/*
* Copyright (c) 2011 LinkedIn, Inc
*
* Licensed 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 com.flaptor.indextank.query.analyzers;
import java.util.Map;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.snowball.SnowballFilter;
public class StemmerFilter extends AnalyzerFilter {
private String stemmerName;
public StemmerFilter(String stemmerName) {
this.stemmerName = stemmerName;
}
@Override
public TokenFilter filter(TokenStream stream) {
return new SnowballFilter(stream, stemmerName);
}
public static StemmerFilter buildFilter(Map<Object, Object> configuration) {
return new StemmerFilter((String)configuration.get("stemmerName"));
}
}