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* 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
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package org.elasticsearch.indices.analysis.smartcn;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.cn.smart.HMMChineseTokenizer;
import org.apache.lucene.analysis.cn.smart.SmartChineseAnalyzer;
import org.elasticsearch.common.component.AbstractComponent;
import org.elasticsearch.common.inject.Inject;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.analysis.*;
import org.elasticsearch.indices.analysis.IndicesAnalysisService;
import java.io.Reader;
/**
* Registers indices level analysis components so, if not explicitly configured, will be shared
* among all indices.
*/
public class SmartChineseIndicesAnalysis extends AbstractComponent {
@Inject
public SmartChineseIndicesAnalysis(Settings settings, IndicesAnalysisService indicesAnalysisService) {
super(settings);
// Register smartcn analyzer
indicesAnalysisService.analyzerProviderFactories().put("smartcn", new PreBuiltAnalyzerProviderFactory("smartcn", AnalyzerScope.INDICES, new SmartChineseAnalyzer()));
// Register smartcn_tokenizer tokenizer
indicesAnalysisService.tokenizerFactories().put("smartcn_tokenizer", new PreBuiltTokenizerFactoryFactory(new TokenizerFactory() {
@Override
public String name() {
return "smartcn_tokenizer";
}
@Override
public Tokenizer create(Reader reader) {
return new HMMChineseTokenizer(reader);
}
}));
// Register smartcn_sentence tokenizer -- for backwards compat an alias to smartcn_tokenizer
indicesAnalysisService.tokenizerFactories().put("smartcn_sentence", new PreBuiltTokenizerFactoryFactory(new TokenizerFactory() {
@Override
public String name() {
return "smartcn_sentence";
}
@Override
public Tokenizer create(Reader reader) {
return new HMMChineseTokenizer(reader);
}
}));
// Register smartcn_word token filter -- noop
indicesAnalysisService.tokenFilterFactories().put("smartcn_word", new PreBuiltTokenFilterFactoryFactory(new TokenFilterFactory() {
@Override
public String name() {
return "smartcn_word";
}
@Override
public TokenStream create(TokenStream tokenStream) {
return tokenStream;
}
}));
}
}