Java 类org.apache.lucene.analysis.cz.CzechAnalyzer 实例源码

public CzechAnalyzerProvider(IndexSettings indexSettings, Environment env, String name, Settings settings) {
    super(indexSettings, name, settings);
    analyzer = new CzechAnalyzer(
        Analysis.parseStopWords(env, indexSettings.getIndexVersionCreated(), settings, CzechAnalyzer.getDefaultStopSet()),
        Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET)
    );
    analyzer.setVersion(version);
}

@Inject
public CzechAnalyzerProvider(Index index, IndexSettingsService indexSettingsService, Environment env, @Assisted String name, @Assisted Settings settings) {
    super(index, indexSettingsService.getSettings(), name, settings);
    analyzer = new CzechAnalyzer(Analysis.parseStopWords(env, settings, CzechAnalyzer.getDefaultStopSet()),
                                 Analysis.parseStemExclusion(settings, CharArraySet.EMPTY_SET));
    analyzer.setVersion(version);
}

/**
 * Ritorna il set di stop words di default per una lingua
 *
 * @param language lingua
 * @return set di stop words
 */
public static CharArraySet getDefaultStopSet(String language) {
    try {
        if ("en".equalsIgnoreCase(language)) {
            return StandardAnalyzer.STOP_WORDS_SET;
        } else if ("es".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "spanish_stop.txt", StandardCharsets.UTF_8));
        } else if ("fr".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "french_stop.txt", StandardCharsets.UTF_8));
        } else if ("de".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "german_stop.txt", StandardCharsets.UTF_8));
        } else if ("pl".equalsIgnoreCase(language)) {
            return WordlistLoader.getWordSet(IOUtils.getDecodingReader(PolishAnalyzer.class, "stopwords.txt", StandardCharsets.UTF_8), "#");
        } else if ("pt".equalsIgnoreCase(language) || "br".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "portuguese_stop.txt", StandardCharsets.UTF_8));
        } else if ("it".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "italian_stop.txt", StandardCharsets.UTF_8));
        } else if ("cz".equalsIgnoreCase(language) || "sk".equalsIgnoreCase(language)) {
            return WordlistLoader.getWordSet(IOUtils.getDecodingReader(CzechAnalyzer.class, "stopwords.txt", StandardCharsets.UTF_8), "#");
        } else if ("tr".equalsIgnoreCase(language)) {
            return TurkishAnalyzer.loadStopwordSet(false, TurkishAnalyzer.class, "stopwords.txt", "#");
        } else if ("ru".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "russian_stop.txt", StandardCharsets.UTF_8));
        } else if ("ro".equalsIgnoreCase(language)) {
            return RomanianAnalyzer.loadStopwordSet(false, RomanianAnalyzer.class, "stopwords.txt", "#");
        } else if ("bg".equalsIgnoreCase(language)) {
            return BulgarianAnalyzer.loadStopwordSet(false, BulgarianAnalyzer.class, "stopwords.txt", "#");
        } else if ("nl".equalsIgnoreCase(language)) {
            return WordlistLoader.getSnowballWordSet(IOUtils.getDecodingReader(SnowballFilter.class, "dutch_stop.txt", StandardCharsets.UTF_8));
        }
    } catch (Exception ignored) {
        throw new RuntimeException("Unable to load default stopword set");
    }
    return StandardAnalyzer.STOP_WORDS_SET;

}

@Override
public CzechAnalyzer get() {
    return this.analyzer;
}

@Override
public CzechAnalyzer get() {
    return this.analyzer;
}