Examples with IntegerSerializer org.apache.kafka.common.serialization.IntegerSerializer used on opensource projects

Example 86 with IntegerSerializer

use of org.apache.kafka.common.serialization.IntegerSerializer in project debezium by debezium.

the class KafkaClusterTest method shouldStartClusterAndAllowInteractiveProductionAndAutomaticConsumersToUseIt.

@Test
public void shouldStartClusterAndAllowInteractiveProductionAndAutomaticConsumersToUseIt() throws Exception {
    Testing.Debug.enable();
    final String topicName = "topicA";
    final CountDownLatch completion = new CountDownLatch(1);
    final int numMessages = 3;
    final AtomicLong messagesRead = new AtomicLong(0);
    // Start a cluster and create a topic ...
    cluster.addBrokers(1).startup();
    cluster.createTopics(topicName);
    // Consume messages asynchronously ...
    Stopwatch sw = Stopwatch.reusable().start();
    cluster.useTo().consumeIntegers(topicName, numMessages, 10, TimeUnit.SECONDS, completion::countDown, (key, value) -> {
        messagesRead.incrementAndGet();
        return true;
    });
    // Produce some messages interactively ...
    cluster.useTo().createProducer("manual", new StringSerializer(), new IntegerSerializer()).write(topicName, "key1", 1).write(topicName, "key2", 2).write(topicName, "key3", 3).close();
    // Wait for the consumer to to complete ...
    if (completion.await(10, TimeUnit.SECONDS)) {
        sw.stop();
        Testing.debug("The consumer completed normally in " + sw.durations());
    } else {
        Testing.debug("Consumer did not completed normally");
    }
    assertThat(messagesRead.get()).isEqualTo(numMessages);
}