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* 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
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package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.WhitespaceTokenizer;
import org.apache.lucene.analysis.en.PorterStemFilter;
import org.apache.lucene.analysis.snowball.SnowballFilter;
import org.elasticsearch.Version;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.ESTokenStreamTestCase;
import org.elasticsearch.test.VersionUtils;
import java.io.IOException;
import java.io.StringReader;
import static com.carrotsearch.randomizedtesting.RandomizedTest.scaledRandomIntBetween;
import static org.elasticsearch.cluster.metadata.IndexMetaData.SETTING_VERSION_CREATED;
import static org.hamcrest.Matchers.instanceOf;
public class StemmerTokenFilterFactoryTests extends ESTokenStreamTestCase {
public void testEnglishFilterFactory() throws IOException {
int iters = scaledRandomIntBetween(20, 100);
for (int i = 0; i < iters; i++) {
Version v = VersionUtils.randomVersion(random());
Settings settings = Settings.builder()
.put("index.analysis.filter.my_english.type", "stemmer")
.put("index.analysis.filter.my_english.language", "english")
.put("index.analysis.analyzer.my_english.tokenizer","whitespace")
.put("index.analysis.analyzer.my_english.filter","my_english")
.put(SETTING_VERSION_CREATED,v)
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
.build();
ESTestCase.TestAnalysis analysis = AnalysisTestsHelper.createTestAnalysisFromSettings(settings);
TokenFilterFactory tokenFilter = analysis.tokenFilter.get("my_english");
assertThat(tokenFilter, instanceOf(StemmerTokenFilterFactory.class));
Tokenizer tokenizer = new WhitespaceTokenizer();
tokenizer.setReader(new StringReader("foo bar"));
TokenStream create = tokenFilter.create(tokenizer);
IndexAnalyzers indexAnalyzers = analysis.indexAnalyzers;
NamedAnalyzer analyzer = indexAnalyzers.get("my_english");
assertThat(create, instanceOf(PorterStemFilter.class));
assertAnalyzesTo(analyzer, "consolingly", new String[]{"consolingli"});
}
}
public void testPorter2FilterFactory() throws IOException {
int iters = scaledRandomIntBetween(20, 100);
for (int i = 0; i < iters; i++) {
Version v = VersionUtils.randomVersion(random());
Settings settings = Settings.builder()
.put("index.analysis.filter.my_porter2.type", "stemmer")
.put("index.analysis.filter.my_porter2.language", "porter2")
.put("index.analysis.analyzer.my_porter2.tokenizer","whitespace")
.put("index.analysis.analyzer.my_porter2.filter","my_porter2")
.put(SETTING_VERSION_CREATED,v)
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
.build();
ESTestCase.TestAnalysis analysis = AnalysisTestsHelper.createTestAnalysisFromSettings(settings);
TokenFilterFactory tokenFilter = analysis.tokenFilter.get("my_porter2");
assertThat(tokenFilter, instanceOf(StemmerTokenFilterFactory.class));
Tokenizer tokenizer = new WhitespaceTokenizer();
tokenizer.setReader(new StringReader("foo bar"));
TokenStream create = tokenFilter.create(tokenizer);
IndexAnalyzers indexAnalyzers = analysis.indexAnalyzers;
NamedAnalyzer analyzer = indexAnalyzers.get("my_porter2");
assertThat(create, instanceOf(SnowballFilter.class));
assertAnalyzesTo(analyzer, "possibly", new String[]{"possibl"});
}
}
}