package org.apache.lucene.analysis.hunspell;
/*
* 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.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.io.StringReader;
import java.util.Arrays;
import java.util.Collections;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.BaseTokenStreamTestCase;
import org.apache.lucene.analysis.MockTokenizer;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.KeywordTokenizer;
import org.apache.lucene.analysis.hunspell.Dictionary;
import org.apache.lucene.analysis.hunspell.HunspellStemFilter;
import org.apache.lucene.analysis.miscellaneous.SetKeywordMarkerFilter;
import org.apache.lucene.analysis.util.CharArraySet;
import org.apache.lucene.util.IOUtils;
import org.junit.AfterClass;
import org.junit.BeforeClass;
public class TestHunspellStemFilter extends BaseTokenStreamTestCase {
private static Dictionary dictionary;
@BeforeClass
public static void beforeClass() throws Exception {
InputStream affixStream = TestStemmer.class.getResourceAsStream("simple.aff");
InputStream dictStream = TestStemmer.class.getResourceAsStream("simple.dic");
try {
dictionary = new Dictionary(affixStream, dictStream);
} finally {
IOUtils.closeWhileHandlingException(affixStream, dictStream);
}
}
@AfterClass
public static void afterClass() {
dictionary = null;
}
/** Simple test for KeywordAttribute */
public void testKeywordAttribute() throws IOException {
MockTokenizer tokenizer = new MockTokenizer(new StringReader("lucene is awesome"));
tokenizer.setEnableChecks(true);
HunspellStemFilter filter = new HunspellStemFilter(tokenizer, dictionary);
assertTokenStreamContents(filter, new String[]{"lucene", "lucen", "is", "awesome"}, new int[] {1, 0, 1, 1});
// assert with keyword marker
tokenizer = new MockTokenizer(new StringReader("lucene is awesome"));
CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, Arrays.asList("Lucene"), true);
filter = new HunspellStemFilter(new SetKeywordMarkerFilter(tokenizer, set), dictionary);
assertTokenStreamContents(filter, new String[]{"lucene", "is", "awesome"}, new int[] {1, 1, 1});
}
/** simple test for longestOnly option */
public void testLongestOnly() throws IOException {
MockTokenizer tokenizer = new MockTokenizer(new StringReader("lucene is awesome"));
tokenizer.setEnableChecks(true);
HunspellStemFilter filter = new HunspellStemFilter(tokenizer, dictionary, true, true);
assertTokenStreamContents(filter, new String[]{"lucene", "is", "awesome"}, new int[] {1, 1, 1});
}
/** blast some random strings through the analyzer */
public void testRandomStrings() throws Exception {
Analyzer analyzer = new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new MockTokenizer(reader, MockTokenizer.WHITESPACE, false);
return new TokenStreamComponents(tokenizer, new HunspellStemFilter(tokenizer, dictionary));
}
};
checkRandomData(random(), analyzer, 1000*RANDOM_MULTIPLIER);
}
public void testEmptyTerm() throws IOException {
Analyzer a = new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new KeywordTokenizer(reader);
return new TokenStreamComponents(tokenizer, new HunspellStemFilter(tokenizer, dictionary));
}
};
checkOneTerm(a, "", "");
}
public void testIgnoreCaseNoSideEffects() throws Exception {
final Dictionary d;
InputStream affixStream = TestStemmer.class.getResourceAsStream("simple.aff");
InputStream dictStream = TestStemmer.class.getResourceAsStream("simple.dic");
try {
d = new Dictionary(affixStream, Collections.singletonList(dictStream), true);
} finally {
IOUtils.closeWhileHandlingException(affixStream, dictStream);
}
Analyzer a = new Analyzer() {
@Override
protected TokenStreamComponents createComponents(String fieldName, Reader reader) {
Tokenizer tokenizer = new KeywordTokenizer(reader);
return new TokenStreamComponents(tokenizer, new HunspellStemFilter(tokenizer, d));
}
};
checkOneTerm(a, "NoChAnGy", "NoChAnGy");
}
}