/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, Red Hat Middleware LLC, and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.infinispan.query.clustered.commandworkers;
import java.io.IOException;
import org.hibernate.search.query.engine.spi.DocumentExtractor;
import org.infinispan.Cache;
import org.infinispan.query.backend.KeyTransformationHandler;
import org.infinispan.query.logging.Log;
import org.infinispan.util.logging.LogFactory;
/**
* QueryExtractorUtil.
*
* Utility to extract the cache key of a DocumentExtractor.
*
* @author Israel Lacerra <israeldl@gmail.com>
* @author Marko Luksa
* @since 5.1
*/
public class QueryExtractorUtil {
private static final Log log = LogFactory.getLog(QueryExtractorUtil.class, Log.class);
private QueryExtractorUtil() {
}
public static Object extractKey(DocumentExtractor extractor, Cache<?, ?> cache, KeyTransformationHandler keyTransformationHandler, int docIndex) {
String bufferDocumentId;
try {
bufferDocumentId = (String) extractor.extract(docIndex).getId();
} catch (IOException e) {
log.error("Error while extracting key...", e);
return null;
}
Object key = keyTransformationHandler.stringToKey(bufferDocumentId, cache
.getAdvancedCache().getClassLoader());
return key;
}
}