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mxsm / rocketmq-rust

🚀Apache RocketMQ Rust implementation. Faster, safer, and with lower memory usage.
https://docs.rs/rocketmq-rust
Apache License 2.0
621 stars 80 forks source link

[ISSUE #777]🔥Fix Broker can not started🐛 #778

Closed mxsm closed 3 months ago

mxsm commented 3 months ago

Which Issue(s) This PR Fixes(Closes)

Fixes #777

Brief Description

How Did You Test This Change?

Summary by CodeRabbit

coderabbitai[bot] commented 3 months ago

Walkthrough

The changes focus on improving the downcasting logic for the pull_message_result_handler in the RocketMQ broker's runtime by enhancing the DefaultPullMessageResultHandler and modifying the PullMessageResultHandler trait. This includes adding type introspection methods and refining the downcasting process to handle message retrieval operations more precisely.

Changes

File Change Summary
rocketmq-broker/src/broker_runtime.rs Updated downcasting logic for pull_message_result_handler in BrokerRuntime implementation, improving type handling and error messaging.
rocketmq-broker/src/processor/default_pull_message_result_handler.rs Added as_any_mut and as_any methods to DefaultPullMessageResultHandler for type introspection.
rocketmq-broker/src/processor/pull_message_result_handler.rs Enhanced PullMessageResultHandler trait with type introspection methods and a detailed handle method for processing pull message results.

Sequence Diagram(s)

sequenceDiagram
    participant BrokerRuntime
    participant PullMessageResultHandler
    participant DefaultPullMessageResultHandler
    BrokerRuntime->>PullMessageResultHandler: Call handle()
    PullMessageResultHandler->>DefaultPullMessageResultHandler: Downcast to DefaultPullMessageResultHandler
    DefaultPullMessageResultHandler-->>PullMessageResultHandler: Process message retrieval
    PullMessageResultHandler-->>BrokerRuntime: Return result

Assessment against linked issues

Objective (Issue #777) Addressed Explanation
Fix the broker startup issue ✅
Refine downcasting logic for pull_message_handler ✅
Add type introspection methods to handlers ✅
Improve error messaging for downcasting failures ✅

Poem

In the realm of RocketMQ's might,
Handlers now cast just right,
With methods new and errors clear,
The broker starts with cheer.
Messages pull with ease,
Bugs now a gentle breeze.
Code shines bright,
In the RocketMQ twilight.

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mxsm commented 3 months ago

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