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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.pl;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.pl.PolishAnalyzer;
import org.apache.lucene.analysis.stempel.StempelFilter;
import org.apache.lucene.analysis.stempel.StempelStemmer;
import org.egothor.stemmer.Trie;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.env.Environment;
import org.elasticsearch.index.IndexSettings;
import org.elasticsearch.index.analysis.AbstractTokenFilterFactory;
import java.io.IOException;
public class PolishStemTokenFilterFactory extends AbstractTokenFilterFactory {
private final StempelStemmer stemmer;
public PolishStemTokenFilterFactory(IndexSettings indexSettings, Environment environment, String name, Settings settings) {
super(indexSettings, name, settings);
Trie tire;
try {
tire = StempelStemmer.load(PolishAnalyzer.class.getResourceAsStream(PolishAnalyzer.DEFAULT_STEMMER_FILE));
} catch (IOException ex) {
throw new RuntimeException("Unable to load default stemming tables", ex);
}
stemmer = new StempelStemmer(tire);
}
@Override public TokenStream create(TokenStream tokenStream) {
return new StempelFilter(tokenStream, stemmer);
}
}
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