@Test
public void testNotificationExecutor() throws Exception {
ListeningExecutorService executor = SingletonHolder.getDefaultNotificationExecutor();
ThreadPoolExecutor tpExecutor =
(ThreadPoolExecutor)
setAccessible(executor.getClass().getDeclaredField("delegate")).get(executor);
BlockingQueue<Runnable> queue = tpExecutor.getQueue();
for (int idx = 0; idx < 100; idx++) {
final int idx2 = idx;
logger.info("Adding {}\t{}\t{}", idx, queue.size(), tpExecutor.getActiveCount());
executor.execute(
new Runnable() {
@Override
public void run() {
logger.info("in {}", idx2);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
logger.info("out {}", idx2);
}
});
}
executor.shutdown();
executor.awaitTermination(10, TimeUnit.SECONDS);
}
public static <T> T getInstance(Class<T> clazz, Object... params)
throws InstantiationException, IllegalAccessException, NoSuchMethodException,
SecurityException, IllegalArgumentException, InvocationTargetException {
if (INSTANCES.containsKey(clazz)) {
return (T) INSTANCES.get(clazz);
} else {
T instance = SingletonHolder.getInstance(clazz, params);
INSTANCES.put(clazz.getName(), instance);
return instance;
}
}
