[ISSUE #2205]🐛Fix stats_item.rs cargo clippy -- -D warnings error🍻

[mxsm]

Which Issue(s) This PR Fixes(Closes)

Fixes #2205

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

• Style
  • Improved code readability by updating emptiness check for list in stats computation methods
  • Replaced cs_list.len() > 0 with more idiomatic !cs_list.is_empty()

[coderabbitai]

Walkthrough

The pull request modifies the stats_item.rs file in the RocketMQ Rust project, specifically updating the emptiness check for cs_list from cs_list.len() > 0 to the more idiomatic Rust method !cs_list.is_empty(). This change improves code readability while maintaining the existing logic for checking list contents in the compute_stats_data and sampling methods.

Changes

File	Change Summary
rocketmq-common/src/common/stats/stats_item.rs	Replaced cs_list.len() > 0 with !cs_list.is_empty() in multiple methods

Assessment against linked issues

Objective	Addressed	Explanation
Fix cargo clippy warnings in stats_item.rs [#2205]	✅

Suggested labels

refactor♻️, auto merge, ready to review, waiting-review, AI review first, documentation

Suggested reviewers

• TeslaRustor
• SpaceXCN
• rocketmq-rust-bot

Poem

🐰 A Clippy Bunny's Delight

In Rust's green meadow, code so bright,
is_empty() hops with pure delight,
Replacing length with grace and might,
A cleaner path, a coder's flight!

Hop, hop, hooray! 🚀✨

---

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📥 Commits

Reviewing files that changed from the base of the PR and between 6174edd and f3fde3e.

📒 Files selected for processing (1)

• rocketmq-common/src/common/stats/stats_item.rs (1 hunks)

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🔇 Additional comments (2)

rocketmq-common/src/common/stats/stats_item.rs (2)

59-59: LGTM! Idiomatic Rust improvement.

The change from cs_list.len() > 0 to !cs_list.is_empty() is a good improvement that follows Rust's idioms. This addresses the Clippy len_zero lint while maintaining the same behavior.

---

59-59: Consider similar improvements in sampling methods.

While this change is good, there are similar emptiness checks in the sampling methods (sampling_in_seconds, sampling_in_minutes, sampling_in_hour) that could benefit from the same idiomatic improvement.

Here's how to apply the same improvement to all sampling methods:

// In sampling_in_seconds
-if cs_list.is_empty() {
// In sampling_in_minutes
-if cs_list.is_empty() {
// In sampling_in_hour
-if cs_list.is_empty() {

These are already using the idiomatic form, so I apologize for the confusion. The code is consistent across all methods.

---

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[rocketmq-rust-bot]

🔊@mxsm 🚀Thanks for your contribution🎉！

💡CodeRabbit(AI) will review your code first🔥！

Note

🚨The code review suggestions from CodeRabbit are to be used as a reference only, and the PR submitter can decide whether to make changes based on their own judgment. Ultimately, the project management personnel will conduct the final code review💥.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 28.74%. Comparing base (6174edd) to head (f3fde3e).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2206   +/-   ##
=======================================
  Coverage   28.74%   28.74%           
=======================================
  Files         498      498           
  Lines       71077    71077           
=======================================
  Hits        20430    20430           
  Misses      50647    50647           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[rocketmq-rust-bot]

LGTM