[ISSUE #1552]⚡️Optimize ClientRequestProcessor error handle

[mxsm]

Which Issue(s) This PR Fixes(Closes)

Fixes #1552

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

• New Features

  • Enhanced error handling and response consistency in request processing.
  • Updated methods now return structured results, improving clarity in error reporting.

• Bug Fixes

  • Resolved issues related to nameserver readiness and topic route data handling, ensuring more reliable responses.

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📥 Commits

Reviewing files that changed from the base of the PR and between d9d6249 and 535d6a5.

Walkthrough

The changes in this pull request focus on enhancing the error handling within the ClientRequestProcessor and NameServerRequestProcessor structs in the RocketMQ nameserver module. The modifications streamline the request processing logic by adjusting method return types to utilize Result<Option<RemotingCommand>>, thereby improving error reporting and response consistency. Intermediate variables have been removed for clarity, and error handling has been standardized across methods, ensuring robust error management throughout the request processing flow.

Changes

File Path	Change Summary
rocketmq-namesrv/src/processor.rs	Modified process_request method to return results directly and streamlined error handling for request codes.
rocketmq-namesrv/src/processor/client_request_processor.rs	Updated get_route_info_by_topic and process_request methods to return crate::Result<Option<RemotingCommand>> for improved error handling.

Assessment against linked issues

Objective	Addressed	Explanation
Optimize error handling in ClientRequestProcessor (1552)	✅

Possibly related PRs

• [ISSUE #813]🔥Refactor processor error handle🚀 #814: Modifies process_request in NameServerRequestProcessor to return Result<Option<RemotingCommand>>, consistent with this PR.
• [ISSUE #1232]Optimize DefaultRequestProcessor code #1233: Updates process_request in DefaultRequestProcessor to return Result<Option<RemotingCommand>>, aligning with changes in this PR.
• [ISSUE #1285]⚡️Optimize name server ClientRequestProcessor#get_route_info_by_topic #1286: Includes relevant error handling improvements in get_route_info_by_topic, similar to this PR's modifications.
• [ISSUE #1480]⚡️Optimize SendMessageProcessor error handle🔥 #1481: Enhances error handling in SendMessageProcessor, related to the improvements made in this PR.

Suggested labels

ready to review, waiting-review

Suggested reviewers

• TeslaRustor
• SpaceXCN

Poem

In the land of code where rabbits play,
Error handling blooms in a bright new way.
With requests processed, clean and neat,
Our functions now dance to a rhythmic beat.
Hopping through logic, so clear and bright,
A joyful leap into the coding night! 🐇✨

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[rocketmq-rust-bot]

🔊@mxsm 🚀Thanks for your contribution 🎉. CodeRabbit(AI) will review your code first 🔥

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 37 lines in your changes missing coverage. Please review.

Project coverage is 24.99%. Comparing base (d9d6249) to head (535d6a5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...-namesrv/src/processor/client_request_processor.rs	0.00%	26 Missing ⚠️
rocketmq-namesrv/src/processor.rs	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1560      +/-   ##
==========================================
- Coverage   25.00%   24.99%   -0.01%     
==========================================
  Files         451      451              
  Lines       59870    59884      +14     
==========================================
  Hits        14970    14970              
- Misses      44900    44914      +14     

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