带callback的future实现

jdk暂时不支持，所以只有自己实现带callback的future。

完成后callback的

final TaskPromise promise = new DefaultTaskPromise();
final TaskFuture future = promise.getFuture();
final CountDownLatch latch = new CountDownLatch(1);
future.onComplete(new TaskCallback() { // 添加结束 Callback
@Override
public TaskFuture apply(TaskFuture f) {
latch.countDown();
return f;
}
});
new Thread(new Runnable() {
@Override
public void run() {
promise.setSuccess(null);
}
}).start();
latch.await();

成功后callback的

final TaskPromise promise = new DefaultTaskPromise();
final TaskFuture future = promise.getFuture();
final CountDownLatch latch = new CountDownLatch(1);
future.onSuccess(new TaskCallback() { // 添加成功结束 Callback
@Override
public TaskFuture apply(TaskFuture f) {
latch.countDown();
return f;
}
});
new Thread(new Runnable() {
@Override
public void run() {
promise.setSuccess(null);
}
}).start();
latch.await();

参考：

http://isouth.org/archives/354.html