/**
* The MIT License
* Copyright (c) 2012 TORCH GmbH
*
* 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 org.graylog2.plugin.indexer.retention;
import com.google.common.base.Stopwatch;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.util.Map;
import java.util.concurrent.TimeUnit;
/**
* @author Lennart Koopmann <lennart@torch.sh>
*/
public abstract class RetentionStrategy {
private static final Logger LOG = LoggerFactory.getLogger(RetentionStrategy.class);
private final IndexManagement indexManagement;
public enum Type {
DELETE,
CLOSE
}
protected RetentionStrategy(IndexManagement indexManagement) {
this.indexManagement = indexManagement;
}
protected abstract void onMessage(Map<String, String> message);
protected abstract boolean iterates();
protected abstract Type getType();
public void runStrategy(String indexName) {
Stopwatch sw = Stopwatch.createStarted();
if (iterates()) {
// TODO: Run per message.
}
// Delete or close index.
switch (getType()) {
case DELETE:
LOG.info("Strategy is deleting.");
indexManagement.delete(indexName);
break;
case CLOSE:
LOG.info("Strategy is closing.");
indexManagement.close(indexName);
break;
}
LOG.info("Finished index retention strategy [" + this.getClass().getCanonicalName() + "] for " +
"index <{}> in {}ms.", indexName, sw.stop().elapsed(TimeUnit.MILLISECONDS));
}
}