| /* |
| * 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. |
| */ |
| package org.apache.lucene.analysis.icu.segmentation; |
| |
| import java.io.IOException; |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.BaseTokenStreamTestCase; |
| import org.apache.lucene.analysis.CharArraySet; |
| import org.apache.lucene.analysis.StopFilter; |
| import org.apache.lucene.analysis.TokenStream; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.cjk.CJKBigramFilter; |
| import org.apache.lucene.analysis.icu.ICUNormalizer2Filter; |
| import org.apache.lucene.util.IOUtils; |
| |
| /** |
| * Tests ICUTokenizer's ability to work with CJKBigramFilter. Most tests adopted from |
| * TestCJKTokenizer |
| */ |
| public class TestWithCJKBigramFilter extends BaseTokenStreamTestCase { |
| |
| Analyzer analyzer, analyzer2; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| /* |
| * ICUTokenizer+CJKBigramFilter |
| */ |
| analyzer = |
| new Analyzer() { |
| @Override |
| protected TokenStreamComponents createComponents(String fieldName) { |
| Tokenizer source = |
| new ICUTokenizer(newAttributeFactory(), new DefaultICUTokenizerConfig(false, true)); |
| TokenStream result = new CJKBigramFilter(source); |
| return new TokenStreamComponents( |
| source, new StopFilter(result, CharArraySet.EMPTY_SET)); |
| } |
| }; |
| /* |
| * ICUTokenizer+ICUNormalizer2Filter+CJKBigramFilter. |
| * |
| * ICUNormalizer2Filter uses nfkc_casefold by default, so this is a language-independent |
| * superset of CJKWidthFilter's foldings. |
| */ |
| analyzer2 = |
| new Analyzer() { |
| @Override |
| protected TokenStreamComponents createComponents(String fieldName) { |
| Tokenizer source = |
| new ICUTokenizer(newAttributeFactory(), new DefaultICUTokenizerConfig(false, true)); |
| // we put this before the CJKBigramFilter, because the normalization might combine |
| // some halfwidth katakana forms, which will affect the bigramming. |
| TokenStream result = new ICUNormalizer2Filter(source); |
| result = new CJKBigramFilter(result); |
| return new TokenStreamComponents( |
| source, new StopFilter(result, CharArraySet.EMPTY_SET)); |
| } |
| }; |
| } |
| |
| @Override |
| public void tearDown() throws Exception { |
| IOUtils.close(analyzer, analyzer2); |
| super.tearDown(); |
| } |
| |
| public void testJa1() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一二三四五六七八九十", |
| new String[] {"一二", "二三", "三四", "四五", "五六", "六七", "七八", "八九", "九十"}, |
| new int[] {0, 1, 2, 3, 4, 5, 6, 7, 8}, |
| new int[] {2, 3, 4, 5, 6, 7, 8, 9, 10}, |
| new String[] { |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1, 1}); |
| } |
| |
| public void testJa2() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一 二三四 五六七八九 十", |
| new String[] {"一", "二三", "三四", "五六", "六七", "七八", "八九", "十"}, |
| new int[] {0, 2, 3, 6, 7, 8, 9, 12}, |
| new int[] {1, 4, 5, 8, 9, 10, 11, 13}, |
| new String[] { |
| "<SINGLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<SINGLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1}); |
| } |
| |
| public void testC() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "abc defgh ijklmn opqrstu vwxy z", |
| new String[] {"abc", "defgh", "ijklmn", "opqrstu", "vwxy", "z"}, |
| new int[] {0, 4, 10, 17, 25, 30}, |
| new int[] {3, 9, 16, 24, 29, 31}, |
| new String[] { |
| "<ALPHANUM>", "<ALPHANUM>", "<ALPHANUM>", "<ALPHANUM>", "<ALPHANUM>", "<ALPHANUM>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1}); |
| } |
| |
| /** LUCENE-2207: wrong offset calculated by end() */ |
| public void testFinalOffset() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "あい", |
| new String[] {"あい"}, |
| new int[] {0}, |
| new int[] {2}, |
| new String[] {"<DOUBLE>"}, |
| new int[] {1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "あい ", |
| new String[] {"あい"}, |
| new int[] {0}, |
| new int[] {2}, |
| new String[] {"<DOUBLE>"}, |
| new int[] {1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "test", |
| new String[] {"test"}, |
| new int[] {0}, |
| new int[] {4}, |
| new String[] {"<ALPHANUM>"}, |
| new int[] {1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "test ", |
| new String[] {"test"}, |
| new int[] {0}, |
| new int[] {4}, |
| new String[] {"<ALPHANUM>"}, |
| new int[] {1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "あいtest", |
| new String[] {"あい", "test"}, |
| new int[] {0, 2}, |
| new int[] {2, 6}, |
| new String[] {"<DOUBLE>", "<ALPHANUM>"}, |
| new int[] {1, 1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "testあい ", |
| new String[] {"test", "あい"}, |
| new int[] {0, 4}, |
| new int[] {4, 6}, |
| new String[] {"<ALPHANUM>", "<DOUBLE>"}, |
| new int[] {1, 1}); |
| } |
| |
| public void testMix() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "あいうえおabcかきくけこ", |
| new String[] {"あい", "いう", "うえ", "えお", "abc", "かき", "きく", "くけ", "けこ"}, |
| new int[] {0, 1, 2, 3, 5, 8, 9, 10, 11}, |
| new int[] {2, 3, 4, 5, 8, 10, 11, 12, 13}, |
| new String[] { |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<ALPHANUM>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1, 1}); |
| } |
| |
| public void testMix2() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "あいうえおabんcかきくけ こ", |
| new String[] {"あい", "いう", "うえ", "えお", "ab", "ん", "c", "かき", "きく", "くけ", "こ"}, |
| new int[] {0, 1, 2, 3, 5, 7, 8, 9, 10, 11, 14}, |
| new int[] {2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15}, |
| new String[] { |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<ALPHANUM>", |
| "<SINGLE>", |
| "<ALPHANUM>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<SINGLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}); |
| } |
| |
| /** Non-english text (outside of CJK) is treated normally, according to unicode rules */ |
| public void testNonIdeographic() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一 روبرت موير", |
| new String[] {"一", "روبرت", "موير"}, |
| new int[] {0, 2, 8}, |
| new int[] {1, 7, 12}, |
| new String[] {"<SINGLE>", "<ALPHANUM>", "<ALPHANUM>"}, |
| new int[] {1, 1, 1}); |
| } |
| |
| /** Same as the above, except with a nonspacing mark to show correctness. */ |
| public void testNonIdeographicNonLetter() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一 رُوبرت موير", |
| new String[] {"一", "رُوبرت", "موير"}, |
| new int[] {0, 2, 9}, |
| new int[] {1, 8, 13}, |
| new String[] {"<SINGLE>", "<ALPHANUM>", "<ALPHANUM>"}, |
| new int[] {1, 1, 1}); |
| } |
| |
| public void testSurrogates() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "𩬅艱鍟䇹愯瀛", |
| new String[] {"𩬅艱", "艱鍟", "鍟䇹", "䇹愯", "愯瀛"}, |
| new int[] {0, 2, 3, 4, 5}, |
| new int[] {3, 4, 5, 6, 7}, |
| new String[] {"<DOUBLE>", "<DOUBLE>", "<DOUBLE>", "<DOUBLE>", "<DOUBLE>"}, |
| new int[] {1, 1, 1, 1, 1}); |
| } |
| |
| public void testReusableTokenStream() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "あいうえおabcかきくけこ", |
| new String[] {"あい", "いう", "うえ", "えお", "abc", "かき", "きく", "くけ", "けこ"}, |
| new int[] {0, 1, 2, 3, 5, 8, 9, 10, 11}, |
| new int[] {2, 3, 4, 5, 8, 10, 11, 12, 13}, |
| new String[] { |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<ALPHANUM>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1, 1}); |
| |
| assertAnalyzesTo( |
| analyzer, |
| "あいうえおabんcかきくけ こ", |
| new String[] {"あい", "いう", "うえ", "えお", "ab", "ん", "c", "かき", "きく", "くけ", "こ"}, |
| new int[] {0, 1, 2, 3, 5, 7, 8, 9, 10, 11, 14}, |
| new int[] {2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15}, |
| new String[] { |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<ALPHANUM>", |
| "<SINGLE>", |
| "<ALPHANUM>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<DOUBLE>", |
| "<SINGLE>" |
| }, |
| new int[] {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}); |
| } |
| |
| public void testSingleChar() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一", |
| new String[] {"一"}, |
| new int[] {0}, |
| new int[] {1}, |
| new String[] {"<SINGLE>"}, |
| new int[] {1}); |
| } |
| |
| public void testTokenStream() throws IOException { |
| assertAnalyzesTo( |
| analyzer, |
| "一丁丂", |
| new String[] {"一丁", "丁丂"}, |
| new int[] {0, 1}, |
| new int[] {2, 3}, |
| new String[] {"<DOUBLE>", "<DOUBLE>"}, |
| new int[] {1, 1}); |
| } |
| } |
