Complete the ProducerIdManager component

[gaoran10]

Complete the ProducerIdManager component and add tests for it.

[jiazhai]

@BewareMyPower Would you please also help take a review?

[BewareMyPower]

The Codacy Static Code Analysis is weird.

Fields should be declared at the top of the class, before any method declarations, constructors, initializers or inner classes.

private int brokerId = 1;

Could you adjust the brokerId position and try again? If Codacy Static Code Analysis still failed, we'll just ignore it.

[jiazhai]

The Codacy Static Code Analysis is weird.

Fields should be declared at the top of the class, before any method declarations, constructors, initializers or inner classes.

private int brokerId = 1;

Could you adjust the brokerId position and try again? If Codacy Static Code Analysis still failed, we'll just ignore it.

@gaoran10 FYI

[gaoran10]

I found some methods before the field declarations, such as getListeners() and getKafkaAdvertisedListeners(), maybe we could adjust their positions, or ignored this code analysis problem.

[BewareMyPower]

@gaoran10 Yeah, you can adjust their positions. When these methods were added, the Codacy analysis was not enabled. And it seems that Codacy does only check the modified sources so that other PRs passed the tests.