Examples of org.apache.lucene.analysis.AnalyzerWrapper

org.apache.lucene.analysis.AnalyzerWrapper
Extension to {@link Analyzer} suitable for Analyzers which wrapother Analyzers.
{@link #getWrappedAnalyzer(String)} allows the Analyzerto wrap multiple Analyzers which are selected on a per field basis.
{@link #wrapComponents(String,Analyzer.TokenStreamComponents)} allows theTokenStreamComponents of the wrapped Analyzer to then be wrapped (such as adding a new {@link TokenFilter} to form new TokenStreamComponents.

    _defaultMissingFieldType = defaultMissingFieldType;
    _defaultMissingFieldProps = defaultMissingFieldProps;
    _configuration = configuration;
    _fieldLessFieldTypeDefinition = new FieldLessFieldTypeDefinition();


    _baseAnalyzerForQuery = new AnalyzerWrapper() {
      @Override
      protected Analyzer getWrappedAnalyzer(String fieldName) {
        FieldTypeDefinition fieldTypeDefinition;
        try {
          fieldTypeDefinition = getFieldTypeDefinition(fieldName);
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
        if (fieldTypeDefinition == null) {
          return defaultAnalyzerForQuerying;
        }
        return fieldTypeDefinition.getAnalyzerForQuery(fieldName);
      }


      @Override
      protected TokenStreamComponents wrapComponents(String fieldName, TokenStreamComponents components) {
        return components;
      }
    };


    _baseAnalyzerForIndex = new AnalyzerWrapper() {
      @Override
      protected Analyzer getWrappedAnalyzer(String fieldName) {
        FieldTypeDefinition fieldTypeDefinition;
        try {
          fieldTypeDefinition = getFieldTypeDefinition(fieldName);

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    if (grams == 1) {
      return other;
    } else {
      // TODO: use ShingleAnalyzerWrapper?
      // Tack on ShingleFilter to the end, to generate token ngrams:
      return new AnalyzerWrapper(other.getReuseStrategy()) {
        @Override
        protected Analyzer getWrappedAnalyzer(String fieldName) {
          return other;
        }

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    IndexWriter w = null;
    IndexWriter w2 = null;
    AtomicReader r = null;
    boolean success = false;
    try {
      Analyzer gramAnalyzer = new AnalyzerWrapper(Analyzer.PER_FIELD_REUSE_STRATEGY) {
          @Override
          protected Analyzer getWrappedAnalyzer(String fieldName) {
            return indexAnalyzer;
          }

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    fieldAnalyzers.put( "field_super_exact", new MockAnalyzer( random(), MockTokenizer.WHITESPACE, false ) );
    fieldAnalyzers.put( "field_characters", new MockAnalyzer( random(), new CharacterRunAutomaton( new RegExp(".").toAutomaton() ), true ) );
    fieldAnalyzers.put( "field_tripples", new MockAnalyzer( random(), new CharacterRunAutomaton( new RegExp("...").toAutomaton() ), true ) );
    fieldAnalyzers.put( "field_sliced", fieldAnalyzers.get( "field" ) );
    fieldAnalyzers.put( "field_der_red", fieldAnalyzers.get( "field" ) );  // This is required even though we provide a token stream
    Analyzer analyzer = new AnalyzerWrapper() {
      public Analyzer getWrappedAnalyzer(String fieldName) {
        return fieldAnalyzers.get( fieldName );
      }
    };

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    if (grams == 1) {
      return other;
    } else {
      // TODO: use ShingleAnalyzerWrapper?
      // Tack on ShingleFilter to the end, to generate token ngrams:
      return new AnalyzerWrapper(other.getReuseStrategy()) {
        @Override
        protected Analyzer getWrappedAnalyzer(String fieldName) {
          return other;
        }

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    IndexWriter w2 = null;
    AtomicReader r = null;
    boolean success = false;
    count = 0;
    try {
      Analyzer gramAnalyzer = new AnalyzerWrapper(Analyzer.PER_FIELD_REUSE_STRATEGY) {
          @Override
          protected Analyzer getWrappedAnalyzer(String fieldName) {
            return indexAnalyzer;
          }

View Full Code Here

    fieldAnalyzers.put( "field_super_exact", new MockAnalyzer( random(), MockTokenizer.WHITESPACE, false ) );
    fieldAnalyzers.put( "field_characters", new MockAnalyzer( random(), new CharacterRunAutomaton( new RegExp(".").toAutomaton() ), true ) );
    fieldAnalyzers.put( "field_tripples", new MockAnalyzer( random(), new CharacterRunAutomaton( new RegExp("...").toAutomaton() ), true ) );
    fieldAnalyzers.put( "field_sliced", fieldAnalyzers.get( "field" ) );
    fieldAnalyzers.put( "field_der_red", fieldAnalyzers.get( "field" ) );  // This is required even though we provide a token stream
    Analyzer analyzer = new AnalyzerWrapper() {
      public Analyzer getWrappedAnalyzer(String fieldName) {
        return fieldAnalyzers.get( fieldName );
      }
    };

View Full Code Here

    _defaultMissingFieldType = defaultMissingFieldType;
    _defaultMissingFieldProps = defaultMissingFieldProps;
    _configuration = configuration;
    _fieldLessFieldTypeDefinition = new FieldLessFieldTypeDefinition();


    _baseAnalyzerForQuery = new AnalyzerWrapper() {
      @Override
      protected Analyzer getWrappedAnalyzer(String fieldName) {
        if (isBuiltInField(fieldName)) {
          return _keywordAnalyzer;
        }
        FieldTypeDefinition fieldTypeDefinition;
        try {
          fieldTypeDefinition = getFieldTypeDefinition(fieldName);
        } catch (IOException e) {
          throw new RuntimeException(e);
        }
        if (fieldTypeDefinition == null) {
          return defaultAnalyzerForQuerying;
        }
        return fieldTypeDefinition.getAnalyzerForQuery(fieldName);
      }


      @Override
      protected TokenStreamComponents wrapComponents(String fieldName, TokenStreamComponents components) {
        return components;
      }
    };


    _baseAnalyzerForIndex = new AnalyzerWrapper() {
      @Override
      protected Analyzer getWrappedAnalyzer(String fieldName) {
        FieldTypeDefinition fieldTypeDefinition;
        try {
          fieldTypeDefinition = getFieldTypeDefinition(fieldName);

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      }
    }
  }


  private Analyzer getGramAnalyzer() {
    return new AnalyzerWrapper(Analyzer.PER_FIELD_REUSE_STRATEGY) {
      @Override
      protected Analyzer getWrappedAnalyzer(String fieldName) {
        return indexAnalyzer;
      }

View Full Code Here

    if (grams == 1) {
      return other;
    } else {
      // TODO: use ShingleAnalyzerWrapper?
      // Tack on ShingleFilter to the end, to generate token ngrams:
      return new AnalyzerWrapper(other.getReuseStrategy()) {
        @Override
        protected Analyzer getWrappedAnalyzer(String fieldName) {
          return other;
        }

View Full Code Here

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