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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.core;
import com.yahoo.jdisc.application.DeactivatedContainer;
/**
* @author Simon Thoresen Hult
*/
public class ContainerTermination implements DeactivatedContainer, Runnable {
private final Object lock = new Object();
private final Object appContext;
private Runnable task;
private boolean done;
public ContainerTermination(Object appContext) {
this.appContext = appContext;
}
@Override
public Object appContext() {
return appContext;
}
@Override
public void notifyTermination(Runnable task) {
boolean done;
synchronized (lock) {
if (this.task != null) {
throw new IllegalStateException();
}
this.task = task;
done = this.done;
}
if (done) {
task.run();
}
}
@Override
public void run() {
Runnable task;
synchronized (lock) {
done = true;
task = this.task;
}
if (task != null) {
task.run();
}
}
}
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