Package org.apache.lucene.search.spell

Examples of org.apache.lucene.search.spell.Dictionary

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        indexReader = IndexReader.open(indexDir);
        // 1. Create content spellIndex
        File spellDictionaryFile = new File(spellDictionaryPath);
        Directory contentSpellIndexDirectory = FSDirectory.open(new File(spellDictionaryPath + CONTENT_PATH));//true
        SpellChecker contentSpellChecker = new SpellChecker(contentSpellIndexDirectory);
        Dictionary contentDictionary = new LuceneDictionary(indexReader, OlatDocument.CONTENT_FIELD_NAME);
        contentSpellChecker.indexDictionary(contentDictionary);
        // 2. Create title spellIndex
        Directory titleSpellIndexDirectory = FSDirectory.open(new File(spellDictionaryPath + TITLE_PATH));//true
        SpellChecker titleSpellChecker = new SpellChecker(titleSpellIndexDirectory);
        Dictionary titleDictionary = new LuceneDictionary(indexReader, OlatDocument.TITLE_FIELD_NAME);
        titleSpellChecker.indexDictionary(titleDictionary);
        // 3. Create description spellIndex
        Directory descriptionSpellIndexDirectory = FSDirectory.open(new File(spellDictionaryPath + DESCRIPTION_PATH));//true
        SpellChecker descriptionSpellChecker = new SpellChecker(descriptionSpellIndexDirectory);
        Dictionary descriptionDictionary = new LuceneDictionary(indexReader, OlatDocument.DESCRIPTION_FIELD_NAME);
        descriptionSpellChecker.indexDictionary(descriptionDictionary);
        // 4. Create author spellIndex
        Directory authorSpellIndexDirectory = FSDirectory.open(new File(spellDictionaryPath + AUTHOR_PATH));//true
        SpellChecker authorSpellChecker = new SpellChecker(authorSpellIndexDirectory);
        Dictionary authorDictionary = new LuceneDictionary(indexReader, OlatDocument.AUTHOR_FIELD_NAME);
        authorSpellChecker.indexDictionary(authorDictionary);
       
        // Merge all part spell indexes (content,title etc.) to one common spell index
        Directory spellIndexDirectory = FSDirectory.open(spellDictionaryFile);//true
        IndexWriter merger = new IndexWriter(spellIndexDirectory, new StandardAnalyzer(Version.LUCENE_CURRENT), true, IndexWriter.MaxFieldLength.UNLIMITED);
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    if (null == termSourceField) {
      throw new SolrException
        (SolrException.ErrorCode.SERVER_ERROR, "can't rebuild spellchecker index without termSourceField configured");
    }

    Dictionary dictionary = getDictionary(req);
    spellChecker.clearIndex();
    spellChecker.indexDictionary(dictionary, new IndexWriterConfig(req.getCore().getSolrConfig().luceneMatchVersion, null), false);
    reopen();
  }
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                              {
                                 IndexReader reader = handler.getIndexReader();
                                 try
                                 {
                                    long time = System.currentTimeMillis();
                                    Dictionary dict = new LuceneDictionary(reader, FieldNames.FULLTEXT);
                                    LOG.debug("Starting spell checker index refresh");
                                    spellChecker.indexDictionary(dict);
                                    time = System.currentTimeMillis() - time;
                                    time = time / 1000;
                                    LOG.info("Spell checker index refreshed in: " + new Long(time) + " s.");
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      writer.addDocument(doc);
    }
    writer.commit();
    writer.close();
    IndexReader ir = DirectoryReader.open(dir);
    Dictionary dictionary = new DocumentDictionary(ir, FIELD_NAME, WEIGHT_FIELD_NAME, PAYLOAD_FIELD_NAME);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      assertTrue(f.equals(new BytesRef(doc.get(FIELD_NAME))));
      assertEquals(tfp.weight(), doc.getField(WEIGHT_FIELD_NAME).numericValue().longValue());
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      writer.addDocument(doc);
    }
    writer.commit();
    writer.close();
    IndexReader ir = DirectoryReader.open(dir);
    Dictionary dictionary = new DocumentDictionary(ir, FIELD_NAME, WEIGHT_FIELD_NAME);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      assertTrue(f.equals(new BytesRef(doc.get(FIELD_NAME))));
      assertEquals(tfp.weight(), doc.getField(WEIGHT_FIELD_NAME).numericValue().longValue());
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      assertTrue(null!=docs.remove(termToDel));
    }
   
    IndexReader ir = DirectoryReader.open(dir);
    assertEquals(ir.numDocs(), docs.size());
    Dictionary dictionary = new DocumentDictionary(ir, FIELD_NAME, WEIGHT_FIELD_NAME);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      assertTrue(f.equals(new BytesRef(doc.get(FIELD_NAME))));
      assertEquals(tfp.weight(), doc.getField(WEIGHT_FIELD_NAME).numericValue().longValue());
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    IndexReader ir = DirectoryReader.open(dir);
    Set<SortField> sortFields = new HashSet<SortField>();
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_1, SortField.Type.LONG));
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_2, SortField.Type.LONG));
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_3, SortField.Type.LONG));
    Dictionary dictionary = new DocumentExpressionDictionary(ir, FIELD_NAME, "((w1 + w2) - w3)", sortFields, PAYLOAD_FIELD_NAME);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      long w1 = doc.getField(WEIGHT_FIELD_NAME_1).numericValue().longValue();
      long w2 = doc.getField(WEIGHT_FIELD_NAME_2).numericValue().longValue();
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    IndexReader ir = DirectoryReader.open(dir);
    Set<SortField> sortFields = new HashSet<SortField>();
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_1, SortField.Type.LONG));
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_2, SortField.Type.LONG));
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_3, SortField.Type.LONG));
    Dictionary dictionary = new DocumentExpressionDictionary(ir, FIELD_NAME, "w1 + (0.2 * w2) - (w3 - w1)/2", sortFields);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      long w1 = doc.getField(WEIGHT_FIELD_NAME_1).numericValue().longValue();
      long w2 = doc.getField(WEIGHT_FIELD_NAME_2).numericValue().longValue();
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    assertTrue("NumDocs should be > 0 but was " + ir.numDocs(), ir.numDocs() > 0);
    assertEquals(ir.numDocs(), docs.size());
    Set<SortField> sortFields = new HashSet<SortField>();
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_1, SortField.Type.LONG));
    sortFields.add(new SortField(WEIGHT_FIELD_NAME_2, SortField.Type.LONG));
    Dictionary dictionary = new DocumentExpressionDictionary(ir, FIELD_NAME, "w2-w1", sortFields, PAYLOAD_FIELD_NAME);
    InputIterator tfp = (InputIterator) dictionary.getWordsIterator();
    BytesRef f;
    while((f = tfp.next())!=null) {
      Document doc = docs.remove(f.utf8ToString());
      long w1 = doc.getField(WEIGHT_FIELD_NAME_1).numericValue().longValue();
      long w2 = doc.getField(WEIGHT_FIELD_NAME_2).numericValue().longValue();
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    Directory dir = newDirectory();
    IndexWriter writer = new IndexWriter(dir, newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random())));
    writer.commit();
    writer.close();
    IndexReader ir = DirectoryReader.open(dir);
    Dictionary dictionary = new HighFrequencyDictionary(ir, "bogus", 0.1f);
    BytesRefIterator tf = dictionary.getWordsIterator();
    assertNull(tf.getComparator());
    assertNull(tf.next());
    dir.close();
  }
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Related Classes of org.apache.lucene.search.spell.Dictionary

  • er.examples.textsearchdemo.components.sections.DidYouMean
  • er.examples.textsearchdemo.components.sections.SpellCheck
  • org.apache.lucene.search.suggest.DocumentDictionaryTest
  • org.apache.lucene.search.suggest.DocumentExpressionDictionaryTest
  • org.apache.lucene.search.suggest.DocumentValueSourceDictionaryTest
  • org.apache.lucene.search.suggest.TestHighFrequencyDictionary
  • org.apache.solr.handler.SpellCheckerRequestHandler
  • org.exoplatform.services.jcr.impl.core.query.lucene.spell.LuceneSpellChecker$InternalSpellChecker
  • org.olat.search.service.spell.SearchSpellChecker
  • railo.runtime.search.lucene2.LuceneSearchCollection
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