/// <summary>
/// Creates a
/// <see cref="Analyzer.TokenStreamComponents"/>
/// which tokenizes all the text in the provided <see cref="TextReader"/>.
/// </summary>
/// <returns> A
/// <see cref="Analyzer.TokenStreamComponents"/>
/// built from an <see cref="StandardTokenizer"/> filtered with
/// <see cref="StandardFilter"/>, <see cref="SoraniNormalizationFilter"/>,
/// <see cref="LowerCaseFilter"/>, <see cref="StopFilter"/>,
/// <see cref="SetKeywordMarkerFilter"/> if a stem exclusion set is
/// provided and <see cref="SoraniStemFilter"/>. </returns>
protected override TokenStreamComponents CreateComponents(string fieldName, TextReader reader)
{
Tokenizer source = new StandardTokenizer(m_matchVersion, reader);
TokenStream result = new StandardFilter(m_matchVersion, source);
result = new SoraniNormalizationFilter(result);
result = new LowerCaseFilter(m_matchVersion, result);
result = new StopFilter(m_matchVersion, result, m_stopwords);
if (stemExclusionSet.Count > 0)
{
result = new SetKeywordMarkerFilter(result, stemExclusionSet);
}
result = new SoraniStemFilter(result);
return(new TokenStreamComponents(source, result));
}
/// <summary>
/// Creates a
/// <seealso cref="org.apache.lucene.analysis.Analyzer.TokenStreamComponents"/>
/// which tokenizes all the text in the provided <seealso cref="Reader"/>.
/// </summary>
/// <returns> A
/// <seealso cref="org.apache.lucene.analysis.Analyzer.TokenStreamComponents"/>
/// built from an <seealso cref="StandardTokenizer"/> filtered with
/// <seealso cref="StandardFilter"/>, <seealso cref="SoraniNormalizationFilter"/>,
/// <seealso cref="LowerCaseFilter"/>, <seealso cref="StopFilter"/>
/// , <seealso cref="SetKeywordMarkerFilter"/> if a stem exclusion set is
/// provided and <seealso cref="SoraniStemFilter"/>. </returns>
public override TokenStreamComponents CreateComponents(string fieldName, TextReader reader)
{
Tokenizer source = new StandardTokenizer(matchVersion, reader);
TokenStream result = new StandardFilter(matchVersion, source);
result = new SoraniNormalizationFilter(result);
result = new LowerCaseFilter(matchVersion, result);
result = new StopFilter(matchVersion, result, stopwords);
if (stemExclusionSet.Count > 0)
{
result = new SetKeywordMarkerFilter(result, stemExclusionSet);
}
result = new SoraniStemFilter(result);
return new TokenStreamComponents(source, result);
}