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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.core.StopAnalyzer;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.analysis.util.CharArraySet;
import org.elasticsearch.Version;
import org.elasticsearch.env.Environment;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.index.IndexSettings;
/**
*
*/
public class StandardAnalyzerProvider extends AbstractIndexAnalyzerProvider<StandardAnalyzer> {
private final StandardAnalyzer standardAnalyzer;
private final Version esVersion;
public StandardAnalyzerProvider(IndexSettings indexSettings, Environment env, String name, Settings settings) {
super(indexSettings, name, settings);
this.esVersion = indexSettings.getIndexVersionCreated();
final CharArraySet defaultStopwords;
if (esVersion.onOrAfter(Version.V_1_0_0_Beta1)) {
defaultStopwords = CharArraySet.EMPTY_SET;
} else {
defaultStopwords = StopAnalyzer.ENGLISH_STOP_WORDS_SET;
}
CharArraySet stopWords = Analysis.parseStopWords(env, settings, defaultStopwords);
int maxTokenLength = settings.getAsInt("max_token_length", StandardAnalyzer.DEFAULT_MAX_TOKEN_LENGTH);
standardAnalyzer = new StandardAnalyzer(stopWords);
standardAnalyzer.setVersion(version);
standardAnalyzer.setMaxTokenLength(maxTokenLength);
}
@Override
public StandardAnalyzer get() {
return this.standardAnalyzer;
}
}
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