feat : polish rabbit Settings #1607
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WalkthroughThe pull request introduces modifications to a Spring Boot RabbitMQ project, focusing on enhancing RabbitMQ configuration and message tracking. The changes include updating the project metadata in the POM file, refactoring the RabbitMQ configuration to use a tracking state repository, removing a separate confirmation callback class, and adjusting RabbitMQ-related properties in the application configuration. Additionally, new fields and constraints are added to the Changes
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🧹 Nitpick comments (5)
boot-rabbitmq-thymeleaf/src/main/resources/application.properties (3)
7-8: LGTM! Consider adding dead letter configuration.The addition of publisher returns along with the existing correlated confirm type provides robust message delivery tracking.
Consider adding dead letter exchange configuration for comprehensive error handling:
spring.rabbitmq.template.exchange=myapp-exchange spring.rabbitmq.template.routing-key=myapp.# spring.rabbitmq.template.default-receive-queue=myapp-queue spring.rabbitmq.template.dead-letter-exchange=myapp-dlx spring.rabbitmq.template.dead-letter-routing-key=myapp.dead
11-18: LGTM! Well-structured retry configuration with monitoring enabled.The retry configuration provides a balanced approach with:
- Gradual backoff (1.5x multiplier)
- Reasonable max interval (2s)
- Limited retry attempts (3)
- Monitoring capabilities enabled
Since monitoring is enabled, consider setting up Micrometer metrics to track retry attempts and failures:
management.metrics.tags.application=${spring.application.name} management.metrics.enable.spring.rabbitmq=true
20-21: Consider aligning template retry multiplier with listener configuration.While the mandatory flag is a good addition for handling unroutable messages, there's an inconsistency in retry multipliers:
- Template retry multiplier: 2x
- Listener retry multiplier: 1.5x
Consider using the same multiplier for consistency:
-spring.rabbitmq.template.retry.multiplier=2 +spring.rabbitmq.template.retry.multiplier=1.5boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (2)
93-104: Persisting correlation data for traceability.
Storing "processed" as status is a clear approach. However, consider also storingackandcauseinTrackingState(or another field) to preserve more context on each message flow (especially for negative acknowledgments).
105-114: Returns callback logs are thorough.
This helps administrators see which messages were returned and why. If further error handling or re-queueing is needed, consider capturing these events inTrackingStateor a separate domain table.
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📒 Files selected for processing (4)
boot-rabbitmq-thymeleaf/pom.xml(2 hunks)boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java(4 hunks)boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitTemplateConfirmCallback.java(0 hunks)boot-rabbitmq-thymeleaf/src/main/resources/application.properties(1 hunks)
💤 Files with no reviewable changes (1)
- boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitTemplateConfirmCallback.java
✅ Files skipped from review due to trivial changes (1)
- boot-rabbitmq-thymeleaf/pom.xml
🔇 Additional comments (6)
boot-rabbitmq-thymeleaf/src/main/resources/application.properties (1)
Line range hint
1-21: Verify RabbitMQ configuration completeness.Let's ensure all necessary RabbitMQ properties are present in the configuration.
✅ Verification successful
Let me check the application-local.properties file to see if it contains any of the missing properties or other relevant configurations.
RabbitMQ configuration review completed - Some optional properties missing
The core RabbitMQ connection properties (host, port, username, password) are properly configured in application-local.properties. However, a few optional but recommended properties are missing:
spring.rabbitmq.virtual-host- Default "/" will be used if not specifiedspring.rabbitmq.connection-timeout- Default timeout will be usedspring.rabbitmq.ssl.enabled- SSL is disabled by defaultThe existing configuration in both properties files provides a solid setup with:
- Publisher confirmation and returns
- Retry policies for both listener and template
- Proper concurrency settings
- Auto acknowledgment mode
- Observation enabled for monitoring
Since the missing properties have sensible defaults and the core configuration is complete, this setup is production-ready. The missing properties are optional and can be added if specific requirements arise for virtual hosts, SSL, or connection timeouts.
🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check for common RabbitMQ properties that might be missing # Common RabbitMQ properties to check PROPERTIES=( "spring.rabbitmq.host" "spring.rabbitmq.port" "spring.rabbitmq.username" "spring.rabbitmq.password" "spring.rabbitmq.virtual-host" "spring.rabbitmq.ssl.enabled" "spring.rabbitmq.connection-timeout" ) echo "Checking for common RabbitMQ properties..." for prop in "${PROPERTIES[@]}"; do if ! rg -q "^$prop=" boot-rabbitmq-thymeleaf/src/main/resources/application*.properties; then echo "Missing property: $prop" fi doneLength of output: 2091
Script:
#!/bin/bash # Check contents of application-local.properties echo "Contents of application-local.properties:" cat boot-rabbitmq-thymeleaf/src/main/resources/application-local.properties # Also check if there are any other property files that might contain RabbitMQ configuration echo -e "\nListing all property files:" fd -e properties . boot-rabbitmq-thymeleaf/src/main/resources/Length of output: 752
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (5)
3-4: Looks Good: Imports for TrackingState and TrackingStateRepository.
These imports are straightforward and align with the usage in the new callback logic.
37-37: Excellent use of a dedicated logger.
This approach centralizes logging, making it easier to maintain and read logs.
39-40: Dependency injection for TrackingStateRepository.
Using a final field ensures immutability. This is well-structured for future expansions of state-tracking logic.
41-42: Constructor injection is recommended best practice.
Constructor-based DI ensures the repository dependency is always provided, simplifying testing and improving code clarity.
89-92: Confirm callback logic: handle potential null correlationData.
The explicitAssert.notNull(correlationData, ...)call is a good defensive check, but note that the assertion will throw an exception if correlationData is null. Confirm whether we want a graceful fallback if correlationData is missing.
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🧹 Nitpick comments (5)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/entities/TrackingState.java (2)
21-23: Consider initializingcauseto an empty stringWhile
causecan be null by default, consider initializing it to an empty string (or storing an optional) to avoid potentialNullPointerExceptionissues or confusion in downstream processes.
67-70: Avoid setting a null causeIn some cases, the cause might be non-null requirement. Consider validating the
causefield or documenting when it can be null.boot-rabbitmq-thymeleaf/src/main/resources/db/changelog/01-create-tables.xml (1)
41-41: Unique index for correlation IDThis unique index complements the constraint at line 30. Ensure consistency between the unique constraint and the unique index definition to prevent duplication of logic.
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (2)
22-22: Assert usage is correctSpring’s
Assertis used for validation. Make sure the correlation data isn’t null in realistic scenarios, or handle the scenario gracefully if it can be null in odd corner cases.
104-113: Returns callback usage is helpfulThis block ensures that returned, un-routable messages are logged. Adding alerting or monitoring for such returns might be beneficial if the volume is high.
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📒 Files selected for processing (4)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java(3 hunks)boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/entities/TrackingState.java(3 hunks)boot-rabbitmq-thymeleaf/src/main/resources/application.properties(2 hunks)boot-rabbitmq-thymeleaf/src/main/resources/db/changelog/01-create-tables.xml(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- boot-rabbitmq-thymeleaf/src/main/resources/application.properties
🔇 Additional comments (14)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/entities/TrackingState.java (5)
18-18: Enforcing uniqueness is a good moveMaking
correlationIdunique ensures no duplicate correlation IDs are persisted. Keep in mind that any concurrency in writing these records may need conflict handling, especially if multiple messages share the same correlation ID.
45-47: Naming convention is consistentThe
isAck()method follows standard Java boolean naming conventions, enhancing readability.
49-52: Setter chaining is a good patternThis fluent setter pattern is helpful for method chaining in the code. Just make sure to keep consistency across all setters.
63-65: Method naming is clearThe
getCause()method aligns well with the domain-specific naming, indicating the reason behind a failure or confirmation status.
77-79: Enhanced logging intoString()The expanded
toString()implementation, includingackandcause, improves debugging. Ensure sensitive data isn’t accidentally logged.boot-rabbitmq-thymeleaf/src/main/resources/db/changelog/01-create-tables.xml (3)
30-30: Unique constraint adds integrityEnforcing uniqueness on
correlation_idaligns with the model changes in the entity. Verify that any existing or future data migrations handle conflicts gracefully.
32-32: Boolean column usageDefining
ackas a boolean column is straightforward. Ensure your database engine or ORM interpretation of boolean is compatible with your environment.
36-36: Columncausefor error trackingAdding
causeto store error reasons is beneficial. Confirm that the data type is large enough if causes can be lengthy messages.boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (6)
3-4: Repository import is validImporting the repository indicates you’re persisting tracking states on message confirmation. Confirm that the repository is tested thoroughly with integration tests.
5-6: Leverage robust loggingThe SLF4J logger is a good choice. Consider controlling log levels if the messages get too large or frequent in production.
34-35: Logger instantiation is standardDeclaring a static logger is conventional for logging in this class.
36-36: Field injection vs. constructor injectionUsing constructor injection for
TrackingStateRepositoryis recommended for testability and clarity. This is a good approach.
38-39: Constructor ensures repository availabilityForces a required dependency on
TrackingStateRepository. Good practice for ensuring needed resources are present.
86-103: Robust confirm callback logicStoring transaction info in
trackingStateRepositoryupon message acknowledgement is valuable for debugging. Handling partial failures (if persisting fails) may require fallback or retry logic, especially in production.
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🧹 Nitpick comments (1)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (1)
86-114: Consider enhancing error handling and maintainabilityThe implementation is good but could benefit from some improvements:
- The strict null check on correlationData might be too restrictive as RabbitMQ can send confirmations without correlation data.
- The tracking state creation logic could be extracted to a separate method for better maintainability.
- The "processed" status should be defined as a constant.
- Repository operations should include exception handling.
Consider refactoring to:
@Bean RabbitTemplateCustomizer rabbitTemplateCustomizer() { return rabbitTemplate -> { rabbitTemplate.setConfirmCallback( - (correlationData, ack, cause) -> { - Assert.notNull(correlationData, () -> "correlationData can't be null"); - log.info( - "correlation id : {} , acknowledgement : {}, cause : {}", - correlationData.getId(), - ack, - cause); - log.debug( - "persisted correlationId in db : {}", - trackingStateRepository.save( - new TrackingState() - .setCorrelationId(correlationData.getId()) - .setAck(ack) - .setCause(cause) - .setStatus("processed"))); - }); + (correlationData, ack, cause) -> { + if (correlationData != null) { + try { + String correlationId = correlationData.getId(); + log.info( + "correlation id : {} , acknowledgement : {}, cause : {}", + correlationId, + ack, + cause); + saveTrackingState(correlationId, ack, cause); + } catch (Exception ex) { + log.error("Failed to process confirmation", ex); + } + } + }); // Rest of the code... }; } + private static final String STATUS_PROCESSED = "processed"; + + private void saveTrackingState(String correlationId, boolean ack, String cause) { + try { + TrackingState state = new TrackingState() + .setCorrelationId(correlationId) + .setAck(ack) + .setCause(cause) + .setStatus(STATUS_PROCESSED); + trackingStateRepository.save(state); + log.debug("Tracking state saved for correlation id: {}", correlationId); + } catch (Exception ex) { + log.error("Failed to save tracking state for correlation id: {}", correlationId, ex); + } + }
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📒 Files selected for processing (2)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java(3 hunks)boot-rabbitmq-thymeleaf/src/main/resources/db/changelog/01-create-tables.xml(1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
- boot-rabbitmq-thymeleaf/src/main/resources/db/changelog/01-create-tables.xml
🔇 Additional comments (3)
boot-rabbitmq-thymeleaf/src/main/java/com/poc/boot/rabbitmq/config/RabbitMQConfig.java (3)
3-6: LGTM! Clean import additionsThe new imports are well-organized and necessary for the enhanced tracking and logging functionality.
Also applies to: 22-22
34-36: LGTM! Well-structured field additionsThe logger and repository fields are properly declared following best practices:
- Logger is static final following SLF4J pattern
- Repository is final ensuring immutability
38-39: LGTM! Clean constructor injectionThe constructor properly implements dependency injection for the tracking repository.
Summary by CodeRabbit
Project Metadata
RabbitMQ Configuration
Properties
Database Changes