Improve Inherited Context Lookup in getConfigResources#11048
Improve Inherited Context Lookup in getConfigResources#11048he1l0world wants to merge 8 commits intoapache:mainfrom
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good initiative @he1l0world , let’s wait till we have #11042 merged with further work on this one. It would be interesting to see if any positive performance impact is given on startup, by this change. |
Codecov ReportAttention: Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #11048 +/- ##
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Coverage 16.57% 16.57%
- Complexity 13967 13968 +1
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Files 5743 5743
Lines 510468 510476 +8
Branches 62073 62073
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+ Hits 84616 84623 +7
- Misses 416390 416391 +1
Partials 9462 9462
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Sure! |
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Pull request overview
This PR optimizes Spring module context loading by memoizing inherited (parent-chain) context resources in DefaultModuleDefinitionSet#getConfigResources, reducing repeated hierarchy traversal during module initialization.
Changes:
- Introduced an internal cache (
configResourcesMap) to memoize inherited/inheritable context resources per module. - Refactored inherited-resource collection into a helper method (
collectInheritedResources) and simplified array creation.
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| Map<String, ModuleDefinition> modules; | ||
| Map<String, ApplicationContext> contexts = new HashMap<String, ApplicationContext>(); | ||
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| Map<String, Set<Resource>> configResourcesMap = new HashMap<String, Set<Resource>>(); |
| if (configResourcesMap.containsKey(def.getName())) { | ||
| return configResourcesMap.get(def.getName()); |
Description
This PR improves the performance and clarity of the
getConfigResourcesmethod in theModuleDefinitionSetclass.Previously,
getConfigResourcestraversed the entire module hierarchy on each call, redundantly re-computing inherited context resources from parent modules. This change introduces memoization using a configResourcesMap. The result is a more efficient and maintainable implementation, especially as the number of modules grows.The work builds upon PR #11042, which added unit test coverage for this method. With tests in place, this change now optimizes the implementation while maintaining the same expected behavior.
I’m submitting this PR in draft form to:
Types of changes
Feature/Enhancement Scale or Bug Severity
Feature/Enhancement Scale
Bug Severity
Screenshots (if appropriate):
How Has This Been Tested?
Verified using the unit tests introduced in PR #11042
How did you try to break this feature and the system with this change?
Verified that duplicate traversal across inherited modules no longer occurs