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[ISSUE #2340]🤡Add ReplicasInfo for rust🧑‍💻 #2343

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merged 1 commit into from
Jan 19, 2025

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@mxsm mxsm commented Jan 19, 2025

Which Issue(s) This PR Fixes(Closes)

Fixes #2340

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

  • New Features

    • Introduced ReplicasInfo struct for managing broker replica information
    • Added methods to get, set, and check replica details
    • Implemented functionality to track in-sync and not-in-sync replicas
  • Tests

    • Added comprehensive unit tests for ReplicasInfo struct and its methods

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coderabbitai bot commented Jan 19, 2025

Walkthrough

This pull request introduces a new ReplicasInfo struct in the RocketMQ Rust remoting protocol module. The struct is designed to manage broker replica information, providing comprehensive methods for handling replica-related data. It includes fields for master broker details, sync state epochs, in-sync and not-in-sync replicas, and implements serialization support. The implementation adds getter and setter methods, along with utility methods to check replica existence across different lists.

Changes

File Change Summary
rocketmq-remoting/src/protocol/body/broker_replicas_info.rs - Added ReplicasInfo public struct
- Implemented serialization with serde
- Added constructor and getter/setter methods
- Implemented replica existence checking methods
- Added unit tests for struct functionality

Assessment against linked issues

Objective Addressed Explanation
[#2340] Add ReplicasInfo for Rust

Possibly related PRs

Suggested labels

feature🚀, auto merge, ready to review, waiting-review, AI review first

Suggested reviewers

  • TeslaRustor
  • SpaceXCN
  • rocketmq-rust-bot

Poem

🚀 Replicas dancing in the code,
A struct so neat, its purpose showed
Getters and setters, methods so bright
Broker info now takes flight!
In Rust we trust, our data's might 🐰


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@rocketmq-rust-robot rocketmq-rust-robot added the feature🚀 Suggest an idea for this project. label Jan 19, 2025
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Actionable comments posted: 0

🧹 Nitpick comments (4)
rocketmq-remoting/src/protocol/body/broker_replicas_info.rs (4)

24-33: Add documentation for the ReplicasInfo struct.

The struct is well-designed with appropriate field types and serialization attributes. Consider adding documentation comments to describe the purpose of the struct and its fields.

Add documentation like this:

+/// Represents information about broker replicas in a RocketMQ cluster.
+/// 
+/// This struct maintains information about the master broker and its replicas,
+/// including synchronization state and epochs.
 #[derive(Serialize, Deserialize, PartialEq, Eq, Hash, Clone)]
 #[serde(rename_all = "camelCase")]
 pub struct ReplicasInfo {
+    /// The unique identifier of the master broker
     master_broker_id: u64,
+    /// The network address of the master broker
     master_address: CheetahString,
     // ... add docs for other fields

102-126: Refactor duplicate logic in existence check methods.

The is_exist_in_sync and is_exist_in_not_sync methods contain identical logic for checking replica existence. Consider extracting this into a private helper method.

 impl ReplicasInfo {
+    fn matches_replica(replica: &ReplicaIdentity, broker_name: &str, broker_id: u64, broker_address: &str) -> bool {
+        replica.broker_name == broker_name
+            && replica.broker_id == broker_id
+            && replica.broker_address == broker_address
+    }
+
     pub fn is_exist_in_sync(&self, broker_name: &str, broker_id: u64, broker_address: &str) -> bool {
-        self.in_sync_replicas.iter().any(|replica| {
-            replica.broker_name == broker_name
-                && replica.broker_id == broker_id
-                && replica.broker_address == broker_address
-        })
+        self.in_sync_replicas.iter().any(|replica| Self::matches_replica(replica, broker_name, broker_id, broker_address))
     }

     pub fn is_exist_in_not_sync(&self, broker_name: &str, broker_id: u64, broker_address: &str) -> bool {
-        self.not_in_sync_replicas.iter().any(|replica| {
-            replica.broker_name == broker_name
-                && replica.broker_id == broker_id
-                && replica.broker_address == broker_address
-        })
+        self.not_in_sync_replicas.iter().any(|replica| Self::matches_replica(replica, broker_name, broker_id, broker_address))
     }

292-386: Add test cases for edge cases.

The test coverage is comprehensive, but consider adding tests for:

  1. Empty strings in broker names and addresses
  2. Special characters in addresses (e.g., IPv6 addresses)
  3. Unicode characters in broker names
#[test]
fn handles_empty_strings() {
    let replicas_info = ReplicasInfo::new(1, "", 100, 200, vec![], vec![]);
    assert_eq!(replicas_info.get_master_address(), "");
}

#[test]
fn handles_ipv6_addresses() {
    let replicas_info = ReplicasInfo::new(
        1,
        "[2001:db8::1]:9876",
        100,
        200,
        vec![],
        vec![],
    );
    assert_eq!(replicas_info.get_master_address(), "[2001:db8::1]:9876");
}

31-32: Consider using HashSet for better lookup performance.

For large numbers of replicas, using HashSet instead of Vec could improve the performance of existence checks from O(n) to O(1).

-    in_sync_replicas: Vec<ReplicaIdentity>,
-    not_in_sync_replicas: Vec<ReplicaIdentity>,
+    in_sync_replicas: HashSet<ReplicaIdentity>,
+    not_in_sync_replicas: HashSet<ReplicaIdentity>,

Note: This would require adjusting the constructor and setter methods to convert from Vec to HashSet, and the getter methods to return a reference to HashSet instead.

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  • rocketmq-remoting/src/protocol/body/broker_replicas_info.rs (2 hunks)
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🔇 Additional comments (1)
rocketmq-remoting/src/protocol/body/broker_replicas_info.rs (1)

54-100: LGTM! Well-implemented getter and setter methods.

The getter and setter methods are implemented correctly with appropriate ownership semantics and type conversions.

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codecov bot commented Jan 19, 2025

Codecov Report

Attention: Patch coverage is 92.40506% with 12 lines in your changes missing coverage. Please review.

Project coverage is 28.47%. Comparing base (09f394e) to head (abb7924).
Report is 1 commits behind head on main.

Files with missing lines Patch % Lines
...remoting/src/protocol/body/broker_replicas_info.rs 92.40% 12 Missing ⚠️
Additional details and impacted files
@@            Coverage Diff             @@
##             main    #2343      +/-   ##
==========================================
+ Coverage   28.33%   28.47%   +0.13%     
==========================================
  Files         505      505              
  Lines       72686    72844     +158     
==========================================
+ Hits        20595    20741     +146     
- Misses      52091    52103      +12     

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

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LGTM

@rocketmq-rust-bot rocketmq-rust-bot merged commit 8ce52c8 into main Jan 19, 2025
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@rocketmq-rust-bot rocketmq-rust-bot added approved PR has approved and removed ready to review waiting-review waiting review this PR labels Jan 19, 2025
@mxsm mxsm deleted the feature-2340 branch January 19, 2025 15:01
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[Feature🚀] Add ReplicasInfo for rust
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