Examples with Explanation org.apache.lucene.search.Explanation used on opensource projects

Example 56 with Explanation

use of org.apache.lucene.search.Explanation in project lucene-solr by apache.

the class TestSweetSpotSimilarityFactory method computeNorm.

private static float computeNorm(Similarity sim, int length) throws IOException {
    String value = IntStream.range(0, length).mapToObj(i -> "a").collect(Collectors.joining(" "));
    Directory dir = newDirectory();
    IndexWriter w = new IndexWriter(dir, newIndexWriterConfig().setSimilarity(sim));
    w.addDocument(Collections.singleton(newTextField("foo", value, Store.NO)));
    DirectoryReader reader = DirectoryReader.open(w);
    w.close();
    IndexSearcher searcher = new IndexSearcher(reader);
    searcher.setSimilarity(sim);
    Explanation expl = searcher.explain(new TermQuery(new Term("foo", "a")), 0);
    reader.close();
    dir.close();
    Explanation norm = findExplanation(expl, "fieldNorm");
    assertNotNull(norm);
    return norm.getValue();
}

Example 57 with Explanation

use of org.apache.lucene.search.Explanation in project lucene-solr by apache.

the class TestNearSpansOrdered method testSpanNearScorerExplain.

/**
   * not a direct test of NearSpans, but a demonstration of how/when
   * this causes problems
   */
public void testSpanNearScorerExplain() throws Exception {
    SpanNearQuery q = makeQuery();
    Explanation e = searcher.explain(q, 1);
    assertTrue("Scorer explanation value for doc#1 isn't positive: " + e.toString(), 0.0f <= e.getValue());
}

Example 58 with Explanation

use of org.apache.lucene.search.Explanation in project lucene-solr by apache.

the class DistanceToShapeValueSource method getValues.

@Override
public FunctionValues getValues(Map context, LeafReaderContext readerContext) throws IOException {
    final FunctionValues shapeValues = shapeValueSource.getValues(context, readerContext);
    return new DoubleDocValues(this) {

        @Override
        public double doubleVal(int doc) throws IOException {
            Shape shape = (Shape) shapeValues.objectVal(doc);
            if (shape == null || shape.isEmpty())
                return nullValue;
            Point pt = shape.getCenter();
            return distCalc.distance(queryPoint, pt) * multiplier;
        }

        @Override
        public Explanation explain(int doc) throws IOException {
            Explanation exp = super.explain(doc);
            List<Explanation> details = new ArrayList<>(Arrays.asList(exp.getDetails()));
            details.add(shapeValues.explain(doc));
            return Explanation.match(exp.getValue(), exp.getDescription(), details);
        }
    };
}

Example 59 with Explanation

use of org.apache.lucene.search.Explanation in project lucene-solr by apache.

the class ShapePredicateValueSource method getValues.

@Override
public FunctionValues getValues(Map context, LeafReaderContext readerContext) throws IOException {
    final FunctionValues shapeValues = shapeValuesource.getValues(context, readerContext);
    return new BoolDocValues(this) {

        @Override
        public boolean boolVal(int doc) throws IOException {
            Shape indexedShape = (Shape) shapeValues.objectVal(doc);
            if (indexedShape == null)
                return false;
            return op.evaluate(indexedShape, queryShape);
        }

        @Override
        public Explanation explain(int doc) throws IOException {
            Explanation exp = super.explain(doc);
            List<Explanation> details = new ArrayList<>(Arrays.asList(exp.getDetails()));
            details.add(shapeValues.explain(doc));
            return Explanation.match(exp.getValue(), exp.getDescription(), details);
        }
    };
}

Example 60 with Explanation

use of org.apache.lucene.search.Explanation in project lucene-solr by apache.

the class SolrPluginUtils method doStandardResultsDebug.

public static void doStandardResultsDebug(SolrQueryRequest req, Query query, DocList results, boolean dbgResults, NamedList dbg) throws IOException {
    if (dbgResults) {
        SolrIndexSearcher searcher = req.getSearcher();
        IndexSchema schema = searcher.getSchema();
        boolean explainStruct = req.getParams().getBool(CommonParams.EXPLAIN_STRUCT, false);
        if (results != null) {
            NamedList<Explanation> explain = getExplanations(query, results, searcher, schema);
            dbg.add("explain", explainStruct ? explanationsToNamedLists(explain) : explanationsToStrings(explain));
        }
        String otherQueryS = req.getParams().get(CommonParams.EXPLAIN_OTHER);
        if (otherQueryS != null && otherQueryS.length() > 0) {
            DocList otherResults = doSimpleQuery(otherQueryS, req, 0, 10);
            dbg.add("otherQuery", otherQueryS);
            NamedList<Explanation> explainO = getExplanations(query, otherResults, searcher, schema);
            dbg.add("explainOther", explainStruct ? explanationsToNamedLists(explainO) : explanationsToStrings(explainO));
        }
    }
}