Example usage for org.apache.lucene.search Query toString

List of usage examples for org.apache.lucene.search Query toString

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Introduction

In this page you can find the example usage for org.apache.lucene.search Query toString.

Prototype

@Override
public final String toString()

Source Link

Document

Prints a query to a string.

Usage

From source file:ai.castor.idf.IDFScorer.java

License:Apache License

public double calcIDF(String query, String answer, boolean analyze) throws ParseException {
    Analyzer analyzer;//from www  .  j ava 2s  .  c  om
    if (analyze) {
        analyzer = new EnglishAnalyzer(StopFilter.makeStopSet(stopWords));
    } else {
        analyzer = new WhitespaceAnalyzer();
    }

    QueryParser qp = new QueryParser(FIELD_BODY, analyzer);
    ClassicSimilarity similarity = new ClassicSimilarity();

    String escapedQuery = qp.escape(query);
    Query question = qp.parse(escapedQuery);
    HashSet<String> questionTerms = new HashSet<>(Arrays.asList(question.toString().trim().split("\\s+")));

    double idf = 0.0;
    HashSet<String> seenTerms = new HashSet<>();

    String[] terms = answer.split("\\s+");
    for (String term : terms) {
        try {
            TermQuery q = (TermQuery) qp.parse(term);
            Term t = q.getTerm();

            if (questionTerms.contains(t.toString()) && !seenTerms.contains(t.toString())) {
                idf += similarity.idf(reader.docFreq(t), reader.numDocs());
                seenTerms.add(t.toString());
            } else {
                idf += 0.0;
            }
        } catch (Exception e) {
            continue;
        }
    }
    return idf;
}

From source file:aos.lucene.search.advanced.MultiPhraseQueryTest.java

License:Apache License

public void testQueryParser() throws Exception {
    SynonymEngine engine = new SynonymEngine() {
        public String[] getSynonyms(String s) {
            if (s.equals("quick"))
                return new String[] { "fast" };
            else/*  w  ww  .ja v a  2 s  .c om*/
                return null;
        }
    };

    Query q = new QueryParser(Version.LUCENE_46, "field", new SynonymAnalyzer(engine)).parse("\"quick fox\"");

    assertEquals("analyzed", "field:\"(quick fast) fox\"", q.toString());
    assertTrue("parsed as MultiPhraseQuery", q instanceof MultiPhraseQuery);
}

From source file:aos.lucene.search.advanced.SortingExample.java

License:Apache License

public void displayResults(Query query, Sort sort) //
        throws IOException {
    IndexSearcher searcher = new IndexSearcher(directory);

    searcher.setDefaultFieldSortScoring(true, false); //

    TopDocs results = searcher.search(query, null, //
            20, sort); //

    LOGGER.info("\nResults for: " + //
            query.toString() + " sorted by " + sort);

    LOGGER.info(StringUtils.rightPad("Title", 30) + StringUtils.rightPad("pubmonth", 10)
            + StringUtils.center("id", 4) + StringUtils.center("score", 15));

    PrintStream out = new PrintStream(System.out, true, "UTF-8"); //

    DecimalFormat scoreFormatter = new DecimalFormat("0.######");
    for (ScoreDoc sd : results.scoreDocs) {
        int docID = sd.doc;
        float score = sd.score;
        Document doc = searcher.doc(docID);
        out.println(StringUtils.rightPad( //
                StringUtils.abbreviate(doc.get("title"), 29), 30) + //
                StringUtils.rightPad(doc.get("pubmonth"), 10) + //
                StringUtils.center("" + docID, 4) + //
                StringUtils.leftPad( //
                        scoreFormatter.format(score), 12)); //
        out.println("   " + doc.get("category"));
        //out.println(searcher.explain(query, docID));   //
    }// www.j av  a 2s  .c o m

    searcher.close();
}

From source file:at.ac.univie.mminf.luceneSKOS.analysis.SKOSLabelFilterTest.java

License:Apache License

@Test
public void queryParserSearch() throws IOException, ParseException {

    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", Field.Store.YES,
            Field.Index.ANALYZED));

    writer.addDocument(doc);//from  ww  w. j  a v a  2s . c om

    searcher = new IndexSearcher(IndexReader.open(writer, false));

    Query query = new QueryParser(Version.LUCENE_36, "content", skosAnalyzer).parse("\"fox jumps\"");

    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    Assert.assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());

    query = new QueryParser(Version.LUCENE_36, "content", new StandardAnalyzer(Version.LUCENE_36))
            .parse("\"fox jumps\"");
    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:\"fox jumps\"", query.toString());
    Assert.assertEquals("org.apache.lucene.search.PhraseQuery", query.getClass().getName());

}

From source file:at.ac.univie.mminf.luceneSKOS.queryparser.flexible.standard.SKOSStandardQueryParserTest.java

License:Apache License

@Test
public void queryParserSearch() throws IOException, QueryNodeException {

    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", TextField.TYPE_STORED));

    writer.addDocument(doc);/*ww  w  . j ava2  s . co  m*/

    searcher = new IndexSearcher(DirectoryReader.open(writer, false));

    Query query = new SKOSStandardQueryParser(skosAnalyzer).parse("\"fox jumps\"", "content");

    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    Assert.assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());

    query = new StandardQueryParser(new StandardAnalyzer(matchVersion)).parse("\"fox jumps\"", "content");
    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:\"fox jumps\"", query.toString());
    Assert.assertEquals("org.apache.lucene.search.PhraseQuery", query.getClass().getName());

}

From source file:at.ac.univie.mminf.luceneSKOS.queryparser.flexible.standard.SKOSStandardQueryParserTest.java

License:Apache License

@Test
public void queryParserSearchWithBoosts() throws IOException, QueryNodeException {

    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", TextField.TYPE_STORED));

    writer.addDocument(doc);/*  w ww  .jav a 2 s  .c o m*/

    searcher = new IndexSearcher(DirectoryReader.open(writer, false));

    SKOSStandardQueryParser parser = new SKOSStandardQueryParser(skosAnalyzer);
    parser.setBoost(SKOSType.ALT, 0.5f);

    Query query = parser.parse("\"fox jumps\"", "content");

    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    // boosts do not work in phrase queries
    Assert.assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    Assert.assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());

    query = parser.parse("fox jumps", "content");

    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:fox (content:jumps content:hops^0.5 content:leaps^0.5)", query.toString());
    Assert.assertEquals("org.apache.lucene.search.BooleanQuery", query.getClass().getName());

    query = new SKOSStandardQueryParser(new StandardAnalyzer(matchVersion)).parse("fox jumps", "content");
    Assert.assertEquals(1, TestUtil.hitCount(searcher, query));

    Assert.assertEquals("content:fox content:jumps", query.toString());
    Assert.assertEquals("org.apache.lucene.search.BooleanQuery", query.getClass().getName());

}

From source file:at.ac.univie.mminf.luceneSKOS.test.SKOSLabelFilterTest.java

License:Apache License

@Test
public void queryParserSearch() throws IOException, QueryNodeException {
    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", TextField.TYPE_STORED));
    writer.addDocument(doc);/*from  ww w.  j av a2  s.co  m*/
    searcher = new IndexSearcher(DirectoryReader.open(writer, false));
    Query query = new StandardQueryParser(skosAnalyzer).parse("\"fox jumps\"", "content");
    assertEquals(1, searcher.search(query, 1).totalHits);
    assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());
    query = new StandardQueryParser(new StandardAnalyzer()).parse("\"fox jumps\"", "content");
    assertEquals(1, searcher.search(query, 1).totalHits);
    assertEquals("content:\"fox jumps\"", query.toString());
    assertEquals("org.apache.lucene.search.PhraseQuery", query.getClass().getName());
}

From source file:at.ac.univie.mminf.luceneSKOS.test.SKOSStandardQueryParserTest.java

License:Apache License

@Test
public void queryParserSearch() throws IOException, QueryNodeException {

    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", TextField.TYPE_STORED));

    writer.addDocument(doc);/*w w w .j  ava  2s  .com*/

    searcher = new IndexSearcher(DirectoryReader.open(writer, false));

    Query query = new SKOSStandardQueryParser(skosAnalyzer).parse("\"fox jumps\"", "content");

    assertEquals(1, searcher.search(query, 1).totalHits);

    assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());

    query = new StandardQueryParser(new StandardAnalyzer()).parse("\"fox jumps\"", "content");
    assertEquals(1, searcher.search(query, 1).totalHits);

    assertEquals("content:\"fox jumps\"", query.toString());
    assertEquals("org.apache.lucene.search.PhraseQuery", query.getClass().getName());

}

From source file:at.ac.univie.mminf.luceneSKOS.test.SKOSStandardQueryParserTest.java

License:Apache License

@Test
public void queryParserSearchWithBoosts() throws IOException, QueryNodeException {

    Document doc = new Document();
    doc.add(new Field("content", "The quick brown fox jumps over the lazy dog", TextField.TYPE_STORED));

    writer.addDocument(doc);//ww w  .java  2s  .c om

    searcher = new IndexSearcher(DirectoryReader.open(writer, false));

    SKOSStandardQueryParser parser = new SKOSStandardQueryParser(skosAnalyzer);
    parser.setBoost(SKOSType.ALT, 0.5f);

    Query query = parser.parse("\"fox jumps\"", "content");

    assertEquals(1, searcher.search(query, 1).totalHits);

    // boosts do not work in phrase queries
    assertEquals("content:\"fox (jumps hops leaps)\"", query.toString());
    assertEquals("org.apache.lucene.search.MultiPhraseQuery", query.getClass().getName());

    query = parser.parse("fox jumps", "content");

    assertEquals(1, searcher.search(query, 1).totalHits);

    assertEquals("content:fox (content:jumps content:hops^0.5 content:leaps^0.5)", query.toString());
    assertEquals("org.apache.lucene.search.BooleanQuery", query.getClass().getName());

    query = new SKOSStandardQueryParser(new StandardAnalyzer()).parse("fox jumps", "content");
    assertEquals(1, searcher.search(query, 1).totalHits);

    assertEquals("content:fox content:jumps", query.toString());
    assertEquals("org.apache.lucene.search.BooleanQuery", query.getClass().getName());

}

From source file:au.org.ala.names.search.ALANameSearcher.java

License:Open Source License

/**
 * Multiple genus indicate that an unresolved homonym exists for the supplied
 * search details.//from   w  w w  . j  a  v  a2  s.c o m
 *
 * @param cl   The classification to test
 * @param rank The rank level of the homonym being tested either RankType.GENUS or RankType.SPECIES
 */
public TopDocs getIRMNGGenus(LinnaeanRankClassification cl, RankType rank) {
    if (cl != null && (cl.getGenus() != null || cl.getSpecies() != null)) {

        try {

            String searchString = "+rank:" + rank + " " + cl.getLuceneSearchString(false).trim();

            log.debug("Search string : " + searchString + " classification : " + cl);
            Query query = queryParser.get().parse(searchString);
            log.debug("getIRMNG query: " + query.toString());
            return irmngSearcher.search(query, 10);

        } catch (Exception e) {
            log.warn("Error searching IRMNG index.", e);
        }
    }
    return null;
}