AbstractMultiBrokerTest.java 文件源码

public List<KafkaStream<byte[], byte[]>> consume(String topic) {

        Properties consumerProperties = TestUtils.createConsumerProperties(
                ZK_HOST,
                UUID.randomUUID().toString(),
                "client",
                TIMEOUT);

        Map<String, Integer> topicCountMap = new HashMap<>();
        topicCountMap.put(topic, 1); // not sure why is this 1

        Map<String, List<KafkaStream<byte[], byte[]>>> consumerMap =
                Consumer.createJavaConsumerConnector (new ConsumerConfig(consumerProperties)).createMessageStreams(topicCountMap);

        return consumerMap.get(topic);
    }