/*
* Copyright 2004-2009 the original author or authors.
*
* Licensed 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.compass.core.lucene.engine.analyzer;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.snowball.SnowballAnalyzer;
import org.compass.core.config.CompassSettings;
import org.compass.core.engine.SearchEngineException;
import org.compass.core.lucene.LuceneEnvironment;
/**
*
* @author kimchy
*
*/
public class SnowballAnalyzerBuilderDelegate implements AnalyzerBuilderDelegate {
private static final Log log = LogFactory.getLog(SnowballAnalyzerBuilderDelegate.class);
public Analyzer buildAnalyzer(String analyzerName, CompassSettings settings,
DefaultLuceneAnalyzerFactory analyzerFactory) throws SearchEngineException {
String snowballName = settings.getSetting(LuceneEnvironment.Analyzer.Snowball.NAME_TYPE);
if (snowballName == null) {
throw new SearchEngineException("When using a snowball analyzer, must set the + ["
+ LuceneEnvironment.Analyzer.Snowball.NAME_TYPE + "] setting for it");
}
if (log.isDebugEnabled()) {
log.debug("Snowball Anayzer uses Name [" + snowballName + "]");
}
return new SnowballAnalyzer(snowballName, analyzerFactory.parseStopWords(analyzerName, settings, new String[0]));
}
}