| /* |
| * 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.bg; |
| |
| |
| import java.io.IOException; |
| import java.io.StringReader; |
| |
| import org.apache.lucene.analysis.Analyzer; |
| import org.apache.lucene.analysis.BaseTokenStreamTestCase; |
| import org.apache.lucene.analysis.CharArraySet; |
| import org.apache.lucene.analysis.MockTokenizer; |
| import org.apache.lucene.analysis.Tokenizer; |
| import org.apache.lucene.analysis.core.KeywordTokenizer; |
| import org.apache.lucene.analysis.miscellaneous.SetKeywordMarkerFilter; |
| |
| /** |
| * Test the Bulgarian Stemmer |
| */ |
| public class TestBulgarianStemmer extends BaseTokenStreamTestCase { |
| /** |
| * Test showing how masculine noun forms conflate. An example noun for each |
| * common (and some rare) plural pattern is listed. |
| */ |
| public void testMasculineNouns() throws IOException { |
| BulgarianAnalyzer a = new BulgarianAnalyzer(); |
| |
| // -и pattern |
| assertAnalyzesTo(a, "град", new String[] {"град"}); |
| assertAnalyzesTo(a, "града", new String[] {"град"}); |
| assertAnalyzesTo(a, "градът", new String[] {"град"}); |
| assertAnalyzesTo(a, "градове", new String[] {"град"}); |
| assertAnalyzesTo(a, "градовете", new String[] {"град"}); |
| |
| // -ове pattern |
| assertAnalyzesTo(a, "народ", new String[] {"народ"}); |
| assertAnalyzesTo(a, "народа", new String[] {"народ"}); |
| assertAnalyzesTo(a, "народът", new String[] {"народ"}); |
| assertAnalyzesTo(a, "народи", new String[] {"народ"}); |
| assertAnalyzesTo(a, "народите", new String[] {"народ"}); |
| assertAnalyzesTo(a, "народе", new String[] {"народ"}); |
| |
| // -ища pattern |
| assertAnalyzesTo(a, "път", new String[] {"път"}); |
| assertAnalyzesTo(a, "пътя", new String[] {"път"}); |
| assertAnalyzesTo(a, "пътят", new String[] {"път"}); |
| assertAnalyzesTo(a, "пътища", new String[] {"път"}); |
| assertAnalyzesTo(a, "пътищата", new String[] {"път"}); |
| |
| // -чета pattern |
| assertAnalyzesTo(a, "градец", new String[] {"градец"}); |
| assertAnalyzesTo(a, "градеца", new String[] {"градец"}); |
| assertAnalyzesTo(a, "градецът", new String[] {"градец"}); |
| /* note the below forms conflate with each other, but not the rest */ |
| assertAnalyzesTo(a, "градовце", new String[] {"градовц"}); |
| assertAnalyzesTo(a, "градовцете", new String[] {"градовц"}); |
| |
| // -овци pattern |
| assertAnalyzesTo(a, "дядо", new String[] {"дяд"}); |
| assertAnalyzesTo(a, "дядото", new String[] {"дяд"}); |
| assertAnalyzesTo(a, "дядовци", new String[] {"дяд"}); |
| assertAnalyzesTo(a, "дядовците", new String[] {"дяд"}); |
| |
| // -е pattern |
| assertAnalyzesTo(a, "мъж", new String[] {"мъж"}); |
| assertAnalyzesTo(a, "мъжа", new String[] {"мъж"}); |
| assertAnalyzesTo(a, "мъже", new String[] {"мъж"}); |
| assertAnalyzesTo(a, "мъжете", new String[] {"мъж"}); |
| assertAnalyzesTo(a, "мъжо", new String[] {"мъж"}); |
| /* word is too short, will not remove -ът */ |
| assertAnalyzesTo(a, "мъжът", new String[] {"мъжът"}); |
| |
| // -а pattern |
| assertAnalyzesTo(a, "крак", new String[] {"крак"}); |
| assertAnalyzesTo(a, "крака", new String[] {"крак"}); |
| assertAnalyzesTo(a, "кракът", new String[] {"крак"}); |
| assertAnalyzesTo(a, "краката", new String[] {"крак"}); |
| |
| // брат |
| assertAnalyzesTo(a, "брат", new String[] {"брат"}); |
| assertAnalyzesTo(a, "брата", new String[] {"брат"}); |
| assertAnalyzesTo(a, "братът", new String[] {"брат"}); |
| assertAnalyzesTo(a, "братя", new String[] {"брат"}); |
| assertAnalyzesTo(a, "братята", new String[] {"брат"}); |
| assertAnalyzesTo(a, "брате", new String[] {"брат"}); |
| |
| a.close(); |
| } |
| |
| /** |
| * Test showing how feminine noun forms conflate |
| */ |
| public void testFeminineNouns() throws IOException { |
| BulgarianAnalyzer a = new BulgarianAnalyzer(); |
| |
| assertAnalyzesTo(a, "вест", new String[] {"вест"}); |
| assertAnalyzesTo(a, "вестта", new String[] {"вест"}); |
| assertAnalyzesTo(a, "вести", new String[] {"вест"}); |
| assertAnalyzesTo(a, "вестите", new String[] {"вест"}); |
| |
| a.close(); |
| } |
| |
| /** |
| * Test showing how neuter noun forms conflate an example noun for each common |
| * plural pattern is listed |
| */ |
| public void testNeuterNouns() throws IOException { |
| BulgarianAnalyzer a = new BulgarianAnalyzer(); |
| |
| // -а pattern |
| assertAnalyzesTo(a, "дърво", new String[] {"дърв"}); |
| assertAnalyzesTo(a, "дървото", new String[] {"дърв"}); |
| assertAnalyzesTo(a, "дърва", new String[] {"дърв"}); |
| assertAnalyzesTo(a, "дървета", new String[] {"дърв"}); |
| assertAnalyzesTo(a, "дървата", new String[] {"дърв"}); |
| assertAnalyzesTo(a, "дърветата", new String[] {"дърв"}); |
| |
| // -та pattern |
| assertAnalyzesTo(a, "море", new String[] {"мор"}); |
| assertAnalyzesTo(a, "морето", new String[] {"мор"}); |
| assertAnalyzesTo(a, "морета", new String[] {"мор"}); |
| assertAnalyzesTo(a, "моретата", new String[] {"мор"}); |
| |
| // -я pattern |
| assertAnalyzesTo(a, "изключение", new String[] {"изключени"}); |
| assertAnalyzesTo(a, "изключението", new String[] {"изключени"}); |
| assertAnalyzesTo(a, "изключенията", new String[] {"изключени"}); |
| /* note the below form in this example does not conflate with the rest */ |
| assertAnalyzesTo(a, "изключения", new String[] {"изключн"}); |
| |
| a.close(); |
| } |
| |
| /** |
| * Test showing how adjectival forms conflate |
| */ |
| public void testAdjectives() throws IOException { |
| BulgarianAnalyzer a = new BulgarianAnalyzer(); |
| assertAnalyzesTo(a, "красив", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красивия", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красивият", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красива", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красивата", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красиво", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красивото", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красиви", new String[] {"красив"}); |
| assertAnalyzesTo(a, "красивите", new String[] {"красив"}); |
| a.close(); |
| } |
| |
| /** |
| * Test some exceptional rules, implemented as rewrites. |
| */ |
| public void testExceptions() throws IOException { |
| BulgarianAnalyzer a = new BulgarianAnalyzer(); |
| |
| // ци -> к |
| assertAnalyzesTo(a, "собственик", new String[] {"собственик"}); |
| assertAnalyzesTo(a, "собственика", new String[] {"собственик"}); |
| assertAnalyzesTo(a, "собственикът", new String[] {"собственик"}); |
| assertAnalyzesTo(a, "собственици", new String[] {"собственик"}); |
| assertAnalyzesTo(a, "собствениците", new String[] {"собственик"}); |
| |
| // зи -> г |
| assertAnalyzesTo(a, "подлог", new String[] {"подлог"}); |
| assertAnalyzesTo(a, "подлога", new String[] {"подлог"}); |
| assertAnalyzesTo(a, "подлогът", new String[] {"подлог"}); |
| assertAnalyzesTo(a, "подлози", new String[] {"подлог"}); |
| assertAnalyzesTo(a, "подлозите", new String[] {"подлог"}); |
| |
| // си -> х |
| assertAnalyzesTo(a, "кожух", new String[] {"кожух"}); |
| assertAnalyzesTo(a, "кожуха", new String[] {"кожух"}); |
| assertAnalyzesTo(a, "кожухът", new String[] {"кожух"}); |
| assertAnalyzesTo(a, "кожуси", new String[] {"кожух"}); |
| assertAnalyzesTo(a, "кожусите", new String[] {"кожух"}); |
| |
| // ъ deletion |
| assertAnalyzesTo(a, "център", new String[] {"центр"}); |
| assertAnalyzesTo(a, "центъра", new String[] {"центр"}); |
| assertAnalyzesTo(a, "центърът", new String[] {"центр"}); |
| assertAnalyzesTo(a, "центрове", new String[] {"центр"}); |
| assertAnalyzesTo(a, "центровете", new String[] {"центр"}); |
| |
| // е*и -> я* |
| assertAnalyzesTo(a, "промяна", new String[] {"промян"}); |
| assertAnalyzesTo(a, "промяната", new String[] {"промян"}); |
| assertAnalyzesTo(a, "промени", new String[] {"промян"}); |
| assertAnalyzesTo(a, "промените", new String[] {"промян"}); |
| |
| // ен -> н |
| assertAnalyzesTo(a, "песен", new String[] {"песн"}); |
| assertAnalyzesTo(a, "песента", new String[] {"песн"}); |
| assertAnalyzesTo(a, "песни", new String[] {"песн"}); |
| assertAnalyzesTo(a, "песните", new String[] {"песн"}); |
| |
| // -еве -> й |
| // note: this is the only word i think this rule works for. |
| // most -еве pluralized nouns are monosyllabic, |
| // and the stemmer requires length > 6... |
| assertAnalyzesTo(a, "строй", new String[] {"строй"}); |
| assertAnalyzesTo(a, "строеве", new String[] {"строй"}); |
| assertAnalyzesTo(a, "строевете", new String[] {"строй"}); |
| /* note the below forms conflate with each other, but not the rest */ |
| assertAnalyzesTo(a, "строя", new String[] {"стр"}); |
| assertAnalyzesTo(a, "строят", new String[] {"стр"}); |
| |
| a.close(); |
| } |
| |
| public void testWithKeywordAttribute() throws IOException { |
| CharArraySet set = new CharArraySet(1, true); |
| set.add("строеве"); |
| MockTokenizer tokenStream = new MockTokenizer(MockTokenizer.WHITESPACE, false); |
| tokenStream.setReader(new StringReader("строевете строеве")); |
| |
| BulgarianStemFilter filter = new BulgarianStemFilter( |
| new SetKeywordMarkerFilter(tokenStream, set)); |
| assertTokenStreamContents(filter, new String[] { "строй", "строеве" }); |
| } |
| |
| public void testEmptyTerm() throws IOException { |
| Analyzer a = new Analyzer() { |
| @Override |
| protected TokenStreamComponents createComponents(String fieldName) { |
| Tokenizer tokenizer = new KeywordTokenizer(); |
| return new TokenStreamComponents(tokenizer, new BulgarianStemFilter(tokenizer)); |
| } |
| }; |
| checkOneTerm(a, "", ""); |
| a.close(); |
| } |
| } |