/*
* 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;
import java.io.IOException;
import java.io.Reader;
import java.util.Map;
import org.apache.lucene.analysis.ASCIIFoldingFilter;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.LowerCaseFilter;
import org.apache.lucene.analysis.StopFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.standard.StandardFilter;
import org.apache.lucene.analysis.standard.StandardTokenizer;
import com.flaptor.indextank.query.analyzers.StopAnalyzer;
import com.google.common.collect.Maps;
public class IndexEngineAnalyzer extends StopAnalyzer {
@SuppressWarnings("deprecation")
public IndexEngineAnalyzer(Map<Object, Object> configuration) {
super(configuration);
}
public IndexEngineAnalyzer() {
this(Maps.newHashMap());
}
/** Constructs a {@link StandardTokenizer} filtered by a {@link
StandardFilter}, a {@link LowerCaseFilter} and a {@link StopFilter}. */
@Override
public TokenStream tokenStream(String fieldName, Reader reader) {
TokenStream result = super.tokenStream(fieldName, reader);
result = new ASCIIFoldingFilter(result);
return result;
}
@Override
public TokenStream reusableTokenStream(String fieldName, Reader reader) throws IOException {
return tokenStream(fieldName, reader);
}
public static Analyzer buildAnalyzer(Map<Object, Object> configuration) {
return new IndexEngineAnalyzer(configuration);
}
}