org.elasticsearch.index.analysis.StandardHtmlStripAnalyzer Maven / Gradle / Ivy
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* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you 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.elasticsearch.index.analysis;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.core.LowerCaseFilter;
import org.apache.lucene.analysis.core.StopAnalyzer;
import org.apache.lucene.analysis.core.StopFilter;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.analysis.standard.StandardFilter;
import org.apache.lucene.analysis.standard.StandardTokenizer;
import org.apache.lucene.analysis.util.CharArraySet;
import org.apache.lucene.analysis.util.StopwordAnalyzerBase;
import org.apache.lucene.util.Version;
import java.io.IOException;
import java.io.Reader;
public class StandardHtmlStripAnalyzer extends StopwordAnalyzerBase {
/**
* @deprecated use {@link StandardHtmlStripAnalyzer#StandardHtmlStripAnalyzer(org.apache.lucene.util.Version,
* org.apache.lucene.analysis.util.CharArraySet)} instead
*/
@Deprecated
public StandardHtmlStripAnalyzer(Version version) {
super(version, StopAnalyzer.ENGLISH_STOP_WORDS_SET);
}
public StandardHtmlStripAnalyzer(Version version, CharArraySet stopwords) {
super(version, stopwords);
}
@Override
protected TokenStreamComponents createComponents(final String fieldName, final Reader reader) {
final StandardTokenizer src = new StandardTokenizer(matchVersion, reader);
src.setMaxTokenLength(StandardAnalyzer.DEFAULT_MAX_TOKEN_LENGTH);
TokenStream tok = new StandardFilter(matchVersion, src);
tok = new LowerCaseFilter(matchVersion, tok);
if (!stopwords.isEmpty()) {
tok = new StopFilter(matchVersion, tok, stopwords);
}
return new TokenStreamComponents(src, tok) {
@Override
protected void setReader(final Reader reader) throws IOException {
src.setMaxTokenLength(StandardAnalyzer.DEFAULT_MAX_TOKEN_LENGTH);
super.setReader(reader);
}
};
}
}