ivankelly commented on a change in pull request #3462: Added suppport for Kafka
partitioner and explicit setting of partition on record
URL: https://github.com/apache/pulsar/pull/3462#discussion_r252667984
##########
File path:
tests/pulsar-kafka-compat-client-test/src/test/java/org/apache/pulsar/tests/integration/compat/kafka/KafkaApiTest.java
##########
@@ -300,6 +302,133 @@ public void testPartitions() throws Exception {
consumers.forEach(Consumer::close);
}
+ @Test
+ public void testExplicitPartitions() throws Exception {
+ String topic = "testExplicitPartitions";
+
+ // Create 8 partitions in topic
+ @Cleanup
+ PulsarAdmin admin =
PulsarAdmin.builder().serviceHttpUrl(getHttpServiceUrl()).build();
+ admin.topics().createPartitionedTopic(topic, 8);
+
+ Properties producerProperties = new Properties();
+ producerProperties.put("bootstrap.servers", getPlainTextServiceUrl());
+ producerProperties.put("key.serializer",
IntegerSerializer.class.getName());
+ producerProperties.put("value.serializer",
StringSerializer.class.getName());
+
+ @Cleanup
+ Producer<Integer, String> producer = new
KafkaProducer<>(producerProperties);
+
+ Properties props = new Properties();
+ props.put("bootstrap.servers", getPlainTextServiceUrl());
+ props.put("group.id", "my-subscription-name");
+ props.put("enable.auto.commit", "true");
+ props.put("key.deserializer", StringDeserializer.class.getName());
+ props.put("value.deserializer", StringDeserializer.class.getName());
+
+ // Create Kakfa consumer and verify all messages came from intended
partition
+ @Cleanup
+ Consumer<String, String> consumer = new KafkaConsumer<>(props);
+ consumer.subscribe(Arrays.asList(topic));
+
+ int N = 8 * 3;
+
+ final int choosenPartition = 5;
+
+ for (int i = 0; i < N; i++) {
+ producer.send(new ProducerRecord<>(topic, choosenPartition, i,
"hello-" + i));
+ }
+
+ producer.flush();
+
+ for (int i = 0; i < N;) {
+ ConsumerRecords<String, String> records = consumer.poll(100);
+ i += records.count();
+
+ records.forEach(record -> {
+ assertEquals(record.partition(), choosenPartition);
+ });
+ }
+
+ // No more messages for this consumer
+ ConsumerRecords<String, String> records = consumer.poll(100);
+ assertEquals(records.count(), 0);
+ }
+
+ private static class MyCustomPartitioner implements Partitioner {
+
+ static int USED_PARTITION = 3;
+
+ @Override
+ public void configure(Map<String, ?> arg0) {
+ // Do nothing
+ }
+
+ @Override
+ public void close() {
+ // Do nothing
+ }
+
+ @Override
+ public int partition(String arg0, Object arg1, byte[] arg2, Object
arg3, byte[] arg4, Cluster arg5) {
+ // Dummy implementation that always return same partition
+ return USED_PARTITION;
+ }
+
+ }
+
+ @Test
+ public void testCustomRouter() throws Exception {
+ String topic = "testExplicitPartitions";
+
+ // Create 8 partitions in topic
+ @Cleanup
+ PulsarAdmin admin =
PulsarAdmin.builder().serviceHttpUrl(getHttpServiceUrl()).build();
+ admin.topics().createPartitionedTopic(topic, 8);
+
+ Properties producerProperties = new Properties();
+ producerProperties.put("bootstrap.servers", getPlainTextServiceUrl());
+ producerProperties.put("key.serializer",
IntegerSerializer.class.getName());
+ producerProperties.put("value.serializer",
StringSerializer.class.getName());
+ producerProperties.put("partitioner.class",
MyCustomPartitioner.class.getName());
+
+ @Cleanup
+ Producer<Integer, String> producer = new
KafkaProducer<>(producerProperties);
+
+ Properties props = new Properties();
+ props.put("bootstrap.servers", getPlainTextServiceUrl());
+ props.put("group.id", "my-subscription-name");
+ props.put("enable.auto.commit", "true");
+ props.put("key.deserializer", StringDeserializer.class.getName());
Review comment:
Shouldn't it be IntegerDeserializer?
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