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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.curator;
import com.yahoo.path.Path;
import java.time.Duration;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Class that holds two locks, originally used for transitioning from one lock to
* another, where you need to hold both the old lock and the new lock in the
* transition period. Locks are acquired in constructor.
*
* @author hmusum
*/
public class MultiplePathsLock extends Lock {
private static final Logger log = Logger.getLogger(MultiplePathsLock.class.getName());
private final Lock oldLock;
public MultiplePathsLock(Path newLockPath, Path oldLockPath, Duration timeout, Curator curator) {
super(newLockPath.getAbsolute(), curator);
log.log(Level.INFO, "Acquiring lock " + oldLockPath);
this.oldLock = curator.lock(oldLockPath, timeout);;
log.log(Level.INFO, "Acquiring lock " + lockPath());
super.acquire(timeout);
}
@Override
public void close() {
log.log(Level.INFO, "Closing lock " + lockPath());
super.close();
log.log(Level.INFO, "Closing lock " + oldLock.lockPath());
oldLock.close();
}
}
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