Example usage for org.apache.lucene.analysis.miscellaneous WordDelimiterGraphFilter WordDelimiterGraphFilter

Introduction

In this page you can find the example usage for org.apache.lucene.analysis.miscellaneous WordDelimiterGraphFilter WordDelimiterGraphFilter.

Prototype

public WordDelimiterGraphFilter(TokenStream in, int configurationFlags, CharArraySet protWords) 

Source Link

Document

Creates a new WordDelimiterGraphFilter using WordDelimiterIterator#DEFAULT_WORD_DELIM_TABLE as its charTypeTable

Usage

From source file:com.qwazr.search.bench.test.MultiField.PayloadAnalyzer.java

License:Apache License

@Override
final protected TokenStreamComponents createComponents(final String fieldName) {

    final Tokenizer tokenizer = new UAX29URLEmailTokenizer();
    // Read the payload from the first token
    final FirstTokenPayloadFilter firstTokenPayloadFilter = new FirstTokenPayloadFilter(tokenizer);
    TokenStream stream = new WordDelimiterGraphFilter(firstTokenPayloadFilter,
            WordDelimiterGraphFilter.GENERATE_WORD_PARTS | WordDelimiterGraphFilter.GENERATE_NUMBER_PARTS
                    | WordDelimiterGraphFilter.SPLIT_ON_NUMERICS | WordDelimiterGraphFilter.SPLIT_ON_CASE_CHANGE
                    | WordDelimiterGraphFilter.CATENATE_ALL | WordDelimiterGraphFilter.CATENATE_NUMBERS
                    | WordDelimiterGraphFilter.CATENATE_WORDS | WordDelimiterGraphFilter.PRESERVE_ORIGINAL,
            CharArraySet.EMPTY_SET);//  w  w  w .  ja  v  a  2 s  .  c o  m
    stream = SmartAnalyzerSet.ascii(stream);
    // Set the payload to any token
    stream = firstTokenPayloadFilter.newSetter(stream);
    return new TokenStreamComponents(tokenizer, stream) {
        @Override
        protected void setReader(final Reader reader) {
            super.setReader(reader);
        }
    };
}

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From source file:org.elasticsearch.analysis.common.CommonAnalysisPlugin.java

License:Apache License

@Override
public List<PreConfiguredTokenFilter> getPreConfiguredTokenFilters() {
    List<PreConfiguredTokenFilter> filters = new ArrayList<>();
    filters.add(PreConfiguredTokenFilter.singleton("apostrophe", false, ApostropheFilter::new));
    filters.add(/*from   w  w  w . jav  a  2  s .  com*/
            PreConfiguredTokenFilter.singleton("arabic_normalization", true, ArabicNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("arabic_stem", false, ArabicStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("asciifolding", true, ASCIIFoldingFilter::new));
    filters.add(
            PreConfiguredTokenFilter.singleton("bengali_normalization", true, BengaliNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("brazilian_stem", false, BrazilianStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("cjk_bigram", false, CJKBigramFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("cjk_width", true, CJKWidthFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("classic", false, ClassicFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("common_grams", false,
            input -> new CommonGramsFilter(input, CharArraySet.EMPTY_SET)));
    filters.add(PreConfiguredTokenFilter.singleton("czech_stem", false, CzechStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("decimal_digit", true, DecimalDigitFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("delimited_payload_filter", false,
            input -> new DelimitedPayloadTokenFilter(input,
                    DelimitedPayloadTokenFilterFactory.DEFAULT_DELIMITER,
                    DelimitedPayloadTokenFilterFactory.DEFAULT_ENCODER)));
    filters.add(PreConfiguredTokenFilter.singleton("dutch_stem", false,
            input -> new SnowballFilter(input, new DutchStemmer())));
    filters.add(PreConfiguredTokenFilter.singleton("edge_ngram", false, input -> new EdgeNGramTokenFilter(input,
            EdgeNGramTokenFilter.DEFAULT_MIN_GRAM_SIZE, EdgeNGramTokenFilter.DEFAULT_MAX_GRAM_SIZE)));
    // TODO deprecate edgeNGram
    filters.add(PreConfiguredTokenFilter.singleton("edgeNGram", false, input -> new EdgeNGramTokenFilter(input,
            EdgeNGramTokenFilter.DEFAULT_MIN_GRAM_SIZE, EdgeNGramTokenFilter.DEFAULT_MAX_GRAM_SIZE)));
    filters.add(PreConfiguredTokenFilter.singleton("elision", true,
            input -> new ElisionFilter(input, FrenchAnalyzer.DEFAULT_ARTICLES)));
    filters.add(PreConfiguredTokenFilter.singleton("french_stem", false,
            input -> new SnowballFilter(input, new FrenchStemmer())));
    filters.add(
            PreConfiguredTokenFilter.singleton("german_normalization", true, GermanNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("german_stem", false, GermanStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("hindi_normalization", true, HindiNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("indic_normalization", true, IndicNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("keyword_repeat", false, KeywordRepeatFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("kstem", false, KStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("length", false,
            input -> new LengthFilter(input, 0, Integer.MAX_VALUE))); // TODO this one seems useless
    filters.add(PreConfiguredTokenFilter.singleton("limit", false,
            input -> new LimitTokenCountFilter(input, LimitTokenCountFilterFactory.DEFAULT_MAX_TOKEN_COUNT,
                    LimitTokenCountFilterFactory.DEFAULT_CONSUME_ALL_TOKENS)));
    filters.add(PreConfiguredTokenFilter.singleton("ngram", false, NGramTokenFilter::new));
    // TODO deprecate nGram
    filters.add(PreConfiguredTokenFilter.singleton("nGram", false, NGramTokenFilter::new));
    filters.add(
            PreConfiguredTokenFilter.singleton("persian_normalization", true, PersianNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("porter_stem", false, PorterStemFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("reverse", false, ReverseStringFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("russian_stem", false,
            input -> new SnowballFilter(input, "Russian")));
    filters.add(
            PreConfiguredTokenFilter.singleton("scandinavian_folding", true, ScandinavianFoldingFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("scandinavian_normalization", true,
            ScandinavianNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("shingle", false, input -> {
        TokenStream ts = new ShingleFilter(input);
        /**
         * We disable the graph analysis on this token stream
         * because it produces shingles of different size.
         * Graph analysis on such token stream is useless and dangerous as it may create too many paths
         * since shingles of different size are not aligned in terms of positions.
         */
        ts.addAttribute(DisableGraphAttribute.class);
        return ts;
    }));
    filters.add(PreConfiguredTokenFilter.singleton("snowball", false,
            input -> new SnowballFilter(input, "English")));
    filters.add(
            PreConfiguredTokenFilter.singleton("sorani_normalization", true, SoraniNormalizationFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("stemmer", false, PorterStemFilter::new));
    // The stop filter is in lucene-core but the English stop words set is in lucene-analyzers-common
    filters.add(PreConfiguredTokenFilter.singleton("stop", false,
            input -> new StopFilter(input, StopAnalyzer.ENGLISH_STOP_WORDS_SET)));
    filters.add(PreConfiguredTokenFilter.singleton("trim", false, TrimFilter::new));
    filters.add(
            PreConfiguredTokenFilter.singleton("truncate", false, input -> new TruncateTokenFilter(input, 10)));
    filters.add(PreConfiguredTokenFilter.singleton("type_as_payload", false, TypeAsPayloadTokenFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("unique", false, UniqueTokenFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("uppercase", true, UpperCaseFilter::new));
    filters.add(PreConfiguredTokenFilter.singleton("word_delimiter", false,
            input -> new WordDelimiterFilter(input,
                    WordDelimiterFilter.GENERATE_WORD_PARTS | WordDelimiterFilter.GENERATE_NUMBER_PARTS
                            | WordDelimiterFilter.SPLIT_ON_CASE_CHANGE | WordDelimiterFilter.SPLIT_ON_NUMERICS
                            | WordDelimiterFilter.STEM_ENGLISH_POSSESSIVE,
                    null)));
    filters.add(PreConfiguredTokenFilter.singleton("word_delimiter_graph", false,
            input -> new WordDelimiterGraphFilter(input, WordDelimiterGraphFilter.GENERATE_WORD_PARTS
                    | WordDelimiterGraphFilter.GENERATE_NUMBER_PARTS
                    | WordDelimiterGraphFilter.SPLIT_ON_CASE_CHANGE | WordDelimiterGraphFilter.SPLIT_ON_NUMERICS
                    | WordDelimiterGraphFilter.STEM_ENGLISH_POSSESSIVE, null)));
    return filters;
}

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