@Override
public void subscribe(final Subscriber<? super String> observer) {
observer.onSubscribe(EmptySubscription.INSTANCE);
t =
new Thread(
new Runnable() {
@Override
public void run() {
for (String s : valuesToReturn) {
if (s == null) {
System.out.println("throwing exception");
try {
Thread.sleep(100);
} catch (Throwable e) {
}
observer.onError(new NullPointerException());
return;
} else {
observer.onNext(s);
}
}
System.out.println("subscription complete");
observer.onComplete();
}
});
t.start();
}
@Override
public void request(long n) {
if (SubscriptionHelper.validateRequest(n)) {
return;
}
if (compareAndSet(false, true)) {
int i = 0;
final Subscriber<? super Integer> a = s;
final AtomicInteger c = counter;
while (!cancelled) {
a.onNext(i++);
c.incrementAndGet();
}
System.out.println("unsubscribed after: " + i);
}
}
@Test
public void testBPubSub() throws InterruptedException {
String topic = "test";
// Start pubsub server
Server server =
new Server("127.0.0.1", Settings.CLIENT_SUBSCRIBE_PORT, Settings.CLIENT_PUBLISH_PORT);
server.start();
// Create publisher and subscriber
Publisher publisher = new Publisher("127.0.0.1", Settings.CLIENT_PUBLISH_PORT);
Subscriber subscriber = new Subscriber("127.0.0.1", Settings.CLIENT_SUBSCRIBE_PORT);
// Subscribe to test topic
TestPubSubCallback cb = new TestPubSubCallback();
subscriber.subscribe(topic, cb);
Thread.sleep(1000);
// Publish a message
System.out.println("Publisher publishing " + "hello" + " on topic " + topic);
publisher.publish(topic, PubSubProtos.StringMessage.newBuilder().setMessage("hello").build());
cb.awaitMessage("hello");
// Publish a message
System.out.println("Publisher publishing " + "hello" + " on topic " + "badtest");
publisher.publish(
"badtest", PubSubProtos.StringMessage.newBuilder().setMessage("hello").build());
cb.awaitNoMessage("hello");
// Publish a message
System.out.println("Publisher publishing " + "hello2" + " on topic " + topic);
publisher.publish(topic, PubSubProtos.StringMessage.newBuilder().setMessage("hello2").build());
cb.awaitMessage("hello2");
// Unsubscribe
subscriber.unsubscribe(topic, cb);
Thread.sleep(1000);
// Publish a message
System.out.println("Publisher publishing " + "hello2" + " on topic " + topic);
publisher.publish(topic, PubSubProtos.StringMessage.newBuilder().setMessage("hello2").build());
cb.awaitNoMessage("hello2");
}
@Override
public void subscribe(Subscriber<? super String> observer) {
observer.onSubscribe(EmptySubscription.INSTANCE);
boolean errorThrown = false;
for (String s : valuesToReturn) {
if (s == null) {
System.out.println("throwing exception");
observer.onError(new NullPointerException());
errorThrown = true;
// purposefully not returning here so it will continue calling onNext
// so that we also test that we handle bad sequences like this
} else {
observer.onNext(s);
}
}
if (!errorThrown) {
observer.onComplete();
}
}
@Override
public void subscribe(final Subscriber<? super String> observer) {
observer.onSubscribe(EmptySubscription.INSTANCE);
t =
new Thread(
new Runnable() {
@Override
public void run() {
observer.onNext("hello");
observer.onComplete();
}
});
t.start();
}
@Override
public void subscribe(final Subscriber<? super String> observer) {
observer.onSubscribe(EmptySubscription.INSTANCE);
t =
new Thread(
new Runnable() {
@Override
public void run() {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
observer.onError(e);
}
observer.onNext("hello");
observer.onComplete();
}
});
t.start();
}
@Override
public void subscribe(Subscriber<? super String> observer) {
observer.onSubscribe(EmptySubscription.INSTANCE);
observer.onNext("hello");
observer.onComplete();
}