refactor(s3stream): refactor StreamReader Block object #2685
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lifepuzzlefun
requested review from
superhx,
SCNieh,
Chillax-0v0 and
Gezi-lzq
as code owners
daniel-y
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Copilot
and removed request for
SCNieh and
Chillax-0v0
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Pull Request Overview
This pull request refactors the StreamReader's Block object by extracting a new ExternalCacheBlock class to handle external cache operations, separating concerns between internal block management and external cache interactions.
- Introduces a new
ExternalCacheBlockclass for handling external cache-specific operations - Updates method signatures and variable declarations to use
ExternalCacheBlockwhere appropriate - Moves some logic from the existing
Blockclass to the newExternalCacheBlockclass
| data.release(); | ||
| data = null; | ||
| } | ||
| }); |
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The loadCf field may be null when release() is called, which would cause a NullPointerException. Consider adding a null check before calling whenComplete.
| }); | |
| if (loadCf != null) { | |
| loadCf.whenComplete((v, ex) -> { | |
| if (data != null) { | |
| data.release(); | |
| data = null; | |
| } | |
| }); | |
| } |
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| // the data block is first loaded or evict & reload | ||
| externalBlock.loadCf = dataBlockCache.getBlock(getOptions, objectReader, index).thenAccept(newData -> { | ||
| externalBlock.data = newData; | ||
| handleDataBlockChange(newData); |
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The handleDataBlockChange method is called from ExternalCacheBlock but is defined in the Block class, which will cause a compilation error since ExternalCacheBlock doesn't have access to this method.
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| } | ||
| released = true; | ||
| loadCf.whenComplete((nil, ex) -> { | ||
| private void handleDataBlockChange(DataBlock newData) { |
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The handleDataBlockChange method references instance fields (readCompleted, data, freeListenerHandle) from the Block class, but it's being called from ExternalCacheBlock which doesn't have these fields. This will cause compilation errors.
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