Examples with AbstractCharFilterFactory org.opensearch.index.analysis.AbstractCharFilterFactory used on opensource projects

Example 1 with AbstractCharFilterFactory

use of org.opensearch.index.analysis.AbstractCharFilterFactory in project OpenSearch by opensearch-project.

the class TransportAnalyzeActionTests method setUp.

@Override
public void setUp() throws Exception {
    super.setUp();
    Settings settings = Settings.builder().put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString()).build();
    Settings indexSettings = Settings.builder().put(IndexMetadata.SETTING_VERSION_CREATED, Version.CURRENT).put(IndexMetadata.SETTING_INDEX_UUID, UUIDs.randomBase64UUID()).put("index.analysis.analyzer.custom_analyzer.tokenizer", "standard").put("index.analysis.analyzer.custom_analyzer.filter", "mock").put("index.analysis.normalizer.my_normalizer.type", "custom").put("index.analysis.char_filter.my_append.type", "append").put("index.analysis.char_filter.my_append.suffix", "baz").put("index.analyze.max_token_count", 100).putList("index.analysis.normalizer.my_normalizer.filter", "lowercase").build();
    this.indexSettings = IndexSettingsModule.newIndexSettings("index", indexSettings);
    Environment environment = TestEnvironment.newEnvironment(settings);
    AnalysisPlugin plugin = new AnalysisPlugin() {

        class MockFactory extends AbstractTokenFilterFactory {

            final CharacterRunAutomaton stopset;

            MockFactory(IndexSettings indexSettings, Environment env, String name, Settings settings) {
                super(indexSettings, name, settings);
                if (settings.hasValue("stopword")) {
                    this.stopset = new CharacterRunAutomaton(Automata.makeString(settings.get("stopword")));
                } else {
                    this.stopset = MockTokenFilter.ENGLISH_STOPSET;
                }
            }

            @Override
            public TokenStream create(TokenStream tokenStream) {
                return new MockTokenFilter(tokenStream, this.stopset);
            }
        }

        class DeprecatedTokenFilterFactory extends AbstractTokenFilterFactory implements NormalizingTokenFilterFactory {

            DeprecatedTokenFilterFactory(IndexSettings indexSettings, Environment env, String name, Settings settings) {
                super(indexSettings, name, settings);
            }

            @Override
            public TokenStream create(TokenStream tokenStream) {
                deprecationLogger.deprecate("deprecated_token_filter_create", "Using deprecated token filter [deprecated]");
                return tokenStream;
            }

            @Override
            public TokenStream normalize(TokenStream tokenStream) {
                deprecationLogger.deprecate("deprecated_token_filter_normalize", "Using deprecated token filter [deprecated]");
                return tokenStream;
            }
        }

        class AppendCharFilterFactory extends AbstractCharFilterFactory {

            final String suffix;

            AppendCharFilterFactory(IndexSettings indexSettings, Environment environment, String name, Settings settings) {
                super(indexSettings, name);
                this.suffix = settings.get("suffix", "bar");
            }

            @Override
            public Reader create(Reader reader) {
                return new AppendCharFilter(reader, suffix);
            }
        }

        @Override
        public Map<String, AnalysisProvider<CharFilterFactory>> getCharFilters() {
            return singletonMap("append", AppendCharFilterFactory::new);
        }

        @Override
        public Map<String, AnalysisProvider<TokenizerFactory>> getTokenizers() {
            return singletonMap("keyword", (indexSettings, environment, name, settings) -> TokenizerFactory.newFactory(name, () -> new MockTokenizer(MockTokenizer.KEYWORD, false)));
        }

        @Override
        public Map<String, AnalysisProvider<TokenFilterFactory>> getTokenFilters() {
            Map<String, AnalysisProvider<TokenFilterFactory>> filters = new HashMap<>();
            filters.put("mock", MockFactory::new);
            filters.put("deprecated", DeprecatedTokenFilterFactory::new);
            return filters;
        }

        @Override
        public List<PreConfiguredCharFilter> getPreConfiguredCharFilters() {
            return singletonList(PreConfiguredCharFilter.singleton("append", false, reader -> new AppendCharFilter(reader, "foo")));
        }
    };
    registry = new AnalysisModule(environment, singletonList(plugin)).getAnalysisRegistry();
    indexAnalyzers = registry.build(this.indexSettings);
    maxTokenCount = IndexSettings.MAX_TOKEN_COUNT_SETTING.getDefault(settings);
    idxMaxTokenCount = this.indexSettings.getMaxTokenCount();
}