package org.infinispan.util.concurrent.locks.containers;
import org.infinispan.commons.equivalence.Equivalence;
import org.infinispan.util.concurrent.locks.OwnableReentrantLock;
import org.infinispan.util.concurrent.locks.OwnableRefCountingReentrantLock;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import java.util.concurrent.TimeUnit;
/**
* A per-entry lock container for OwnableReentrantLocks
*
* @author Manik Surtani
* @since 4.0
*/
public class OwnableReentrantPerEntryLockContainer extends AbstractPerEntryLockContainer<OwnableRefCountingReentrantLock> {
private static final Log log = LogFactory.getLog(OwnableReentrantPerEntryLockContainer.class);
@Override
protected Log getLog() {
return log;
}
public OwnableReentrantPerEntryLockContainer(int concurrencyLevel, Equivalence<Object> keyEquivalence) {
super(concurrencyLevel, keyEquivalence);
}
@Override
protected OwnableRefCountingReentrantLock newLock() {
return new OwnableRefCountingReentrantLock();
}
@Override
public boolean ownsLock(Object key, Object owner) {
OwnableReentrantLock l = getLockFromMap(key);
return l != null && owner.equals(l.getOwner());
}
@Override
public boolean isLocked(Object key) {
OwnableReentrantLock l = getLockFromMap(key);
return l != null && l.isLocked();
}
private OwnableReentrantLock getLockFromMap(Object key) {
return locks.get(key);
}
@Override
protected boolean tryLock(OwnableRefCountingReentrantLock lock, long timeout, TimeUnit unit, Object lockOwner) throws InterruptedException {
return lock.tryLock(lockOwner, timeout, unit);
}
@Override
protected void lock(OwnableRefCountingReentrantLock lock, Object lockOwner) {
lock.lock(lockOwner);
}
@Override
protected void unlock(OwnableRefCountingReentrantLock l, Object owner) {
l.unlock(owner);
}
}