org.apache.lucene.analysis.wikipedia.WikipediaTokenizerFactory Maven / Gradle / Ivy
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF 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.apache.lucene.analysis.wikipedia;
import java.util.Collections;
import java.util.Map;
import java.util.Set;
import org.apache.lucene.analysis.util.TokenizerFactory;
import org.apache.lucene.util.AttributeFactory;
/**
* Factory for {@link WikipediaTokenizer}.
*
* <fieldType name="text_wiki" class="solr.TextField" positionIncrementGap="100">
* <analyzer>
* <tokenizer class="solr.WikipediaTokenizerFactory"/>
* </analyzer>
* </fieldType>
*
* @since 3.1
* @lucene.spi {@value #NAME}
*/
public class WikipediaTokenizerFactory extends TokenizerFactory {
/** SPI name */
public static final String NAME = "wikipedia";
public static final String TOKEN_OUTPUT = "tokenOutput";
public static final String UNTOKENIZED_TYPES = "untokenizedTypes";
protected final int tokenOutput;
protected Set untokenizedTypes;
/** Creates a new WikipediaTokenizerFactory */
public WikipediaTokenizerFactory(Map args) {
super(args);
tokenOutput = getInt(args, TOKEN_OUTPUT, WikipediaTokenizer.TOKENS_ONLY);
untokenizedTypes = getSet(args, UNTOKENIZED_TYPES);
if (untokenizedTypes == null) {
untokenizedTypes = Collections.emptySet();
}
if (!args.isEmpty()) {
throw new IllegalArgumentException("Unknown parameters: " + args);
}
}
@Override
public WikipediaTokenizer create(AttributeFactory factory) {
return new WikipediaTokenizer(factory, tokenOutput, untokenizedTypes);
}
}