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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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package org.apache.solr.analysis;
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import org.apache.lucene.analysis.TokenStream;
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import org.apache.lucene.analysis.CharStream;
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import org.apache.lucene.analysis.CharReader;
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import org.apache.lucene.analysis.Tokenizer;
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import java.io.Reader;
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* @version $Id: TokenizerChain.java 1065312 2011-01-30 16:08:25Z rmuir $
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// An analyzer that uses a tokenizer and a list of token filters to
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// create a TokenStream.
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public final class TokenizerChain extends SolrAnalyzer {
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final private CharFilterFactory[] charFilters;
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final private TokenizerFactory tokenizer;
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final private TokenFilterFactory[] filters;
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public TokenizerChain(TokenizerFactory tokenizer, TokenFilterFactory[] filters) {
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this(null,tokenizer,filters);
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public TokenizerChain(CharFilterFactory[] charFilters, TokenizerFactory tokenizer, TokenFilterFactory[] filters) {
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this.charFilters = charFilters;
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this.tokenizer = tokenizer;
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this.filters = filters;
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public CharFilterFactory[] getCharFilterFactories() { return charFilters; }
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public TokenizerFactory getTokenizerFactory() { return tokenizer; }
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public TokenFilterFactory[] getTokenFilterFactories() { return filters; }
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public Reader charStream(Reader reader){
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if( charFilters != null && charFilters.length > 0 ){
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CharStream cs = CharReader.get( reader );
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for (int i=0; i<charFilters.length; i++) {
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cs = charFilters[i].create(cs);
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public TokenStreamInfo getStream(String fieldName, Reader reader) {
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Tokenizer tk = tokenizer.create(charStream(reader));
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for (int i=0; i<filters.length; i++) {
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ts = filters[i].create(ts);
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return new TokenStreamInfo(tk,ts);
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public String toString() {
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StringBuilder sb = new StringBuilder("TokenizerChain(");
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for (CharFilterFactory filter: charFilters) {
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for (TokenFilterFactory filter: filters) {