion;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.search.suggest.Suggest;
import org.elasticsearch.test.ESTestCase;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.lessThanOrEqualTo;
public class CompletionSuggestionTests extends ESTestCase {
public void testToReduce() throws Exception {
List<Suggest.Suggestion<CompletionSuggestion.Entry>> shardSuggestions = new ArrayList<>();
int nShards = randomIntBetween(1, 10);
String name = randomAsciiOfLength(10);
int size = randomIntBetween(3, 5);
for (int i = 0; i < nShards; i++) {
CompletionSuggestion suggestion = new CompletionSuggestion(name, size);
suggestion.addTerm(new CompletionSuggestion.Entry(new Text(""), 0, 0));
shardSuggestions.add(suggestion);
}
int totalResults = randomIntBetween(0, 5) * nShards;
float maxScore = randomIntBetween(totalResults, totalResults*2);
for (int i = 0; i < totalResults; i++) {
Suggest.Suggestion<CompletionSuggestion.Entry> suggestion = randomFrom(shardSuggestions);
suggestion.getEntries().get(0).addOption(new CompletionSuggestion.Entry.Option(i, new Text(""),
maxScore - i, Collections.emptyMap(), Collections.emptyMap()));
}
CompletionSuggestion reducedSuggestion = CompletionSuggestion.reduceTo(shardSuggestions);
assertNotNull(reducedSuggestion);
assertThat(reducedSuggestion.getOptions().size(), lessThanOrEqualTo(size));
int count = 0;
for (CompletionSuggestion.Entry.Option option : reducedSuggestion.getOptions()) {
assertThat(option.getDoc().doc, equalTo(count));
count++;
}
}
}

25
docs/reference/search/suggesters/completion-suggest.asciidoc
View File

@ -181,15 +181,23 @@ returns this response:
"length" : 3,
"options" : [ {
"text" : "Nirvana",
"score" : 1.0
"_index": "music",
"_type": "song",
"_id": "1",
"_score": 1.0,
"_source": {
"suggest": ["Nevermind", "Nirvana"]
}
} ]
} ]
}
--------------------------------------------------
// TESTRESPONSE
The configured weight for a suggestion is returned as `score`.
The `text` field uses the `input` of your indexed suggestion.
The configured weight for a suggestion is returned as `_score`.
The `text` field uses the `input` of your indexed suggestion. The document
source is returned in `_source`. <<search-request-source-filtering, source filtering>>
parameters are supported for filtering the document source.
Suggestions are document oriented, you can specify fields to be
returned as part of suggestion payload. All field types (`string`,
@ -200,7 +208,7 @@ as follows:
[source,js]
--------------------------------------------------
POST music/song?refresh
PUT music/song/2?refresh
{
"suggest" : "Nirvana",
"title" : "Nevermind"
@ -243,7 +251,14 @@ returns:
"length" : 1,
"options" : [ {
"text" : "Nirvana",
"score" : 1.0,
"_index": "music",
"_type": "song",
"_id": "2",
"_score" : 1.0,
"_source": {
"title": "Nevermind",
"suggest": "Nirvana"
},
"payload" : {
"title" : [ "Nevermind" ]
}