[ISSUE #1605]🚀Add a pop consume example🔥 #1606
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WalkthroughThe pull request introduces a new example for the RocketMQ client in Rust by adding a Changes
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## main #1606 +/- ##
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Coverage 25.49% 25.49%
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Files 459 459
Lines 60607 60607
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Hits 15451 15451
Misses 45156 45156 ☔ View full report in Codecov by Sentry. |
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Actionable comments posted: 2
🧹 Outside diff range and nitpick comments (2)
rocketmq-client/examples/consumer/pop_consumer.rs (2)
28-28: Update the consumer group name from placeholder value.The consumer group name
"please_rename_unique_group_name_4"appears to be a placeholder. Consider updating it to a more meaningful name that reflects its purpose in the example.-pub const CONSUMER_GROUP: &str = "please_rename_unique_group_name_4"; +pub const CONSUMER_GROUP: &str = "pop_consumer_example_group";
41-46: Add documentation explaining pop consumer behavior.While the code correctly sets up a pop consumer by disabling client rebalance, it would be helpful to add documentation explaining:
- What a pop consumer is
- How it differs from the default push consumer
- When to use this pattern
Add documentation above the consumer setup:
// Pop consuming pattern pulls messages from the server instead of having them pushed. // This pattern is useful when you need more control over message consumption rate // or when dealing with slow consumers.
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📒 Files selected for processing (2)
rocketmq-client/Cargo.toml(1 hunks)rocketmq-client/examples/consumer/pop_consumer.rs(1 hunks)
🔇 Additional comments (2)
rocketmq-client/Cargo.toml (1)
88-90: LGTM! Example declaration follows established patterns.
The new pop-consumer example is correctly declared and follows the existing structure of other example declarations in the file.
rocketmq-client/examples/consumer/pop_consumer.rs (1)
1-67: Verify uniqueness and completeness of the pop consumer example.
Let's ensure this example provides unique value and doesn't duplicate existing examples.
✅ Verification successful
Let me try another search strategy since the examples directory path seems incorrect.
Let me check the content of the other consumer examples to compare them with the pop consumer example.
Pop consumer example provides unique value and is correctly implemented
The pop consumer example is unique as it's the only example demonstrating the client_rebalance(false) configuration, which is essential for pop consumer functionality. The codebase contains other consumer examples that showcase different patterns:
- Broadcast consumer with MessageModel::Broadcasting
- Quickstart consumer with basic push consumer setup
- Ordered message consumer with MessageListenerOrderly
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash
# Search for similar consumer examples
echo "Searching for existing consumer examples..."
rg -l "client_rebalance.*false" examples/
rg -l "DefaultMQPushConsumer" examples/
# Check for consumer-related documentation
echo "Checking for consumer documentation..."
fd README.md | xargs rg -l "consumer"
Length of output: 431
Script:
#!/bin/bash
# Search for files with similar patterns in the entire codebase
echo "Searching for consumer examples..."
fd -t f "pop_consumer.rs|push_consumer.rs"
echo "Searching for client_rebalance usage..."
rg -l "client_rebalance.*false"
echo "Searching for DefaultMQPushConsumer usage..."
rg -l "DefaultMQPushConsumer"
echo "Checking documentation for pop consumer..."
rg -l "pop.*consumer" -g "*.md"
Length of output: 1706
Script:
#!/bin/bash
echo "Checking broadcast consumer example..."
cat rocketmq-client/examples/broadcast/push_consumer.rs
echo -e "\nChecking quickstart consumer example..."
cat rocketmq-client/examples/quickstart/consumer.rs
echo -e "\nChecking ordered message consumer example..."
cat rocketmq-client/examples/ordermessage/ordermessage_consumer.rs
Length of output: 9835
| consumer.start().await?; | ||
| let _ = tokio::signal::ctrl_c().await; | ||
| Ok(()) |
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🛠️ Refactor suggestion
Enhance shutdown handling.
While the code handles Ctrl+C signal, it should properly shutdown the consumer to ensure all resources are cleaned up.
- consumer.start().await?;
- let _ = tokio::signal::ctrl_c().await;
- Ok(())
+ consumer.start().await?;
+ tokio::signal::ctrl_c().await?;
+ info!("Shutting down consumer...");
+ consumer.shutdown().await?;
+ Ok(())📝 Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| consumer.start().await?; | |
| let _ = tokio::signal::ctrl_c().await; | |
| Ok(()) | |
| consumer.start().await?; | |
| tokio::signal::ctrl_c().await?; | |
| info!("Shutting down consumer..."); | |
| consumer.shutdown().await?; | |
| Ok(()) |
| impl MessageListenerConcurrently for MyMessageListener { | ||
| fn consume_message( | ||
| &self, | ||
| msgs: &[&MessageExt], | ||
| _context: &ConsumeConcurrentlyContext, | ||
| ) -> Result<ConsumeConcurrentlyStatus> { | ||
| for msg in msgs { | ||
| info!("Receive message: {:?}", msg); | ||
| } | ||
| Ok(ConsumeConcurrentlyStatus::ConsumeSuccess) | ||
| } | ||
| } |
There was a problem hiding this comment.
🛠️ Refactor suggestion
Enhance message listener implementation with proper error handling and processing example.
The current implementation only logs messages without demonstrating proper message processing patterns or error handling.
impl MessageListenerConcurrently for MyMessageListener {
fn consume_message(
&self,
msgs: &[&MessageExt],
_context: &ConsumeConcurrentlyContext,
) -> Result<ConsumeConcurrentlyStatus> {
for msg in msgs {
- info!("Receive message: {:?}", msg);
+ match process_message(msg) {
+ Ok(_) => {
+ info!(
+ "Successfully processed message - Topic: {}, Tags: {}, Keys: {}, Body: {}",
+ msg.get_topic(),
+ msg.get_tags().unwrap_or_default(),
+ msg.get_keys().unwrap_or_default(),
+ String::from_utf8_lossy(msg.get_body())
+ );
+ }
+ Err(e) => {
+ error!("Failed to process message: {}", e);
+ return Ok(ConsumeConcurrentlyStatus::ReconsumeLater);
+ }
+ }
}
Ok(ConsumeConcurrentlyStatus::ConsumeSuccess)
}
}
+fn process_message(msg: &MessageExt) -> Result<()> {
+ // Example processing logic
+ if msg.get_body().is_empty() {
+ return Err(Error::Other("Empty message body".into()));
+ }
+ // Add your message processing logic here
+ Ok(())
+}Committable suggestion skipped: line range outside the PR's diff.
rocketmq-rust-bot
added
approved
Which Issue(s) This PR Fixes(Closes)
Fixes #1605
Brief Description
How Did You Test This Change?
Summary by CodeRabbit
New Features
pop-consumer, demonstrating how to use the RocketMQ client in Rust.Documentation
Cargo.tomlto include the new example entry for easier access and usage guidance.