Examples with HeartbeatGenerator org.opennms.core.ipc.sink.kafka.HeartbeatSinkPerfIT.HeartbeatGenerator used on opensource projects

Example 1 with HeartbeatGenerator

use of org.opennms.core.ipc.sink.kafka.HeartbeatSinkPerfIT.HeartbeatGenerator in project opennms by OpenNMS.

the class HeartbeatSinkIT method canConsumeMessagesInParallel.

@Test(timeout = 60000)
@Ignore("flapping")
public void canConsumeMessagesInParallel() throws Exception {
    final int NUM_CONSUMER_THREADS = 7;
    final HeartbeatModule parallelHeartbeatModule = new HeartbeatModule() {

        @Override
        public int getNumConsumerThreads() {
            return NUM_CONSUMER_THREADS;
        }
    };
    final ThreadLockingMessageConsumer<Heartbeat, Heartbeat> consumer = new ThreadLockingMessageConsumer<>(parallelHeartbeatModule);
    final CompletableFuture<Integer> future = consumer.waitForThreads(NUM_CONSUMER_THREADS);
    try {
        consumerManager.registerConsumer(consumer);
        final SyncDispatcher<Heartbeat> dispatcher = remoteMessageDispatcherFactory.createSyncDispatcher(HeartbeatModule.INSTANCE);
        final HeartbeatGenerator generator = new HeartbeatGenerator(dispatcher, 100.0);
        generator.start();
        // Wait until we have NUM_CONSUMER_THREADS locked
        future.get();
        // Take a snooze
        Thread.sleep(TimeUnit.SECONDS.toMillis(5));
        // Verify that there aren't more than NUM_CONSUMER_THREADS waiting
        assertEquals(0, consumer.getNumExtraThreadsWaiting());
        generator.stop();
    } finally {
        consumerManager.unregisterConsumer(consumer);
    }
}