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

Example 36 with MatchNoDocsQuery

use of org.apache.lucene.search.MatchNoDocsQuery in project elasticsearch by elastic.

the class TopHitsAggregatorTests method testNoResults.

public void testNoResults() throws Exception {
    TopHits result = (TopHits) testCase(new MatchNoDocsQuery(), topHits("_name").sort("string", SortOrder.DESC));
    SearchHits searchHits = ((TopHits) result).getHits();
    assertEquals(0L, searchHits.getTotalHits());
}

Example 37 with MatchNoDocsQuery

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

the class TermsQParserPlugin method createParser.

@Override
public QParser createParser(String qstr, SolrParams localParams, SolrParams params, SolrQueryRequest req) {
    return new QParser(qstr, localParams, params, req) {

        @Override
        public Query parse() throws SyntaxError {
            String fname = localParams.get(QueryParsing.F);
            FieldType ft = req.getSchema().getFieldTypeNoEx(fname);
            String separator = localParams.get(SEPARATOR, ",");
            //never null
            String qstr = localParams.get(QueryParsing.V);
            Method method = Method.valueOf(localParams.get(METHOD, Method.termsFilter.name()));
            //TODO pick the default method based on various heuristics from benchmarks
            //if space then split on all whitespace & trim, otherwise strictly interpret
            final boolean sepIsSpace = separator.equals(" ");
            if (sepIsSpace)
                qstr = qstr.trim();
            if (qstr.length() == 0)
                return new MatchNoDocsQuery();
            final String[] splitVals = sepIsSpace ? qstr.split("\\s+") : qstr.split(Pattern.quote(separator), -1);
            assert splitVals.length > 0;
            if (ft.isPointField()) {
                if (localParams.get(METHOD) != null) {
                    throw new IllegalArgumentException(String.format(Locale.ROOT, "Method '%s' not supported in TermsQParser when using PointFields", localParams.get(METHOD)));
                }
                return ((PointField) ft).getSetQuery(this, req.getSchema().getField(fname), Arrays.asList(splitVals));
            }
            BytesRef[] bytesRefs = new BytesRef[splitVals.length];
            BytesRefBuilder term = new BytesRefBuilder();
            for (int i = 0; i < splitVals.length; i++) {
                String stringVal = splitVals[i];
                //logic same as TermQParserPlugin
                if (ft != null) {
                    ft.readableToIndexed(stringVal, term);
                } else {
                    term.copyChars(stringVal);
                }
                bytesRefs[i] = term.toBytesRef();
            }
            return new SolrConstantScoreQuery(method.makeFilter(fname, bytesRefs));
        }
    };
}

Example 38 with MatchNoDocsQuery

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

the class TestSolrCoreParser method testHandyQuery.

// test custom query (HandyQueryBuilder) wrapping a Query
public void testHandyQuery() throws IOException, ParserException {
    final String lhsXml = "<HelloQuery/>";
    final String rhsXml = "<GoodbyeQuery/>";
    final Query query = parseHandyQuery(lhsXml, rhsXml);
    assertTrue(query instanceof BooleanQuery);
    final BooleanQuery bq = (BooleanQuery) query;
    assertEquals(2, bq.clauses().size());
    assertTrue(bq.clauses().get(0).getQuery() instanceof MatchAllDocsQuery);
    assertTrue(bq.clauses().get(1).getQuery() instanceof MatchNoDocsQuery);
}

Example 39 with MatchNoDocsQuery

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

the class TestQueryBitSetProducer method testReaderNotSuitedForCaching.

public void testReaderNotSuitedForCaching() throws IOException {
    Directory dir = newDirectory();
    IndexWriterConfig iwc = newIndexWriterConfig().setMergePolicy(NoMergePolicy.INSTANCE);
    RandomIndexWriter w = new RandomIndexWriter(random(), dir, iwc);
    w.addDocument(new Document());
    DirectoryReader reader = new DummyDirectoryReader(w.getReader());
    QueryBitSetProducer producer = new QueryBitSetProducer(new MatchNoDocsQuery());
    assertNull(producer.getBitSet(reader.leaves().get(0)));
    assertEquals(0, producer.cache.size());
    producer = new QueryBitSetProducer(new MatchAllDocsQuery());
    BitSet bitSet = producer.getBitSet(reader.leaves().get(0));
    assertEquals(1, bitSet.length());
    assertEquals(true, bitSet.get(0));
    assertEquals(0, producer.cache.size());
    IOUtils.close(reader, w, dir);
}

Example 40 with MatchNoDocsQuery

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

the class TestCheckJoinIndex method testNoParent.

public void testNoParent() throws IOException {
    final Directory dir = newDirectory();
    final RandomIndexWriter w = new RandomIndexWriter(random(), dir);
    final int numDocs = TestUtil.nextInt(random(), 1, 3);
    for (int i = 0; i < numDocs; ++i) {
        w.addDocument(new Document());
    }
    final IndexReader reader = w.getReader();
    w.close();
    BitSetProducer parentsFilter = new QueryBitSetProducer(new MatchNoDocsQuery());
    try {
        CheckJoinIndex.check(reader, parentsFilter);
        fail("Invalid index");
    } catch (IllegalStateException e) {
    // expected
    } finally {
        reader.close();
        dir.close();
    }
}