2.3 Kafka Admin API之查詢主題

public class AdminSample {
    private static final String topicName = "steven";

    private static final int partitionNumber = 1;

    private static final Short replicationFactor = 1;

    /**
     * 建立AdminClient
     */
    public static AdminClient adminClient() {
        Properties properties = new Properties();
        properties.setProperty(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, "127.0.0.1:9092");
        AdminClient adminClient = AdminClient.create(properties);
        return adminClient;
    }

    /**
     * 擷取topic清單
     */
    public static void main(String[] args) throws ExecutionException, InterruptedException {
        AdminClient adminClient = AdminSample.adminClient();
        ListTopicsResult listTopicsResult = adminClient.listTopics();
        Set<String> names = listTopicsResult.names().get();
        names.stream().forEach(System.out::println);
    }
}      

steven