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 /*
  * Copyright 2014 JBoss, by Red Hat, 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 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.apache.lucene.util.Version;
import  org.kie.uberfire.metadata.backend.lucene.analyzer.LowerCaseTokenizer;

A specialise analyzer to include special characters in attribute names, such as "-"
public class RuleAttributeNameAnalyzer extends Analyzer {
    private final Version matchVersion;
    public RuleAttributeNameAnalyzerfinal Version matchVersion ) {
        super();
        this. = matchVersion;
    }
    @Override
    protected TokenStreamComponents createComponentsfinal String fieldName,
                                                      final Reader reader ) {
        final LowerCaseTokenizer src = new LowerCaseTokenizer( ,
                                                               reader );
        final TokenStream tok = new LowerCaseFilter( ,
                                                     src );
        return new TokenStreamComponents( src,
                                          tok );
    }
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