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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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.elasticsearch.index.analysis;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.elasticsearch.Version;
import org.elasticsearch.cluster.metadata.IndexMetaData;
import org.elasticsearch.common.lucene.all.AllEntries;
import org.elasticsearch.common.lucene.all.AllTokenStream;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.analysis.compound.DictionaryCompoundWordTokenFilterFactory;
import org.elasticsearch.index.analysis.filter1.MyFilterTokenFilterFactory;
import org.elasticsearch.indices.analysis.AnalysisModule;
import org.elasticsearch.indices.analysis.AnalysisModule.AnalysisProvider;
import org.elasticsearch.plugins.AnalysisPlugin;
import org.elasticsearch.test.ESTestCase;
import org.elasticsearch.test.IndexSettingsModule;
import org.hamcrest.MatcherAssert;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static java.util.Collections.singletonList;
import static java.util.Collections.singletonMap;
import static org.hamcrest.Matchers.equalTo;
import static org.hamcrest.Matchers.hasItems;
import static org.hamcrest.Matchers.instanceOf;
public class CompoundAnalysisTests extends ESTestCase {
public void testDefaultsCompoundAnalysis() throws Exception {
Settings settings = getJsonSettings();
IndexSettings idxSettings = IndexSettingsModule.newIndexSettings("test", settings);
AnalysisModule analysisModule = new AnalysisModule(new Environment(settings), singletonList(new AnalysisPlugin() {
@Override
public Map<String, AnalysisProvider<TokenFilterFactory>> getTokenFilters() {
return singletonMap("myfilter", MyFilterTokenFilterFactory::new);
}
}));
TokenFilterFactory filterFactory = analysisModule.getAnalysisRegistry().buildTokenFilterFactories(idxSettings).get("dict_dec");
MatcherAssert.assertThat(filterFactory, instanceOf(DictionaryCompoundWordTokenFilterFactory.class));
}
public void testDictionaryDecompounder() throws Exception {
Settings[] settingsArr = new Settings[]{getJsonSettings(), getYamlSettings()};
for (Settings settings : settingsArr) {
List<String> terms = analyze(settings, "decompoundingAnalyzer", "donaudampfschiff spargelcremesuppe");
MatcherAssert.assertThat(terms.size(), equalTo(8));
MatcherAssert.assertThat(terms,
hasItems("donau", "dampf", "schiff", "donaudampfschiff", "spargel", "creme", "suppe", "spargelcremesuppe"));
}
}
private List<String> analyze(Settings settings, String analyzerName, String text) throws IOException {
IndexSettings idxSettings = IndexSettingsModule.newIndexSettings("test", settings);
AnalysisModule analysisModule = new AnalysisModule(new Environment(settings), singletonList(new AnalysisPlugin() {
@Override
public Map<String, AnalysisProvider<TokenFilterFactory>> getTokenFilters() {
return singletonMap("myfilter", MyFilterTokenFilterFactory::new);
}
}));
IndexAnalyzers indexAnalyzers = analysisModule.getAnalysisRegistry().build(idxSettings);
Analyzer analyzer = indexAnalyzers.get(analyzerName).analyzer();
AllEntries allEntries = new AllEntries();
allEntries.addText("field1", text, 1.0f);
TokenStream stream = AllTokenStream.allTokenStream("_all", text, 1.0f, analyzer);
stream.reset();
CharTermAttribute termAtt = stream.addAttribute(CharTermAttribute.class);
List<String> terms = new ArrayList<>();
while (stream.incrementToken()) {
String tokText = termAtt.toString();
terms.add(tokText);
}
return terms;
}
private Settings getJsonSettings() throws IOException {
String json = "/org/elasticsearch/index/analysis/test1.json";
return Settings.builder()
.loadFromStream(json, getClass().getResourceAsStream(json))
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT)
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
.build();
}
private Settings getYamlSettings() throws IOException {
String yaml = "/org/elasticsearch/index/analysis/test1.yml";
return Settings.builder()
.loadFromStream(yaml, getClass().getResourceAsStream(yaml))
.put(IndexMetaData.SETTING_VERSION_CREATED, Version.CURRENT)
.put(Environment.PATH_HOME_SETTING.getKey(), createTempDir().toString())
.build();
}
}
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