chineseanalyzer.java

一套java版本的搜索引擎源码

package org.apache.lucene.analysis.cn;

/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.Reader;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;

/**
 * Title: ChineseAnalyzer
 * Description:
 *   Subclass of org.apache.lucene.analysis.Analyzer
 *   build from a ChineseTokenizer, filtered with ChineseFilter.
 * Copyright:   Copyright (c) 2001
 * Company:
 * @author Yiyi Sun
 * @version 1.0
 *
 */

public class ChineseAnalyzer extends Analyzer {

    public ChineseAnalyzer() {
    }

    /**
    * Creates a TokenStream which tokenizes all the text in the provided Reader.
    *
    * @return  A TokenStream build from a ChineseTokenizer filtered with ChineseFilter.
    */
    public final TokenStream tokenStream(String fieldName, Reader reader) {
        TokenStream result = new ChineseTokenizer(reader);
        result = new ChineseFilter(result);
        return result;
    }
}