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@WaterWhisperer WaterWhisperer commented Dec 24, 2025

Which Issue(s) This PR Fixes(Closes)

Fixes #4856

Brief Description

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Summary by CodeRabbit

  • Refactor
    • Generalized batch messaging operations to support custom message types, providing greater flexibility and compatibility for message producers.

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Copilot AI review requested due to automatic review settings December 24, 2025 14:24
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coderabbitai bot commented Dec 24, 2025

Walkthrough

The send_batch_with_timeout method is refactored across three producer-related files to accept a generic type parameter M implementing MessageTrait + Send + Sync instead of a concrete Vec<Message>. The method signatures and trait definition are updated consistently, preserving existing behavior while broadening input type compatibility.

Changes

Cohort / File(s) Summary
MQProducer trait definition
rocketmq-client/src/producer/mq_producer.rs
Method signature updated: send_batch_with_timeout now accepts generic Vec<M> with bounds M: MessageTrait + Send + Sync instead of concrete Vec<Message>
Producer implementations
rocketmq-client/src/producer/default_mq_producer.rs,
rocketmq-client/src/producer/transaction_mq_producer.rs
Method implementations updated: both DefaultMQProducer and TransactionMQProducer implementations now use generic type parameter <M> with identical trait bounds; call sites unchanged

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Suggested labels

refactor♻️, approved, auto merge, AI review first

Suggested reviewers

  • TeslaRustor
  • mxsm
  • rocketmq-rust-bot

Poem

🐰 A generic twist for messages fair,
Now any type can venture there,
With MessageTrait as the binding spell,
The batch sends forth with types that dwell! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning)
Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. You can run @coderabbitai generate docstrings to improve docstring coverage.
✅ Passed checks (4 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title clearly and specifically describes the main change: refactoring send_batch_with_timeout to accept generic message types implementing MessageTrait.
Linked Issues check ✅ Passed The PR successfully refactors send_batch_with_timeout across three files to accept generic Vec instead of Vec, with M constrained by MessageTrait + Send + Sync, meeting the objective stated in issue #4856.
Out of Scope Changes check ✅ Passed All changes are focused on the send_batch_with_timeout method refactoring and directly address the linked issue without introducing unrelated modifications.
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Pull request overview

This PR refactors the send_batch_with_timeout method to accept generic message types implementing MessageTrait, improving API flexibility and consistency with the existing send_batch method.

Key Changes

  • Modified the send_batch_with_timeout method signature in the MQProducer trait to accept generic type M: MessageTrait + Send + Sync instead of concrete Vec<Message>
  • Updated both implementations (DefaultMQProducer and TransactionMQProducer) to use the generic type parameter
  • Changes maintain backward compatibility while enabling more flexible message type usage

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File Description
rocketmq-client/src/producer/mq_producer.rs Updated trait method signature to accept generic message type with appropriate trait bounds
rocketmq-client/src/producer/default_mq_producer.rs Updated implementation to use generic type parameter, leveraging the existing generic batch method
rocketmq-client/src/producer/transaction_mq_producer.rs Updated implementation to forward generic type parameter to the delegated default_producer call

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Actionable comments posted: 0

🧹 Nitpick comments (3)
rocketmq-client/src/producer/transaction_mq_producer.rs (1)

361-372: Refactoring successfully applied.

The generic signature correctly matches the trait definition and delegates properly to default_producer. However, the refactoring is incomplete—other batch methods like send_batch_to_queue, send_batch_with_callback, etc. (lines 374-447) still use the concrete Vec<Message> type. Consider generalizing them as well for API consistency.

Methods that could be generalized for consistency
  • send_batch_to_queue (line 374)
  • send_batch_to_queue_with_timeout (line 382)
  • send_batch_with_callback (line 393)
  • send_batch_with_callback_timeout (line 406)
  • send_batch_to_queue_with_callback (line 420)
  • send_batch_to_queue_with_callback_timeout (line 434)
rocketmq-client/src/producer/mq_producer.rs (1)

494-500: Trait signature correctly updated.

The generic signature aligns with the PR objective and is properly bounded. However, this creates an inconsistency within the MQProducer trait—send_batch (line 479) and send_batch_with_timeout are now generic, while the remaining batch methods (lines 513-616) still require Vec<Message>. Consider extending the refactoring to all batch operations for a uniform API surface.

rocketmq-client/src/producer/default_mq_producer.rs (1)

1053-1069: Implementation correctly handles the generic type.

The method properly delegates to the existing batch() helper (line 474), which already accepts generic Vec<M>. The logic is sound and consistent with the trait definition. As with the other files, consider generalizing the remaining batch methods (lines 1071-1170) to maintain API consistency across the producer interface.

📜 Review details

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between a9c115e and 99855df.

📒 Files selected for processing (3)
  • rocketmq-client/src/producer/default_mq_producer.rs
  • rocketmq-client/src/producer/mq_producer.rs
  • rocketmq-client/src/producer/transaction_mq_producer.rs
🧰 Additional context used
🧬 Code graph analysis (2)
rocketmq-client/src/producer/mq_producer.rs (2)
rocketmq-client/src/producer/default_mq_producer.rs (1)
  • send_batch_with_timeout (1053-1069)
rocketmq-client/src/producer/transaction_mq_producer.rs (1)
  • send_batch_with_timeout (361-372)
rocketmq-client/src/producer/default_mq_producer.rs (2)
rocketmq-client/src/producer/mq_producer.rs (1)
  • send_batch_with_timeout (494-500)
rocketmq-client/src/producer/transaction_mq_producer.rs (1)
  • send_batch_with_timeout (361-372)
⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (6)
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codecov bot commented Dec 24, 2025

Codecov Report

❌ Patch coverage is 0% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 33.34%. Comparing base (a9c115e) to head (99855df).

Files with missing lines Patch % Lines
...ocketmq-client/src/producer/default_mq_producer.rs 0.00% 6 Missing ⚠️
...tmq-client/src/producer/transaction_mq_producer.rs 0.00% 6 Missing ⚠️
Additional details and impacted files
@@           Coverage Diff           @@
##             main    #4976   +/-   ##
=======================================
  Coverage   33.34%   33.34%           
=======================================
  Files         742      742           
  Lines      108282   108288    +6     
=======================================
+ Hits        36103    36106    +3     
- Misses      72179    72182    +3     

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LGTM - All CI checks passed ✅

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[Refactor♻️] Refactor send_batch_with_timeout to accept generic message types implementing MessageTrait

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