package net.paoding.analysis.analyzer;
import java.io.Reader;
import java.util.Map;
import net.paoding.analysis.analyzer.TokenCollector;
import net.paoding.analysis.analyzer.impl.MaxWordLengthTokenCollector;
import net.paoding.analysis.analyzer.impl.MostWordsTokenCollector;
import net.paoding.analysis.knife.PaodingMaker;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.solr.analysis.BaseTokenizerFactory;
/**
* 中文切词 对庖丁切词的封装
*/
public class ChineseTokenizerFactory extends BaseTokenizerFactory {
/**
* 最多切分 默认模式
*/
public static final String MOST_WORDS_MODE = "most-words";
/**
* 按最大切分
*/
public static final String MAX_WORD_LENGTH_MODE = "max-word-length";
private String mode = null;
public void setMode(String mode) {
if (mode == null || MOST_WORDS_MODE.equalsIgnoreCase(mode)
|| "default".equalsIgnoreCase(mode)) {
this.mode = MOST_WORDS_MODE;
} else if (MAX_WORD_LENGTH_MODE.equalsIgnoreCase(mode)) {
this.mode = MAX_WORD_LENGTH_MODE;
} else {
throw new IllegalArgumentException("不合法的分析器Mode参数设置:" + mode);
}
}
@Override
public void init(Map<String, String> args) {
super.init(args);
setMode((String) args.get("mode"));
}
private TokenCollector createTokenCollector() {
if (MOST_WORDS_MODE.equals(mode))
return new MostWordsTokenCollector();
if (MAX_WORD_LENGTH_MODE.equals(mode))
return new MaxWordLengthTokenCollector();
throw new Error("never happened");
}
@Override
public Tokenizer create(Reader input) {
return new SolrPaodingTokenizer(input, PaodingMaker.make(),
createTokenCollector());
}
}