mirror of https://github.com/apache/lucene.git
Add new token filters for Japanese sutegana (捨て仮名) (#12915)
### Description Sutegana (捨て仮名) is small letter of hiragana and katakana in Japanese. In the old Japanese text, sutegana (捨て仮名) is not used unlikely to modern one. For example: - "ストップウォッチ" is written as "ストツプウオツチ" - "ちょっとまって" is written as "ちよつとまつて" So it's meaningful to normalize sutegana to normal (uppercase) characters if we search against the corpus which includes old Japanese text such as patents, legal documents, contract policies, etc. This pull request introduces 2 token filters: - JapaneseHiraganaUppercaseFilter for hiragana - JapaneseKatakanaUppercaseFilter for katakana so that user can use either one separately. Each. filter make all the sutegana (small characters) into normal kana (uppercase character) to normalize the token. ### Why it is needed This transformation must be done as token filter. There have already been [MappingCharFilter](https://lucene.apache.org/core/8_0_0/analyzers-common/org/apache/lucene/analysis/charfilter/MappingCharFilter.html), but if we apply this character filter to normalize sutegana, it will impact to tokenization and it is not expected.
This commit is contained in:
Dai Sugimori
GitHub
parent
5b48474286
commit
d393b9d039
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@ -194,6 +194,9 @@ New Features
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* GITHUB#13125: Recursive graph bisection is now supported on indexes that have blocks, as long as
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they configure a parent field via `IndexWriterConfig#setParentField`. (Adrien Grand)
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* GITHUB#12915: Add new token filters for Japanese sutegana (捨て仮名). This introduces JapaneseHiraganaUppercaseFilter
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and JapaneseKatakanaUppercaseFilter. (Dai Sugimori)
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Improvements
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---------------------
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@ -258,7 +261,6 @@ API Changes
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New Features
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---------------------
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* GITHUB#12679: Add support for similarity-based vector searches using [Byte|Float]VectorSimilarityQuery. Uses a new
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VectorSimilarityCollector to find all vectors scoring above a `resultSimilarity` while traversing the HNSW graph till
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better-scoring nodes are available, or the best candidate is below a score of `traversalSimilarity` in the lowest
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@ -40,5 +40,7 @@ module org.apache.lucene.analysis.kuromoji {
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org.apache.lucene.analysis.ja.JapaneseKatakanaStemFilterFactory,
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org.apache.lucene.analysis.ja.JapaneseNumberFilterFactory,
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org.apache.lucene.analysis.ja.JapanesePartOfSpeechStopFilterFactory,
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org.apache.lucene.analysis.ja.JapaneseReadingFormFilterFactory;
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org.apache.lucene.analysis.ja.JapaneseReadingFormFilterFactory,
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org.apache.lucene.analysis.ja.JapaneseHiraganaUppercaseFilterFactory,
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org.apache.lucene.analysis.ja.JapaneseKatakanaUppercaseFilterFactory;
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}
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@ -0,0 +1,75 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.lucene.analysis.ja;
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import java.io.IOException;
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import java.util.Map;
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import org.apache.lucene.analysis.TokenFilter;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
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/**
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* A {@link TokenFilter} that normalizes small letters (捨て仮名) in hiragana into normal letters. For
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* instance, "ちょっとまって" will be translated to "ちよつとまつて".
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*
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* <p>This filter is useful if you want to search against old style Japanese text such as patents,
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* legal, contract policies, etc.
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*/
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public final class JapaneseHiraganaUppercaseFilter extends TokenFilter {
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private static final Map<Character, Character> LETTER_MAPPINGS;
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static {
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// supported characters are:
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// ぁ ぃ ぅ ぇ ぉ っ ゃ ゅ ょ ゎ ゕ ゖ
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LETTER_MAPPINGS =
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Map.ofEntries(
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Map.entry('ぁ', 'あ'),
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Map.entry('ぃ', 'い'),
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Map.entry('ぅ', 'う'),
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Map.entry('ぇ', 'え'),
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Map.entry('ぉ', 'お'),
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Map.entry('っ', 'つ'),
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Map.entry('ゃ', 'や'),
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Map.entry('ゅ', 'ゆ'),
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Map.entry('ょ', 'よ'),
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Map.entry('ゎ', 'わ'),
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Map.entry('ゕ', 'か'),
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Map.entry('ゖ', 'け'));
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}
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private final CharTermAttribute termAttr = addAttribute(CharTermAttribute.class);
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public JapaneseHiraganaUppercaseFilter(TokenStream input) {
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super(input);
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}
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@Override
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public boolean incrementToken() throws IOException {
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if (input.incrementToken()) {
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char[] termBuffer = termAttr.buffer();
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for (int i = 0; i < termBuffer.length; i++) {
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Character c = LETTER_MAPPINGS.get(termBuffer[i]);
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if (c != null) {
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termBuffer[i] = c;
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}
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}
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return true;
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} else {
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return false;
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}
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}
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}
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@ -0,0 +1,49 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.lucene.analysis.ja;
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import java.util.Map;
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import org.apache.lucene.analysis.TokenFilterFactory;
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import org.apache.lucene.analysis.TokenStream;
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/**
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* Factory for {@link JapaneseHiraganaUppercaseFilter}.
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*
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* @lucene.spi {@value #NAME}
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*/
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public class JapaneseHiraganaUppercaseFilterFactory extends TokenFilterFactory {
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/** SPI name */
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public static final String NAME = "japaneseHiraganaUppercase";
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public JapaneseHiraganaUppercaseFilterFactory(Map<String, String> args) {
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super(args);
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if (!args.isEmpty()) {
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throw new IllegalArgumentException("Unknown parameters: " + args);
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}
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}
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/** Default ctor for compatibility with SPI */
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public JapaneseHiraganaUppercaseFilterFactory() {
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throw defaultCtorException();
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}
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@Override
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public TokenStream create(TokenStream input) {
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return new JapaneseHiraganaUppercaseFilter(input);
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}
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}
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@ -0,0 +1,96 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.lucene.analysis.ja;
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import java.io.IOException;
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import java.util.Map;
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import org.apache.lucene.analysis.TokenFilter;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
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/**
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* A {@link TokenFilter} that normalizes small letters (捨て仮名) in katakana into normal letters. For
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* instance, "ストップウォッチ" will be translated to "ストツプウオツチ".
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*
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* <p>This filter is useful if you want to search against old style Japanese text such as patents,
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* legal, contract policies, etc.
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*/
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public final class JapaneseKatakanaUppercaseFilter extends TokenFilter {
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private static final Map<Character, Character> LETTER_MAPPINGS;
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static {
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// supported characters are:
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// ァ ィ ゥ ェ ォ ヵ ㇰ ヶ ㇱ ㇲ ッ ㇳ ㇴ ㇵ ㇶ ㇷ ㇷ゚ ㇸ ㇹ ㇺ ャ ュ ョ ㇻ ㇼ ㇽ ㇾ ㇿ ヮ
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LETTER_MAPPINGS =
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Map.ofEntries(
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Map.entry('ァ', 'ア'),
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Map.entry('ィ', 'イ'),
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Map.entry('ゥ', 'ウ'),
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Map.entry('ェ', 'エ'),
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Map.entry('ォ', 'オ'),
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Map.entry('ヵ', 'カ'),
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Map.entry('ㇰ', 'ク'),
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Map.entry('ヶ', 'ケ'),
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Map.entry('ㇱ', 'シ'),
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Map.entry('ㇲ', 'ス'),
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Map.entry('ッ', 'ツ'),
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Map.entry('ㇳ', 'ト'),
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Map.entry('ㇴ', 'ヌ'),
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Map.entry('ㇵ', 'ハ'),
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Map.entry('ㇶ', 'ヒ'),
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Map.entry('ㇷ', 'フ'),
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Map.entry('ㇸ', 'ヘ'),
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Map.entry('ㇹ', 'ホ'),
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Map.entry('ㇺ', 'ム'),
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Map.entry('ャ', 'ヤ'),
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Map.entry('ュ', 'ユ'),
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Map.entry('ョ', 'ヨ'),
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Map.entry('ㇻ', 'ラ'),
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Map.entry('ㇼ', 'リ'),
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Map.entry('ㇽ', 'ル'),
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Map.entry('ㇾ', 'レ'),
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Map.entry('ㇿ', 'ロ'),
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Map.entry('ヮ', 'ワ'));
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}
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private final CharTermAttribute termAttr = addAttribute(CharTermAttribute.class);
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public JapaneseKatakanaUppercaseFilter(TokenStream input) {
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super(input);
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}
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@Override
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public boolean incrementToken() throws IOException {
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if (input.incrementToken()) {
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String term = termAttr.toString();
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if (term.contains("ㇷ゚")) {
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term = term.replace("ㇷ゚", "プ");
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termAttr.setEmpty().append(term);
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}
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char[] termBuffer = termAttr.buffer();
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for (int i = 0; i < termBuffer.length; i++) {
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Character c = LETTER_MAPPINGS.get(termBuffer[i]);
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if (c != null) {
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termBuffer[i] = c;
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}
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}
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return true;
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} else {
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return false;
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}
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}
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}
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@ -0,0 +1,49 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
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* contributor license agreements. See the NOTICE file distributed with
|
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* this work for additional information regarding copyright ownership.
|
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
|
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.lucene.analysis.ja;
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import java.util.Map;
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import org.apache.lucene.analysis.TokenFilterFactory;
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import org.apache.lucene.analysis.TokenStream;
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/**
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* Factory for {@link JapaneseKatakanaUppercaseFilter}.
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*
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* @lucene.spi {@value #NAME}
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*/
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public class JapaneseKatakanaUppercaseFilterFactory extends TokenFilterFactory {
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/** SPI name */
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public static final String NAME = "japaneseKatakanaUppercase";
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public JapaneseKatakanaUppercaseFilterFactory(Map<String, String> args) {
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super(args);
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if (!args.isEmpty()) {
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throw new IllegalArgumentException("Unknown parameters: " + args);
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}
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}
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/** Default ctor for compatibility with SPI */
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public JapaneseKatakanaUppercaseFilterFactory() {
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throw defaultCtorException();
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}
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@Override
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public TokenStream create(TokenStream input) {
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return new JapaneseKatakanaUppercaseFilter(input);
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}
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}
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@ -19,3 +19,5 @@ org.apache.lucene.analysis.ja.JapaneseKatakanaStemFilterFactory
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org.apache.lucene.analysis.ja.JapaneseNumberFilterFactory
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org.apache.lucene.analysis.ja.JapanesePartOfSpeechStopFilterFactory
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org.apache.lucene.analysis.ja.JapaneseReadingFormFilterFactory
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org.apache.lucene.analysis.ja.JapaneseHiraganaUppercaseFilterFactory
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org.apache.lucene.analysis.ja.JapaneseKatakanaUppercaseFilterFactory
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@ -0,0 +1,85 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
|
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* 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
|
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* (the "License"); you may not use this file except in compliance with
|
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* the License. You may obtain a copy of the License at
|
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
|
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* distributed under the License is distributed on an "AS IS" BASIS,
|
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
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* See the License for the specific language governing permissions and
|
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* limitations under the License.
|
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*/
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package org.apache.lucene.analysis.ja;
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import java.io.IOException;
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import org.apache.lucene.analysis.Analyzer;
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import org.apache.lucene.analysis.Tokenizer;
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import org.apache.lucene.tests.analysis.BaseTokenStreamTestCase;
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import org.apache.lucene.tests.analysis.MockTokenizer;
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/** Tests for {@link JapaneseHiraganaUppercaseFilter} */
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public class TestJapaneseHiraganaUppercaseFilter extends BaseTokenStreamTestCase {
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private Analyzer keywordAnalyzer, japaneseAnalyzer;
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@Override
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public void setUp() throws Exception {
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super.setUp();
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keywordAnalyzer =
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new Analyzer() {
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@Override
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protected TokenStreamComponents createComponents(String fieldName) {
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Tokenizer tokenizer = new MockTokenizer(MockTokenizer.WHITESPACE, false);
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return new TokenStreamComponents(
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tokenizer, new JapaneseHiraganaUppercaseFilter(tokenizer));
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}
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};
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japaneseAnalyzer =
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new Analyzer() {
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@Override
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protected TokenStreamComponents createComponents(String fieldName) {
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Tokenizer tokenizer =
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new JapaneseTokenizer(
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newAttributeFactory(), null, false, JapaneseTokenizer.Mode.SEARCH);
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return new TokenStreamComponents(
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tokenizer, new JapaneseHiraganaUppercaseFilter(tokenizer));
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}
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};
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}
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@Override
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public void tearDown() throws Exception {
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keywordAnalyzer.close();
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japaneseAnalyzer.close();
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super.tearDown();
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}
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public void testKanaUppercase() throws IOException {
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assertAnalyzesTo(keywordAnalyzer, "ぁぃぅぇぉっゃゅょゎゕゖ", new String[] {"あいうえおつやゆよわかけ"});
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assertAnalyzesTo(keywordAnalyzer, "ちょっとまって", new String[] {"ちよつとまつて"});
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}
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public void testKanaUppercaseWithSurrogatePair() throws IOException {
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// 𠀋 : \uD840\uDC0B
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assertAnalyzesTo(
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keywordAnalyzer,
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"\uD840\uDC0Bちょっとまって ちょっと\uD840\uDC0Bまって ちょっとまって\uD840\uDC0B",
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new String[] {"\uD840\uDC0Bちよつとまつて", "ちよつと\uD840\uDC0Bまつて", "ちよつとまつて\uD840\uDC0B"});
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}
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public void testKanaUppercaseWithJapaneseTokenizer() throws IOException {
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assertAnalyzesTo(japaneseAnalyzer, "ちょっとまって", new String[] {"ちよつと", "まつ", "て"});
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}
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public void testRandomData() throws IOException {
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checkRandomData(random(), keywordAnalyzer, 200 * RANDOM_MULTIPLIER);
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}
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public void testEmptyTerm() throws IOException {
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assertAnalyzesTo(keywordAnalyzer, "", new String[] {});
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}
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}
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@ -0,0 +1,61 @@
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/*
|
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* 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.
|
||||
*/
|
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package org.apache.lucene.analysis.ja;
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import java.io.IOException;
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import java.io.StringReader;
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import java.util.HashMap;
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import java.util.Map;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.analysis.Tokenizer;
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import org.apache.lucene.tests.analysis.BaseTokenStreamTestCase;
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import org.apache.lucene.tests.util.StringMockResourceLoader;
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|
||||
/** Tests for {@link JapaneseHiraganaUppercaseFilterFactory} */
|
||||
public class TestJapaneseHiraganaUppercaseFilterFactory extends BaseTokenStreamTestCase {
|
||||
public void testBasics() throws IOException {
|
||||
|
||||
Map<String, String> args = new HashMap<>();
|
||||
args.put("discardPunctuation", "false");
|
||||
|
||||
JapaneseTokenizerFactory tokenizerFactory = new JapaneseTokenizerFactory(args);
|
||||
|
||||
tokenizerFactory.inform(new StringMockResourceLoader(""));
|
||||
TokenStream tokenStream = tokenizerFactory.create(newAttributeFactory());
|
||||
((Tokenizer) tokenStream).setReader(new StringReader("ちょっとまって"));
|
||||
|
||||
JapaneseHiraganaUppercaseFilterFactory factory =
|
||||
new JapaneseHiraganaUppercaseFilterFactory(new HashMap<>());
|
||||
tokenStream = factory.create(tokenStream);
|
||||
assertTokenStreamContents(tokenStream, new String[] {"ちよつと", "まつ", "て"});
|
||||
}
|
||||
|
||||
/** Test that bogus arguments result in exception */
|
||||
public void testBogusArguments() throws Exception {
|
||||
IllegalArgumentException expected =
|
||||
expectThrows(
|
||||
IllegalArgumentException.class,
|
||||
() ->
|
||||
new JapaneseHiraganaUppercaseFilterFactory(
|
||||
new HashMap<>() {
|
||||
{
|
||||
put("bogusArg", "bogusValue");
|
||||
}
|
||||
}));
|
||||
assertTrue(expected.getMessage().contains("Unknown parameters"));
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,95 @@
|
|||
/*
|
||||
* 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.ja;
|
||||
|
||||
import java.io.IOException;
|
||||
import org.apache.lucene.analysis.Analyzer;
|
||||
import org.apache.lucene.analysis.Tokenizer;
|
||||
import org.apache.lucene.tests.analysis.BaseTokenStreamTestCase;
|
||||
import org.apache.lucene.tests.analysis.MockTokenizer;
|
||||
|
||||
/** Tests for {@link JapaneseKatakanaUppercaseFilter} */
|
||||
public class TestJapaneseKatakanaUppercaseFilter extends BaseTokenStreamTestCase {
|
||||
private Analyzer keywordAnalyzer, japaneseAnalyzer;
|
||||
|
||||
@Override
|
||||
public void setUp() throws Exception {
|
||||
super.setUp();
|
||||
keywordAnalyzer =
|
||||
new Analyzer() {
|
||||
@Override
|
||||
protected TokenStreamComponents createComponents(String fieldName) {
|
||||
Tokenizer tokenizer = new MockTokenizer(MockTokenizer.WHITESPACE, false);
|
||||
return new TokenStreamComponents(
|
||||
tokenizer, new JapaneseKatakanaUppercaseFilter(tokenizer));
|
||||
}
|
||||
};
|
||||
japaneseAnalyzer =
|
||||
new Analyzer() {
|
||||
@Override
|
||||
protected TokenStreamComponents createComponents(String fieldName) {
|
||||
Tokenizer tokenizer =
|
||||
new JapaneseTokenizer(
|
||||
newAttributeFactory(), null, false, JapaneseTokenizer.Mode.SEARCH);
|
||||
return new TokenStreamComponents(
|
||||
tokenizer, new JapaneseKatakanaUppercaseFilter(tokenizer));
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
@Override
|
||||
public void tearDown() throws Exception {
|
||||
keywordAnalyzer.close();
|
||||
japaneseAnalyzer.close();
|
||||
super.tearDown();
|
||||
}
|
||||
|
||||
public void testKanaUppercase() throws IOException {
|
||||
assertAnalyzesTo(
|
||||
keywordAnalyzer,
|
||||
"ァィゥェォヵㇰヶㇱㇲッㇳㇴㇵㇶㇷㇷ゚ㇸㇹㇺャュョㇻㇼㇽㇾㇿヮ",
|
||||
new String[] {"アイウエオカクケシスツトヌハヒフプヘホムヤユヨラリルレロワ"});
|
||||
assertAnalyzesTo(keywordAnalyzer, "ストップウォッチ", new String[] {"ストツプウオツチ"});
|
||||
assertAnalyzesTo(keywordAnalyzer, "サラニㇷ゚ カムイチェㇷ゚ ㇷ゚ㇷ゚", new String[] {"サラニプ", "カムイチエプ", "ププ"});
|
||||
}
|
||||
|
||||
public void testKanaUppercaseWithSurrogatePair() throws IOException {
|
||||
// 𠀋 : \uD840\uDC0B
|
||||
assertAnalyzesTo(
|
||||
keywordAnalyzer,
|
||||
"\uD840\uDC0Bストップウォッチ ストップ\uD840\uDC0Bウォッチ ストップウォッチ\uD840\uDC0B",
|
||||
new String[] {"\uD840\uDC0Bストツプウオツチ", "ストツプ\uD840\uDC0Bウオツチ", "ストツプウオツチ\uD840\uDC0B"});
|
||||
}
|
||||
|
||||
public void testKanaUppercaseWithJapaneseTokenizer() throws IOException {
|
||||
assertAnalyzesTo(
|
||||
japaneseAnalyzer, "時間をストップウォッチで測る", new String[] {"時間", "を", "ストツプウオツチ", "で", "測る"});
|
||||
}
|
||||
|
||||
public void testUnsupportedHalfWidthVariants() throws IOException {
|
||||
// The below result is expected since only full-width katakana is supported
|
||||
assertAnalyzesTo(keywordAnalyzer, "ｽﾄｯﾌﾟｳｫｯﾁ", new String[] {"ｽﾄｯﾌﾟｳｫｯﾁ"});
|
||||
}
|
||||
|
||||
public void testRandomData() throws IOException {
|
||||
checkRandomData(random(), keywordAnalyzer, 200 * RANDOM_MULTIPLIER);
|
||||
}
|
||||
|
||||
public void testEmptyTerm() throws IOException {
|
||||
assertAnalyzesTo(keywordAnalyzer, "", new String[] {});
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,61 @@
|
|||
/*
|
||||
* 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.ja;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.StringReader;
|
||||
import java.util.HashMap;
|
||||
import java.util.Map;
|
||||
import org.apache.lucene.analysis.TokenStream;
|
||||
import org.apache.lucene.analysis.Tokenizer;
|
||||
import org.apache.lucene.tests.analysis.BaseTokenStreamTestCase;
|
||||
import org.apache.lucene.tests.util.StringMockResourceLoader;
|
||||
|
||||
/** Tests for {@link JapaneseKatakanaUppercaseFilterFactory} */
|
||||
public class TestJapaneseKatakanaUppercaseFilterFactory extends BaseTokenStreamTestCase {
|
||||
public void testBasics() throws IOException {
|
||||
|
||||
Map<String, String> args = new HashMap<>();
|
||||
args.put("discardPunctuation", "false");
|
||||
|
||||
JapaneseTokenizerFactory tokenizerFactory = new JapaneseTokenizerFactory(args);
|
||||
|
||||
tokenizerFactory.inform(new StringMockResourceLoader(""));
|
||||
TokenStream tokenStream = tokenizerFactory.create(newAttributeFactory());
|
||||
((Tokenizer) tokenStream).setReader(new StringReader("ストップウォッチ"));
|
||||
|
||||
JapaneseKatakanaUppercaseFilterFactory factory =
|
||||
new JapaneseKatakanaUppercaseFilterFactory(new HashMap<>());
|
||||
tokenStream = factory.create(tokenStream);
|
||||
assertTokenStreamContents(tokenStream, new String[] {"ストツプウオツチ"});
|
||||
}
|
||||
|
||||
/** Test that bogus arguments result in exception */
|
||||
public void testBogusArguments() throws Exception {
|
||||
IllegalArgumentException expected =
|
||||
expectThrows(
|
||||
IllegalArgumentException.class,
|
||||
() ->
|
||||
new JapaneseKatakanaUppercaseFilterFactory(
|
||||
new HashMap<>() {
|
||||
{
|
||||
put("bogusArg", "bogusValue");
|
||||
}
|
||||
}));
|
||||
assertTrue(expected.getMessage().contains("Unknown parameters"));
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue