kafka get partition count for a topic

Question

How can I get number of partitions for any kafka topic from the code. I have researched many links but none seem to work.

Mentioning a few:

http://grokbase.c

Answer 1

To get the list of partitions the ideal/actual way is to use the AdminClients API

    Properties properties=new Properties();
    properties.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG,"localhost:9092");
    AdminClient adminClient=KafkaAdminClient.create(properties);
    Map jension = adminClient.describeTopics(Collections.singletonList("jenison")).all().get();
    System.out.println(jension.get("jenison").partitions().size());

This can be run as a standalone java method with no producer/consumer dependencies.