Example usage for org.apache.lucene.search IndexSearcher search

List of usage examples for org.apache.lucene.search IndexSearcher search

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Introduction

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

Prototype

public <C extends Collector, T> T search(Query query, CollectorManager<C, T> collectorManager)
        throws IOException

Source Link

Document

Lower-level search API.

Usage

From source file:aos.lucene.search.msc.BasicSearchingTest.java

License:Apache License

public void testTerm() throws Exception {

    Directory dir = FSDirectory.open(new File("target/index"));
    IndexReader reader = DirectoryReader.open(dir);
    IndexSearcher searcher = new IndexSearcher(reader);

    Term t = new Term("subject", "ant");
    Query query = new TermQuery(t);
    TopDocs docs = searcher.search(query, 10);
    assertEquals("Ant in Action", 1, docs.totalHits);

    t = new Term("subject", "junit");
    docs = searcher.search(new TermQuery(t), 10);
    assertEquals("Ant in Action, " + "JUnit in Action, Second Edition", 2, docs.totalHits);

    reader.close();/*w w  w. j a  v a 2s.  c om*/
    dir.close();
}

From source file:aos.lucene.search.msc.BasicSearchingTest.java

License:Apache License

/**
 * #A Obtain directory from TestUtil #B Create IndexSearcher #C Confirm one
 * hit for "ant" #D Confirm two hits for "junit"
 *//*from w  ww.j a v  a  2 s  . c o  m*/
public void testKeyword() throws Exception {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);

    Term t = new Term("isbn", "9781935182023");
    Query query = new TermQuery(t);
    TopDocs docs = searcher.search(query, 10);
    assertEquals("JUnit in Action, Second Edition", 1, docs.totalHits);

    searcher.close();
    dir.close();
}

From source file:aos.lucene.search.msc.BasicSearchingTest.java

License:Apache License

public void testQueryParser() throws Exception {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);

    QueryParser parser = new QueryParser(Version.LUCENE_46, "contents", new SimpleAnalyzer());

    Query query = parser.parse("+JUNIT +ANT -MOCK");
    TopDocs docs = searcher.search(query, 10);
    assertEquals(1, docs.totalHits);/*  w  ww  .ja va  2s. co m*/
    Document d = searcher.doc(docs.scoreDocs[0].doc);
    assertEquals("Ant in Action", d.get("title"));

    query = parser.parse("mock OR junit");
    docs = searcher.search(query, 10);
    assertEquals("Ant in Action, " + "JUnit in Action, Second Edition", 2, docs.totalHits);

    searcher.close();
    dir.close();
}

From source file:aos.lucene.search.msc.BooleanQueryTest.java

License:Apache License

public void testAnd() throws Exception {
    TermQuery searchingBooks = new TermQuery(new Term("subject", "search")); //#1

    Query books2010 = //#2
            NumericRangeQuery.newIntRange("pubmonth", 201001, //#2
                    201012, //#2
                    true, true); //#2

    BooleanQuery searchingBooks2010 = new BooleanQuery(); //#3
    searchingBooks2010.add(searchingBooks, BooleanClause.Occur.MUST); //#3
    searchingBooks2010.add(books2010, BooleanClause.Occur.MUST); //#3

    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);
    TopDocs matches = searcher.search(searchingBooks2010, 10);

    assertTrue(TestUtil.hitsIncludeTitle(searcher, matches, "Lucene in Action, Second Edition"));
    searcher.close();//w  ww  . ja v  a2s. c  om
    dir.close();
}

From source file:aos.lucene.search.msc.BooleanQueryTest.java

License:Apache License

public void testOr() throws Exception {
    TermQuery methodologyBooks = new TermQuery( //
            new Term("category", //
                    "/technology/computers/programming/methodology")); //

    TermQuery easternPhilosophyBooks = new TermQuery( //
            new Term("category", //
                    "/philosophy/eastern")); //

    BooleanQuery enlightenmentBooks = new BooleanQuery(); //
    enlightenmentBooks.add(methodologyBooks, //
            BooleanClause.Occur.SHOULD); //
    enlightenmentBooks.add(easternPhilosophyBooks, //
            BooleanClause.Occur.SHOULD); //

    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);
    TopDocs matches = searcher.search(enlightenmentBooks, 10);
    LOGGER.info("or = " + enlightenmentBooks);

    assertTrue(TestUtil.hitsIncludeTitle(searcher, matches, "Extreme Programming Explained"));
    assertTrue(TestUtil.hitsIncludeTitle(searcher, matches, "Tao Te Ching \u9053\u5FB7\u7D93"));
    searcher.close();//from ww w  .  j av  a 2s . co  m
    dir.close();
}

From source file:aos.lucene.search.msc.Explainer.java

License:Apache License

public static void main(String[] args) throws Exception {
    if (args.length != 2) {
        System.err.println("Usage: Explainer <index dir> <query>");
        System.exit(1);//from   ww  w. j av a2 s.  co m
    }

    String indexDir = args[0];
    String queryExpression = args[1];

    Directory directory = FSDirectory.open(new File(indexDir));
    QueryParser parser = new QueryParser(Version.LUCENE_46, "contents", new SimpleAnalyzer());
    Query query = parser.parse(queryExpression);

    LOGGER.info("Query: " + queryExpression);

    IndexSearcher searcher = new IndexSearcher(directory);
    TopDocs topDocs = searcher.search(query, 10);

    for (ScoreDoc match : topDocs.scoreDocs) {
        Explanation explanation = searcher.explain(query, match.doc); //#A

        LOGGER.info("----------");
        Document doc = searcher.doc(match.doc);
        LOGGER.info(doc.get("title"));
        LOGGER.info(explanation.toString()); //#B
    }
    searcher.close();
    directory.close();
}

From source file:aos.lucene.search.msc.Fragments.java

License:Apache License

public void testSearchSigs() throws Exception {
    Query query = null;/*from   ww  w  .j  av a 2 s . c  om*/
    Filter filter = null;
    TopDocs hits;
    TopFieldDocs fieldHits;
    Sort sort = null;
    Collector collector = null;
    int n = 10;
    IndexSearcher searcher = null;

    hits = searcher.search(query, n);
    hits = searcher.search(query, filter, n);
    fieldHits = searcher.search(query, filter, n, sort);
    searcher.search(query, collector);
    searcher.search(query, filter, collector);
}

From source file:aos.lucene.search.msc.NearRealTimeTest.java

License:Apache License

public void testNearRealTime() throws Exception {
    Directory dir = new RAMDirectory();
    IndexWriter writer = new IndexWriter(dir, new StandardAnalyzer(Version.LUCENE_46),
            IndexWriter.MaxFieldLength.UNLIMITED);
    for (int i = 0; i < 10; i++) {
        Document doc = new Document();
        doc.add(new Field("id", "" + i, Field.Store.NO, Field.Index.NOT_ANALYZED_NO_NORMS));
        doc.add(new Field("text", "aaa", Field.Store.NO, Field.Index.ANALYZED));
        writer.addDocument(doc);/*from   w  w  w.j a v a  2 s  . c  o  m*/
    }
    IndexReader reader = writer.getReader();
    IndexSearcher searcher = new IndexSearcher(reader);

    Query query = new TermQuery(new Term("text", "aaa"));
    TopDocs docs = searcher.search(query, 1);
    assertEquals(10, docs.totalHits);

    writer.deleteDocuments(new Term("id", "7"));

    Document doc = new Document();
    doc.add(new Field("id", "11", Field.Store.NO, Field.Index.NOT_ANALYZED_NO_NORMS));
    doc.add(new Field("text", "bbb", Field.Store.NO, Field.Index.ANALYZED));
    writer.addDocument(doc);

    IndexReader newReader = reader.reopen();
    assertFalse(reader == newReader);
    reader.close();
    searcher = new IndexSearcher(newReader);

    TopDocs hits = searcher.search(query, 10);
    assertEquals(9, hits.totalHits);

    query = new TermQuery(new Term("text", "bbb"));
    hits = searcher.search(query, 1);
    assertEquals(1, hits.totalHits);

    newReader.close();
    writer.close();
}

From source file:aos.lucene.search.msc.NumericRangeQueryTest.java

License:Apache License

public void testInclusive() throws Exception {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);
    // pub date of TTC was September 2006
    NumericRangeQuery query = NumericRangeQuery.newIntRange("pubmonth", 200605, 200609, true, true);

    TopDocs matches = searcher.search(query, 10);
    /*//from ww  w  .j  a  v  a  2s.co  m
    for(int i=0;i<matches.totalHits;i++) {
      LOGGER.info("match " + i + ": " + searcher.doc(matches.scoreDocs[i].doc).get("author"));
    }
    */
    assertEquals(1, matches.totalHits);
    searcher.close();
    dir.close();
}

From source file:aos.lucene.search.msc.NumericRangeQueryTest.java

License:Apache License

public void testExclusive() throws Exception {
    Directory dir = TestUtil.getBookIndexDirectory();
    IndexSearcher searcher = new IndexSearcher(dir);

    // pub date of TTC was September 2006
    NumericRangeQuery query = NumericRangeQuery.newIntRange("pubmonth", 200605, 200609, false, false);
    TopDocs matches = searcher.search(query, 10);
    assertEquals(0, matches.totalHits);//from   ww w  .j av a  2  s . com
    searcher.close();
    dir.close();
}