rapture.kernel.IndexCache Maven / Gradle / Ivy
/**
* The MIT License (MIT)
*
* Copyright (c) 2011-2016 Incapture Technologies LLC
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package rapture.kernel;
import rapture.index.IndexHandler;
import rapture.table.IndexFactory;
import java.util.HashMap;
import java.util.Map;
import org.apache.log4j.Logger;
/**
* The index cache, like the repo cache, holds instantiated index
* instances, and are created on demand.
*
* @author alan
*
*/
public class IndexCache {
private static Logger log = Logger.getLogger(IndexCache.class);
private Map indexCache;
public IndexCache() {
indexCache = new HashMap();
}
public IndexHandler getIndex(String indexURI) {
if (indexCache.containsKey(indexURI)) {
return indexCache.get(indexURI);
} else {
log.info("Index " + indexURI + " not cached, loading config");
try {
IndexHandler index = IndexFactory.getIndex(indexURI);
indexCache.put(indexURI, index);
return index;
} catch (Exception e) {
log.error("Error getting index " + e.getMessage());
}
}
return null;
}
}