stopanalyzer2.java

LuceneInAction配套源码,LuceneInAction是对lucene api的详细讲解及具体应用.此源码即应用例子

package lia.analysis.stopanalyzer;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.LetterTokenizer;
import org.apache.lucene.analysis.LowerCaseFilter;
import org.apache.lucene.analysis.StopAnalyzer;
import org.apache.lucene.analysis.StopFilter;
import org.apache.lucene.analysis.TokenStream;

import java.io.Reader;
import java.util.Set;

public class StopAnalyzer2 extends Analyzer {
  private Set stopWords;

  public StopAnalyzer2() {
    stopWords = StopFilter.makeStopSet(StopAnalyzer.ENGLISH_STOP_WORDS);
  }

  public StopAnalyzer2(String[] stopWords) {
    this.stopWords = StopFilter.makeStopSet(stopWords);
  }

  public TokenStream tokenStream(String fieldName, Reader reader) {
    return new StopFilter(new LowerCaseFilter(new LetterTokenizer(reader)),
        stopWords);
  }
}