Examples with StandardTokenizer org.apache.lucene.analysis.standard.StandardTokenizer used on opensource projects

Example 76 with StandardTokenizer

use of org.apache.lucene.analysis.standard.StandardTokenizer in project lucene-arabic-analyzer by msarhan.

the class ArabicRootExtractorAnalyzer method createComponents.

/**
 * Creates {@link org.apache.lucene.analysis.Analyzer.TokenStreamComponents} used to tokenize
 * all the text in the provided {@link Reader}.
 *
 * @return {@link org.apache.lucene.analysis.Analyzer.TokenStreamComponents} built from an
 * {@link StandardTokenizer} filtered with {@link LowerCaseFilter}, {@link DecimalDigitFilter},
 * {@link StopFilter}, {@link ArabicRootExtractorStemFilter}, {@link SetKeywordMarkerFilter}
 */
@Override
protected TokenStreamComponents createComponents(String fieldName) {
    final Tokenizer source = new StandardTokenizer();
    TokenStream result = new org.apache.lucene.analysis.LowerCaseFilter(source);
    result = new DecimalDigitFilter(result);
    // the order here is important: the stopword list is not normalized!
    result = new org.apache.lucene.analysis.StopFilter(result, stopwords);
    // TODO maybe we should make ArabicNormalization filter also KeywordAttribute aware?!
    result = new ArabicNormalizationFilter(result);
    if (!stemExclusionSet.isEmpty()) {
        result = new SetKeywordMarkerFilter(result, stemExclusionSet);
    }
    return new TokenStreamComponents(source, new ArabicRootExtractorStemFilter(result));
}

Example 77 with StandardTokenizer

use of org.apache.lucene.analysis.standard.StandardTokenizer in project epadd by ePADD.

the class EnglishNumberAnalyzer method createComponents.

/*
 * Creates a {@link org.apache.lucene.analysis.Analyzer.TokenStreamComponents} which
 * tokenizes all the text in the reader that is set after the instantiation of this analyzer .
 *
 * @return A {@link org.apache.lucene.analysis.Analyzer.TokenStreamComponents} built from an {@link StandardTokenizer} filtered with {@link StandardFilter}, {@link EnglishPossessiveFilter}, {@link LowerCaseFilter}, {@link StopFilter} , {@link SetKeywordMarkerFilter} if a stem exclusion set is
 *         provided and {@link PorterStemFilter}.
 **/
protected TokenStreamComponents createComponents(String fieldName) {
    final Tokenizer source = new StandardNumberTokenizer();
    TokenStream result = new StandardFilter(source);
    // @TODO document what each of these filters do
    result = new EnglishPossessiveFilter(result);
    result = new LowerCaseFilter(result);
    result = new StopFilter(result, this.stopwords);
    if (!this.stemExclusionSet.isEmpty()) {
        result = new SetKeywordMarkerFilter((TokenStream) result, this.stemExclusionSet);
    }
    result = new PorterStemFilter((TokenStream) result);
    return new TokenStreamComponents(source, result);
}

Example 78 with StandardTokenizer

use of org.apache.lucene.analysis.standard.StandardTokenizer in project vertigo by KleeGroup.

the class DefaultAnalyzer method createComponents.

/**
 * Creates a TokenStream which tokenizes all the text in the provided Reader.
 *
 * @return A TokenStream build from a StandardTokenizer filtered with
 *         StandardFilter, StopFilter, FrenchStemFilter and LowerCaseFilter
 */
@Override
protected TokenStreamComponents createComponents(final String fieldName) {
    /* initialisation du token */
    final Tokenizer source = new StandardTokenizer();
    // -----
    /* on retire les élisions*/
    final CharArraySet elisionSet = new CharArraySet(Arrays.asList(LuceneConstants.ELISION_ARTICLES), true);
    TokenStream filter = new ElisionFilter(source, elisionSet);
    /* on retire article adjectif */
    filter = new StopFilter(filter, stopWords);
    /* on retire les accents */
    filter = new ASCIIFoldingFilter(filter);
    /* on met en minuscule */
    filter = new LowerCaseFilter(filter);
    return new TokenStreamComponents(source, filter);
}

Example 79 with StandardTokenizer

use of org.apache.lucene.analysis.standard.StandardTokenizer in project crate by crate.

the class StandardHtmlStripAnalyzer method createComponents.

@Override
protected TokenStreamComponents createComponents(final String fieldName) {
    final Tokenizer src = new StandardTokenizer();
    TokenStream tok = new LowerCaseFilter(src);
    if (!stopwords.isEmpty()) {
        tok = new StopFilter(tok, stopwords);
    }
    return new TokenStreamComponents(src, tok);
}

Example 80 with StandardTokenizer

use of org.apache.lucene.analysis.standard.StandardTokenizer in project nutch by apache.

the class LuceneTokenizer method createNGramTokenStream.

private TokenStream createNGramTokenStream(String content, int mingram, int maxgram) {
    Tokenizer tokenizer = new StandardTokenizer();
    tokenizer.setReader(new StringReader(content));
    tokenStream = new LowerCaseFilter(tokenizer);
    tokenStream = applyStemmer(stemFilterType);
    ShingleFilter shingleFilter = new ShingleFilter(tokenStream, mingram, maxgram);
    shingleFilter.setOutputUnigrams(false);
    tokenStream = (TokenStream) shingleFilter;
    return tokenStream;
}