Refactored duplicate code in TopicPublishInfo

[DivyanshIITB]

Refactored TopicPublishInfo to remove duplicate code

• Extracted common logic into a private method getMessageQueue.
• Updated selectOneMessageQueue to use the new method.
• Added a conditional version of queue selection for flexibility.

Resolves #6398

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 48.04%. Comparing base (2219fd8) to head (5c36694).

Files with missing lines	Patch %	Lines
...ocketmq/client/impl/producer/TopicPublishInfo.java	16.66%	5 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #9257      +/-   ##
=============================================
- Coverage      48.05%   48.04%   -0.01%     
- Complexity     12097    12100       +3     
=============================================
  Files           1322     1322              
  Lines          93127    93133       +6     
  Branches       11940    11941       +1     
=============================================
- Hits           44752    44747       -5     
- Misses         42831    42843      +12     
+ Partials        5544     5543       -1     

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[RongtongJin]

When is this code called?

[DivyanshIITB]

The method selectOneMessageQueue(String lastBrokerName) is called when selecting a message queue while avoiding the last used broker. It ensures that messages are not sent repeatedly to the same broker when possible, improving load balancing and fault tolerance.

If all available queues belong to the same broker, it falls back to selecting any queue

[DivyanshIITB]

Hi @RongtongJin,
I wanted to check if you had any thoughts on my response. Please let me know if any clarifications or further details are needed. Thanks for your time!