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

Example 21 with PhraseQuery

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

the class TestUnifiedHighlighterMTQ method testPositionSensitiveWithWildcardDoesNotHighlight.

public void testPositionSensitiveWithWildcardDoesNotHighlight() throws Exception {
    RandomIndexWriter iw = new RandomIndexWriter(random(), dir, indexAnalyzer);
    Document doc = new Document();
    doc.add(new Field("body", "iterate insect ipswitch illinois indirect", fieldType));
    doc.add(newTextField("id", "id", Field.Store.YES));
    iw.addDocument(doc);
    IndexReader ir = iw.getReader();
    iw.close();
    IndexSearcher searcher = newSearcher(ir);
    UnifiedHighlighter highlighter = new UnifiedHighlighter(searcher, indexAnalyzer);
    int docID = searcher.search(new TermQuery(new Term("id", "id")), 1).scoreDocs[0].doc;
    PhraseQuery pq = new PhraseQuery.Builder().add(new Term("body", "consent")).add(new Term("body", "order")).build();
    BooleanQuery query = new BooleanQuery.Builder().add(new WildcardQuery(new Term("body", "enforc*")), BooleanClause.Occur.MUST).add(pq, BooleanClause.Occur.MUST).build();
    int[] docIds = new int[] { docID };
    String[] snippets = highlighter.highlightFields(new String[] { "body" }, query, docIds, new int[] { 2 }).get("body");
    assertEquals(1, snippets.length);
    assertEquals("iterate insect ipswitch illinois indirect", snippets[0]);
    ir.close();
}

Example 22 with PhraseQuery

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

the class TestQueryParser method testMultiWordSynonyms.

// TODO: Move to QueryParserTestBase once standard flexible parser gets this capability
public void testMultiWordSynonyms() throws Exception {
    QueryParser dumb = new QueryParser("field", new Analyzer1());
    dumb.setSplitOnWhitespace(false);
    TermQuery guinea = new TermQuery(new Term("field", "guinea"));
    TermQuery pig = new TermQuery(new Term("field", "pig"));
    TermQuery cavy = new TermQuery(new Term("field", "cavy"));
    // A multi-word synonym source will form a graph query for synonyms that formed the graph token stream
    BooleanQuery.Builder synonym = new BooleanQuery.Builder();
    synonym.add(guinea, BooleanClause.Occur.MUST);
    synonym.add(pig, BooleanClause.Occur.MUST);
    BooleanQuery guineaPig = synonym.build();
    PhraseQuery phraseGuineaPig = new PhraseQuery.Builder().add(new Term("field", "guinea")).add(new Term("field", "pig")).build();
    BooleanQuery graphQuery = new BooleanQuery.Builder().add(guineaPig, BooleanClause.Occur.SHOULD).add(cavy, BooleanClause.Occur.SHOULD).build();
    assertEquals(graphQuery, dumb.parse("guinea pig"));
    // With the phrase operator, a multi-word synonym source will form span near queries.
    SpanNearQuery spanGuineaPig = SpanNearQuery.newOrderedNearQuery("field").addClause(new SpanTermQuery(new Term("field", "guinea"))).addClause(new SpanTermQuery(new Term("field", "pig"))).setSlop(0).build();
    SpanTermQuery spanCavy = new SpanTermQuery(new Term("field", "cavy"));
    SpanOrQuery spanPhrase = new SpanOrQuery(new SpanQuery[] { spanGuineaPig, spanCavy });
    assertEquals(spanPhrase, dumb.parse("\"guinea pig\""));
    // custom behavior, the synonyms are expanded, unless you use quote operator
    QueryParser smart = new SmartQueryParser();
    smart.setSplitOnWhitespace(false);
    graphQuery = new BooleanQuery.Builder().add(guineaPig, BooleanClause.Occur.SHOULD).add(cavy, BooleanClause.Occur.SHOULD).build();
    assertEquals(graphQuery, smart.parse("guinea pig"));
    assertEquals(phraseGuineaPig, smart.parse("\"guinea pig\""));
}

Example 23 with PhraseQuery

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

the class ThreadedIndexingAndSearchingTestCase method smokeTestSearcher.

protected void smokeTestSearcher(IndexSearcher s) throws Exception {
    runQuery(s, new TermQuery(new Term("body", "united")));
    runQuery(s, new TermQuery(new Term("titleTokenized", "states")));
    PhraseQuery pq = new PhraseQuery("body", "united", "states");
    runQuery(s, pq);
}

Example 24 with PhraseQuery

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

the class TestBasics method testPhrase.

public void testPhrase() throws Exception {
    PhraseQuery query = new PhraseQuery("field", "seventy", "seven");
    checkHits(query, new int[] { 77, 177, 277, 377, 477, 577, 677, 777, 877, 977, 1077, 1177, 1277, 1377, 1477, 1577, 1677, 1777, 1877, 1977 });
}

Example 25 with PhraseQuery

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

the class WeightedSpanTermExtractor method extract.

/**
   * Fills a <code>Map</code> with {@link WeightedSpanTerm}s using the terms from the supplied <code>Query</code>.
   * 
   * @param query
   *          Query to extract Terms from
   * @param terms
   *          Map to place created WeightedSpanTerms in
   * @throws IOException If there is a low-level I/O error
   */
protected void extract(Query query, float boost, Map<String, WeightedSpanTerm> terms) throws IOException {
    if (query instanceof BoostQuery) {
        BoostQuery boostQuery = (BoostQuery) query;
        extract(boostQuery.getQuery(), boost * boostQuery.getBoost(), terms);
    } else if (query instanceof BooleanQuery) {
        for (BooleanClause clause : (BooleanQuery) query) {
            if (!clause.isProhibited()) {
                extract(clause.getQuery(), boost, terms);
            }
        }
    } else if (query instanceof PhraseQuery) {
        PhraseQuery phraseQuery = ((PhraseQuery) query);
        Term[] phraseQueryTerms = phraseQuery.getTerms();
        if (phraseQueryTerms.length == 1) {
            extractWeightedSpanTerms(terms, new SpanTermQuery(phraseQueryTerms[0]), boost);
        } else {
            SpanQuery[] clauses = new SpanQuery[phraseQueryTerms.length];
            for (int i = 0; i < phraseQueryTerms.length; i++) {
                clauses[i] = new SpanTermQuery(phraseQueryTerms[i]);
            }
            // sum position increments beyond 1
            int positionGaps = 0;
            int[] positions = phraseQuery.getPositions();
            if (positions.length >= 2) {
                // positions are in increasing order.   max(0,...) is just a safeguard.
                positionGaps = Math.max(0, positions[positions.length - 1] - positions[0] - positions.length + 1);
            }
            //if original slop is 0 then require inOrder
            boolean inorder = (phraseQuery.getSlop() == 0);
            SpanNearQuery sp = new SpanNearQuery(clauses, phraseQuery.getSlop() + positionGaps, inorder);
            extractWeightedSpanTerms(terms, sp, boost);
        }
    } else if (query instanceof TermQuery || query instanceof SynonymQuery) {
        extractWeightedTerms(terms, query, boost);
    } else if (query instanceof SpanQuery) {
        extractWeightedSpanTerms(terms, (SpanQuery) query, boost);
    } else if (query instanceof ConstantScoreQuery) {
        final Query q = ((ConstantScoreQuery) query).getQuery();
        if (q != null) {
            extract(q, boost, terms);
        }
    } else if (query instanceof CommonTermsQuery) {
        // specialized since rewriting would change the result query 
        // this query is TermContext sensitive.
        extractWeightedTerms(terms, query, boost);
    } else if (query instanceof DisjunctionMaxQuery) {
        for (Query clause : ((DisjunctionMaxQuery) query)) {
            extract(clause, boost, terms);
        }
    } else if (query instanceof ToParentBlockJoinQuery) {
        extract(((ToParentBlockJoinQuery) query).getChildQuery(), boost, terms);
    } else if (query instanceof ToChildBlockJoinQuery) {
        extract(((ToChildBlockJoinQuery) query).getParentQuery(), boost, terms);
    } else if (query instanceof MultiPhraseQuery) {
        final MultiPhraseQuery mpq = (MultiPhraseQuery) query;
        final Term[][] termArrays = mpq.getTermArrays();
        final int[] positions = mpq.getPositions();
        if (positions.length > 0) {
            int maxPosition = positions[positions.length - 1];
            for (int i = 0; i < positions.length - 1; ++i) {
                if (positions[i] > maxPosition) {
                    maxPosition = positions[i];
                }
            }
            @SuppressWarnings({ "unchecked", "rawtypes" }) final List<SpanQuery>[] disjunctLists = new List[maxPosition + 1];
            int distinctPositions = 0;
            for (int i = 0; i < termArrays.length; ++i) {
                final Term[] termArray = termArrays[i];
                List<SpanQuery> disjuncts = disjunctLists[positions[i]];
                if (disjuncts == null) {
                    disjuncts = (disjunctLists[positions[i]] = new ArrayList<>(termArray.length));
                    ++distinctPositions;
                }
                for (Term aTermArray : termArray) {
                    disjuncts.add(new SpanTermQuery(aTermArray));
                }
            }
            int positionGaps = 0;
            int position = 0;
            final SpanQuery[] clauses = new SpanQuery[distinctPositions];
            for (List<SpanQuery> disjuncts : disjunctLists) {
                if (disjuncts != null) {
                    clauses[position++] = new SpanOrQuery(disjuncts.toArray(new SpanQuery[disjuncts.size()]));
                } else {
                    ++positionGaps;
                }
            }
            if (clauses.length == 1) {
                extractWeightedSpanTerms(terms, clauses[0], boost);
            } else {
                final int slop = mpq.getSlop();
                final boolean inorder = (slop == 0);
                SpanNearQuery sp = new SpanNearQuery(clauses, slop + positionGaps, inorder);
                extractWeightedSpanTerms(terms, sp, boost);
            }
        }
    } else if (query instanceof MatchAllDocsQuery) {
    //nothing
    } else if (query instanceof CustomScoreQuery) {
        extract(((CustomScoreQuery) query).getSubQuery(), boost, terms);
    } else if (isQueryUnsupported(query.getClass())) {
    // nothing
    } else {
        if (query instanceof MultiTermQuery && (!expandMultiTermQuery || !fieldNameComparator(((MultiTermQuery) query).getField()))) {
            return;
        }
        Query origQuery = query;
        final IndexReader reader = getLeafContext().reader();
        Query rewritten;
        if (query instanceof MultiTermQuery) {
            rewritten = MultiTermQuery.SCORING_BOOLEAN_REWRITE.rewrite(reader, (MultiTermQuery) query);
        } else {
            rewritten = origQuery.rewrite(reader);
        }
        if (rewritten != origQuery) {
            // only rewrite once and then flatten again - the rewritten query could have a special treatment
            // if this method is overwritten in a subclass or above in the next recursion
            extract(rewritten, boost, terms);
        } else {
            extractUnknownQuery(query, terms);
        }
    }
}