Jackson serialization for multi classloader

[yuanyuancin]

Summary by CodeRabbit

• New Features

  • Introduced new methods for retrieving request and response caches scoped to class loaders.
  • Added a method to clear the cache based on a specified class loader for improved cache management.

• Bug Fixes

  • Improved caching mechanism for handling multiple class loaders, enhancing overall flexibility and performance.

• Refactor

  • Updated existing methods to utilize new cache retrieval methods for better readability and maintainability.

[coderabbitai]

Walkthrough

The changes in the JacksonHelper class enhance the caching mechanism by scoping caches to the current class loader, improving flexibility and efficiency. New methods for cache retrieval streamline access, while a refactor of existing methods boosts code readability and maintainability, ensuring the same functional behavior. Additionally, the JacksonSerializer class gains a method for clearing caches based on class loaders, supporting dynamic class loading scenarios.

Changes

File	Change Summary
.../JacksonHelper.java	Refactored caching from ConcurrentHashMap<String, JavaType[]> and ConcurrentHashMap<String, JavaType> to ConcurrentHashMap<ClassLoader, Map<String, JavaType[]>> and ConcurrentHashMap<ClassLoader, Map<String, JavaType>>. Introduced getRequestCache() and getResponseCache() methods. Updated existing methods to utilize these new cache retrieval methods.
.../JacksonSerializer.java	Added a new public method clearCache(ClassLoader) to allow clearing of caches based on class loaders, enhancing cache management functionality.

Poem

In the meadow where rabbits play,
A helper’s changed in a clever way.
Caches now dance with class loader flair,
Fetching types with a hop and a care.
With each new method, the code’s a delight,
Let’s celebrate this sparkling insight! 🐇✨

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[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 2d8190f and 98d1e5d.

Files selected for processing (1)

• codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonHelper.java (6 hunks)

Additional comments not posted (6)

codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonHelper.java (6)

43-43: LGTM! Enhanced caching mechanism.

The change to use ConcurrentHashMap<ClassLoader, Map<String, JavaType[]>> for requestClassCache improves flexibility by scoping caches to class loaders, which is beneficial in multi-classloader environments.

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48-48: LGTM! Enhanced caching mechanism.

The change to use ConcurrentHashMap<ClassLoader, Map<String, JavaType>> for responseClassCache aligns with best practices for handling multiple class loaders.

---

60-68: LGTM! Improved cache access encapsulation.

The use of getRequestCache() to access the cache encapsulates the retrieval logic, enhancing readability and maintainability.

---

70-72: LGTM! Efficient cache initialization.

The getRequestCache() method efficiently initializes the cache for the current class loader using computeIfAbsent, ensuring thread safety.

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74-75: LGTM! Efficient cache initialization.

The getResponseCache() method follows best practices for initializing the cache with computeIfAbsent, ensuring thread safety and efficiency.

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136-144: LGTM! Improved cache storage encapsulation.

The use of getRequestCache() and getResponseCache() for storing data encapsulates cache access, enhancing maintainability and reducing direct manipulation.

[coderabbitai]

Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 98d1e5d and 11de6f4.

Files selected for processing (2)

• codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonHelper.java (6 hunks)
• codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonSerializer.java (1 hunks)

Files skipped from review as they are similar to previous changes (1)

• codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonHelper.java

Additional comments not posted (1)

codec/codec-jackson/src/main/java/com/alipay/sofa/rpc/codec/jackson/JacksonSerializer.java (1)

398-400: LGTM! Verify the usage of clearCache in the codebase.

The clearCache method is correctly implemented and enhances the functionality by allowing cache management for specific class loaders.

However, ensure that this method is used appropriately throughout the codebase and that it integrates well with existing functionality.

[EvenLjj]

LGTM