@Test
public void testDurableSubscription() {
HazelcastInstance local = createHazelcastInstance();
ITopic<String> topic = local.getReliableTopic("topic");
final DurableMessageListener<String> listener = new DurableMessageListener<String>();
String id = topic.addMessageListener(listener);
topic.publish("item1");
assertTrueEventually(
new AssertTask() {
@Override
public void run() throws Exception {
assertTrue(listener.objects.contains("item1"));
}
});
topic.removeMessageListener(id);
// todo: this part is still racy because we don't know when the listener is terminated.
topic.publish("item2");
topic.publish("item3");
topic.addMessageListener(listener);
assertTrueEventually(
new AssertTask() {
@Override
public void run() throws Exception {
assertEquals(asList("item1", "item2", "item3"), listener.objects);
assertEquals(asList(0l, 1l, 2l), listener.sequences);
}
});
}
@Before
public void setupCluster() {
Config config = new Config();
config.addRingBufferConfig(
new RingbufferConfig("when*").setCapacity(100).setTimeToLiveSeconds(5));
hazelcastFactory.newHazelcastInstance(config);
ClientConfig clientConfig = new ClientConfig();
clientConfig.addReliableTopicConfig(
new ClientReliableTopicConfig("whenError_*")
.setTopicOverloadPolicy(TopicOverloadPolicy.ERROR));
clientConfig.addReliableTopicConfig(
new ClientReliableTopicConfig("whenDiscardOldest_*")
.setTopicOverloadPolicy(TopicOverloadPolicy.DISCARD_OLDEST));
clientConfig.addReliableTopicConfig(
new ClientReliableTopicConfig("whenDiscardNewest_*")
.setTopicOverloadPolicy(TopicOverloadPolicy.DISCARD_NEWEST));
clientConfig.addReliableTopicConfig(
new ClientReliableTopicConfig("whenBlock_*")
.setTopicOverloadPolicy(TopicOverloadPolicy.BLOCK));
HazelcastInstance client = hazelcastFactory.newHazelcastClient(clientConfig);
serializationService = ((HazelcastClientProxy) client).getSerializationService();
String topicName = getTestMethodName();
topic = client.<String>getReliableTopic(topicName);
ringbuffer = ((ClientReliableTopicProxy<String>) topic).getRingbuffer();
}
@Before
public void setup() {
ReliableTopicConfig topicConfig = new ReliableTopicConfig("reliableTopic*");
RingbufferConfig ringbufferConfig = new RingbufferConfig(topicConfig.getName());
ringbufferConfig.setCapacity(CAPACITY);
Config config = new Config();
config.addReliableTopicConfig(topicConfig);
config.addRingBufferConfig(ringbufferConfig);
HazelcastInstance[] instances = newInstances(config);
local = instances[0];
HazelcastInstance target = instances[instances.length - 1];
String name = randomNameOwnedBy(target, "reliableTopic");
topic = (ReliableTopicProxy<String>) local.<String>getReliableTopic(name);
}