fix: init avatarservice only once #194
Conversation
WalkthroughThe Changes
Sequence DiagramssequenceDiagram
participant Client
participant AvatarsService
Client->>AvatarsService: onModuleInit()
AvatarsService->>AvatarsService: Check initialized
alt if not initialized
AvatarsService->>+AvatarsService: mutex.acquire()
note right of AvatarsService: Ensures exclusive access
AvatarsService->>AvatarsService: initialize()
AvatarsService-->>AvatarsService: initialized = true
AvatarsService->>-AvatarsService: mutex.release()
else if initialized
AvatarsService->>Client: No action needed
end
AvatarsService->>Client: Initialization complete
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Codecov ReportAll modified and coverable lines are covered by tests ✅
Additional details and impacted files@@ Coverage Diff @@
## dev #194 +/- ##
==========================================
+ Coverage 90.91% 91.28% +0.37%
==========================================
Files 65 65
Lines 2784 2777 -7
Branches 340 338 -2
==========================================
+ Hits 2531 2535 +4
+ Misses 241 231 -10
+ Partials 12 11 -1 ☔ View full report in Codecov by Sentry. |
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I can't guarantee that the modified code will be 100% bug-free, but at least the probability is greatly reduced! |
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Actionable comments posted: 0
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Files ignored due to path filters (2)
package.jsonis excluded by!**/*.jsonpnpm-lock.yamlis excluded by!pnpm-lock.yaml,!**/*.yaml
Files selected for processing (1)
- src/avatars/avatars.service.ts (2 hunks)
Files skipped from review as they are similar to previous changes (1)
- src/avatars/avatars.service.ts
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Files selected for processing (1)
- src/avatars/avatars.service.ts (2 hunks)
Additional context used
Biome
src/avatars/avatars.service.ts
[error] 12-12: Decorators are not valid here. (parse)
Decorators are only valid on class declarations, class expressions, and class methods.
You can enable parameter decorators by setting theunsafeParameterDecoratorsEnabledoption totruein your configuration file.
Additional comments not posted (5)
src/avatars/avatars.service.ts (5)
8-8: Import ofMutexis correct and necessary for the thread safety mechanism implemented.
15-16: Initialization ofmutexandinitializedvariables is correct and aligns with the goal of ensuring the service is initialized only once.
19-24: The use ofmutex.runExclusiveto ensure that initialization logic is thread-safe is well-implemented.
53-56: Consider enhancing the error message for better clarity when no predefined avatars are found.- throw new Error('no predefined avatars found'); + throw new Error('No predefined avatars found in the specified directory.');
12-12: The static analysis tool flagged an issue with decorators, but this seems to be a false positive as there are no decorators on line 12.Tools
Biome
[error] 12-12: Decorators are not valid here. (parse)
Decorators are only valid on class declarations, class expressions, and class methods.
You can enable parameter decorators by setting theunsafeParameterDecoratorsEnabledoption totruein your configuration file.
Nictheboy
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Actionable comments posted: 2
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Configuration used: CodeRabbit UI
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Files ignored due to path filters (2)
package.jsonis excluded by!**/*.jsonpnpm-lock.yamlis excluded by!**/pnpm-lock.yaml,!**/*.yaml
Files selected for processing (1)
- src/avatars/avatars.service.ts (2 hunks)
Additional context used
Biome
src/avatars/avatars.service.ts
[error] 12-12: Decorators are not valid here. (parse)
Decorators are only valid on class declarations, class expressions, and class methods.
You can enable parameter decorators by setting theunsafeParameterDecoratorsEnabledoption totruein your configuration file.
GitHub Check: codecov/patch
src/avatars/avatars.service.ts
[warning] 52-52: src/avatars/avatars.service.ts#L52
Added line #L52 was not covered by tests
[warning] 58-58: src/avatars/avatars.service.ts#L58
Added line #L58 was not covered by tests
[warning] 64-65: src/avatars/avatars.service.ts#L64-L65
Added lines #L64 - L65 were not covered by tests
[warning] 68-68: src/avatars/avatars.service.ts#L68
Added line #L68 was not covered by tests
[warning] 70-73: src/avatars/avatars.service.ts#L70-L73
Added lines #L70 - L73 were not covered by tests
[warning] 79-79: src/avatars/avatars.service.ts#L79
Added line #L79 was not covered by tests
Additional comments not posted (4)
src/avatars/avatars.service.ts (4)
8-8: Added import forMutexfromasync-mutex. This is necessary for the implementation of the mutex lock to ensure thread safety during the initialization of the service.
16-17: Initialization of mutex and boolean flag to manage single initialization of the service. This is a critical change for ensuring thatAvatarServiceis initialized only once, addressing the issue of multiple initializations.
20-25: Refactoring ofonModuleInitto use the mutex for exclusive access during initialization. This approach prevents race conditions and ensures that initialization happens only once. Good use of asynchronous patterns and mutex to handle concurrency.
41-84: The transaction block ensures that the database operations related to avatars are atomic and isolated, which is crucial when dealing with concurrent operations. The use ofLOCK TABLEensures that the avatar table is accessed exclusively during the operation, which is a strong approach to prevent race conditions during database operations.Tools
GitHub Check: codecov/patch
[warning] 52-52: src/avatars/avatars.service.ts#L52
Added line #L52 was not covered by tests
[warning] 58-58: src/avatars/avatars.service.ts#L58
Added line #L58 was not covered by tests
[warning] 64-65: src/avatars/avatars.service.ts#L64-L65
Added lines #L64 - L65 were not covered by tests
[warning] 68-68: src/avatars/avatars.service.ts#L68
Added line #L68 was not covered by tests
[warning] 70-73: src/avatars/avatars.service.ts#L70-L73
Added lines #L70 - L73 were not covered by tests
[warning] 79-79: src/avatars/avatars.service.ts#L79
Added line #L79 was not covered by tests
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I have used table lock to further fix this bug |
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Actionable comments posted: 3
Outside diff range and nitpick comments (1)
src/avatars/avatars.service.ts (1)
Line range hint
25-89: Optimize and ensure error handling in initialization logic.Consider simplifying the initialization logic to improve readability. Ensure that all potential errors in file operations and database interactions are properly handled. For instance, you could separate file reading and database operations into different methods or services.
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Files selected for processing (1)
- src/avatars/avatars.service.ts (2 hunks)
Additional context used
Biome
src/avatars/avatars.service.ts
[error] 12-12: Decorators are not valid here. (parse)
Decorators are only valid on class declarations, class expressions, and class methods.
You can enable parameter decorators by setting theunsafeParameterDecoratorsEnabledoption totruein your configuration file.
Additional comments not posted (2)
src/avatars/avatars.service.ts (2)
20-25: Thread-safe initialization implemented correctly.The use of mutex to ensure that the initialization happens only once and is thread-safe is correctly implemented. Good use of asynchronous programming to handle this operation.
20-25: Thread-safety measures are appropriate.The use of a mutex to handle race conditions during the initialization of the service is a proper implementation to ensure thread-safety.
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