List of usage examples for org.springframework.kafka.core KafkaTemplate KafkaTemplate
public KafkaTemplate(ProducerFactory<K, V> producerFactory)
From source file:org.springframework.kafka.listener.TransactionalContainerTests.java
@SuppressWarnings({ "rawtypes", "unchecked" })
@Test/*from w ww . ja v a 2 s .c om*/
public void testConsumeAndProduceTransactionExternalTM() throws Exception {
Consumer consumer = mock(Consumer.class);
final TopicPartition topicPartition = new TopicPartition("foo", 0);
willAnswer(i -> {
((ConsumerRebalanceListener) i.getArgument(1))
.onPartitionsAssigned(Collections.singletonList(topicPartition));
return null;
}).given(consumer).subscribe(any(Collection.class), any(ConsumerRebalanceListener.class));
final ConsumerRecords records = new ConsumerRecords(Collections.singletonMap(topicPartition,
Collections.singletonList(new ConsumerRecord<>("foo", 0, 0, "key", "value"))));
final AtomicBoolean done = new AtomicBoolean();
willAnswer(i -> {
if (done.compareAndSet(false, true)) {
return records;
} else {
Thread.sleep(500);
return null;
}
}).given(consumer).poll(any(Duration.class));
ConsumerFactory cf = mock(ConsumerFactory.class);
willReturn(consumer).given(cf).createConsumer("group", "", null);
Producer producer = mock(Producer.class);
final CountDownLatch closeLatch = new CountDownLatch(1);
willAnswer(i -> {
closeLatch.countDown();
return null;
}).given(producer).close();
final ProducerFactory pf = mock(ProducerFactory.class);
given(pf.transactionCapable()).willReturn(true);
given(pf.createProducer()).willReturn(producer);
ContainerProperties props = new ContainerProperties("foo");
props.setGroupId("group");
props.setTransactionManager(new SomeOtherTransactionManager());
final KafkaTemplate template = new KafkaTemplate(pf);
props.setMessageListener((MessageListener<String, String>) m -> {
template.send("bar", "baz");
template.sendOffsetsToTransaction(Collections.singletonMap(new TopicPartition(m.topic(), m.partition()),
new OffsetAndMetadata(m.offset() + 1)));
});
KafkaMessageListenerContainer container = new KafkaMessageListenerContainer<>(cf, props);
container.setBeanName("commit");
container.start();
assertThat(closeLatch.await(10, TimeUnit.SECONDS)).isTrue();
InOrder inOrder = inOrder(producer);
inOrder.verify(producer).beginTransaction();
ArgumentCaptor<ProducerRecord> captor = ArgumentCaptor.forClass(ProducerRecord.class);
inOrder.verify(producer).send(captor.capture(), any(Callback.class));
assertThat(captor.getValue()).isEqualTo(new ProducerRecord("bar", "baz"));
inOrder.verify(producer).sendOffsetsToTransaction(
Collections.singletonMap(topicPartition, new OffsetAndMetadata(1)), "group");
inOrder.verify(producer).commitTransaction();
inOrder.verify(producer).close();
container.stop();
verify(pf).createProducer();
}
From source file:org.springframework.kafka.listener.TransactionalContainerTests.java
@SuppressWarnings("unchecked") @Test/*ww w . j a v a2s . c o m*/ public void testRollbackRecord() throws Exception { logger.info("Start testRollbackRecord"); Map<String, Object> props = KafkaTestUtils.consumerProps("txTest1", "false", embeddedKafka); props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest"); props.put(ConsumerConfig.GROUP_ID_CONFIG, "group"); props.put(ConsumerConfig.ISOLATION_LEVEL_CONFIG, "read_committed"); DefaultKafkaConsumerFactory<Integer, String> cf = new DefaultKafkaConsumerFactory<>(props); ContainerProperties containerProps = new ContainerProperties(topic1, topic2); containerProps.setGroupId("group"); containerProps.setPollTimeout(10_000); Map<String, Object> senderProps = KafkaTestUtils.producerProps(embeddedKafka); senderProps.put(ProducerConfig.RETRIES_CONFIG, 1); DefaultKafkaProducerFactory<Integer, String> pf = new DefaultKafkaProducerFactory<>(senderProps); pf.setTransactionIdPrefix("rr."); final KafkaTemplate<Integer, String> template = new KafkaTemplate<>(pf); final AtomicBoolean failed = new AtomicBoolean(); final CountDownLatch latch = new CountDownLatch(3); final AtomicReference<String> transactionalId = new AtomicReference<>(); containerProps.setMessageListener((MessageListener<Integer, String>) message -> { latch.countDown(); if (failed.compareAndSet(false, true)) { throw new RuntimeException("fail"); } /* * Send a message to topic2 and wait for it so we don't stop the container too soon. */ if (message.topic().equals(topic1)) { template.send(topic2, "bar"); template.flush(); transactionalId.set(KafkaTestUtils.getPropertyValue( ProducerFactoryUtils.getTransactionalResourceHolder(pf).getProducer(), "delegate.transactionManager.transactionalId", String.class)); } }); @SuppressWarnings({ "rawtypes" }) KafkaTransactionManager tm = new KafkaTransactionManager(pf); containerProps.setTransactionManager(tm); KafkaMessageListenerContainer<Integer, String> container = new KafkaMessageListenerContainer<>(cf, containerProps); container.setBeanName("testRollbackRecord"); container.start(); template.setDefaultTopic(topic1); template.executeInTransaction(t -> { template.sendDefault(0, 0, "foo"); return null; }); assertThat(latch.await(60, TimeUnit.SECONDS)).isTrue(); container.stop(); Consumer<Integer, String> consumer = cf.createConsumer(); final CountDownLatch subsLatch = new CountDownLatch(1); consumer.subscribe(Arrays.asList(topic1), new ConsumerRebalanceListener() { @Override public void onPartitionsRevoked(Collection<TopicPartition> partitions) { // empty } @Override public void onPartitionsAssigned(Collection<TopicPartition> partitions) { subsLatch.countDown(); } }); ConsumerRecords<Integer, String> records = null; int n = 0; while (subsLatch.getCount() > 0 && n++ < 600) { records = consumer.poll(Duration.ofMillis(100)); } assertThat(subsLatch.await(1, TimeUnit.MILLISECONDS)).isTrue(); assertThat(records.count()).isEqualTo(0); // depending on timing, the position might include the offset representing the commit in the log assertThat(consumer.position(new TopicPartition(topic1, 0))).isGreaterThanOrEqualTo(1L); assertThat(transactionalId.get()).startsWith("rr.group.txTopic"); assertThat(KafkaTestUtils.getPropertyValue(pf, "consumerProducers", Map.class)).isEmpty(); logger.info("Stop testRollbackRecord"); pf.destroy(); consumer.close(); }
From source file:org.springframework.kafka.listener.TransactionalContainerTests.java
@Test public void testMaxFailures() throws Exception { logger.info("Start testMaxFailures"); Map<String, Object> props = KafkaTestUtils.consumerProps("txTestMaxFailures", "false", embeddedKafka); props.put(ConsumerConfig.AUTO_OFFSET_RESET_CONFIG, "earliest"); props.put(ConsumerConfig.GROUP_ID_CONFIG, "group"); props.put(ConsumerConfig.ISOLATION_LEVEL_CONFIG, "read_committed"); DefaultKafkaConsumerFactory<Integer, String> cf = new DefaultKafkaConsumerFactory<>(props); ContainerProperties containerProps = new ContainerProperties(topic3); containerProps.setPollTimeout(10_000); Map<String, Object> senderProps = KafkaTestUtils.producerProps(embeddedKafka); senderProps.put(ProducerConfig.RETRIES_CONFIG, 1); DefaultKafkaProducerFactory<Object, Object> pf = new DefaultKafkaProducerFactory<>(senderProps); pf.setTransactionIdPrefix("maxAtt."); final KafkaTemplate<Object, Object> template = new KafkaTemplate<>(pf); final CountDownLatch latch = new CountDownLatch(1); AtomicReference<String> data = new AtomicReference<>(); containerProps.setMessageListener((MessageListener<Integer, String>) message -> { data.set(message.value());/* www.jav a2 s. c om*/ if (message.offset() == 0) { throw new RuntimeException("fail for max failures"); } latch.countDown(); }); @SuppressWarnings({ "rawtypes", "unchecked" }) KafkaTransactionManager tm = new KafkaTransactionManager(pf); containerProps.setTransactionManager(tm); KafkaMessageListenerContainer<Integer, String> container = new KafkaMessageListenerContainer<>(cf, containerProps); container.setBeanName("testMaxFailures"); final CountDownLatch recoverLatch = new CountDownLatch(1); DeadLetterPublishingRecoverer recoverer = new DeadLetterPublishingRecoverer(template) { @Override public void accept(ConsumerRecord<?, ?> record, Exception exception) { super.accept(record, exception); recoverLatch.countDown(); } }; DefaultAfterRollbackProcessor<Integer, String> afterRollbackProcessor = spy( new DefaultAfterRollbackProcessor<>(recoverer, 3)); container.setAfterRollbackProcessor(afterRollbackProcessor); final CountDownLatch stopLatch = new CountDownLatch(1); container.setApplicationEventPublisher(e -> { if (e instanceof ConsumerStoppedEvent) { stopLatch.countDown(); } }); container.start(); template.setDefaultTopic(topic3); template.executeInTransaction(t -> { RecordHeaders headers = new RecordHeaders( new RecordHeader[] { new RecordHeader("baz", "qux".getBytes()) }); ProducerRecord<Object, Object> record = new ProducerRecord<>(topic3, 0, 0, "foo", headers); template.send(record); template.sendDefault(0, 0, "bar"); return null; }); assertThat(latch.await(60, TimeUnit.SECONDS)).isTrue(); assertThat(data.get()).isEqualTo("bar"); assertThat(recoverLatch.await(10, TimeUnit.SECONDS)).isTrue(); container.stop(); Consumer<Integer, String> consumer = cf.createConsumer(); embeddedKafka.consumeFromAnEmbeddedTopic(consumer, topic3DLT); ConsumerRecord<Integer, String> dltRecord = KafkaTestUtils.getSingleRecord(consumer, topic3DLT); assertThat(dltRecord.value()).isEqualTo("foo"); DefaultKafkaHeaderMapper mapper = new DefaultKafkaHeaderMapper(); Map<String, Object> map = new HashMap<>(); mapper.toHeaders(dltRecord.headers(), map); MessageHeaders headers = new MessageHeaders(map); assertThat(new String(headers.get(KafkaHeaders.DLT_EXCEPTION_FQCN, byte[].class))) .contains("RuntimeException"); assertThat(headers.get(KafkaHeaders.DLT_EXCEPTION_MESSAGE, byte[].class)) .isEqualTo("fail for max failures".getBytes()); assertThat(headers.get(KafkaHeaders.DLT_EXCEPTION_STACKTRACE)).isNotNull(); assertThat(headers.get(KafkaHeaders.DLT_ORIGINAL_OFFSET, byte[].class)[3]).isEqualTo((byte) 0); assertThat(headers.get(KafkaHeaders.DLT_ORIGINAL_PARTITION, byte[].class)[3]).isEqualTo((byte) 0); assertThat(headers.get(KafkaHeaders.DLT_ORIGINAL_TIMESTAMP, byte[].class)).isNotNull(); assertThat(headers.get(KafkaHeaders.DLT_ORIGINAL_TIMESTAMP_TYPE, byte[].class)).isNotNull(); assertThat(headers.get(KafkaHeaders.DLT_ORIGINAL_TOPIC, byte[].class)).isEqualTo(topic3.getBytes()); assertThat(headers.get("baz")).isEqualTo("qux".getBytes()); pf.destroy(); assertThat(stopLatch.await(10, TimeUnit.SECONDS)).isTrue(); verify(afterRollbackProcessor).clearThreadState(); logger.info("Stop testMaxAttempts"); }