package org.apache.solr.analysis;
import java.io.IOException;
import org.apache.lucene.analysis.CharArraySet;
import org.apache.lucene.analysis.KeywordMarkerFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.solr.common.ResourceLoader;
import org.apache.solr.util.plugin.ResourceLoaderAware;
/**
* 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.
*/
/**
* Factory for {@link KeywordMarkerFilter}.
* <pre class="prettyprint" >
* <fieldType name="text_keyword" class="solr.TextField" positionIncrementGap="100">
* <analyzer>
* <tokenizer class="solr.WhitespaceTokenizerFactory"/>
* <filter class="solr.KeywordMarkerFilterFactory" protected="protectedkeyword.txt" ignoreCase="false"/>
* </analyzer>
* </fieldType></pre>
* @version $Id$
*/
public class KeywordMarkerFilterFactory extends BaseTokenFilterFactory implements ResourceLoaderAware {
public static final String PROTECTED_TOKENS = "protected";
private CharArraySet protectedWords;
private boolean ignoreCase;
public void inform(ResourceLoader loader) {
String wordFiles = args.get(PROTECTED_TOKENS);
ignoreCase = getBoolean("ignoreCase", false);
if (wordFiles != null) {
try {
protectedWords = getWordSet(loader, wordFiles, ignoreCase);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}
public boolean isIgnoreCase() {
return ignoreCase;
}
public TokenStream create(TokenStream input) {
return protectedWords == null ? input : new KeywordMarkerFilter(input, protectedWords);
}
}