Java 类org.apache.lucene.search.suggest.analyzing.SuggestStopFilter 实例源码

@Override
public TokenStream create(TokenStream tokenStream) {
    if (removeTrailing) {
        return new StopFilter(tokenStream, stopWords);
    } else {
        return new SuggestStopFilter(tokenStream, stopWords);
    }
}

public void testThatSuggestStopFilterWorks() throws Exception {
    Settings settings = Settings.builder()
            .put("index.analysis.filter.my_stop.type", "stop")
            .put("index.analysis.filter.my_stop.remove_trailing", false)
            .put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
            .build();
    ESTestCase.TestAnalysis analysis = AnalysisTestsHelper.createTestAnalysisFromSettings(settings);
    TokenFilterFactory tokenFilter = analysis.tokenFilter.get("my_stop");
    assertThat(tokenFilter, instanceOf(StopTokenFilterFactory.class));
    Tokenizer tokenizer = new WhitespaceTokenizer();
    tokenizer.setReader(new StringReader("foo an"));
    TokenStream create = tokenFilter.create(tokenizer);
    assertThat(create, instanceOf(SuggestStopFilter.class));
}

@Override
public TokenStream create(TokenStream tokenStream) {
    if (removeTrailing) {
        return new StopFilter(tokenStream, stopWords);
    } else {
        return new SuggestStopFilter(tokenStream, stopWords);
    }
}

@Override
public TokenStream create(TokenStream tokenStream) {
    if (removeTrailing) {
        if (version.onOrAfter(Version.LUCENE_4_4)) {
            return new StopFilter(tokenStream, stopWords);
        } else {
            return new Lucene43StopFilter(enablePositionIncrements, tokenStream, stopWords);
        }
    } else {
        return new SuggestStopFilter(tokenStream, stopWords);
    }
}

@Override
public TokenStream create(final TokenStream tokenStream) {
    if (removeTrailing) {
        return new StopFilter(tokenStream, stopWords);
    } else {
        return new SuggestStopFilter(tokenStream, stopWords);
    }
}