Package org.apache.lucene.search

Examples of org.apache.lucene.search.IndexSearcher.search()

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    QueryParser parser = new QueryParser(Version.LUCENE_CURRENT, FIELD_NAME, analyzer);
    Query query = parser.parse(queryString);
    Searcher searcher = new IndexSearcher(ramDir);
    query = query.rewrite(reader);
    System.out.println("Searching for: " + query.toString(FIELD_NAME));
    TopDocs hits = searcher.search(query, 10);

    BoldFormatter formatter = new BoldFormatter();
    Highlighter highlighter = new Highlighter(formatter, new QueryScorer(
        query));
    highlighter.setTextFragmenter(new SimpleFragmenter(50));
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    try {
      IndexSearcher searcher = new IndexSearcher(dir);
      QueryParser qp = new QueryParser(Version.LUCENE_29, "txt", analyzer);
      Query q = qp.parse("西伯利亚");  //2008年底
      System.out.println(q);
      TopDocs tds = searcher.search(q, 10);
      System.out.println("======size:"+tds.totalHits+"========");
      for(ScoreDoc sd : tds.scoreDocs) {
        System.out.println(sd.score);
        System.out.println(searcher.doc(sd.doc).get("txt"));
      }
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    modifier.addDocument(doc);
  }

  private int getHitCount(Directory dir, Term term) throws IOException {
    IndexSearcher searcher = new IndexSearcher(dir, true);
    int hitCount = searcher.search(new TermQuery(term), null, 1000).totalHits;
    searcher.close();
    return hitCount;
  }

  public void testDeletesOnDiskFull() throws IOException {
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        }

        IndexSearcher searcher = newSearcher(newReader);
        ScoreDoc[] hits = null;
        try {
          hits = searcher.search(new TermQuery(searchTerm), null, 1000).scoreDocs;
        }
        catch (IOException e) {
          e.printStackTrace();
          fail(testName + ": exception when searching: " + e);
        }
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  private void doTestRank (String field, FieldScoreQuery.Type tp) throws Exception {
    IndexSearcher s = new IndexSearcher(dir, true);
    Query q = new FieldScoreQuery(field,tp);
    log("test: "+q);
    QueryUtils.check(random, q,s);
    ScoreDoc[] h = s.search(q, null, 1000).scoreDocs;
    assertEquals("All docs should be matched!",N_DOCS,h.length);
    String prevID = "ID"+(N_DOCS+1); // greater than all ids of docs in this test
    for (int i=0; i<h.length; i++) {
      String resID = s.doc(h[i].doc).get(ID_FIELD);
      log(i+".   score="+h[i].score+"  -  "+resID);
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  // Test that FieldScoreQuery returns docs with expected score.
  private void doTestExactScore (String field, FieldScoreQuery.Type tp) throws Exception {
    IndexSearcher s = new IndexSearcher(dir, true);
    Query q = new FieldScoreQuery(field,tp);
    TopDocs td = s.search(q,null,1000);
    assertEquals("All docs should be matched!",N_DOCS,td.totalHits);
    ScoreDoc sd[] = td.scoreDocs;
    for (ScoreDoc aSd : sd) {
      float score = aSd.score;
      log(s.explain(q, aSd.doc));
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    Object[] innerArray = new Object[s.getIndexReader().getSequentialSubReaders().length];

    boolean warned = false; // print warning once.
    for (int i=0; i<10; i++) {
      FieldScoreQuery q = new FieldScoreQuery(field,tp);
      ScoreDoc[] h = s.search(q, null, 1000).scoreDocs;
      assertEquals("All docs should be matched!",N_DOCS,h.length);
      IndexReader[] readers = s.getIndexReader().getSequentialSubReaders();
      for (int j = 0; j < readers.length; j++) {
        IndexReader reader = readers[j];
        try {
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    }
    s.close();
    // verify new values are reloaded (not reused) for a new reader
    s = new IndexSearcher(dir, true);
    FieldScoreQuery q = new FieldScoreQuery(field,tp);
    ScoreDoc[] h = s.search(q, null, 1000).scoreDocs;
    assertEquals("All docs should be matched!",N_DOCS,h.length);
    IndexReader[] readers = s.getIndexReader().getSequentialSubReaders();
    for (int j = 0; j < readers.length; j++) {
      IndexReader reader = readers[j];
      try {
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        writer.close();
        IndexReader reader = IndexReader.open(dir, policy, false);
        reader.deleteDocument(3*i+1);
        reader.setNorm(4*i+1, "content", 2.0F);
        IndexSearcher searcher = newSearcher(reader);
        ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
        assertEquals(16*(1+i), hits.length);
        // this is a commit
        if (VERBOSE) {
          System.out.println("TEST: close reader numOnCommit=" + policy.numOnCommit);
        }
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      assertEquals(2*(N+1)+1, policy.numOnInit);
      assertEquals(2*(N+2) - (wasOptimized ? 1:0), policy.numOnCommit);

      IndexSearcher searcher = new IndexSearcher(dir, false);
      ScoreDoc[] hits = searcher.search(query, null, 1000).scoreDocs;
      assertEquals(176, hits.length);

      // Simplistic check: just verify only the past N segments_N's still
      // exist, and, I can open a reader on each:
      long gen = SegmentInfos.getCurrentSegmentGeneration(dir);
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