/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* 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 org.kie.workbench.common.services.refactoring.backend.server.indexing;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.core.LowerCaseFilter;
import org.uberfire.ext.metadata.backend.lucene.analyzer.LowerCaseTokenizer;
/**
* A specialise analyzer to include special characters in attribute names, such as "-"
*/
public class LowerCaseOnlyAnalyzer extends Analyzer {
public LowerCaseOnlyAnalyzer() {
super();
}
@Override
protected TokenStreamComponents createComponents( final String fieldName ) {
final LowerCaseTokenizer src = new LowerCaseTokenizer();
final TokenStream tok = new LowerCaseFilter( src );
return new TokenStreamComponents( src, tok );
}
}