Examples with ContextIndexSearcher org.elasticsearch.search.internal.ContextIndexSearcher used on opensource projects

Example 6 with ContextIndexSearcher

use of org.elasticsearch.search.internal.ContextIndexSearcher in project elasticsearch by elastic.

the class QueryRescorer method explain.

@Override
public Explanation explain(int topLevelDocId, SearchContext context, RescoreSearchContext rescoreContext, Explanation sourceExplanation) throws IOException {
    QueryRescoreContext rescore = (QueryRescoreContext) rescoreContext;
    ContextIndexSearcher searcher = context.searcher();
    if (sourceExplanation == null) {
        // this should not happen but just in case
        return Explanation.noMatch("nothing matched");
    }
    // TODO: this isn't right?  I.e., we are incorrectly pretending all first pass hits were rescored?  If the requested docID was
    // beyond the top rescoreContext.window() in the first pass hits, we don't rescore it now?
    Explanation rescoreExplain = searcher.explain(rescore.query(), topLevelDocId);
    float primaryWeight = rescore.queryWeight();
    Explanation prim;
    if (sourceExplanation.isMatch()) {
        prim = Explanation.match(sourceExplanation.getValue() * primaryWeight, "product of:", sourceExplanation, Explanation.match(primaryWeight, "primaryWeight"));
    } else {
        prim = Explanation.noMatch("First pass did not match", sourceExplanation);
    }
    // we should add QueryRescorer.explainCombine to Lucene?
    if (rescoreExplain != null && rescoreExplain.isMatch()) {
        float secondaryWeight = rescore.rescoreQueryWeight();
        Explanation sec = Explanation.match(rescoreExplain.getValue() * secondaryWeight, "product of:", rescoreExplain, Explanation.match(secondaryWeight, "secondaryWeight"));
        QueryRescoreMode scoreMode = rescore.scoreMode();
        return Explanation.match(scoreMode.combine(prim.getValue(), sec.getValue()), scoreMode + " of:", prim, sec);
    } else {
        return prim;
    }
}

Example 7 with ContextIndexSearcher

use of org.elasticsearch.search.internal.ContextIndexSearcher in project elasticsearch by elastic.

the class AggregatorTestCase method createSearchContext.

protected SearchContext createSearchContext(IndexSearcher indexSearcher, IndexSettings indexSettings) {
    Engine.Searcher searcher = new Engine.Searcher("aggregator_test", indexSearcher);
    QueryCache queryCache = new DisabledQueryCache(indexSettings);
    QueryCachingPolicy queryCachingPolicy = new QueryCachingPolicy() {

        @Override
        public void onUse(Query query) {
        }

        @Override
        public boolean shouldCache(Query query) throws IOException {
            // never cache a query
            return false;
        }
    };
    ContextIndexSearcher contextIndexSearcher = new ContextIndexSearcher(searcher, queryCache, queryCachingPolicy);
    SearchContext searchContext = mock(SearchContext.class);
    when(searchContext.numberOfShards()).thenReturn(1);
    when(searchContext.searcher()).thenReturn(contextIndexSearcher);
    when(searchContext.fetchPhase()).thenReturn(new FetchPhase(Arrays.asList(new FetchSourceSubPhase(), new DocValueFieldsFetchSubPhase())));
    doAnswer(invocation -> {
        releasables.add((Releasable) invocation.getArguments()[0]);
        return null;
    }).when(searchContext).addReleasable(anyObject(), anyObject());
    return searchContext;
}