/** {@inheritDoc} */
@Override
protected Collection<E> dequeue0(int cnt) {
WindowHolder tup = ref.get();
AtomicInteger size = tup.size();
Collection<T> evts = tup.collection();
Collection<E> resCol = new ArrayList<>(cnt);
while (true) {
int curSize = size.get();
if (curSize > 0) {
if (size.compareAndSet(curSize, curSize - 1)) {
E res = pollInternal(evts, tup.set());
if (res != null) {
resCol.add(res);
if (resCol.size() >= cnt) return resCol;
} else {
size.incrementAndGet();
return resCol;
}
}
} else return resCol;
}
}
/**
* Poll evicted internal implementation.
*
* @return Evicted element.
*/
@Nullable
private E pollEvictedInternal() {
WindowHolder tup = ref.get();
AtomicInteger size = tup.size();
while (true) {
int curSize = size.get();
if (curSize > maxSize) {
if (size.compareAndSet(curSize, curSize - 1)) {
E evt = pollInternal(tup.collection(), tup.set());
if (evt != null) return evt;
else {
// No actual events in queue, it means that other thread is just adding event.
// return null as it is a concurrent add call.
size.incrementAndGet();
return null;
}
}
} else return null;
}
}
/**
* Tests that failover don't pick local node if it has been excluded from topology.
*
* @throws Exception If failed.
*/
@SuppressWarnings({"WaitNotInLoop", "UnconditionalWait", "unchecked"})
public void testFailoverTopology() throws Exception {
try {
Grid grid1 = startGrid(1);
Grid grid2 = startGrid(2);
assert grid1 != null;
assert grid2 != null;
grid1.compute().localDeployTask(JobTask.class, JobTask.class.getClassLoader());
try {
GridComputeTaskFuture<String> fut;
synchronized (mux) {
fut = grid1.compute().execute(JobTask.class, null);
mux.wait();
}
stopAndCancelGrid(2);
String res = fut.get();
info("Task result: " + res);
} catch (GridException e) {
info("Got unexpected grid exception: " + e);
}
info("Failed over: " + failCnt.get());
assert failCnt.get() == 1
: "Invalid fail over counter [expected=1, actual=" + failCnt.get() + ']';
} finally {
stopGrid(1);
// Stopping stopped instance just in case.
stopGrid(2);
}
}
/*
* Launches against the agent
*/
public void testSimpleLauncher() throws Exception {
Project project = workspace.getProject("p1");
Run bndrun = new Run(workspace, project.getBase(), project.getFile("one.bndrun"));
bndrun.setProperty("-runpath", "biz.aQute.remote.launcher");
bndrun.setProperty("-runbundles", "bsn-1,bsn-2");
bndrun.setProperty("-runremote", "test");
final RemoteProjectLauncherPlugin pl =
(RemoteProjectLauncherPlugin) bndrun.getProjectLauncher();
pl.prepare();
final CountDownLatch latch = new CountDownLatch(1);
final AtomicInteger exitCode = new AtomicInteger(-1);
List<? extends RunSession> sessions = pl.getRunSessions();
assertEquals(1, sessions.size());
final RunSession session = sessions.get(0);
Thread t =
new Thread("test-launch") {
public void run() {
try {
exitCode.set(session.launch());
} catch (Exception e) {
e.printStackTrace();
} finally {
latch.countDown();
}
}
};
t.start();
Thread.sleep(500);
for (Bundle b : context.getBundles()) {
System.out.println(b.getLocation());
}
assertEquals(4, context.getBundles().length);
String p1 = t1.getAbsolutePath();
System.out.println(p1);
assertNotNull(context.getBundle(p1));
assertNotNull(context.getBundle(t2.getAbsolutePath()));
pl.cancel();
latch.await();
assertEquals(-3, exitCode.get());
bndrun.close();
}
