| /* |
| * 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.charfilter; |
| |
| |
| import org.apache.lucene.analysis.util.CharFilterFactory; |
| |
| import java.io.Reader; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.regex.Pattern; |
| |
| /** |
| * Factory for {@link HTMLStripCharFilter}. |
| * <pre class="prettyprint"> |
| * <fieldType name="text_html" class="solr.TextField" positionIncrementGap="100"> |
| * <analyzer> |
| * <charFilter class="solr.HTMLStripCharFilterFactory" escapedTags="a, title" /> |
| * <tokenizer class="solr.WhitespaceTokenizerFactory"/> |
| * </analyzer> |
| * </fieldType></pre> |
| * |
| * @since 3.1 |
| * @lucene.spi {@value #NAME} |
| */ |
| public class HTMLStripCharFilterFactory extends CharFilterFactory { |
| |
| /** SPI name */ |
| public static final String NAME = "htmlStrip"; |
| |
| final Set<String> escapedTags; |
| static final Pattern TAG_NAME_PATTERN = Pattern.compile("[^\\s,]+"); |
| |
| /** Creates a new HTMLStripCharFilterFactory */ |
| public HTMLStripCharFilterFactory(Map<String,String> args) { |
| super(args); |
| escapedTags = getSet(args, "escapedTags"); |
| if (!args.isEmpty()) { |
| throw new IllegalArgumentException("Unknown parameters: " + args); |
| } |
| } |
| |
| @Override |
| public HTMLStripCharFilter create(Reader input) { |
| HTMLStripCharFilter charFilter; |
| if (null == escapedTags) { |
| charFilter = new HTMLStripCharFilter(input); |
| } else { |
| charFilter = new HTMLStripCharFilter(input, escapedTags); |
| } |
| return charFilter; |
| } |
| } |