fix(country): retry failed country fetch operations #48
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- Implement retry mechanism for failed event and headquarter country fetches. - Clear futures when complete to allow for potential future retries. - Add error logging for failed fetch operations.
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Summary of Changes
Hello @fulleni, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request refactors the CountryService to enhance its robustness in handling country data fetch operations. The primary goal is to ensure that failed fetch attempts do not prevent subsequent retries and that errors are properly logged and propagated. The changes involve modifying how asynchronous futures are managed, ensuring they are cleared upon completion, and improving error handling by logging exceptions before rethrowing them.
Highlights
- Improved Future Management for Retries: The logic for assigning
_eventCountriesFutureand_headquarterCountriesFuturenow includes a.whenCompletecallback. This ensures that the future is explicitly cleared (set tonull) once the asynchronous operation completes, whether successfully or with an error. This change is crucial for allowing subsequent fetch attempts if a previous one failed. - Enhanced Error Handling and Logging: The
finallyblocks in_fetchAndCacheEventCountriesand_fetchAndCacheHeadquarterCountrieshave been replaced withcatchblocks. These newcatchblocks now log any exceptions that occur during the fetch operation, including the error and stack trace, and then rethrow the exception. This provides better error visibility and ensures that errors are propagated up the call stack for proper handling.
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fulleni
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Refine-Cache-Concurrency-Cleanup-in-country-service
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Code Review
This pull request refactors the country fetching logic to correctly handle retries for failed operations. The changes improve the code's structure by decoupling the caching and fetching logic. Specifically, the responsibility for managing the in-flight request Future is moved to the calling methods (_getEventCountries and _getHeadquarterCountries), which now use .whenComplete to clear the future. This is a cleaner and more robust approach than the previous implementation. The addition of specific error logging in the fetch helper methods also improves observability. Overall, these changes enhance the correctness and maintainability of the CountryService.
Status
READY
Type of Change