/*
* The MIT License
*
* Copyright (c) 2010, InfraDNA, Inc.
*
* 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 hudson.slaves;
import java.io.IOException;
import java.util.logging.Logger;
import static hudson.util.TimeUnit2.*;
import static java.util.logging.Level.*;
/**
* {@link RetentionStrategy} implementation for {@link AbstractCloudComputer} that terminates
* it if it remains idle for X minutes.
*
* @author Kohsuke Kawaguchi
* @since 1.382
*/
public class CloudRetentionStrategy extends RetentionStrategy<AbstractCloudComputer> {
private int idleMinutes;
public CloudRetentionStrategy(int idleMinutes) {
this.idleMinutes = idleMinutes;
}
public synchronized long check(AbstractCloudComputer c) {
if (c.isIdle() && !disabled) {
final long idleMilliseconds = System.currentTimeMillis() - c.getIdleStartMilliseconds();
if (idleMilliseconds > MINUTES.toMillis(idleMinutes)) {
LOGGER.info("Disconnecting "+c.getName());
try {
c.getNode().terminate();
} catch (InterruptedException e) {
LOGGER.log(WARNING,"Failed to terminate "+c.getName(),e);
} catch (IOException e) {
LOGGER.log(WARNING,"Failed to terminate "+c.getName(),e);
}
}
}
return 1;
}
/**
* Try to connect to it ASAP.
*/
@Override
public void start(AbstractCloudComputer c) {
c.connect(false);
}
private static final Logger LOGGER = Logger.getLogger(CloudRetentionStrategy.class.getName());
public static boolean disabled = Boolean.getBoolean(CloudRetentionStrategy.class.getName()+".disabled");
}