testrussiananalyzer.java

一套java版本的搜索引擎源码

package org.apache.lucene.analysis.ru;

/**
 * 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 junit.framework.TestCase;

import java.io.*;

import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Token;

/**
 * Test case for RussianAnalyzer.
 *
 * @author    Boris Okner
 * @version   $Id: TestRussianAnalyzer.java 472959 2006-11-09 16:21:50Z yonik $
 */

public class TestRussianAnalyzer extends TestCase
{
    private InputStreamReader inWords;

    private InputStreamReader sampleUnicode;

    private Reader inWordsKOI8;

    private Reader sampleKOI8;

    private Reader inWords1251;

    private Reader sample1251;

    private File dataDir;

    protected void setUp() throws Exception
    {
      dataDir = new File(System.getProperty("dataDir", "./bin"));
    }

    public void testUnicode() throws IOException
    {
        RussianAnalyzer ra = new RussianAnalyzer(RussianCharsets.UnicodeRussian);
        inWords =
            new InputStreamReader(
                new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/testUnicode.txt")),
                "Unicode");

        sampleUnicode =
            new InputStreamReader(
                new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/resUnicode.htm")),
                "Unicode");

        TokenStream in = ra.tokenStream("all", inWords);

        RussianLetterTokenizer sample =
            new RussianLetterTokenizer(
                sampleUnicode,
                RussianCharsets.UnicodeRussian);

        for (;;)
        {
            Token token = in.next();

            if (token == null)
            {
                break;
            }

            Token sampleToken = sample.next();
            assertEquals(
                "Unicode",
                token.termText(),
                sampleToken == null
                ? null
                : sampleToken.termText());
        }

        inWords.close();
        sampleUnicode.close();
    }

    public void testKOI8() throws IOException
    {
        //System.out.println(new java.util.Date());
        RussianAnalyzer ra = new RussianAnalyzer(RussianCharsets.KOI8);
        // KOI8
        inWordsKOI8 = new InputStreamReader(new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/testKOI8.txt")), "iso-8859-1");

        sampleKOI8 = new InputStreamReader(new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/resKOI8.htm")), "iso-8859-1");

        TokenStream in = ra.tokenStream("all", inWordsKOI8);
        RussianLetterTokenizer sample =
            new RussianLetterTokenizer(
                sampleKOI8,
                RussianCharsets.KOI8);

        for (;;)
        {
            Token token = in.next();

            if (token == null)
            {
                break;
            }

            Token sampleToken = sample.next();
            assertEquals(
                "KOI8",
                token.termText(),
                sampleToken == null
                ? null
                : sampleToken.termText());

        }

        inWordsKOI8.close();
        sampleKOI8.close();
    }

    public void test1251() throws IOException
    {
        // 1251
        inWords1251 = new InputStreamReader(new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/test1251.txt")), "iso-8859-1");

        sample1251 = new InputStreamReader(new FileInputStream(new File(dataDir, "/org/apache/lucene/analysis/ru/res1251.htm")), "iso-8859-1");

        RussianAnalyzer ra = new RussianAnalyzer(RussianCharsets.CP1251);
        TokenStream in = ra.tokenStream("", inWords1251);
        RussianLetterTokenizer sample =
            new RussianLetterTokenizer(
                sample1251,
                RussianCharsets.CP1251);

        for (;;)
        {
            Token token = in.next();

            if (token == null)
            {
                break;
            }

            Token sampleToken = sample.next();
            assertEquals(
                "1251",
                token.termText(),
                sampleToken == null
                ? null
                : sampleToken.termText());

        }

        inWords1251.close();
        sample1251.close();
    }
}