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| Check name | Status | Explanation | Resolution |
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| Docstring Coverage |  |
Docstring coverage is 20.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 30 functions across 7 files. | Write docstrings for the functions missing them to satisfy the coverage threshold. |
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Check name Status Explanation Title check The title clearly and concisely describes the primary performance change: avoiding exception creation when no hook implements the error stage. Description check The description directly explains the lazy exception creation, NOT_READY/FATAL handling, provider-returned errors, test updates, and compatibility considerations. Linked Issues check Issue #2056requirements are met.OpenFeatureClient.evaluateFlaghandlesNOT_READYandFATALwith direct error details and no internal throw.shortCircuitpreserves the error code, message, de…Out of Scope Changes check The changed production files implement the lazy error path, direct NOT_READY/FATALhandling, and provider-error handling required by issue#2056. The test and fixture changes verify these behavior…
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #2057 +/- ##
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+ Coverage 92.87% 93.30% +0.42%
- Complexity 752 760 +8
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Files 62 62
Lines 1810 1836 +26
Branches 208 210 +2
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+ Hits 1681 1713 +32
+ Misses 77 73 -4
+ Partials 52 50 -2
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* synthetic errors created for the error hook method are only created lazily, if such error hooks exist Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
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Actionable comments posted: 1
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Review comments at @src/main/java/dev/openfeature/sdk/HookSupport.java:
- Line 131: Update error-hook dispatch in HookSupport so each hook is invoked
only if it overrides error; do not use the aggregate hasErrorHooks flag to
dispatch to hooks that inherit the no-op default.
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📒 Files selected for processing (7)
src/main/java/dev/openfeature/sdk/HookSupport.javasrc/main/java/dev/openfeature/sdk/HookSupportData.javasrc/main/java/dev/openfeature/sdk/MultiProviderHookExecutor.javasrc/main/java/dev/openfeature/sdk/OpenFeatureClient.javasrc/test/java/dev/openfeature/sdk/HookSupportTest.javasrc/test/java/dev/openfeature/sdk/OpenFeatureClientTest.javasrc/test/java/dev/openfeature/sdk/fixtures/HookFixtures.java
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I understand the motivation. and i see that this approach fixed the immediate path. but should we rather opt for an interface? |
I considered it, but that would be an opt-in (unless I misunderstand you) - which would silently stop calling error on existing hooks that override it (breaking), and opt-out gives no benefit until every hook (including contribs) adds it. Reflection is backwards compatible and works immediately, and it's computed once per class. I'm open to adding an explicit interface later as an override if we want it, but IMO it shouldn't be required. It's a bit of an odd situation, but it seems that currently, using the SDK without a provider (noop) can cause very serious performance issues in some cases, because stack traces are re-introduced by various monitoring agents, which causes a stack trace collection for every eval. |
Signed-off-by: Todd Baert <todd.baert@dynatrace.com>
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I see, and for now this is fine. But that also brings back the question for stabilizing the API, if exceptions are ether right containers for us, or if we should have an intermediate data object rather than utilizing exceptions. |
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Is it worth testing setHooks with multiple hooks in the various hook collections, to verify the bitwise or assignment?
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Fixes #2056
NOT_READY/FATALshort-circuits no longer throw; error details returned directly (same impact, but cheaper)executeErrorHooksnow takes aSupplier<? extends Exception>; and only creates exceptions of a hook is watchingerror, checked once at hook addition time)Evaluation results (
errorCode,errorMessage,reason, value) and the exception types passed to error hooks are unchanged.Note: Mockito's inline mock maker intercepts default methods on the interface itself, so
mock(Hook.class)/spy(Hook.class)no longer counts as implementingerror, and verifyingerroron such mocks will fail. I've updatedHookFixturesto spy on implementations that overrideerror. Sinceerroris a no-op default, I don't consider this a breaking change, but it may affect some tests in the contribs.