Examples of org.apache.lucene.analysis.ReusableAnalyzerBase

org.apache.lucene.analysis.ReusableAnalyzerBase
An convenience subclass of Analyzer that makes it easy to implement {@link TokenStream} reuse.
ReusableAnalyzerBase is a simplification of Analyzer that supports easy reuse for the most common use-cases. Analyzers such as {@link PerFieldAnalyzerWrapper} that behave differently depending upon thefield name need to subclass Analyzer directly instead.

To prevent consistency problems, this class does not allow subclasses to extend {@link #reusableTokenStream(String,Reader)} or{@link #tokenStream(String,Reader)} directly. Instead, subclasses mustimplement {@link #createComponents(String,Reader)}.

        add(randomNonEmptyString(), randomNonEmptyString(), random.nextBoolean());
      }
      final SynonymMap map = b.build();
      final boolean ignoreCase = random.nextBoolean();
      
      final Analyzer analyzer = new ReusableAnalyzerBase() {
        @Override
        protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
          Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.SIMPLE, true);
          return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, ignoreCase));
        }

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    SolrSynonymParser parser = new SolrSynonymParser(true, true, new MockAnalyzer(random));
    parser.add(new StringReader(testFile));
    final SynonymMap map = parser.build();
      
    Analyzer analyzer = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, true);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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    add("a", "aa", keepOrig);
    add("b", "bb", keepOrig);
    add("z x c v", "zxcv", keepOrig);
    add("x c", "xc", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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    final boolean keepOrig = false;
    add("a b", "ab", keepOrig);
    add("a b", "ab", keepOrig);
    add("a b", "ab", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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    final boolean keepOrig = false;
    add("a b", "ab", keepOrig);
    add("a b", "ab", keepOrig);
    add("a b", "ab", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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  public void testRecursion() throws Exception {
    b = new SynonymMap.Builder(true);
    final boolean keepOrig = false;
    add("zoo", "zoo", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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    b = new SynonymMap.Builder(true);
    final boolean keepOrig = false;
    add("zoo", "zoo", keepOrig);
    add("zoo", "zoo zoo", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

View Full Code Here

    add("a", "aa", keepOrig);
    add("b", "bb", keepOrig);
    add("z x c v", "zxcv", keepOrig);
    add("x c", "xc", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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  public void testRecursion3() throws Exception {
    b = new SynonymMap.Builder(true);
    final boolean keepOrig = true;
    add("zoo zoo", "zoo", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

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    b = new SynonymMap.Builder(true);
    final boolean keepOrig = true;
    add("zoo zoo", "zoo", keepOrig);
    add("zoo", "zoo zoo", keepOrig);
    final SynonymMap map = b.build();
    Analyzer a = new ReusableAnalyzerBase() {
      @Override
      protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
        Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
        return new TokenStreamComponents(tokenizer, new SynonymFilter(tokenizer, map, true));
      }

View Full Code Here

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