package org.apache.logging.log4j.core.config;
import java.util.Date;
import java.util.concurrent.Delayed;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class CronScheduledFuture<V> implements ScheduledFuture<V> {
private volatile FutureData futureData;
public CronScheduledFuture(final ScheduledFuture<V> future, final Date runDate) {
this.futureData = new FutureData(future, runDate);
}
public Date getFireTime() {
return futureData.runDate;
}
void reset(final ScheduledFuture<?> future, final Date runDate) {
futureData = new FutureData(future, runDate);
}
@Override
public long getDelay(final TimeUnit unit) {
return futureData.scheduledFuture.getDelay(unit);
}
@Override
public int compareTo(final Delayed delayed) {
return futureData.scheduledFuture.compareTo(delayed);
}
@Override
public boolean cancel(final boolean mayInterruptIfRunning) {
return futureData.scheduledFuture.cancel(mayInterruptIfRunning);
}
@Override
public boolean isCancelled() {
return futureData.scheduledFuture.isCancelled();
}
@Override
public boolean isDone() {
return futureData.scheduledFuture.isDone();
}
@Override
@SuppressWarnings("unchecked")
public V get() throws InterruptedException, ExecutionException {
return (V) futureData.scheduledFuture.get();
}
@Override
@SuppressWarnings("unchecked")
public V get(final long timeout, final TimeUnit unit)
throws InterruptedException, ExecutionException, TimeoutException {
return (V) futureData.scheduledFuture.get(timeout, unit);
}
private class FutureData {
private final ScheduledFuture<?> scheduledFuture;
private final Date runDate;
FutureData(final ScheduledFuture<?> future, final Date runDate) {
this.scheduledFuture = future;
this.runDate = runDate;
}
}
}